TY  - JOUR
A1  - Dorn, T.
A1  - Flamme, S.
A1  - Nelles, M.
T1  - A review of energy recovery from waste in China
JF  - waste management & research. Special issue: Solid Recovered Fuels. The official journal of the International Solid Waste Association. ISSN 0734-242X
Y1  - 2012
VL  - 30
IS  - 4
SP  - 432
EP  - 441
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Boes, R.M.
A1  - Sumi, T.
T1  - Abrasion damage estimation of sediment bypass tunnels: Validation and comparison of two prediction models
T2  - Annuals of Disaster Prevention Research Institute 58B, Kyoto University, Japan
N2  - 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
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151547
UR  - http://hdl.handle.net/2433/210040
SP  - 540
EP  - 549
PB  - Kyoto University
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Sumi, T.
T1  - Abrasion damage in sediment bypass tunnels
T2  - River Sedimentation: Proc. 12th Int. Conference on Hydroscience and Engineering, Tainan, Taiwan, 02-0020
N2  - 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.
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151436
PB  - ICHE
ER  - 
TY  - JOUR
A1  - Auel, Christian
A1  - Boes, Robert M.
A1  - Sumi, Tetsuya
T1  - Abrasion prediction at Asahi sediment bypass tunnel based on Ishibashi’s formula
JF  - Journal of Applied Water Engineering and Research
Y1  - 2018
U6  - http://dx.doi.org/10.1080/23249676.2016.1265470
SP  - 125
EP  - 138
ER  - 
TY  - JOUR
A1  - Auel, C.
A1  - Boes, R.M.
A1  - Sumi, T.
T1  - Abrasion prediction at Asahi sediment bypass tunnel based on Ishibashi’s formula
JF  - Journal of Applied Water Engineering and Research
N2  - 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.
Y1  - 2018
U6  - http://dx.doi.org/10.1080/23249676.2016.1265470
SP  - 125
EP  - 138
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Thene, J.R.
A1  - Müller-Hagemann, M.
A1  - Albaryak, I.
A1  - Boes, R.M.
T1  - Abrasion prediction at Mud Mountain sediment bypass tunnel
T2  - Proc. 2nd Int. Workshop on Sediment Bypass Tunnels, FP12, Kyoto, Japan
N2  - 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.
Y1  - 2017
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151422
PB  - ETH Zurich
ER  - 
TY  - CHAP
A1  - Uhl, M.
A1  - Henrichs, M.
A1  - Langner, J.
A1  - Wietbüscher, M.
T1  - Accounting for the urban water balance as a chance for urban planning
T2  - Proceedings of the 9th Novatech 2016 June 28th –July 1st
Y1  - 2016
CY  - Lyon
ER  - 
TY  - GEN
A1  - Uhl, M.
A1  - Henrichs, M.
A1  - Langner, J.
A1  - Wietbüscher, M.
T1  - Accounting for the urban water balance as a chance for urban planning  9th Novatech 2016, June 28th -July 1st 2016, Lyon
Y1  - 2016
ER  - 
TY  - CHAP
A1  - Dittmann, Daniel
A1  - Seelig, Alina
A1  - Thalmann, Mogens
A1  - Wilkes, Theresa
A1  - Junghans, Veikko
A1  - Klitzke, Sondra
A1  - Peters, André
A1  - Haberkamp, Jens
A1  - Reemtsma, Thorsten
A1  - Ruhl, Aki Sebastian
T1  - Agricultural Water Reuse in Brandenburg, Germany: Potentials for Point-of-use Reuse Concepts and Extensive Risk Assessment for Fate of Organic Micropollutants
T2  - 13th IWA International Conference on Water Reclamation and Reuse (Chennai, India)
Y1  - 2023
ER  - 
TY  - GEN
A1  - Flamme, S.
A1  - Geiping, J.
T1  - Aktuelle Entwicklungen im Rahmen der Gütesicherung nach RAL-GZ 724. Mitgliederversammlung des bvse e. V. The Westin Bellevue Dresden, 20.09.2012
Y1  - 2012
ER  - 
TY  - JOUR
A1  - Grotehusmann, D.
A1  - Khelil, A.
A1  - Sieker, F.
A1  - Uhl, M.
T1  - Alternative urban drainage concept and design
JF  - Water Science and Technology
Y1  - 1994
VL  - 29
IS  - 1-2
SP  - 277
EP  - 282
ER  - 
TY  - CHAP
A1  - Grotehusmann, D.
A1  - Khelil, A.
A1  - Sieker, F.
A1  - Uhl, M.
T1  - Alternative urban drainage concept and design
T2  - Proceedings of the 6th International Conference on Urban Storm Drainage, Niagara Falls, Canada
Y1  - 1993
SP  - 1213
EP  - 1218
ER  - 
TY  - CHAP
A1  - Richter, Lea
A1  - Wichern, Marc
A1  - Grömping, Markus
A1  - Robecke, Ulrich
A1  - Haberkamp, Jens
T1  - Ammonium recovery from process water of digested sludge dewatering by membrane contactors
T2  - 9th IWA Membrane Technology Conference 2019, Toulouse
Y1  - 2019
ER  - 
TY  - JOUR
A1  - Richter, Lea
A1  - Wichern, Marc
A1  - Grömping, Markus
A1  - Robecke, Ulrich
A1  - Haberkamp, Jens
T1  - Ammonium recovery from process water of digested sludge dewatering by membrane contactors
JF  - Water Practice & Technology
N2  - Membrane contactors are a promising alternative for nitrogen removal and recovery from process water compared
to other physicochemical and biological sidestream treatment processes. Münster 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%.
KW  - ammonium removal
KW  - membrane contactors
KW  - municipal wastewater
KW  - nitrogen recovery
KW  - process water treatment
Y1  - 2020
U6  - http://dx.doi.org/10.2166/wpt.2020.002
SN  - 1751-231X
VL  - 15
IS  - 1
SP  - 84
EP  - 91
ER  - 
TY  - JOUR
A1  - Koshiba, T.
