@article{DornFlammeNelles2012, author = {Dorn, T. and Flamme, S. and Nelles, M.}, title = {A review of energy recovery from waste in China}, series = {waste management \& research. Special issue: Solid Recovered Fuels. The official journal of the International Solid Waste Association. ISSN 0734-242X}, volume = {30}, journal = {waste management \& research. Special issue: Solid Recovered Fuels. The official journal of the International Solid Waste Association. ISSN 0734-242X}, number = {4}, pages = {432 -- 441}, year = {2012}, language = {en} } @inproceedings{AuelBoesSumi2015, author = {Auel, C. and Boes, R.M. and Sumi, T.}, title = {Abrasion damage estimation of sediment bypass tunnels: Validation and comparison of two prediction models}, series = {Annuals of Disaster Prevention Research Institute 58B, Kyoto University, Japan}, booktitle = {Annuals of Disaster Prevention Research Institute 58B, Kyoto University, Japan}, publisher = {Kyoto University}, doi = {10.25974/fhms-15154}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151547}, pages = {540 -- 549}, year = {2015}, abstract = {Abrasion damage estimation of sediment bypass tunnels: Validation and comparison of two prediction models. Annuals of Disaster Prevention Research Institute 58B, Kyoto Univer-sity, Japan}, language = {en} } @inproceedings{AuelSumi2016, author = {Auel, C. and Sumi, T.}, title = {Abrasion damage in sediment bypass tunnels}, series = {River Sedimentation: Proc. 12th Int. Conference on Hydroscience and Engineering, Tainan, Taiwan, 02-0020}, booktitle = {River Sedimentation: Proc. 12th Int. Conference on Hydroscience and Engineering, Tainan, Taiwan, 02-0020}, publisher = {ICHE}, doi = {10.25974/fhms-15143}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151436}, year = {2016}, abstract = {Sediment bypass tunnels are an effective and sustainable strategy against reservoir sedimentation. Sediments are diverted into the down-stream during floods without deposition in the reservoir, hence mor-phological and ecological variability increases. One major drawback of these tunnels is the severe invert abrasion due to a combination of high flow velocities and bedload sediment transport. The abrasion phenom-ena is briefly described, different abrasion prediction models are pre-sented and their applicability for the estimation of concrete abrasion is discussed.}, language = {en} } @article{AuelBoesSumi2018, author = {Auel, C. and Boes, R.M. and Sumi, T.}, title = {Abrasion prediction at Asahi sediment bypass tunnel based on Ishibashi's formula}, series = {Journal of Applied Water Engineering and Research}, journal = {Journal of Applied Water Engineering and Research}, doi = {10.1080/23249676.2016.1265470}, pages = {125 -- 138}, year = {2018}, abstract = {Abrasion in a concrete-lined sediment bypass tunnel is estimated using a Japanese state-of-the-art prediction model and validated by measured invert abrasion data at Asahi Reservoir, Japan. The model is described in detail, certain shortcomings are disclosed, and a revised version is proposed. The model consists of a kinetic energy term accounting for the impact by saltating particles, and a friction work term accounting for the grinding stress. It is found that the latter term yields concrete abrasion values being consistently a multiple compared to its kinetic term contradicting other research. Based on that, and a possible particle impact angle inconsistency, it is proposed to omit the friction work term. It is shown that the calculated abrasion is overestimated by 138\% on average compared with that measured, if both terms are accounted for. However, promising results are obtained with only 30\% overestimation by neglecting the friction work term.}, language = {en} } @article{AuelBoesSumi2018, author = {Auel, Christian and Boes, Robert M. and Sumi, Tetsuya}, title = {Abrasion prediction at Asahi sediment bypass tunnel based on Ishibashi's formula}, series = {Journal of Applied Water Engineering and Research}, journal = {Journal of Applied Water Engineering and Research}, doi = {10.1080/23249676.2016.1265470}, pages = {125 -- 138}, year = {2018}, language = {en} } @inproceedings{AuelTheneMuellerHagemannetal.2017, author = {Auel, C. and Thene, J.R. and M{\"u}ller-Hagemann, M. and Albaryak, I. and Boes, R.M.}, title = {Abrasion prediction at Mud Mountain sediment bypass tunnel}, series = {Proc. 2nd Int. Workshop on Sediment Bypass Tunnels, FP12, Kyoto, Japan}, booktitle = {Proc. 2nd Int. Workshop on Sediment Bypass Tunnels, FP12, Kyoto, Japan}, publisher = {ETH Zurich}, doi = {10.25974/fhms-15142}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151422}, year = {2017}, abstract = {A major drawback of sediment bypass tunnels is the potential for severe invert abrasion due to intense bedload sediment transport. This paper briefly describes the abrasion phenomena as well as the available models used to predict invert material loss. The application and calibration is demonstrated on the basis of the Mud Mountain sediment bypass tunnel, Washington, USA.}, language = {en} } @incollection{UhlHenrichsLangneretal.2016, author = {Uhl, M. and Henrichs, M. and Langner, J. and Wietb{\"u}scher, M.}, title = {Accounting for the urban water balance as a chance for urban planning}, series = {Proceedings of the 9th Novatech 2016 June 28th -July 1st}, booktitle = {Proceedings of the 9th Novatech 2016 June 28th -July 1st}, address = {Lyon}, year = {2016}, language = {en} } @misc{UhlHenrichsLangneretal.2016, author = {Uhl, M. and Henrichs, M. and Langner, J. and Wietb{\"u}scher, M.}, title = {Accounting for the urban water balance as a chance for urban planning 9th Novatech 2016, June 28th -July 1st 2016, Lyon}, year = {2016}, language = {en} } @inproceedings{DittmannSeeligThalmannetal.2023, author = {Dittmann, Daniel and Seelig, Alina and Thalmann, Mogens and Wilkes, Theresa and Junghans, Veikko and Klitzke, Sondra and Peters, Andr{\´e} and Haberkamp, Jens and Reemtsma, Thorsten and Ruhl, Aki Sebastian}, title = {Agricultural Water Reuse in Brandenburg, Germany: Potentials for Point-of-use Reuse Concepts and Extensive Risk Assessment for Fate of Organic Micropollutants}, series = {13th IWA International Conference on Water Reclamation and Reuse (Chennai, India)}, booktitle = {13th IWA International Conference on Water Reclamation and Reuse (Chennai, India)}, organization = {International Water Association (IWA)}, year = {2023}, language = {en} } @misc{FlammeGeiping2012, author = {Flamme, S. and Geiping, J.}, title = {Aktuelle Entwicklungen im Rahmen der G{\"u}tesicherung nach RAL-GZ 724. Mitgliederversammlung des bvse e. V. The Westin Bellevue Dresden, 20.09.2012}, year = {2012}, language = {en} } @incollection{GrotehusmannKhelilSiekeretal.1993, author = {Grotehusmann, D. and Khelil, A. and Sieker, F. and Uhl, M.}, title = {Alternative urban drainage concept and design}, series = {Proceedings of the 6th International Conference on Urban Storm Drainage, Niagara Falls, Canada}, booktitle = {Proceedings of the 6th International Conference on Urban Storm Drainage, Niagara Falls, Canada}, pages = {1213 -- 1218}, year = {1993}, language = {en} } @article{GrotehusmannKhelilSiekeretal.1994, author = {Grotehusmann, D. and Khelil, A. and Sieker, F. and Uhl, M.}, title = {Alternative urban drainage concept and design}, series = {Water Science and Technology}, volume = {29}, journal = {Water Science and Technology}, number = {1-2}, pages = {277 -- 282}, year = {1994}, language = {en} } @article{RichterWichernGroempingetal.2020, author = {Richter, Lea and Wichern, Marc and Gr{\"o}mping, Markus and Robecke, Ulrich and Haberkamp, Jens}, title = {Ammonium recovery from process water of digested sludge dewatering by membrane contactors}, series = {Water Practice \& Technology}, volume = {15}, journal = {Water Practice \& Technology}, number = {1}, issn = {1751-231X}, doi = {10.2166/wpt.2020.002}, pages = {84 -- 91}, year = {2020}, abstract = {Membrane contactors are a promising alternative for nitrogen removal and recovery from process water compared to other physicochemical and biological sidestream treatment processes. M{\"u}nster wastewater treatment plant (WWTP) is the first municipal WWTP in Germany operating a full-scale membrane contactor system to improve the nitrogen elimination and recovery efficiency. Factors influencing the operation and membrane performance are investigated in an accompanying research project. Additional operational aspects of the applied membrane modules are investigated in detail using a bench-scale membrane contactor. First results of the full-scale application demonstrate a high nitrogen removal efficiency of >95\%.