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Wastewater generation model to predict impacts of urine separation on wastewater treatment plants
(2024)
Wastewater treatment plants (WWTPs) are under increasing pressure to enhance resource efficiency and reduce emissions into water bodies. The separation of urine within the catchment area may be an alternative to mitigate the need for costly expansions of central WWTPs. While previous investigations assumed a spatially uniform implementation of urine separation across the catchment area, the present study focuses on an adapted stochastic wastewater generation model, which allows the simulation of various wastewater streams (e.g., urine) on a household level. This enables the non-uniform separation of urine across a catchment area. The model is part of a holistic modelling framework to determine the influence of targeted urine separation in catchments on the operation and emissions of central WWTPs, which will be briefly introduced. The wastewater generation model is validated through an extensive sampling and measurement series.
Results based on observed and simulated wastewater quantity and quality for a catchment area of 366 residents for two dry weather days indicate the suitability of the model for wastewater generation and transport modelling. Based on this, four scenarios for urine separation were defined. The results indicate a potential influence of spatial distribution on the peaks of total nitrogen and total phosphorus.
Potential and risks of water reuse in Brandenburg (Germany) – an interdisciplinary case study
(2024)
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.
Die Rückführung von Prozesswasser aus der Faulschlammentwässerung kommunaler Kläranlagen führt insbesondere durch dessen hohe Ammoniumkonzentration zu einer stofflichen Rückbelastung der Abwasserbehandlung. Zur separaten Prozesswasserbehandlung wurde auf der Hauptkläranlage Münster eine großtechnische Membrankontaktorenanlage mit Vorbehandlung installiert. Es wurden Stickstoffentfernungsleistungen von durchschnittlich ca. 74 % erreicht. Betriebserfahrungen zeigen, dass neben pH-Wert, Temperatur und Volumenstrom insbesondere die Feststoffabscheidung durch die Vorbehandlung des Prozesswassers einen maßgeblichen Einfluss auf den stabilen Betrieb der Membrankontaktorenanlage hat. Mit den Membrankontaktoren konnte aus dem Prozesswasser Stickstoff als Ammoniumsulfatlösung mit einem mittleren Stickstoffanteil von ca. 2,7 % N zurückgewonnen werden.
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).
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.
Verockerung wasserbaulicher Filteranlagen: Stand der Wissenschaft und notwendige Untersuchungen
(2022)
In den letzten Jahrzehnten kam es in Einzelfällen zu schweren Schäden an wasserbaulichen geotextilen Filteranlagen infolge der Verstopfung durch ausgeflockte ockerhaltige Produkte. Durch eine starke Verminderung der Durchlässigkeit der Geokunststoffe in Kombination mit einem hohen hydrostatischen Druck wurden unter anderem die Deckschichten verschiedener Deckwerke in den tidebeeinflussten Wasserstraßen Ems und Weser angehoben und beschädigt. Bisher wurden die Milieubedingungen, d.h. Grundwasser- und Oberflächenwasserbeschaffenheit sowie Aquifer- und Deckwerksmaterial, unter denen die Ockerbildung in geotextilen und mineralischen Filteranlagen auftritt, noch nicht systematisch untersucht. Im Rahmen des vorliegenden Beitrags werden im ersten Schritt aus theoretischen Untersuchungen und Datenanalysen von Grundwasser- und Oberflächenwasseruntersuchungen Kriterien zur Bewertung der Verockerungsneigung abgeleitet. Diese Kriterien bzw. DOCP (decisive ochre clogging parameters) zeigen in den Ästuaren Ems, Weser und Elbe Beträge an, die Verockerungserscheinungen begünstigen bzw. ermöglichen. Auf Basis dieser Untersuchungen werden im zweiten Schritt Randbedingungen für zukünftige systematische in-situ Untersuchungen an wasserbaulichen Filteranlagen sowie im experimentellen Modell abgeleitet.
Hydroabrasion tritt im alpinen Raum hauptsächlich bei Wasserbauwerken auf, die durch hohe Fließgeschwindigkeiten und große Sedimentfrachten belastet werden. Dies sind beispielswei-se Wehrschwellen in Flüssen, Wasserfassungen von Wasserkraftwerken und vor allem Sedi-mentumleitstollen. Letztere dienen dazu sedimentreiche Hochwasserspitzen um die Talsperre herum in den Unterlauf des Flusses zu leiten. Sie verhindern so eine fortschreitende Verlan-dung des Stauraums.
Es gibt verschiedene Konzepte, dem Problem der Hydroabrasion entgegen zu wirken. Einer-seits kann der Umleitstollen hydraulisch optimiert werden, um die Einwirkung auf die Sohle zu minimieren. Auf der anderen Seite kann deren Widerstand verbessert werden. An der Ver-suchsanstalt für Wasserbau, Hydrologie und Glaziologie (VAW) der ETH Zürich werden zur Zeit zwei Forschungsarbeiten durchgeführt, die sich jeweils diesen Aspekten widmen. Dieser Beitrag befasst sich mit der hydraulischen Optimierung von Sedimentumleitstollen mit Hilfe von großskaligen Laborversuchen.