A1  - Auel, C.
A1  - Tsutsumi, D.
A1  - Kantoush, S.A.
A1  - Sumi, T.
T1  - Application of an impact plate - bedload transport measuring system for high-speed flows
JF  - International Journal of Sediment Research
N2  - 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.
Y1  - 2018
U6  - http://dx.doi.org/10.1016/j.ijsrc.2017.12.003
SP  - 35
EP  - 46
ER  - 
TY  - JOUR
A1  - LOHSE, M.
A1  - DZIOPAK, J.
T1  - Aspects of drinking water supply in Germany
JF  - Environment Protection Engineering (Poland)
Y1  - 1999
VL  - 25
IS  - 4
SP  - 11
EP  - 19
ER  - 
TY  - JOUR
A1  - Peiris, B. R. H.
A1  - Hallé, C.
A1  - Haberkamp, J.
A1  - Legge, R. L.
A1  - Peldszus, S.
A1  - Moresoli, C.
A1  - Budman, C.
A1  - Amy, G.
A1  - Jekel, M.
A1  - Huck, P. M.
T1  - Assessing nanofiltration fouling in drinking water treatment using fluorescence fingerprinting and LC-OCD analyses
JF  - Water Science and Technology: Water Supply
Y1  - 2008
VL  - 8
IS  - 4
SP  - 459
EP  - 465
ER  - 
TY  - GEN
A1  - Peiris, B. R. H.
A1  - Hallé, C.
A1  - Haberkamp, J.
A1  - Legge, R. L.
A1  - Peldszus, S.
A1  - Moresoli, C.
A1  - Budman, H.
A1  - Amy, G.
A1  - Jekel, M.
A1  - Huck, P. M.
T1  - Assessing nanofiltration fouling in drinking water treatment using fluorescence fingerprinting and LC-OCD analyses. 5th IWA Leading-Edge Conference, Zürich (CH), 01.-04.06.2008
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Hallé, C.
A1  - Huck, P. M.
A1  - Peldszus, S.
A1  - Haberkamp, J.
A1  - Jekel, M.
T1  - Assessing the performance of biological filtration as pretreatment to low pressure membranes for drinking water
JF  - Environmental Science and Technology
Y1  - 2009
VL  - 43
IS  - 19
SP  - 3878
EP  - 3884
ER  - 
TY  - CHAP
A1  - Leutnant, Dominik
A1  - Kleckers, Jonas
A1  - Haberkamp, Jens
A1  - Uhl, Mathias
T1  - Assessing the Performance of Decentralised Stormwater Management Measures by means of Continuous Turbidity Measurement
T2  - Novatech 2019 - 10th international conference on Urban Water – Strategies and solutions for sustainable management
N2  - 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 %.
Y1  - 2019
UR  - http://www.novatech.graie.org
SP  - 130
EP  - 133
ER  - 
TY  - JOUR
A1  - Ueberschaar, M.
A1  - Geiping, J.
A1  - Zamzow, M.
A1  - Flamme, S.
A1  - Rotter, V.
T1  - Assessment of element-specific recycling in WEEE pre-processing
JF  - Resources, Conservation & Recycling
Y1  - 2017
SN  - 0921-3449
IS  - 124
SP  - 25
EP  - 41
ER  - 
TY  - GEN
A1  - Ernst, M.
A1  - Haberkamp, J.
A1  - Schrotter, J.-C.
A1  - Jekel, M.
T1  - Batch and continuous heterogeneous catalytic ozonation of refractory industrial wastewater. IWA 2nd Leading-Edge Technology Conference, Prag (CZ), 01.-04.06.2004
Y1  - 2004
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Albayrak, I.
A1  - Boes, R.M.
T1  - Bed-load particle motion in supercritical open channel flows
T2  - Proc. 36th IAHR World Congress, Delft - The Hague, the Netherlands
N2  - 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.
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151559
PB  - IAHR
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Albayrak, I.
A1  - Boes, R.M.
T1  - Bedload particle velocity in supercritical open channel flows
T2  - Proc. 7th River Flow, Int. Conference on Fluvial Hydraulics (Schleiss et al. eds.)
N2  - 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.
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151579
SN  - 978-1-138-02674-2
SP  - 923
EP  - 931
PB  - Taylor and Francis
ER  - 
TY  - CHAP
A1  - Müller-Hagemann, M.
A1  - Auel, C.
A1  - Albaryak, I.
A1  - Boes, R.M.
T1  - Bedload transport and hydro-abrasive erosion at steep bedrock rivers and hydraulic structures
T2  - Riverflow, Lyon, France
Y1  - 2018
ER  - 
TY  - GEN
A1  - Hallé, C.
A1  - Peldszus, S.
A1  - McPhail, B.
A1  - Haberkamp, J.
A1  - Huck, P. M.
T1  - 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
Y1  - 2008
ER  - 
TY  - GEN
A1  - Abdurahman, M. A.
A1  - Mohn, R.
A1  - Coldewey, W. G.
A1  - Awulachew, S. B.
A1  - Werner, J.
A1  - Kruse, B.
T1  - 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
Y1  - 2008
ER  - 
TY  - CHAP
A1  - Paulsen, Svea
A1  - Richter, Lea
A1  - Haberkamp, Jens
A1  - Robecke, Ulrich
A1  - Grömping, Markus
T1  - Comparative life cycle analysis of nitrogen recovery from sludge dewatering process water using membrane contactors and the Haber-Bosch process
T2  - 14. Aachener Tagung Wassertechnologie 2021
Y1  - 2021
ER  - 
TY  - CHAP
A1  - Vosswinkel, N.
A1  - Schnieders, A.