}, language = {en} } @inproceedings{RichterWichernGroempingetal.2019, author = {Richter, Lea and Wichern, Marc and Gr{\"o}mping, Markus and Robecke, Ulrich and Haberkamp, Jens}, title = {Ammonium recovery from process water of digested sludge dewatering by membrane contactors}, series = {9th IWA Membrane Technology Conference 2019, Toulouse}, booktitle = {9th IWA Membrane Technology Conference 2019, Toulouse}, year = {2019}, language = {en} } @article{KoshibaAuelTsutsumietal.2018, author = {Koshiba, T. and Auel, C. and Tsutsumi, D. and Kantoush, S.A. and Sumi, T.}, title = {Application of an impact plate - bedload transport measuring system for high-speed flows}, series = {International Journal of Sediment Research}, journal = {International Journal of Sediment Research}, doi = {10.1016/j.ijsrc.2017.12.003}, pages = {35 -- 46}, year = {2018}, abstract = {To achieve the sustainable use of dams, the development of methods for sediment management in reservoirs is required. One such method includes the use of Sediment Bypass Tunnels (SBTs) to divert sediment around a dam, thereby preventing sedimentation in the reservoir. However, SBTs are prone to severe invert abrasion caused by the high sediment flux. Therefore, it is necessary to establish a measurement system of the sediment transport rate in these tunnels. One system to measure sediment transport in rivers is the Swiss plate geophone, which can register plate vibrations caused by particle impact. In Japan, the Japanese pipe microphone is used, and sediment transport is measured based on the sound emitted by the particle impact. In this study an attempt was made to optimize the advantages of both systems by fixing a microphone and an acceleration sensor to a steel plate. The results of calibration experiments with this new system are presented and compared with the existing methods. It was found that the acceleration sensor can detect sediment particles larger than 2 mm in diameter. Moreover, a new parameter, referred to as the detection rate, was introduced to describe the correlation between the actual amount of sediment and the registered output. Finally, two parameters - the saturation rate and hit rate - are introduced and exhibit strong correlation with the detection rate.}, language = {en} } @article{LOHSEDZIOPAK1999, author = {LOHSE, M. and DZIOPAK, J.}, title = {Aspects of drinking water supply in Germany}, series = {Environment Protection Engineering (Poland)}, volume = {25}, journal = {Environment Protection Engineering (Poland)}, number = {4}, pages = {11 -- 19}, year = {1999}, language = {en} } @article{PeirisHalleHaberkampetal.2008, author = {Peiris, B. R. H. and Hall{\´e}, C. and Haberkamp, J. and Legge, R. L. and Peldszus, S. and Moresoli, C. and Budman, C. and Amy, G. and Jekel, M. and Huck, P. M.}, title = {Assessing nanofiltration fouling in drinking water treatment using fluorescence fingerprinting and LC-OCD analyses}, series = {Water Science and Technology: Water Supply}, volume = {8}, journal = {Water Science and Technology: Water Supply}, number = {4}, pages = {459 -- 465}, year = {2008}, language = {en} } @misc{PeirisHalleHaberkampetal.2008, author = {Peiris, B. R. H. and Hall{\´e}, C. and Haberkamp, J. and Legge, R. L. and Peldszus, S. and Moresoli, C. and Budman, H. and Amy, G. and Jekel, M. and Huck, P. M.}, title = {Assessing nanofiltration fouling in drinking water treatment using fluorescence fingerprinting and LC-OCD analyses. 5th IWA Leading-Edge Conference, Z{\"u}rich (CH), 01.-04.06.2008}, year = {2008}, language = {en} } @article{HalleHuckPeldszusetal.2009, author = {Hall{\´e}, C. and Huck, P. M. and Peldszus, S. and Haberkamp, J. and Jekel, M.}, title = {Assessing the performance of biological filtration as pretreatment to low pressure membranes for drinking water}, series = {Environmental Science and Technology}, volume = {43}, journal = {Environmental Science and Technology}, number = {19}, pages = {3878 -- 3884}, year = {2009}, language = {en} } @inproceedings{LeutnantKleckersHaberkampetal.2019, author = {Leutnant, Dominik and Kleckers, Jonas and Haberkamp, Jens and Uhl, Mathias}, title = {Assessing the Performance of Decentralised Stormwater Management Measures by means of Continuous Turbidity Measurement}, series = {Novatech 2019 - 10th international conference on Urban Water - Strategies and solutions for sustainable management}, booktitle = {Novatech 2019 - 10th international conference on Urban Water - Strategies and solutions for sustainable management}, pages = {130 -- 133}, year = {2019}, abstract = {The in-situ performance of large decentralised stormwater treatment systems is investigated by means of continuous turbidity measurements. Turbidity measurements are used as a surrogate to continuously estimate Total Suspended Solid (TSS) concentrations. TSS event loads are calculated at the inlet and outlet of two stormwater treatment systems, which both are installed at the outlet of catchments with high pollution potential. The event-specific performance is defined as ratio between TSS loads of inflow and outflow. Based on measurement data obtained, the overall TSS load retention efficiency is about 32 \%.}, language = {en} } @article{UeberschaarGeipingZamzowetal.2017, author = {Ueberschaar, M. and Geiping, J. and Zamzow, M. and Flamme, S. and Rotter, V.}, title = {Assessment of element-specific recycling in WEEE pre-processing}, series = {Resources, Conservation \& Recycling}, journal = {Resources, Conservation \& Recycling}, number = {124}, issn = {0921-3449}, pages = {25 -- 41}, year = {2017}, language = {en} } @misc{ErnstHaberkampSchrotteretal.2004, author = {Ernst, M. and Haberkamp, J. and Schrotter, J.-C. and Jekel, M.}, title = {Batch and continuous heterogeneous catalytic ozonation of refractory industrial wastewater. IWA 2nd Leading-Edge Technology Conference, Prag (CZ), 01.-04.06.2004}, year = {2004}, language = {en} } @inproceedings{AuelAlbayrakBoes2015, author = {Auel, C. and Albayrak, I. and Boes, R.M.}, title = {Bed-load particle motion in supercritical open channel flows}, series = {Proc. 36th IAHR World Congress, Delft - The Hague, the Netherlands}, booktitle = {Proc. 36th IAHR World Congress, Delft - The Hague, the Netherlands}, publisher = {IAHR}, doi = {10.25974/fhms-15155}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151559}, year = {2015}, abstract = {Supercritical sediment-laden open channel flows occur in many hydraulic structures including dam outlets, weirs, and bypass tunnels. Due to high flow velocities and sediment flux severe problems such as erosion and abrasion damages are expected in these structures (Jacobs et al., 2001). Sediment bypass tunnels (SBT), as an effective measure to decrease reservoir sedimentation by bypassing sediments during floods, are exceptionally prone to high abrasion causing significant annual maintenance cost (Sumi et al., 2004; Auel and Boes, 2011). The Laboratory of Hydraulics, Hydrology and Glaciology (VAW) of ETH Zurich conducted a laboratory study to counteract these negative effects (Auel, 2014). The main goals of the project were to analyze the fundamental physical processes in supercritical flows as present in SBTs by investigating the mean and turbulence flow characteristics (Auel et al., 2014a), particle motion (Auel et al., 2014b; 2015b), and abrasion development caused by transported sediment. Besides new insights into the three listed topics, paramount interest is given to their inter-relations and the development of an easily applicable abrasion prediction model (Auel et al., 2015a). This paper presents selected results on the second topic, i.e. the analysis of saltation trajectories of single coarse particles in supercritical flow.}, language = {en} } @inproceedings{AuelAlbayrakBoes2014, author = {Auel, C. and Albayrak, I. and Boes, R.M.}, title = {Bedload particle velocity in supercritical open channel flows}, series = {Proc. 7th River Flow, Int. Conference on Fluvial Hydraulics (Schleiss et al. eds.)}, booktitle = {Proc. 7th River Flow, Int. Conference on Fluvial Hydraulics (Schleiss et al. eds.)