In insgesamt drei Versuchsreihen werden die Mittelwert- und Turbulenz-Fließcharakteristik von schießendem Abfluss in einer Versuchsrinne mittels eines Laser-Doppler Anemometrie-Systems (LDA) aufgenommen, die Fortbewegungsart des Sediments mittels eines High-Speed Kamera-Systems analysiert sowie die Abrasion der Stollensohle untersucht. In Abhängigkeit des Sohlgefälles, des Durchflusses, der Größe und Menge der Sedimentfracht erfolgt die Fortbewegung des Sedimentkorns hüpfend, rollend oder gleitend und verursacht unterschied-liche Abrasionserscheinungen in der Stollensohle. Die Ergebnisse der LDA Experimente zei-gen, dass, abhängig vom Verhältnis Gerinnebreite zur Abflusstiefe, Sekundärströmungen auf-treten. Diese Sekundärströmungen beeinflussen im untersuchten Froude-Zahlenbereich 2, 4 und 8 das longitudinale Strömungsprofil sowie die Verteilung der Sohlen- bzw. Reynolds-Schubspannungen und der Turbulenzintensität und somit letztlich die Fortbewegungsart des Sedimentkorns in der Wassersäule.
Mittels der drei Versuchsreihen sollen bestmögliche hydraulische Bedingungen für Sedimen-tumleitstollen gefunden werden, um die Hydroabrasion und somit die Unterhaltskosten signi-fikant zu minimieren.
An experimental investigation of supercritical uniform and gradually varied open channel flows is presented for a wide range of Froude numbers and flume width-to-flow depth aspect ratios. The instantaneous streamwise and vertical flow velocities were measured in a laboratory flume over the entire width using a two dimensional–laser Doppler anemometry (2D-LDA) system to determine turbulence intensities, and bed and Reynolds shear stresses. The mean velocity patterns show undulation across the flume, indicating the presence of counterrotating secondary current cells. These currents redistribute turbulence intensities and bed and Reynolds shear stresses across the flume. For aspect ratios ≤ 4−5, i.e., narrow open channel flow, the velocity-dip phenomenon is identified both in the streamwise velocity and the Reynolds shear stress distributions. For high aspect ratios, i.e., wide open channel flow, the strength of secondary currents diminish toward the flume center, resulting in a 2D flow farther away from the walls and no velocity-dip phenomenon. Froude number effects on the flow characteristics are less pronounced compared to the aspect ratio effects. At high Froude numbers, the results for narrow and wide open channel flows agree well with literature data. The log-law holds in the inner region across the entire flume width for all investigated Froude numbers and aspect ratios. The Reynolds shear stress distribution agrees well with the computed spanwise bed shear stress distribution. At the flume side walls, the bed shear stresses are 20–50 % higher than the mean values. These results are verified with an engineering example in which high sediment transport and corresponding deep abrasion patterns at the side walls were observed.
Particle dynamics are investigated experimentally in supercritical high-speed open channel flow over a fixed planar bed of low relative roughness height simulating flows in high-gradient non-alluvial mountain streams and hydraulic structures. Non-dimensional equations were developed for transport mode, particle velocity, hop length and hop height accounting for a wide range of literature data encompassing sub- and supercritical flow conditions as well as planar and alluvial bed configurations. Particles were dominantly transported in saltation and particle trajectories on planar beds were rather flat and long compared with alluvial bed data due to (1) increased lift forces by spinning motion, (2) strongly downward directed secondary currents, and (3) a planar flume bed where variation in particle reflection and damping effects were minor. The analysis of particle saltation trajectories revealed that the rising and falling limbs were almost symmetrical contradicting alluvial bed data. Furthermore, no or negligible effect of particle size and shape on particle dynamics were found. Implications of experimental findings for mechanistic saltation-abrasion models are briefly discussed.
Sediment transport in high-speed flows over a fixed bed. 2: Particle impacts and abrasion prediction
(2017)
Single bed load particle impacts were experimentally investigated in supercritical open channel flow over a fixed planar bed of low relative roughness height simulating high-gradient non-alluvial mountain streams as well as hydraulic structures. Particle impact characteristics (impact velocity, impact angle, Stokes number, restitution and dynamic friction coefficients) were determined for a wide range of hydraulic parameters and particle properties. Particle impact velocity scaled with the particle velocity, and the vertical particle impact velocity increased with excess transport stage. Particle impact and rebound angles were low and decreased with transport stage. Analysis of the particle impacts with the bed revealed almost no viscous damping effects with high normal restitution coefficients exceeding unity. The normal and resultant Stokes numbers were high and above critical thresholds for viscous damping. These results are attributed to the coherent turbulent structures near the wall region, i.e. bursting motion with ejection and sweep events responsible for turbulence generation and particle transport. The tangential restitution coefficients were slightly below unity and the dynamic friction coefficients were lower than for alluvial bed data, revealing that only a small amount of horizontal energy was transferred to the bed. The abrasion prediction model formed by Sklar and Dietrich in 2004 was revised based on the new equations on vertical impact velocity and hop length covering various bed configurations. The abrasion coefficient kv was found to be vary around kv ~ 105 for hard materials (tensile strength ft > 1 MPa), one order of magnitude lower than the value assumed so far for Sklar and Dietrich's model.