A1  - Maus, C.
A1  - Ebbert, S.
A1  - Mohn, R.
A1  - Uhl, M.
T1  - Comparison of Flow and Sedimentation Pattern for three Designs of Storm Water Tanks by Numerical Modelling (CFD)
T2  - 9th International Conference on Urban Drainage Modelling
Y1  - 2012
CY  - Belgrade, Serbia
ER  - 
TY  - GEN
A1  - Vosswinkel, N.
A1  - Ebbert, S.
A1  - Schnieders, A.
A1  - Maus, C.
A1  - Mohn, R.
A1  - Uhl, M.
T1  - 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
Y1  - 2012
ER  - 
TY  - JOUR
A1  - Uhl, M.
A1  - Ruß, H.-J.
T1  - Comparison of pollutant load calculation methods based on measured data - state of the investigation
JF  - Water Science and Technology
Y1  - 1990
VL  - 22
IS  - 10/11
SP  - 95
EP  - 102
ER  - 
TY  - JOUR
A1  - Haberkamp, J.
A1  - Ernst, M.
A1  - Böckelmann, U.
A1  - Szewzyk, U.
A1  - Jekel, M.
T1  - Complexity of ultrafiltration membrane fouling caused by macromolecular dissolved organic compounds in secondary effluents
JF  - Water Research
Y1  - 2008
VL  - 42
IS  - 2
SP  - 3153
EP  - 3161
ER  - 
TY  - JOUR
A1  - Uhl, M.
A1  - Dittmer, U.
T1  - Constructed Wetlands for CSO Treatment - An Overview of Practice and Research in Germany
JF  - Water Science and Technology
Y1  - 2005
VL  - 51
IS  - 9
SP  - 23
EP  - 30
ER  - 
TY  - CHAP
A1  - Uhl, M.
A1  - Dittmer, U.
T1  - Constructed Wetlands for CSO Treatment - An Overview of Practice and Research in Germany
T2  - Keynote Paper in Proceedings of the 9th International Conference on Wetland Systems for Water Pollution Control, Avignon
Y1  - 2012
SP  - 21
EP  - 28
ER  - 
TY  - CHAP
A1  - Flamme, S.
A1  - Rohde, C.
T1  - Construction suitable for recycling
T2  - Karlsruhe Institute of Technology (KIT) und ZEBAU, Hamburg:  SBE 16 Hamburg, International Conference on Sustainable Built Environment. Strategies-Stakeholders-Success factors
Y1  - 2016
SN  - 978-3-00-052213-0
U6  - http://dx.doi.org/10.5445/IR/1000051699
SP  - 256
EP  - 265
CY  - Hamburg
ER  - 
TY  - CHAP
A1  - Haberkamp, Jens
A1  - Tielesch, Carlos
A1  - Roß, Maximilian
A1  - Eschrich, Robert
A1  - Sandyk, Eduard
A1  - Dittmann, Daniel
A1  - Fischer, Andreas
A1  - Werner, Maximilian
A1  - Ruhl, Aki Sebastian
T1  - Decentralized Wastewater Treatment with a Small-scale Membrane Bioreactor for Agricultural Water Reuse
T2  - 13th IWA International Conference on Water Reclamation and Reuse (Chennai, India)
Y1  - 2023
ER  - 
TY  - GEN
A1  - Deletic, A.
A1  - Dotto, C. B. S.
A1  - McCarthy, D. T.
A1  - Kleidorfer, M.
A1  - Freni, G.
A1  - Mannina, G.
A1  - Uhl, M.
A1  - Fletcher, T. D.
A1  - Rauch, W.
A1  - Bertrand-Krajewski, J. L.
A1  - Tait, S.
T1  - 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
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Auel, C.
A1  - Boes, R.
A1  - Ziegler, T.
A1  - Oertli, C.
T1  - Design and construction of the sediment bypass tunnel at Solis
JF  - Int. Journal on Hydropower and Dams
Y1  - 2011
SP  - 62
EP  - 66
ER  - 
TY  - CHAP
A1  - Koshiba, T.
A1  - Sumi, T.
A1  - Tsutsumi, D.
A1  - Kantoush, S.A.
A1  - Auel, C.
T1  - Development of a bedload transport meas-uring system in sediment bypass tunnels
T2  - 84th Annual Meeting of ICOLD, Johannesburg, South Africa 4-49−4-58
N2  - 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.
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151506
SN  - 978-0-620-71042-8
PB  - ICOLD
ER  - 
TY  - CHAP
A1  - Henrichs, M.
A1  - Langner, J.
A1  - Uhl, M.
T1  - Development of a simplified Urban Water balance Model
T2  - Maere, T., Tik, S., Duchensne, S. und Vanrolleghem, P. (eds.): Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Québec, Canada 20-23 September 2015, Vol I
Y1  - 2015
SP  - 17
EP  - 20
ER  - 
TY  - JOUR
A1  - Henrichs, M.
A1  - Langner, J.
A1  - Uhl, M.
T1  - Development of a simplified urban water balance model (WABILA)
JF  - Water Science & Technology
Y1  - 2016
U6  - http://dx.doi.org/10.2166/wst.2016.020
VL  - 73
IS  - 8
SP  - 1785
EP  - 1795
ER  - 
TY  - JOUR
A1  - Leutnant, Dominik
A1  - Muschalla, Dirk
A1  - Uhl, Mathias
T1  - Distribution-Based Calibration of a Stormwater Quality Model
JF  - Water
N2  - 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.
Y1  - 2018
UR  - https://www.mdpi.com/2073-4441/10/8/1027
U6  - http://dx.doi.org/10.3390/w10081027
VL  - 2018
SP  - 1027
EP  - 10
ER  - 
TY  - BOOK
A1  - Haberkamp, Jens
A1  - Cornel, Peter
A1  - Drewes, Jörg E.