}, publisher = {Taylor and Francis}, isbn = {978-1-138-02674-2}, doi = {10.25974/fhms-15157}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151579}, pages = {923 -- 931}, year = {2014}, abstract = {Single glass sphere motion recordings were conducted in a transitional-rough bed open channel at steady and highly supercritical flow similar to hydraulic conditions in sediment bypass tunnels. A high speed camera with a maximum resolution of 2,560 × 2,160 pixels was used to record the movement of bedload particles with diameters of D = 5.3, 10.3 and 17.5 mm. An in-house developed Particle Tracking Velocimetry (PTV) program was used to determine the transport mode and velocities of each particle for a wide range of Froude numbers up to Fo = 6. The relative roughness defined as the ratio of the bed roughness height ks to the water depth h varied from ks/h = 0.02-0.03. Particles were observed to move in rolling and saltation modes depending on the Shields number. The particle velocity shows a linearly increasing relationship with both friction velocity and Froude number nearly independent on the particle diameter. A linear relationship was also found between rolling and saltating particle velocities indicating that particle velocity does not depend on the transport mode in the range of the investigated hydraulic conditions. Scaling of particle velocity with the wave celerity plotted as a function of the Froude number adequately merged external data sets with the present data. As a consequence, a linear fit for a large Froude number range was obtained.}, language = {en} } @inproceedings{MuellerHagemannAuelAlbaryaketal.2018, author = {M{\"u}ller-Hagemann, M. and Auel, C. and Albaryak, I. and Boes, R.M.}, title = {Bedload transport and hydro-abrasive erosion at steep bedrock rivers and hydraulic structures}, series = {Riverflow, Lyon, France}, booktitle = {Riverflow, Lyon, France}, year = {2018}, language = {en} } @misc{HallePeldszusMcPhailetal.2008, author = {Hall{\´e}, C. and Peldszus, S. and McPhail, B. and Haberkamp, J. and Huck, P. M.}, title = {Biological filtration as pretreatment for membrane filtration and its potential for the removal of trace contaminants. Joint Annual OWWA/OMWA Conference \& Trade Show, London, Ontario (CAN), 27.-30.04.2008}, year = {2008}, language = {en} } @misc{AbdurahmanMohnColdeweyetal.2008, author = {Abdurahman, M. A. and Mohn, R. and Coldewey, W. G. and Awulachew, S. B. and Werner, J. and Kruse, B.}, title = {Calibration of Run-off Coefficients Considering Different Rainfall and Run-off Events and Seasonal Flows (Case Study for Laelay Wukro and GumSelassa Watersheds); Nile Development Forum, Cairo, Nov. 2008}, year = {2008}, language = {en} } @inproceedings{PaulsenRichterHaberkampetal.2021, author = {Paulsen, Svea and Richter, Lea and Haberkamp, Jens and Robecke, Ulrich and Gr{\"o}mping, Markus}, title = {Comparative life cycle analysis of nitrogen recovery from sludge dewatering process water using membrane contactors and the Haber-Bosch process}, series = {14. Aachener Tagung Wassertechnologie 2021}, booktitle = {14. Aachener Tagung Wassertechnologie 2021}, year = {2021}, language = {en} } @incollection{VosswinkelSchniedersMausetal.2012, author = {Vosswinkel, N. and Schnieders, A. and Maus, C. and Ebbert, S. and Mohn, R. and Uhl, M.}, title = {Comparison of Flow and Sedimentation Pattern for three Designs of Storm Water Tanks by Numerical Modelling (CFD)}, series = {9th International Conference on Urban Drainage Modelling}, booktitle = {9th International Conference on Urban Drainage Modelling}, address = {Belgrade, Serbia}, pages = {127 ff.}, year = {2012}, language = {en} } @misc{VosswinkelEbbertSchniedersetal.2012, author = {Vosswinkel, N. and Ebbert, S. and Schnieders, A. and Maus, C. and Mohn, R. and Uhl, M.}, title = {Comparison of Flow and Sedimentation Pattern for three Designs of Storm Water Tanks by Numerical Modelling (CFD). 9th International Conference on Urban Drainage Modelling. Belgrade, Serbia 4. -6. September 2012}, year = {2012}, language = {en} } @article{UhlRuss1990, author = {Uhl, M. and Ruß, H.-J.}, title = {Comparison of pollutant load calculation methods based on measured data - state of the investigation}, series = {Water Science and Technology}, volume = {22}, journal = {Water Science and Technology}, number = {10/11}, pages = {95 -- 102}, year = {1990}, language = {en} } @article{HaberkampErnstBoeckelmannetal.2008, author = {Haberkamp, J. and Ernst, M. and B{\"o}ckelmann, U. and Szewzyk, U. and Jekel, M.}, title = {Complexity of ultrafiltration membrane fouling caused by macromolecular dissolved organic compounds in secondary effluents}, series = {Water Research}, volume = {42}, journal = {Water Research}, number = {2}, pages = {3153 -- 3161}, year = {2008}, language = {en} } @article{UhlDittmer2005, author = {Uhl, M. and Dittmer, U.}, title = {Constructed Wetlands for CSO Treatment - An Overview of Practice and Research in Germany}, series = {Water Science and Technology}, volume = {51}, journal = {Water Science and Technology}, number = {9}, pages = {23 -- 30}, year = {2005}, language = {en} } @incollection{UhlDittmer2012, author = {Uhl, M. and Dittmer, U.}, title = {Constructed Wetlands for CSO Treatment - An Overview of Practice and Research in Germany}, series = {Keynote Paper in Proceedings of the 9th International Conference on Wetland Systems for Water Pollution Control, Avignon}, booktitle = {Keynote Paper in Proceedings of the 9th International Conference on Wetland Systems for Water Pollution Control, Avignon}, pages = {21 -- 28}, year = {2012}, language = {en} } @incollection{FlammeRohde2016, author = {Flamme, S. and Rohde, C.}, title = {Construction suitable for recycling}, series = {Karlsruhe Institute of Technology (KIT) und ZEBAU, Hamburg: SBE 16 Hamburg, International Conference on Sustainable Built Environment. Strategies-Stakeholders-Success factors}, booktitle = {Karlsruhe Institute of Technology (KIT) und ZEBAU, Hamburg: SBE 16 Hamburg, International Conference on Sustainable Built Environment. Strategies-Stakeholders-Success factors}, address = {Hamburg}, isbn = {978-3-00-052213-0}, doi = {10.5445/IR/1000051699}, pages = {256 -- 265}, year = {2016}, language = {en} } @inproceedings{BoeckmannAltensellMikaetal.2024, author = {B{\"o}ckmann, D. and Altensell, Nina and Mika, S. and Hoppe, H.}, title = {Data- and model-based stormwater treatment concepts for heavily polluted areas using P-RTC}, series = {16th International Conference on Urban Drainage}, booktitle = {16th International Conference on Urban Drainage}, year = {2024}, language = {en} } @inproceedings{HaberkampTieleschRossetal.2023, author = {Haberkamp, Jens and Tielesch, Carlos and Roß, Maximilian and Eschrich, Robert and Sandyk, Eduard and Dittmann, Daniel and Fischer, Andreas and Werner, Maximilian and Ruhl, Aki Sebastian}, title = {Decentralized Wastewater Treatment with a Small-scale Membrane Bioreactor for Agricultural Water Reuse}, series = {13th IWA International Conference on Water Reclamation and Reuse (Chennai, India)}, booktitle = {13th IWA International Conference on Water Reclamation and Reuse (Chennai, India)}, organization = {International Water Association (IWA)}, year = {2023}, language = {en} } @misc{DeleticDottoMcCarthyetal.2009, author = {Deletic, A. and Dotto, C. B. S. and McCarthy, D. T. and Kleidorfer, M. and Freni, G. and Mannina, G. and Uhl, M. and Fletcher, T. D. and Rauch, W. and Bertrand-Krajewski, J. L. and Tait, S.}, title = {Defining Uncertainties in Modelling of Urban Drainage Systems. In: Furumai, H.: Proceedings of the 8th International Conference on Urban Drainage Modelling, 07.09-11.09.2009, Tokio}, year = {2009}, language = {en} } @article{AuelBoesZiegleretal.2011, author = {Auel, C. and Boes, R. and Ziegler, T. and Oertli, C.}, title = {Design and construction of the sediment bypass tunnel at Solis}, series = {Int. Journal on Hydropower and Dams}, journal = {Int. Journal on Hydropower and Dams}, pages = {62 -- 66}, year = {2011}, language = {en} } @inproceedings{KoshibaSumiTsutsumietal.2016, author = {Koshiba, T. and Sumi, T. and Tsutsumi, D. and Kantoush, S.A. and Auel, C.}, title = {Development of a bedload transport meas-uring system in sediment bypass tunnels}, series = {84th Annual Meeting of ICOLD, Johannesburg, South Africa 4-49-4-58}, booktitle = {84th Annual Meeting of ICOLD, Johannesburg, South Africa 4-49-4-58}, publisher = {ICOLD}, isbn = {978-0-620-71042-8}, doi = {10.25974/fhms-15150}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151506}, year = {2016}, abstract = {Sediment Bypass Tunnels are operated to divert sediment around reservoirs reducing reservoir sedimentation. A major drawback of these tunnels is severe invert abrasion due to high velocity and sediment flows. There is an urgent need to establish innovative measurement systems of sediment transport rates in SBTs. In this paper, three bedload measuring systems, namely hydrophones, geophones, and newly developed plate microphones are introduced and compared. The Koshibu SBT is planned to operate from 2016. Plate microphones combined with geophones and other planned systems are installed in the tunnel. Results of preliminary tests and installation plans of bedload measurement are presented.