A1  - Firmenich, Edgar
A1  - Fuhrmann, Tim
A1  - Gramel, Stefan
A1  - Hartmann, Andreas
A1  - Jendrischewski, Wolfgang
A1  - Karl, Volker
A1  - Krause, Steffen
A1  - Lübken, Manfred
A1  - Obermann, Ingmar
A1  - Schmidtlein, Florian
A1  - Sinn, Jochen
A1  - Ziegler, Dörte
T1  - DWA Topics: Non-Potable Water Reuse - Development, Technologies and International Framework for Agricultural, Urban and Industrial Uses
Y1  - 2019
SN  - 978-3-88721-834-8
PB  - Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall e.V.
CY  - Hennef
ER  - 
TY  - JOUR
A1  - Auel, C.
A1  - Kobayashi, S.
A1  - Takemon, Y.
A1  - Sumi, T.
T1  - Effects of sediment bypass tunnels on grain size distribu-tion and benthic habitats in regulated rivers
JF  - International Journal of River Basin Management
N2  - 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.
Y1  - 2017
U6  - http://dx.doi.org/10.1080/15715124.2017.1360320
SP  - 433
EP  - 444
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Kobayashi, S.
A1  - Sumi, T.
A1  - Takemon, Y.
T1  - Effects of sediment bypass tunnels on sediment grain size distribution and benthic habitats
T2  - River Sedimentation: Proc. 13th Int. Symposium on River Sedimentation
Y1  - 2016
SP  - 825
EP  - 832
PB  - CRC Press
CY  - Stuttgart, Germany
ER  - 
TY  - CHAP
A1  - Kobayashi, S.
A1  - Auel, C.
A1  - Sumi, T.
A1  - Takemon, Y.
T1  - Effects of sediment supply by bypass tunnels on bed to-pography, grain size, and invertebrate habitat
T2  - Proc. 20th IAHR APD Congress, Colombo, Sri Lanka, 5B008
N2  - 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.
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151473
PB  - IAHR
ER  - 
TY  - JOUR
A1  - LOHSE, M.
A1  - GALLENKEMPER, B.
A1  - BECKER, G.
A1  - BÖNING, T.
A1  - HAMS, S.
T1  - Effects of the Anaerobic Bio-Waste Treatment Processes on the Quality of the Digestion Residues and the Wastewater, Czestochowa
JF  - Polish Academy of sciences, Committee on environment engineering: Engineering and Protection of Environment
Y1  - 2003
VL  - 6
SP  - 275
EP  - 287
ER  - 
TY  - GEN
A1  - Uhl, M.
A1  - Grobe, S.
A1  - Janiczek, M.
A1  - Merkel, W.
T1  - Enhanced Treatment of CSO with Vertical Flow Sand Filters. Proceedings of the 10th International Conference on Urban Drainage (ICUD), Copenhagen, 22.-26.08.2005
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Uhl, M.
A1  - Gitzel, R.
A1  - Ristenpart, E.
T1  - Examination of sediment samplers
JF  - Water Science and Technology
Y1  - 1992
VL  - 25
IS  - 8
SP  - 63
EP  - 69
ER  - 
TY  - JOUR
A1  - LOHSE, M.
A1  - DZIOPAK, J.
T1  - Examples for the Wastewater Disposal in the New Federal States of Germany
JF  - Environment Protection Engineering (Poland)
Y1  - 1998
VL  - 24
IS  - 3-4
SP  - 53
EP  - 63
ER  - 
TY  - GEN
A1  - Haberkamp, J.
A1  - König, A.
A1  - Würtele, A.
A1  - Ernst, M.
A1  - Jekel, M.
T1  - 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
Y1  - 2007
ER  - 
TY  - GEN
A1  - Chélin, M.
A1  - Meyer, D.
A1  - Molle, P.
A1  - Fournel, J.
A1  - Woßniak, R.
A1  - Welker, A.
A1  - Schmitt, T. G.
A1  - Uhl, M.
A1  - Dittmer, U.
T1  - Factors influencing ammonium removal in vertical flow constructed wetland for CSO treatment: a German case study, 8th Novatech 2013, June 23th -27th 2013, Lyon
Y1  - 2013
ER  - 
TY  - JOUR
A1  - Müller-Hagemann, M.
A1  - Albayrak, I
A1  - Auel, C
A1  - Boes, RM
T1  - Field Investigation on Hydroabrasion in High-Speed Sediment-Laden Flows at Sediment Bypass Tunnels
JF  - Water 12 (2)
N2  - 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.
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151268
PB  - MDPI
CY  - Basel
ER  - 
TY  - BOOK
A1  - Auel, C.
T1  - Flow characteristics, particle motion and invert abrasion in sediment bypass tunnels
T3  - PhD thesis 22008, also published as VAW Mitteilungen 229 (R. Boes ed.)
N2  - 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.
Y1  - 2014
U6  - http://dx.doi.org/10.3929/ethz-a-010243883
PB  - ETH Zurich, Switzerland
ER  - 
TY  - GEN
A1  - Hallé, C.
A1  - Peldszus, S.
A1  - Haberkamp, J.
A1  - Jekel, M.
A1  - Huck, P. M.
T1  - Fouling control of ultrafiltration membrane processes using biofiltration pre-treatment. Water Quality Technology Conference (WQTC), Cincinnati (USA), 16.-20.11.2008
Y1  - 2008
ER  - 
TY  - GEN
A1  - Uhl, M.
A1  - Schiedt, L.
T1  - Green Roof Stormwater Retention - Monitoring Results. Proceedings of the 11th International Conference on Urban Drainage (ICUD), Edinburgh, 31.8.-5.9.2008
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Helftewes, M.
A1  - Flamme, S.
A1  - Nelles, M.