}, language = {en} } @incollection{HenrichsLangnerUhl2015, author = {Henrichs, M. and Langner, J. and Uhl, M.}, title = {Development of a simplified Urban Water balance Model}, series = {Maere, T., Tik, S., Duchensne, S. und Vanrolleghem, P. (eds.): Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015, Vol I}, booktitle = {Maere, T., Tik, S., Duchensne, S. und Vanrolleghem, P. (eds.): Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015, Vol I}, pages = {17 -- 20}, year = {2015}, language = {en} } @article{HenrichsLangnerUhl2016, author = {Henrichs, M. and Langner, J. and Uhl, M.}, title = {Development of a simplified urban water balance model (WABILA)}, series = {Water Science \& Technology}, volume = {73}, journal = {Water Science \& Technology}, number = {8}, doi = {10.2166/wst.2016.020}, pages = {1785 -- 1795}, year = {2016}, language = {en} } @article{LeutnantMuschallaUhl2018, author = {Leutnant, Dominik and Muschalla, Dirk and Uhl, Mathias}, title = {Distribution-Based Calibration of a Stormwater Quality Model}, series = {Water}, volume = {2018}, journal = {Water}, doi = {10.3390/w10081027}, pages = {1027 -- 10}, year = {2018}, abstract = {Stormwater quality models are usually calibrated using observed pollutographs. As current models still rely on simplified model concepts for pollutant accumulation and wash-off, calibration results for continuous pollutant concentrations are highly uncertain. In this paper, we introduce an innovative calibration approach based on total suspended solids (TSS) event load distribution. The approach is applied on stormwater quality models for a flat roof and a parking lot for which reliable distributions are available. Exponential functions are employed for both TSS buildup and wash-off. Model parameters are calibrated by means of an evolutionary algorithm to minimize the distance between a parameterized lognormal distribution function and the cumulated distribution of simulated TSS event loads. Since TSS event load characteristics are probabilistically considered, the approach especially respects the stochasticity of TSS buildup and wash-off and, therefore, improves conventional stormwater quality calibration concepts. The results show that both experimental models were calibrated with high goodness-of-fit (Kolmogorov-Smirnov test statistic: 0.05). However, it is shown that events with high TSS event loads (>0.8 percentile) are generally underestimated. While this leads to a relative deviation of -28\% of total TSS loads for the parking lot, the error is compensated for the flat roof (+5\%). Calibrated model parameters generally tend to generate wash-off proportional to runoff, which is indicated by mass-volume curves. The approach itself is, in general, applicable and creates a new opportunity to calibrate stormwater quality models especially when calibration data is limited.}, language = {en} } @book{HaberkampCornelDrewesetal.2019, author = {Haberkamp, Jens and Cornel, Peter and Drewes, J{\"o}rg E. and Firmenich, Edgar and Fuhrmann, Tim and Gramel, Stefan and Hartmann, Andreas and Jendrischewski, Wolfgang and Karl, Volker and Krause, Steffen and L{\"u}bken, Manfred and Obermann, Ingmar and Schmidtlein, Florian and Sinn, Jochen and Ziegler, D{\"o}rte}, title = {DWA Topics: Non-Potable Water Reuse - Development, Technologies and International Framework for Agricultural, Urban and Industrial Uses}, publisher = {Deutsche Vereinigung f{\"u}r Wasserwirtschaft, Abwasser und Abfall e.V.}, address = {Hennef}, isbn = {978-3-88721-834-8}, publisher = {FH M{\"u}nster - University of Applied Sciences}, pages = {100}, year = {2019}, language = {en} } @article{AuelKobayashiTakemonetal.2017, author = {Auel, C. and Kobayashi, S. and Takemon, Y. and Sumi, T.}, title = {Effects of sediment bypass tunnels on grain size distribu-tion and benthic habitats in regulated rivers}, series = {International Journal of River Basin Management}, journal = {International Journal of River Basin Management}, doi = {10.1080/15715124.2017.1360320}, pages = {433 -- 444}, year = {2017}, abstract = {Four dams in Japan and Switzerland with Sediment Bypass Tunnels (SBT) as a measure against reservoir sedimentation were monitored to analyse the effects of sediment supply on the downstream environment based on up- to downstream differences in geomorphological and biological characteristics. SBT operation times ranged from 93 years at Pfaffensprung and 17 at Asahi to only three years at Solis and no operation at Koshibu. Sediment grain size distribution was monitored, and microhabitats and invertebrates were analysed in terms of richness and composition. Results showed that grain sizes were coarser down- than upstream at dams with newly established SBTs, while they were similar or finer for dams with long SBT operation. Analysis of biotic data revealed that microhabitat and invertebrate richness was low directly below the dam but increased further downstream the longer the SBT operation. Sedentary species dominated at locations where bed conditions were stable, e.g. directly downstream of the dam at Koshibu. Recovery of downstream environment with increasing SBT operation time was disclosed by the Bray-Curtis similarity index, which evaluated an overlap between up- and downstream reaches for both microhabitat composition and invertebrate communities. With increasing operation time, both indices increased, revealing the positive effects of long-term SBT operation.}, language = {en} } @inproceedings{AuelKobayashiSumietal.2016, author = {Auel, C. and Kobayashi, S. and Sumi, T. and Takemon, Y.}, title = {Effects of sediment bypass tunnels on sediment grain size distribution and benthic habitats}, series = {River Sedimentation: Proc. 13th Int. Symposium on River Sedimentation}, booktitle = {River Sedimentation: Proc. 13th Int. Symposium on River Sedimentation}, publisher = {CRC Press}, address = {Stuttgart, Germany}, pages = {825 -- 832}, year = {2016}, language = {en} } @inproceedings{KobayashiAuelSumietal.2016, author = {Kobayashi, S. and Auel, C. and Sumi, T. and Takemon, Y.}, title = {Effects of sediment supply by bypass tunnels on bed to-pography, grain size, and invertebrate habitat}, series = {Proc. 20th IAHR APD Congress, Colombo, Sri Lanka, 5B008}, booktitle = {Proc. 20th IAHR APD Congress, Colombo, Sri Lanka, 5B008}, publisher = {IAHR}, doi = {10.25974/fhms-15147}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151473}, year = {2016}, abstract = {To understand the effects of sediment bypass on environmental recovery of the degraded channels below dams, bed topography and bed materials above and below dam reaches were surveyed by ground-based measurements and aerial photos using quadrocopter. Coarse bed materials such as boulders were more represented below than above the Koshibu dam, where the bypass tunnel had not been in operation yet. The coarse materials formed steps and protruded in the water column within riffles and runs, both of which can increase slow-flow areas, below the dam. On the other hand, sand, gravel, and cobbles were abundant below as much as above the Asahi dam, where the bypass tunnel had been operated for >17 years. The downstream environment in terms of bed topography and grain size seems to have almost been recovered for the Asahi dam. However, less representation of large cobbles and boulders below the dam suggested a possibility of a selective deposition of coarse materials at the upstream of the bypass tunnel inlet.}, language = {en} } @article{LOHSEGALLENKEMPERBECKERetal.2003, author = {LOHSE, M. and GALLENKEMPER, B. and BECKER, G. and B{\"O}NING, T. and HAMS, S.}, title = {Effects of the Anaerobic Bio-Waste Treatment Processes on the Quality of the Digestion Residues and the Wastewater, Czestochowa}, series = {Polish Academy of sciences, Committee on environment engineering: Engineering and Protection of Environment}, volume = {6}, journal = {Polish Academy of sciences, Committee on environment engineering: Engineering and Protection of Environment}, pages = {275 -- 287}, year = {2003}, language = {en} } @misc{UhlGrobeJaniczeketal.2005, author = {Uhl, M. and Grobe, S. and Janiczek, M. and Merkel, W.}, title = {Enhanced Treatment of CSO with Vertical Flow Sand Filters. Proceedings of the 10th International Conference on Urban Drainage (ICUD), Copenhagen, 22.-26.08.2005}, year = {2005}, language = {en} } @inproceedings{HilbrandsAltensellMassingetal.2023, author = {Hilbrands, Eske and Altensell, Nina and Massing, Ch. and Ante, J. and Gr{\"u}ning, Helmut and Hoppe, H.