T1  - Greenhouse gas emissions of different waste treatment options for sector-specific commercial and industrial waste in Germany
JF  - waste management & research. Special issue: Solid Recovered Fuels. The official journal of the International Solid Waste Association. ISSN 0734-242X
Y1  - 2012
VL  - 30
IS  - 4
SP  - 421
EP  - 431
ER  - 
TY  - GEN
A1  - Mohn, R.
A1  - Vosswinkel, N.
A1  - Riss, H. W.
A1  - Göke, M.
T1  - 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
Y1  - 2014
ER  - 
TY  - GEN
A1  - Vosswinkel, N.
A1  - Mohn, R.
A1  - Buttschardt, T.
A1  - Meyer, E. I.
A1  - Bünning, I.
A1  - Riss, H. W.
T1  - Habitat restoration in an urban channel - the Münstersche Aa - experiences from monitoring of a pilot action; Symposium for European Freshwater Sciences (Poster); July 1-5 2013, Münster, Germany
Y1  - 2013
ER  - 
TY  - GEN
A1  - Haberkamp, J.
A1  - Ernst, M.
A1  - Schrotter, J.-C.
A1  - Jekel, M.
T1  - Heterogeneous Catalytic Ozonation of refractory industrial wastewater using systematically modified Al2O3. IWA 2nd International Young Researchers Conference, Wageningen (NL), 23.-24.04.2004
Y1  - 2004
ER  - 
TY  - GEN
A1  - Uhl, M.
A1  - Hellberg, B.
T1  - Hydrological Performance of combined Raintanks. In: Proceedings of the 14th IWA/IAHR International Conference on Urban Drainage, Prague, Czech Republic, pp. 1108-1111
Y1  - 2017
ER  - 
TY  - GEN
A1  - Ernst, M.
A1  - Haberkamp, J.
A1  - Bewersdorff, I.
A1  - Jekel, M.
T1  - Impact and properties of Boron doped diamond electrodes applied to water and wastewater treatment. DECHEMA Industrial Water, Frankfurt am Main, 06.-08.02.2006
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Haberkamp, J.
A1  - Ruhl, A. S.
A1  - Ernst, M.
A1  - Jekel, M.
T1  - Impact of coagulation and adsorption on DOC fractions of secondary effluent and resulting fouling behaviour in ultrafiltration
JF  - Water Research
Y1  - 2007
VL  - 41
IS  - 17
SP  - 3794
EP  - 3802
ER  - 
TY  - JOUR
A1  - Haberkamp, J.
A1  - Ernst, M.
A1  - Paar, H.
A1  - Pallischeck, D.
A1  - Amy, G.
A1  - Jekel, M.
T1  - Impact of organic fractions identified by SEC and fluorescence EEM on the hydraulic reversibility of ultrafiltration membrane fouling by secondary effluents
JF  - Desalination and Water Treatment
Y1  - 2011
VL  - 29
IS  - 1-3
SP  - 73
EP  - 86
ER  - 
TY  - CHAP
A1  - Koshiba, T.
A1  - Auel, C.
A1  - Tsutsumi, D.
A1  - Kantoush, S.A.
A1  - Sumi, T.
T1  - Improvement of a bedload transport rate measuring systems in sediment bypass tunnels
T2  - River Sedimentation: Proc. 13th Int. Symposium on River Sedimentation
N2  - 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.
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151462
SN  - 978-1-138-02945-3
SP  - 1038
EP  - 1045
PB  - CRC Press
CY  - Stuttgart, Germany
ER  - 
TY  - JOUR
A1  - Basler, Felix
A1  - Mähner, Dietmar
A1  - Fischer, Oliver
A1  - Hilbig, Harald
T1  - Influence of early-age vibration on concrete strength
JF  - Structural Concrete
N2  - 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).
KW  - compressive strength
KW  - early-age concrete
KW  - green concrete
KW  - vibrations
KW  - young concrete
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-172052
SN  - 1464-4177
SP  - 6505
EP  - 6519
ER  - 
TY  - CHAP
A1  - Schleifenbaum, R.
A1  - Henrichs, M.
A1  - Uhl, M.
T1  - Influence of model structure, input data and calibration on CSO modelling
T2  - Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Québec, Canada 20-23 September 2015, Vol I
Y1  - 2015
SP  - 217
EP  - 222
ER  - 
TY  - GEN
A1  - Mohn, R.
A1  - Voßwinkel, N.
A1  - Schnieders, A.
A1  - Henrichs, M.
A1  - Uhl, M.
T1  - Influence of Pipe-Junctions on Downstream Measuring Sections, NOVATECH 2010, Lyon (F)
Y1  - 2010
ER  - 
TY  - GEN
A1  - Mohn, R.
A1  - Vosswinkel, N.
A1  - Schnieders, A.
A1  - Henrichs, M.
A1  - Uhl, M.
T1  - Influence of Pipe-Junctions on Downstream Measuring Sections, predicted by a numerical model. Conference paper; Novatech 2010, June 28th-30th 2010, Lyon
Y1  - 2010
ER  - 
TY  - CHAP
A1  - Vosswinkel, N.
A1  - Lipeme Kouyi, G.
A1  - Ebbert, S.
A1  - Schnieders, A.
A1  - Maus, C.
A1  - Laïly, A.-G.
A1  - Mohn, R.
A1  - Uhl, M.
T1  - Influence of Transient Behavior on the Settling of Solids in Storm Water Tanks
T2  - 9th International Conference on Urban Drainage Modelling
Y1  - 2012
CY  - Belgrade, Serbia
ER  - 
TY  - GEN
A1  - Vosswinkel, N.
A1  - Kouyi, G. L.
A1  - Ebbert, S.
A1  - Schnieders, A.
A1  - Maus, C.
A1  - Laïly, A.- G.
A1  - Mohn, R.
A1  - Uhl, M.
T1  - 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.
Y1  - 2012
ER  - 
TY  - GEN
A1  - Henrichs, M.
A1  - Voßwinkel, N.
A1  - Uhl, M.
T1  - 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.
Y1  - 2008
ER  - 
TY  - GEN
A1  - Uhl, M.
T1  - 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
Y1  - 2010
ER  - 
TY  - CHAP
A1  - Deister, L.
A1  - Henrichs, M.
A1  - Brenne, F.
A1  - Langner, J.
A1  - Uhl, M.
A1  - Stokman, A.
T1  - Interlinking urban development and urban drainage? - An action manual
T2  - Gesellschaft zur Förderung des Instituts für Siedlungswasserwirtschaft an der Technischen Universität Braunschweig e. V. [Hrsg.] Re-Water Symposium. Band 87. Konferenz am 02.-03.11.2015, Braunschweig
Y1  - 2015
SN  - ISSN 0934-9731
SP  - 12
EP  - 21
CY  - Braunschweig
ET  - 1
ER  - 
TY  - JOUR
A1  - Makdissy, G.
A1  - Huck, P. M.
A1  - Reid, M. M.
A1  - Leppard, G. G.
A1  - Peldszus, S.
A1  - Haberkamp, J.
A1  - Jekel, M.
T1  - Investigating the fouling layer of polyamide nanofiltration membranes treating two different surface waters: internal heterogeneity yet overall similarity
JF  - Journal of Water Supply: Research and Technology - Aqua
Y1  - 2010
VL  - 59
IS  - 2-3
SP  - 164
EP  - 178
ER  - 
TY  - CHAP
A1  - Falter, Bernhard
T1  - LINING STABILITY: AN ANALYSIS OF DAMAGED SEWERS
T2  - North American Society for Trenchless Technologies (NASTT), NO-DIG 2004, New Orleans, Louisiana, March 22-24, 2004
N2  - 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.
N2  - Bei der Beurteilung von Abwasserkanälen und -leitungen gelten allgemein anerkannte Kriterien wie Dichtheit, Standsicherheit, hydraulische Leistungsfähigkeit und Wirtschaftlichkeit. Zur Beurteilung der Standsicherheit sind jedoch häufig Unsicherheiten anzutreffen. In diesem Zusammenhang stellt das Merkblatt M 127-2 der ATV eine praxisorientierte Weiterentwicklung des Regelwerks zur Standsicherheit von erdgebetteten Rohrleitungen dar, das bei Dimensionierungen für grabenlose Sanierungsverfahren hinzugezogen wird. Dennoch sind weiterhin Annahmen zum Rohr-Bodensystem zu treffen, die wiederum häufig auf individuellen Einschätzungen und Erfahrungen des Planers beruhen. Hierzu wurden in den Jahren 1999 bis Anfang 2002 von den Hochschulen Bremen und Münster sowie der hanseWasser Bremen GmbH umfangreiche Versuche und theoretische Untersuchungen durchgeführt, um die Tragfähigkeit insbesondere von geschädigten Alt-rohren im Boden sicherer zu beurteilen. Die Arbeiten wurden vom Bundesministerium für Bildung und Forschung (BMB+F) unter dem Kurztitel ASSUR gefördert. Der Vortrag gibt einen Überblick über die wesentlichen Inhalte des Vorhabens, Näheres kann dem Abschlussbericht zu ASSUR entnommen werden.
KW  - Liner
KW  - Altrohrschäden
KW  - Altrohrzustand III
KW  - Mauerwerkssammler
KW  - gerissene Rohre
KW  - Druckzone
KW  - Bodenspannungen
KW  - Belastungsversuche
KW  - Belastungsfahrzeug
KW  - Liner
KW  - damaged pipes
KW  - Host Pipe Stage III
KW  - masonry sewer
KW  - broken pipe
KW  - pressure zone
KW  - soil stresses
KW  - loading test
KW  - load vehicle
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-190
PB  - North American Society for Trenchless Technology
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Sanjou, M.
A1  - Okamoto, T.
A1  - Kobayashi, S.
A1  - Sumi, T.
T1  - Mean flow and turbulence variation due to invert abrasion
T2  - Proc. 2nd Int. Workshop on Sediment Bypass Tunnels, FP15, Kyoto, Japan
N2  - 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.
Y1  - 2017
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151721
PB  - Kyoto University
ER  - 
TY  - GEN
A1  - Scherer, I.
A1  - Henrichs, M.
A1  - Uhl, M.
T1  - 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
Y1  - 2017
ER  - 
TY  - GEN
A1  - Maus, C.
A1  - Holtrup, F.
A1  - Uhl, M.
T1  - Measurement methods for in situ particle settling velocity. Proceedings of the 11th International Conference on Urban Drainage (ICUD), Edinburgh, 31.8.-5.9.2008
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Struck, Franziska
A1  - Flamme, Sabine
T1  - Measuring recyclability - a key factor for resource efficiency evaluation
JF  - Detritus Journal
N2  - 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.
KW  - Recyclability
KW  - Measurement of recyclability
KW  - Circular economy
KW  - Reuse
KW  - Circularity
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-160058
UR  - https://digital.detritusjournal.com/articles/in-press/measuring-recyclability--a-key-factor-for-resource-efficieny-evaluation/3512
SN  - 2611-4135
SP  - 1
EP  - 14
PB  - Cisa Publisher
CY  - Padova
ER  - 
TY  - GEN
A1  - Haberkamp, J.
T1  - Membrane filtration in wastewater treatment and reuse. Infrastructure Middle East 2011 - Conferences and Exhibition, Manama (BH), 17.-19.01.2011
Y1  - 2011
ER  - 
TY  - CHAP
A1  - Henrichs, Malte
A1  - Steinbrich, Andreas
A1  - Leistert, Hannes
A1  - Scherer, Isabell
A1  - Schütz, Tobias
A1  - Weiler, Markus
A1  - Uhl, Mathias
ED  - Manina, Giorgio
T1  - Model Based Estimation of a Natural Water Balance as Reference for Planning in Urban Areas
T2  - New Trends in Urban Drainage Modelling. Proceedings of the 11th International Conference on Urban Drainage Modelling
N2  - 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.