}, title = {Evaluation of a state-of-the-art-adaptation of a downflow baffle with respect to the discharge of floating solids out of a storage and overflow basin by using CFD}, series = {11th NOVATECH 2023, Lyon, Frankreich}, booktitle = {11th NOVATECH 2023, Lyon, Frankreich}, year = {2023}, language = {en} } @article{UhlGitzelRistenpart1992, author = {Uhl, M. and Gitzel, R. and Ristenpart, E.}, title = {Examination of sediment samplers}, series = {Water Science and Technology}, volume = {25}, journal = {Water Science and Technology}, number = {8}, pages = {63 -- 69}, year = {1992}, language = {en} } @article{LOHSEDZIOPAK1998, author = {LOHSE, M. and DZIOPAK, J.}, title = {Examples for the Wastewater Disposal in the New Federal States of Germany}, series = {Environment Protection Engineering (Poland)}, volume = {24}, journal = {Environment Protection Engineering (Poland)}, number = {3-4}, pages = {53 -- 63}, year = {1998}, language = {en} } @misc{HaberkampKoenigWuerteleetal.2007, author = {Haberkamp, J. and K{\"o}nig, A. and W{\"u}rtele, A. and Ernst, M. and Jekel, M.}, title = {Extraction of bacterial extracellular polymeric substances and investigation of their impact on organic fouling of UF membranes. IWA 4th International Membranes Conference, Harrogate (UK), 15.-17.05.2007}, year = {2007}, language = {en} } @misc{ChelinMeyerMolleetal.2013, author = {Ch{\´e}lin, M. and Meyer, D. and Molle, P. and Fournel, J. and Woßniak, R. and Welker, A. and Schmitt, T. G. and Uhl, M. and Dittmer, U.}, title = {Factors influencing ammonium removal in vertical flow constructed wetland for CSO treatment: a German case study, 8th Novatech 2013, June 23th -27th 2013, Lyon}, year = {2013}, language = {en} } @article{MuellerHagemannAlbayrakAueletal.2020, author = {M{\"u}ller-Hagemann, M. and Albayrak, I and Auel, C and Boes, RM}, title = {Field Investigation on Hydroabrasion in High-Speed Sediment-Laden Flows at Sediment Bypass Tunnels}, series = {Water 12 (2)}, journal = {Water 12 (2)}, publisher = {MDPI}, address = {Basel}, doi = {10.25974/fhms-15126}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151268}, year = {2020}, abstract = {Wear due to sediment particles in fluid flows, also termed hydroabrasion' or simply 'abrasion', is an omnipresent issue at hydraulic structures as well as in bedrock rivers. However, interactions between flow field, particle motion, channel topography, material properties and abrasion have rarely been investigated on a prototype scale, leaving many open questions as to their quantitative interrelations. Therefore, we investigated hydroabrasion in a multi-year field study at two Swiss Sediment Bypass Tunnels (SBTs). Abrasion depths of various invert materials, hydraulics and sediment transport conditions were determined and used to compute the abrasion coefficients kv of different abrasion models for high-strength concrete and granite. The results reveal that these models are useful to estimate spatially averaged abrasion rates. The kv-value is about one order of magnitude higher for granite than for high-strength concrete, hence, using material-specific abrasion coefficients enhances the prediction accuracy. Three-dimensional flow structures, i.e., secondary currents occurring both, in the straight and curved sections of the tunnels cause incision channels, while also longitudinally undulating abrasion patterns were observed. Furthermore, hydroabrasion concentrated along joints and protruding edges. The maximum abrasion depths were roughly twice the mean abrasion depths, irrespective of hydraulics, sediment transport conditions and invert material.}, language = {en} } @book{Auel2014, author = {Auel, C.}, title = {Flow characteristics, particle motion and invert abrasion in sediment bypass tunnels}, series = {PhD thesis 22008, also published as VAW Mitteilungen 229 (R. Boes ed.)}, journal = {PhD thesis 22008, also published as VAW Mitteilungen 229 (R. Boes ed.)}, publisher = {ETH Zurich, Switzerland}, doi = {10.3929/ethz-a-010243883}, publisher = {FH M{\"u}nster - University of Applied Sciences}, year = {2014}, abstract = {Sediment bypass tunnels are an effective countermeasure against reservoir sedimenta-tion. They are operated at supercritical sediment-laden open channel flow conditions. The major drawback of these tunnels, besides high construction costs, is the severe invert abrasion caused by these flows provoking high annual maintenance costs. The project goal was to analyze the fundamental physical processes and to develop design criteria to decrease these negative effects. A laboratory study was performed in a scaled hydraulic model flume. The project was divided in three main test phases giving new insights into the dynamics of turbulence structures and particle motions, resulting bed abrasion and their interactions in a supercritical open channel flow, respectively. In phase A the mean and turbulent flow characteristics were investigated. In phase B single sediment particle motion was analyzed. In phase C the invert abrasion development in time and space was examined. Phase A revealed that secondary current cells affect the turbulent flow pattern leading to high bed shear stress at the wall vicinity. In phase B it was found, that particles were dominantly transported in saltation. Relationships between the saltation probability, and particle hop lengths and heights to the flow Shields parameter were found. The specific impact energy was determined by the impact velocity, number of impacts and the amount of particles transported in time. In phase C the results show that bed abrasion progresses with time both in the lateral and vertical direction. Two lateral incision chan-nels developed along the flume side walls at narrow flow conditions occurring at low flume-width to flow-depth aspect ratios b/h < 4-5, whereas randomly distributed pot-holes were found at wide channels where b/h > 4-5. The observed abrasion patterns match well with the spanwise bed shear stress distributions found in phase A. Further-more it was found that the abraded mass linearly increases with the transported sedi-ment mass allowing for a linear fit. Further results showed that abrasion increased with flow intensity and sediment transport rate, with highest values for the mean particle diameter category, whereas abrasion decreased with increasing material strength. Finally, a new formulation was developed based on Sklar's saltation abrasion model. A new abrasion coefficient CA is introduced correlating the impact energy and material properties with the gravimetric abrasion rate.}, language = {en} } @misc{HallePeldszusHaberkampetal.2008, author = {Hall{\´e}, C. and Peldszus, S. and Haberkamp, J. and Jekel, M. and Huck, P. M.}, title = {Fouling control of ultrafiltration membrane processes using biofiltration pre-treatment. Water Quality Technology Conference (WQTC), Cincinnati (USA), 16.-20.11.2008}, year = {2008}, language = {en} } @misc{UhlSchiedt2008, author = {Uhl, M. and Schiedt, L.}, title = {Green Roof Stormwater Retention - Monitoring Results. Proceedings of the 11th International Conference on Urban Drainage (ICUD), Edinburgh, 31.8.-5.9.2008}, year = {2008}, language = {en} } @article{HelftewesFlammeNelles2012, author = {Helftewes, M. and Flamme, S. and Nelles, M.}, title = {Greenhouse gas emissions of different waste treatment options for sector-specific commercial and industrial waste in Germany}, series = {waste management \& research. Special issue: Solid Recovered Fuels. The official journal of the International Solid Waste Association. ISSN 0734-242X}, volume = {30}, journal = {waste management \& research. Special issue: Solid Recovered Fuels. The official journal of the International Solid Waste Association. ISSN 0734-242X}, number = {4}, pages = {421 -- 431}, year = {2012}, language = {en} } @misc{MohnVosswinkelRissetal.2014, author = {Mohn, R. and Vosswinkel, N. and Riss, H. W. and G{\"o}ke, M.}, title = {Habitat Restoration in an Urban Channel - Experiences from Monitoring of a Pilot Action; River Flow 2014, Int. Conf. on Fluvial Hydraulics, Sept. 3-5 2014, Lausanne, Switzerland}, year = {2014}, language = {en} } @misc{VosswinkelMohnButtschardtetal.2013, author = {Vosswinkel, N. and Mohn, R. and Buttschardt, T. and Meyer, E. I. and B{\"u}nning, I. and Riss, H. W.}, title = {Habitat restoration in an urban channel - the M{\"u}nstersche Aa - experiences from monitoring of a pilot action; Symposium for European Freshwater Sciences (Poster); July 1-5 2013, M{\"u}nster, Germany}, year = {2013}, language = {en} } @misc{HaberkampErnstSchrotteretal.2004, author = {Haberkamp, J. and Ernst, M. and Schrotter, J.-C. and Jekel, M.}, title = {Heterogeneous Catalytic Ozonation of refractory industrial wastewater using systematically modified Al2O3. IWA 2nd International Young Researchers Conference, Wageningen (NL), 23.