KW  - Water sensitive urban design
KW  - water balance modelling
KW  - RoGeR
Y1  - 2019
SN  - 978-3-319-99866-4
SN  - 978-3-030-07639-9
SP  - 953
EP  - 957
PB  - Springer International Publishing
ER  - 
TY  - CHAP
A1  - Leutnant, D.
A1  - Hofer, T.
A1  - Henrichs, M.
A1  - Muschalla, D.
A1  - Uhl, M.
T1  - Model-based time drift correction of asynchronous measurement data in urban drainage.
T2  - In: T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Québec, Canada 20-23 September 2015
Y1  - 2015
SP  - 131
EP  - 134
ER  - 
TY  - GEN
A1  - Yan, H.
A1  - Vosswinkel, H.
A1  - Ebbert, N.
A1  - Lipeme, S.
A1  - Kouyi, G.
A1  - Mohn, R.
A1  - Uhl, M.
A1  - Bertrand-Krajewski, J.-L.
T1  - Modeling of sediment transport, settling and erosion under transient condition in stormwater detention basin, 8th Novatech 2013, June 23th -27th 2013, Lyon
Y1  - 2013
ER  - 
TY  - JOUR
A1  - Henrichs, M.
A1  - Welker, A.
A1  - Uhl, M.
T1  - Modelling of biofilters for ammonium reduction in combined sewer overflow
JF  - Water Science and Technology
Y1  - 2009
VL  - 60
IS  - 3
SP  - 825
EP  - 831
ER  - 
TY  - GEN
A1  - Henrichs, M.
A1  - Perrefort, T.
A1  - Welker, A.
A1  - Uhl, M.
T1  - 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
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Henrichs, M.
A1  - Langergraber, G.
A1  - Uhl, M.
T1  - Modelling of organic matter degradation in constructed wetlands for treatment of combined sewer overflow. Science of the Total Environment
JF  - Science of the Total Environment
Y1  - 2007
VL  - 380
IS  - 1-3
SP  - 196
EP  - 209
ER  - 
TY  - CHAP
A1  - Falter, Bernhard
T1  - New developments in liner design due to ATV-M 127-2
T2  - North-American Society for Trenchless Technology 2008 No-Dig Conference & Exhibition, Dallas, Texas, April 27 - Mai 2, 2008, Paper C-1-03-1
N2  - 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.
N2  - Das im Jahr 2000 veröffentlichte deutsche Regelwerk ATV-M 127-2 zur Dimensionierung von Linern für Abwasserkanäle erweist sich als gute Richtlinie zur Ermittlung der optimalen Wanddicken von Linern aus beliebigem Material, wie z. B. faserverstärkte Kunststoffe oder Manschetten aus nicht rostendem Stahl. Viele Sanierungsprojekte in verschiedenen europäischen Ländern wurden mit Hilfe dieser Richtlinie erfolgreich durchgeführt. Die Richtlinie differenziert zwischen drei Altrohrzuständen: Der erste Zustand gilt für ein Abwasserrohr ohne Risse, der zweite Zustand für Rohre mit Längsrissen, aber einem stabilen Rohr-Boden-System und der dritte Zustand für das gerissene Rohr mit größeren Verformungen und hohem Risiko des Versagens in naher Zukunft. Abwasserrohre im Zustand II, die in der Nähe einer Verkehrsfläche liegen, müssen genauso behandelt werden wie Abwasserrohre im Zustand III. Gemäß der Richtlinie sind Spannungs-, Verformungs-, und Stabilitätsnachweise erforderlich. Für viele praktische Fälle wurden Diagramme mit Spannungsfaktoren und Abminderungsbeiwerten entwickelt, die eine Dimensionierung ohne Computer ermöglichen. Es wurde eine Vielzahl von theoretischen und experimentellen Arbeiten veröffentlicht, die sich hauptsächlich auf kreisförmige Liner konzentrieren. Eine Auswertung von Berechnungsverfahren ergab, dass eine relativ gute Übereinstimmung der Ergebnisse von Experten aus verschiedenen Ländern bezüglich der erforderlichen Wanddicken vorliegt, die Ingenieure jedoch mitunter ganz unterschiedliche Annahmen für die Rohrverformungen treffen. Es wird über Fortschritte in der Linerdimensionierung seit der ersten Ausgabe des Regelwerks im Jahr 2000 berichtet. In der zweiten Auflage werden für nicht kreisförmige Querschnitte zusätzliche Beiwerte eingeführt, z. B. für Ei- und Rechteckprofile. Wichtige zukünftige Anwendungsbereiche sind z. B. Eisenbahnkreuzungen. Eine internationale Diskussion ist nützlich, um sichere und wirtschaftliche Konstruktionen zu finden.
T2  - Neue Entwicklungen in der Linerberechnung nach ATV-M 127-2
Y1  - 2008
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-687
PB  - North-American Society for Trenchless Technology
ER  - 
TY  - CHAP
A1  - Richter, Lea
A1  - Wichern, Marc
A1  - Grömping, Markus
A1  - Robecke, Ulrich
A1  - Haberkamp, Jens
T1  - Nitrogen recovery from process water of digested sludge dewatering with membrane contactors
T2  - 3rd IWA Resource Recovery Conference 2019, Venice
Y1  - 2019
SN  - 9788894470000
ER  - 
TY  - JOUR
A1  - Haberkamp, Jens
A1  - Gramel, Stefan
A1  - Fuhrmann, Tim
T1  - Opportunities and Challenges for Non-Potable Water Reuse
JF  - KA International Special Edition
N2  - 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”.