-24.04.2004}, year = {2004}, language = {en} } @misc{UhlHellberg2017, author = {Uhl, M. and Hellberg, B.}, title = {Hydrological Performance of combined Raintanks. In: Proceedings of the 14th IWA/IAHR International Conference on Urban Drainage, Prague, Czech Republic, pp. 1108-1111}, year = {2017}, language = {en} } @misc{ErnstHaberkampBewersdorffetal.2006, author = {Ernst, M. and Haberkamp, J. and Bewersdorff, I. and Jekel, M.}, title = {Impact and properties of Boron doped diamond electrodes applied to water and wastewater treatment. DECHEMA Industrial Water, Frankfurt am Main, 06.-08.02.2006}, year = {2006}, language = {en} } @article{HaberkampRuhlErnstetal.2007, author = {Haberkamp, J. and Ruhl, A. S. and Ernst, M. and Jekel, M.}, title = {Impact of coagulation and adsorption on DOC fractions of secondary effluent and resulting fouling behaviour in ultrafiltration}, series = {Water Research}, volume = {41}, journal = {Water Research}, number = {17}, pages = {3794 -- 3802}, year = {2007}, language = {en} } @article{HaberkampErnstPaaretal.2011, author = {Haberkamp, J. and Ernst, M. and Paar, H. and Pallischeck, D. and Amy, G. and Jekel, M.}, title = {Impact of organic fractions identified by SEC and fluorescence EEM on the hydraulic reversibility of ultrafiltration membrane fouling by secondary effluents}, series = {Desalination and Water Treatment}, volume = {29}, journal = {Desalination and Water Treatment}, number = {1-3}, pages = {73 -- 86}, year = {2011}, language = {en} } @inproceedings{KoshibaAuelTsutsumietal.2016, author = {Koshiba, T. and Auel, C. and Tsutsumi, D. and Kantoush, S.A. and Sumi, T.}, title = {Improvement of a bedload transport rate measuring systems in sediment bypass tunnels}, series = {River Sedimentation: Proc. 13th Int. Symposium on River Sedimentation}, booktitle = {River Sedimentation: Proc. 13th Int. Symposium on River Sedimentation}, publisher = {CRC Press}, address = {Stuttgart, Germany}, isbn = {978-1-138-02945-3}, doi = {10.25974/fhms-15146}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151462}, pages = {1038 -- 1045}, year = {2016}, abstract = {For long term use of dams, it is required to develop methods of sediment management in reservoirs. As one method, Sediment BypassTunnels (SBT) are operated in Japan and Switzerland to prevent reservoir sedimentation. SBT reduces sedimentation in reservoirs by routing the incoming sediments around the dam. SBT, however, is prone to severe invert abrasion caused by high sediment flux. Therefore, it is necessary to establish a measurement system of sediment transport rates in the SBT. A geophone was experimentally investigated in a laboratory flume at ETH Zurich. The sediment transport rate is calculated based on the plate vibration caused by hitting of gravels. In this paper, in order to alleviate disadvantages of a geophone, two newly developed sensor systems, a plate microphone and plate vibration sensor, are suggested and the results of their calibration experiments are shown. Finally, they are compared with the existing methods.}, language = {en} } @article{BaslerMaehnerFischeretal.2023, author = {Basler, Felix and M{\"a}hner, Dietmar and Fischer, Oliver and Hilbig, Harald}, title = {Influence of early-age vibration on concrete strength}, series = {Structural Concrete}, journal = {Structural Concrete}, issn = {1464-4177}, doi = {10.25974/fhms-17205}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-172052}, pages = {6505 -- 6519}, year = {2023}, abstract = {This report examines the strength of young and early age concrete that has been systematically exposed to horizontal, sinusoidal vibrations with varying vibration parameters. Specimens were subjected to vibrations of predefined vibration times (4-14 h) and the compressive strength was determined after a period of 28 days. It was found that the different parameters have no critical influence on compressive strength and that vibration prior to initial setting of the concrete can increase its strength. Additional information to examine the reasons for this increase was obtained by further investigations (nuclear magnetic resonance, x-ray diffraction, and thermogravimetric analysis).}, language = {en} } @inproceedings{VosswinkelMickeWietbuescheretal.2018, author = {Voßwinkel, N. and Micke, B. and Wietb{\"u}scher, M. and Gordon, S. and Mohn, R.}, title = {Influence of flow characteristics on the sedimentation efficiency of fine-grained particle fractions in rectangular storm water treatment tanks}, series = {13th International Conference on Hydroinformatics, Trento, Italien}, booktitle = {13th International Conference on Hydroinformatics, Trento, Italien}, year = {2018}, language = {en} } @incollection{SchleifenbaumHenrichsUhl2015, author = {Schleifenbaum, R. and Henrichs, M. and Uhl, M.}, title = {Influence of model structure, input data and calibration on CSO modelling}, series = {Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015, Vol I}, booktitle = {Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015, Vol I}, pages = {217 -- 222}, year = {2015}, language = {en} } @misc{MohnVosswinkelSchniedersetal.2010, author = {Mohn, R. and Vosswinkel, N. and Schnieders, A. and Henrichs, M. and Uhl, M.}, title = {Influence of Pipe-Junctions on Downstream Measuring Sections, predicted by a numerical model. Conference paper; Novatech 2010, June 28th-30th 2010, Lyon}, year = {2010}, language = {en} } @incollection{VosswinkelLipemeKouyiEbbertetal.2012, author = {Vosswinkel, N. and Lipeme Kouyi, G. and Ebbert, S. and Schnieders, A. and Maus, C. and La{\"i}ly, A.-G. and Mohn, R. and Uhl, M.}, title = {Influence of Transient Behavior on the Settling of Solids in Storm Water Tanks}, series = {9th International Conference on Urban Drainage Modelling}, booktitle = {9th International Conference on Urban Drainage Modelling}, address = {Belgrade, Serbia}, pages = {143 ff.}, year = {2012}, language = {en} } @misc{VosswinkelKouyiEbbertetal.2012, author = {Vosswinkel, N. and Kouyi, G. L. and Ebbert, S. and Schnieders, A. and Maus, C. and La{\"i}ly, A.- G. and Mohn, R. and Uhl, M.}, title = {Influence of Transient Behaviour on the Settling of Solids in Storm Water Tanks. 9th International Conference on Urban Drainage Modelling. Belgrade, Serbia 4. -6. September 2012.}, year = {2012}, language = {en} } @misc{HenrichsVosswinkelUhl2008, author = {Henrichs, M. and Voßwinkel, N. and Uhl, M.}, title = {Influence of Uncertainties on Calibration Results of a Hydrological Model, Proceedings of the the 11th International Conference on Urban Drainage (ICUD), Edinburgh, 31 .8.-5.9.2008.}, year = {2008}, language = {en} } @misc{Uhl2010, author = {Uhl, M.}, title = {Integrated planning and modular solutions for stormwater management in urban areas. Joint workshop of DAAD and Nanyang Technology University, Singapore, 29th and 30th November 2010, workshop handout}, year = {2010}, language = {en} } @incollection{DeisterHenrichsBrenneetal.2015, author = {Deister, L. and Henrichs, M. and Brenne, F. and Langner, J. and Uhl, M. and Stokman, A.}, title = {Interlinking urban development and urban drainage? - An action manual}, series = {Gesellschaft zur F{\"o}rderung des Instituts f{\"u}r Siedlungswasserwirtschaft an der Technischen Universit{\"a}t Braunschweig e. V. [Hrsg.] Re-Water Symposium. Band 87. Konferenz am 02.-03.11.2015, Braunschweig}, booktitle = {Gesellschaft zur F{\"o}rderung des Instituts f{\"u}r Siedlungswasserwirtschaft an der Technischen Universit{\"a}t Braunschweig e. V. [Hrsg.] Re-Water Symposium. Band 87. Konferenz am 02.-03.11.2015, Braunschweig}, edition = {1}, address = {Braunschweig}, isbn = {ISSN 0934-9731}, pages = {12 -- 21}, year = {2015}, language = {en} } @article{MakdissyHuckReidetal.2010, author = {Makdissy, G. and Huck, P. M. and Reid, M. M. and Leppard, G. G. and Peldszus, S. and Haberkamp, J. and Jekel, M.