KW  - wastewater
KW  - water reuse
KW  - wastewater treatment
KW  - irrigation
Y1  - 2020
VL  - 2020/21
SP  - 22
EP  - 29
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Hagemann, M.
A1  - Albayrak, I.
A1  - Boes, R.M.
T1  - Optimizing the sustainability of sediment bypass tunnels to counter reservoir sedimentation
T2  - Proc. 25th ICOLD Congress, Q99 R31, Stavanger, Norway
N2  - 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.
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151518
SP  - 431
EP  - 452
PB  - ICOLD
ER  - 
TY  - JOUR
A1  - Ristenpart, E.
A1  - Ashley, R. M.
A1  - Uhl, M.
T1  - Organic near-bed fluid and particulate transport in combined sewers
JF  - Water Science Technology
Y1  - 1994
VL  - 31
IS  - 7
SP  - 61
EP  - 68
ER  - 
TY  - CHAP
A1  - Leutnant, D.
A1  - Henrichs, M.
A1  - Muschalla, D.
A1  - Uhl, M.
T1  - OSCAR - An online supervisory control and urban drainage data acquisition system with R
T2  - T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Québec, Canada 20-23 September 2015, Vol III
Y1  - 2015
SP  - 135
EP  - 138
ER  - 
TY  - CHAP
A1  - Schleifenbaum, R.
A1  - Henrichs, M.
A1  - Leutnant, D.
A1  - Fuchs, L.
T1  - Performance Benchmark for Urban Drainage Model Calibration.
T2  - T. Maere, S. Tik, S. Duchensne, and P. Vanrolleghem (eds.), Proceedings of the 10th International Conference on Urban Drainage Modelling Mont-Sainte-Anne, Québec, Canada 20-23 September 2015, Vol. II
Y1  - 2015
SP  - 1
EP  - 4
ER  - 
TY  - GEN
A1  - Leutnant, D.
A1  - Muschalla, D.
A1  - Uhl, M.
T1  - 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
Y1  - 2017
ER  - 
TY  - CHAP
A1  - Auel, C.
A1  - Kantoush, S.A.
A1  - Sumi, T.
T1  - Positive effects of reservoir sedimentation management on reservoir life: Examples from Japan
T2  - 84th Annual Meeting of ICOLD, Johannesburg, South Africa 4-11−4-20.
N2  - The effectiveness of different strategies against reservoir sedimentation is demonstrated herein using data sets of Asahi, Nunobiki and Dashidaira reservoirs in Japan. The applied strategies encompass
sediment routing with a bypass tunnel, drawdown flushing during floods and sabo dam construction in the catchment. It is shown that bypassing and flushing are very efficient strategies enlarging reservoir life by 3 to 21 times up to many hundreds of years. Furthermore, it is revealed that also efforts in the catchment, e.g. sabo dam construction, is effective enlarging reservoir life by 2.4 times.
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-151498
SN  - 978-0-620-71042-8
PB  - ICOLD
ER  - 
TY  - JOUR
A1  - Dittmann, Daniel
A1  - Seelig, Alina H.
A1  - Thalmann, Mogens
A1  - Wilkes, Theresa
A1  - Junghans, Veikko
A1  - Zahn, Daniel
A1  - Klitzke, Sondra
A1  - Peters, Andre
A1  - Haberkamp, Jens
A1  - Reemtsma, Thorsten
A1  - Ruhl, Aki S.
T1  - Potential and risks of water reuse in Brandenburg (Germany) – an interdisciplinary case study
JF  - Water Reuse 14
N2  - For Brandenburg, a region in Germany with increasing water shortage and drought events, water reuse can counteract competition scenarios between drinking water supply, agricultural irrigation, and industrial use. Centralized and decentralized sources for reclaimed water are found to potentially substitute 245 or 28% of irrigation water, respectively, in agriculture production in Brandenburg. For such a reuse scenario, the
fate of organic micropollutants is examined for diatrizoate (DZA) and carbamazepine (CBZ). Retention in local sandy soil and transfer into roots and leaves of arugula are analyzed in lysimeter studies and greenhouse pot experiments. Vertical transport was found for DZA and accumulation in or on arugula roots with a root concentration factor of 1,925+34% but a low bioconcentration factor due to intrinsic molecule properties. CBZ was not found to be mobile in the sandy soil but accumulates in arugula roots and leaves by factors of 70+7% and 155+12%, respectively. Further research on potential plant uptake and groundwater enrichment for more substances is highly recommended as well as tertiary wastewater treatment prior to water reuse.
Y1  - 2024
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-179497
SN  - 2709-6092
SP  - 1
EP  - 15
ER  - 
TY  - GEN
A1  - Ernst, M.
A1  - Haberkamp, J.
A1  - Skorupski, R.
A1  - Jekel, M
T1  - Potential of the heterogeneous catalytic ozonation in enhancing ozone decay and generation of OH radicals for advanced wastewater treatment. 17th IOA World Congress & Exhibition Conference, Straßburg (F), 22.-25.08.2005
Y1  - 2005
ER  - 
TY  - CHAP
A1  - Richter, Lea
A1  - Wichern, Marc
A1  - Grömping, Markus
A1  - Robecke, Ulrich
A1  - Haberkamp, Jens
T1  - Process water treatment by membrane contactors for nitrogen recovery from municipal wastewater treatment plants
T2  - IWA Innovation Conference on Sustainable Wastewater Treatment and Resource Recovery 2019, Shanghai
Y1  - 2019
ER  - 
TY  - GEN
A1  - Flamme, S.
A1  - Geiping, J.
T1  - Process-integrated quality assurance of Solid Recovered Fuels. Ecra-Seminar "Alternative Fuels: Quality and Environmental Control. Lafarge Zementwerk - Retznei, Österreich, 09.04.2014
Y1  - 2014
ER  -