}, title = {Investigating the fouling layer of polyamide nanofiltration membranes treating two different surface waters: internal heterogeneity yet overall similarity}, series = {Journal of Water Supply: Research and Technology - Aqua}, volume = {59}, journal = {Journal of Water Supply: Research and Technology - Aqua}, number = {2-3}, pages = {164 -- 178}, year = {2010}, language = {en} } @inproceedings{Falter2004, author = {Falter, Bernhard}, title = {LINING STABILITY: AN ANALYSIS OF DAMAGED SEWERS}, series = {North American Society for Trenchless Technologies (NASTT), NO-DIG 2004, New Orleans, Louisiana, March 22-24, 2004}, booktitle = {North American Society for Trenchless Technologies (NASTT), NO-DIG 2004, New Orleans, Louisiana, March 22-24, 2004}, publisher = {North American Society for Trenchless Technology}, doi = {10.25974/fhms-19}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-190}, year = {2004}, abstract = {With the assessment of sewers and drains generally recognised criteria such as tightness, stability, hydraulic capability and efficiency are valid. For the assessment of the stability, however, there are often uncertainties. In this connection the ATV-DVWK Advisory Leaflet ATV M 127-2 represents a practical development of the system of rules and standards for the stability of earth-bedded pipelines that is called upon in the case of dimensioning for rehabilitation procedures. Nevertheless, further assumptions about the pipe-soil system are necessary which often are based on individual appraisals and experiences of the designer. To that end, in the years 1999 to the beginning of 2002, extensive experiments and theoretical investigations were carried out at the Universities of Bremen and Muenster as well as at the Bremen hanseWasser GmbH in order to assess more reliably the load-carrying capacity in particular of damaged host pipes in the ground. The research was supported by the Federal Ministry for Education and Research (BMB+F) under the short title ASSUR. The paper gives a view of the essential contents of the research; further information can be taken from the final report to ASSUR.}, language = {en} } @inproceedings{AuelSanjouOkamotoetal.2017, author = {Auel, C. and Sanjou, M. and Okamoto, T. and Kobayashi, S. and Sumi, T.}, title = {Mean flow and turbulence variation due to invert abrasion}, series = {Proc. 2nd Int. Workshop on Sediment Bypass Tunnels, FP15, Kyoto, Japan}, booktitle = {Proc. 2nd Int. Workshop on Sediment Bypass Tunnels, FP15, Kyoto, Japan}, publisher = {Kyoto University}, doi = {10.25974/fhms-15172}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151721}, year = {2017}, abstract = {Due to high bedload sediment transport, many sediment bypass tunnels (SBT) are prone to severe invert abrasion. However, there is little information about the flow characteristics in SBTs after invert abrasion initiated and progresses with time. In the present study, laboratory flume experiments were performed to investigate how the hydraulic conditions change after abrasion patterns developed on the invert. A typical invert abrasion pattern was produced using 3D-printing technique and implemented in the laboratory flume. Flow depths were measured to compare the initial with the abraded state. Furthermore, turbulence measurements using 2D-laser Doppler anemometry technique were performed to obtain the mean and turbulence flow characteristics. This paper describes results of these measurements focusing on the streamwise and vertical flow velocities, turbulence intensities and Reynolds shear stress.}, language = {en} } @misc{SchererHenrichsUhl2017, author = {Scherer, I. and Henrichs, M. and Uhl, M.}, title = {Measurement and modelling of the water balance of green roofs In: Proceedings of the 14th IWA/IAHR International Conference on Urban Drainage, Prague, Czech Republic, pp. 1224-1227}, year = {2017}, language = {en} } @misc{MausHoltrupUhl2008, author = {Maus, C. and Holtrup, F. and Uhl, M.}, title = {Measurement methods for in situ particle settling velocity. Proceedings of the 11th International Conference on Urban Drainage (ICUD), Edinburgh, 31.8.-5.9.2008}, year = {2008}, language = {en} } @article{StruckFlamme2023, author = {Struck, Franziska and Flamme, Sabine}, title = {Measuring recyclability - a key factor for resource efficiency evaluation}, series = {Detritus Journal}, journal = {Detritus Journal}, publisher = {Cisa Publisher}, address = {Padova}, issn = {2611-4135}, doi = {10.31025/2611-4135/2023.17251}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-160058}, pages = {1 -- 14}, year = {2023}, abstract = {The construction sector is one of the largest consumers of raw materials and energy, as well as a producer of CO2 in the European Union. To reduce environmental pollution and to preserve raw materials and energy, resource-efficient building elements must be designed. Even if laws demand resource-efficient product design in the building sector, there is no independent evaluation system for the resource efficiency of building elements (e.g., walls, roofs, floors). Such an evaluation should take the whole life cycle into account. The measurement of reusability and recyclability is therefore necessary. This article, therefore, describes the development of an evaluation system for reusability and recyclability to be included in resource efficiency assessment. Existing approaches and the special requirements of the building sector are considered. Finally, a practical example shows that the developed system is suitable for the assessment of reusability and recyclability. It can be used for the comparison of different construction methods or for the comparison of specific designs or products; thus, the evaluation system is helpful for architects as well as for product designers.}, language = {en} } @misc{Haberkamp2011, author = {Haberkamp, J.}, title = {Membrane filtration in wastewater treatment and reuse. Infrastructure Middle East 2011 - Conferences and Exhibition, Manama (BH), 17.-19.01.2011}, year = {2011}, language = {en} } @inproceedings{HenrichsSteinbrichLeistertetal.2019, author = {Henrichs, Malte and Steinbrich, Andreas and Leistert, Hannes and Scherer, Isabell and Sch{\"u}tz, Tobias and Weiler, Markus and Uhl, Mathias}, title = {Model Based Estimation of a Natural Water Balance as Reference for Planning in Urban Areas}, series = {New Trends in Urban Drainage Modelling. Proceedings of the 11th International Conference on Urban Drainage Modelling}, booktitle = {New Trends in Urban Drainage Modelling. Proceedings of the 11th International Conference on Urban Drainage Modelling}, editor = {Manina, Giorgio}, publisher = {Springer International Publishing}, isbn = {978-3-319-99866-4}, pages = {953 -- 957}, year = {2019}, abstract = {The water balance of urban areas differs considerably from the landscape water balance. Increased surface runoff, reduced groundwater recharge and evaporation change the hydrological regime, the morphology and ecology of water bodies close to the cities, the groundwater in the urban area and the urban climate. Today's urban drainage systems are designed to prevent, reduce, drain, seep away, evaporate or discharge precipitation into nearby surface waters with considerable delays. In doing so, it follows the principles of the German Water Resources Act (WHG) and the objectives of the relevant technical regulations DWA-A 102 to keep changes in the natural water balance by settlement activities as low as ecologically, technically and economically acceptable. A reference for the "natural" water balance has to be defined as a planning objective in order to quantify the hydrological changes in settlements. As a suitable reference, we propose to use the water balance of the landscape of the associated ecoregion with today's cultural land use without urban developments. This approach is more suitable to define local conditions than the water balance of the enclosed catchment. The presented calculation approach to define reference values of the water balance, uses soil and geological properties, precipitation and climate data and can be implemented and applied uniformly throughout Germany. The water balances in this study are simulated with the water balance model RoGeR. In this study, the developed approach is applied for five locations in Germany.}, language = {en} } @incollection{LeutnantHoferHenrichsetal.2015, author = {Leutnant, D. and Hofer, T. and Henrichs, M. and Muschalla, D. and Uhl, M.}, title = {Model-based time drift correction of asynchronous measurement data in urban drainage.}, series = {In: T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015}, booktitle = {In: T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015}, pages = {131 -- 134}, year = {2015}, language = {en} } @misc{YanVosswinkelEbbertetal.2013, author = {Yan, H. and Vosswinkel, H. and Ebbert, N. and Lipeme, S. and Kouyi, G. and Mohn, R. and Uhl, M. and Bertrand-Krajewski, J.-L.}, title = {Modeling of sediment transport, settling and erosion under transient condition in stormwater detention basin, 8th Novatech 2013, June 23th -27th 2013, Lyon}, year = {2013}, language = {en} } @article{HenrichsWelkerUhl2009, author = {Henrichs, M. and Welker, A. and Uhl, M.}, title = {Modelling of biofilters for ammonium reduction in combined sewer overflow}, series = {Water Science and Technology}, volume = {60}, journal = {Water Science and Technology}, number = {3}, pages = {825 -- 831}, year = {2009}, language = {en} } @misc{HenrichsPerrefortWelkeretal.2008, author = {Henrichs, M. and Perrefort, T. and Welker, A. and Uhl, M.}, title = {Modelling of Biofilters for Ammonium Reduction in CSO. Proceedings of the the 11th International Conference on Urban Drainage (ICUD), Edinburgh, 31.8.-5.9.2008}, year = {2008}, language = {en} } @article{HenrichsLangergraberUhl2007, author = {Henrichs, M. and Langergraber, G. and Uhl, M.}, title = {Modelling of organic matter degradation in constructed wetlands for treatment of combined sewer overflow. Science of the Total Environment}, series = {Science of the Total Environment}, volume = {380}, journal = {Science of the Total Environment}, number = {1-3}, pages = {196 -- 209}, year = {2007}, language = {en} } @inproceedings{StoverMohnSchlenkhoffetal.2023, author = {Stover, M. and Mohn, R. and Schlenkhoff, A. and Altensell, Nina}, title = {New approach to modeling particle transport in CFD to determine optimal retention in stormwater sedimentation tanks}, series = {11th NOVATECH 2023, Lyon, Frankreich}, booktitle = {11th NOVATECH 2023, Lyon, Frankreich}, year = {2023}, language = {en} } @inproceedings{Falter2008, author = {Falter, Bernhard}, title = {New developments in liner design due to ATV-M 127-2}, series = {North-American Society for Trenchless Technology 2008 No-Dig Conference \& Exhibition, Dallas, Texas, April 27 - Mai 2, 2008, Paper C-1-03-1}, booktitle = {North-American Society for Trenchless Technology 2008 No-Dig Conference \& Exhibition, Dallas, Texas, April 27 - Mai 2, 2008, Paper C-1-03-1}, publisher = {North-American Society for Trenchless Technology}, doi = {10.25974/fhms-68}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-687}, year = {2008}, abstract = {The German Code ATV-M 127-2 published in 2000 for the design of linings to rehabilitate sewers has proved itself a helpful guideline to find the optimum wall thickness of any liner material, e.g. CIPP or stainless steel sleeves. Many rehabilitation projects in different European countries have been performed successfully using this code. The code differentiates between three host pipe states: State I for untight sewers without cracks, state II for sewers with longitudinal cracks but a stable soil pipe system and state III for cracked pipes with larger deformations and considerable risk to collapse in the near future. State II sewers but installed close to the traffic surface must be calculated as a state III situation too. According to the code stress, deformation and stability tests are necessary. For many practical cases charts with stress factors and imperfection reductions allow to design without a computer. Numerous theoretical and experimental papers are available which mainly deal with circular linings. An evaluation of design codes carried out by experts of different countries shows a fairly good coincidence of the required wall thicknesses, but the assessment of pipeline damages by engineers is sometimes resulting in quite different assumptions necessary for the design input parameters. The paper reports about the progress in liner design since the 1st edition of the code. Additional clauses have to be introduced into the 2nd edition for non circular geometries (e.g. for hood and rectangular profile), imperfections describing practical and theoretical situations and new applications (e.g. railway crossings). International discussion can be useful to find safe and resources saving constructions.}, language = {en} } @inproceedings{RichterWichernGroempingetal.2019, author = {Richter, Lea and Wichern, Marc and Gr{\"o}mping, Markus and Robecke, Ulrich and Haberkamp, Jens}, title = {Nitrogen recovery from process water of digested sludge dewatering with membrane contactors}, series = {3rd IWA Resource Recovery Conference 2019, Venice}, booktitle = {3rd IWA Resource Recovery Conference 2019, Venice}, isbn = {9788894470000}, year = {2019}, language = {en} } @article{YanVosswinkelEbbertetal.2019, author = {Yan, H. and Vosswinkel, N. and Ebbert, S. and Lipeme Kouyi, G. and Mohn, R. and Uhl, M. and Bertrand-Krajewski, J.-L.}, title = {Numerical investigation of particles' transport, deposition and resuspension under unsteady conditions in constructed stormwater ponds}, series = {Environmental Sciences Europe}, volume = {32}, journal = {Environmental Sciences Europe}, number = {1}, publisher = {Springer}, pages = {10}, year = {2019}, language = {en} } @article{HaberkampGramelFuhrmann2020, author = {Haberkamp, Jens and Gramel, Stefan and Fuhrmann, Tim}, title = {Opportunities and Challenges for Non-Potable Water Reuse}, series = {KA International Special Edition}, volume = {2020/21}, journal = {KA International Special Edition}, pages = {22 -- 29}, year = {2020}, abstract = {Against the background of the world population growth, accompanied by increasing water demand on the one hand and at least regionally decreasing freshwater resources as a consequence of climate change on the other hand, reclaimed water is increasingly considered as a valuable substitute for natural water resources. DWA has recently published an extensive report covering a variety of aspects to be considered within the scope of non-potable water reuse. This article provides an overview of and excerpts from DWA Topics "Non-Potable Water Reuse - Development, Technologies and International Framework Conditions for Agricultural, Urban and Industrial Uses".}, language = {en} } @inproceedings{VosswinkelSchniedersMausetal.2012, author = {Vosswinkel, N. and Schnieders, A. and Maus, C. and Ebbert, S. and Mohn, R. and Uhl, M.}, title = {Optimizing Sedimentation in Storm Water Tanks by Numerical Flow Modelling (CFD)}, series = {9th International Conference on Urban Drainage Modelling, Belgrad, Serbien}, booktitle = {9th International Conference on Urban Drainage Modelling, Belgrad, Serbien}, year = {2012}, language = {en} } @inproceedings{AuelHagemannAlbayraketal.2015, author = {Auel, C. and Hagemann, M. and Albayrak, I. and Boes, R.M.}, title = {Optimizing the sustainability of sediment bypass tunnels to counter reservoir sedimentation}, series = {Proc. 25th ICOLD Congress, Q99 R31, Stavanger, Norway}, booktitle = {Proc. 25th ICOLD Congress, Q99 R31, Stavanger, Norway}, publisher = {ICOLD}, doi = {10.25974/fhms-15151}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-151518}, pages = {431 -- 452}, year = {2015}, abstract = {In order to prevent reservoir sedimentation, sediment bypass tunnels can be an efficient countermeasure restoring sediment continuity of impounded rivers. Although supercritical open channel flow conditions in these tunnelsprevent tun-nel blockage, in combination with the high bypassed sediment volume it may lead tosevere abrasion damages on inverts. Consequently,wear termed hydroabra-sionoccurs. Based on laboratoryexperiments, a theoretical model was devel-oped to predict abrasion rates and service life timeof sediment bypass tunnels. Insituexperiments are further conducted for model calibration to provide an abrasion prediction approach for field applications.Finally,recommendations concerning the hydraulic design of the tunnel as well as the structural design ofthe invertareprovided.}, language = {en} } @article{RistenpartAshleyUhl1994, author = {Ristenpart, E. and Ashley, R. M. and Uhl, M.}, title = {Organic near-bed fluid and particulate transport in combined sewers}, series = {Water Science Technology}, volume = {31}, journal = {Water Science Technology}, number = {7}, pages = {61 -- 68}, year = {1994}, language = {en} } @incollection{LeutnantHenrichsMuschallaetal.2015, author = {Leutnant, D. and Henrichs, M. and Muschalla, D. and Uhl, M.}, title = {OSCAR - An online supervisory control and urban drainage data acquisition system with R}, series = {T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015, Vol III}, booktitle = {T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015, Vol III}, pages = {135 -- 138}, year = {2015}, language = {en} } @incollection{SchleifenbaumHenrichsLeutnantetal.2015, author = {Schleifenbaum, R. and Henrichs, M. and Leutnant, D. and Fuchs, L.}, title = {Performance Benchmark for Urban Drainage Model Calibration.}, series = {T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015, Vol. II}, booktitle = {T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Qu{\´e}bec, Canada 20-23 September 2015, Vol. II}, pages = {1 -- 4}, year = {2015}, language = {en} } @misc{LeutnantMuschallaUhl2017, author = {Leutnant, D. and Muschalla, D. and Uhl, M.}, title = {Pollutant modelling based on empirical load distributions. In: Proceedings of the 14th IWA/IAHR International Conference on Urban Drainage, Prague, Czech Republic, pp. 132-135}, year = {2017}, language = {en} }