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.
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.
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.
Field Investigation on Hydroabrasion in High-Speed Sediment-Laden Flows at Sediment Bypass Tunnels
(2020)
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.
From 2023, new minimum standards for the reuse of treated wastewater will apply in the EU. Internationally, water reuse has already been a relevant issue for some time. Rising water demand worldwide, also as a result of global climate change, is increasing the scarity of freshwater resources in some areas. Reclaimed water is increasingly considered as a valuable substitute for natural water resources. Even before the new EU regulation came into force, DWA has 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 that DWA Topics issue “Non-Potable Water Reuse – Development, Technologies and International Framework Conditions for Agricultural, Urban and Industrial Uses”.
In Germany, the current sectoral urban planning often leads to inefficient use of resources, partly because municipalities lack integrated planning instruments and argumentation strength toward politics, investors, or citizens. The paper develops the ResourcePlan as (i) legal and (ii) a planning instrument to support the efficient use of resources in urban neighborhoods. The integrative, multi-methodological approach addresses the use of natural resources in the building and infrastructural sectors of (i) water (storm- and wastewater) management, (ii) construction and maintenance of buildings and infrastructure, (iii) urban energy system planning, and (iv) land-use planning. First, the development as legal instrument is carried out, providing (i) premises for integrating resource protection at all legal levels and (ii) options for implementing the ResourcePlan within German municipal structures. Second, the evaluation framework for resource efficiency of the urban neighborhoods is set up for usage as a planning instrument. The framework provides a two-stage process that runs through the phases of setting up and implementing the ResourcePlan. (Eco)system services are evaluated as well as life cycle assessment and economic aspects. As a legal instrument, the ResourcePlan integrates resource protection into municipal planning and decision-making processes. The multi-methodological evaluation framework helps to assess inter-disciplinary resource efficiency, supports the spatial identification of synergies and conflicting goals, and contributes to transparent, resource-optimized planning decisions.
Prozesswasser aus der Faulschlammentwässerung von kommunalen Kläranlagen stellt eine zusätzliche stoffliche Belastung der Anlage in Form von Stickstoff dar. Die Hauptkläranlage Münster betreibt zur Stickstoffentfernung und -rückgewinnung aus Prozesswasser eine innovative Membrankontaktorenanlage im großtechnischen Maßstab. Im Rahmen dieser Studie werden Auswirkungen auf die Leistung und den Betrieb der Membran sowie die Verwertung des produzierten Düngers untersucht. Erste Ergebnisse zeigen Stickstoffentfernungsleistungen von ca. 85 % und eine regionale Verwertbarkeit des produzierten Düngers.
Ab 2023 gelten in der EU neue Mindeststandards für die Wiederverwendung von aufbereitetem Abwasser – und damit auch in Deutschland. International ist die Wasserwiederverwendung schon länger ein relevantes Thema. Weltweites Bevölkerungswachstum und ein damit einhergehender steigender Wasserbedarf sowie die Folgen des globalen Klimawandels verringern zunehmend die Verfügbarkeit von Süßwasserressourcen. Aufbereitetes Abwasser kann ein wertvoller Ersatz für natürliche Wasserressourcen sein. Der aktuelle DWA-Themenband „Non-Potable Water Reuse – Development, Technologies and International Framework Conditions for Agricultural, Urban and Industrial Uses“ behandelt das breite Spektrum der Wasserwiederverwendung für Nutzungen, bei denen keine Trinkwasserqualität erforderlich ist. Der vorliegende Beitrag bietet einen Überblick über die im Themenband beschriebene Herangehensweise an die Wasserwiederverwendung und die damit verbundenen Herausforderungen.
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”.
Im Rahmen des Forschungsprojekts „Ressourcenplan im Quartier – R2Q“ startete im Frühjahr 2019 ein großer Forschungsverbund aus Hochschulen, wissenschaftlichen Instituten, Praxispartnern und einer Kommune, um die Verwendung der Ressourcen Wasser, Fläche, Baustoffe und Energie in Quartieren zu bilanzieren und zu bewerten, damit ihre effiziente Verwendung im Quartier mit Hilfe neuer rechtlicher Festsetzungen zukünftig gewährleistet werden kann.
Die Verdunstung als Teil des urbanen Wasserhaushalts sollte aus wasserwirtschaftlicher und energetischer Sicht im Rahmen von Planungsprozessen zielgerichtet beeinflusst werden. Lösungs-strategien können nur in einem iterativen und interdisziplinä-ren Prozess entwickelt werden. So ergeben sich zahlreiche pla-nerische Optionen blau-grüner Infrastruktur, die anhand des Oxford-Quartiers in Münster exemplarisch dargestellt werden. Die erfolgreiche Umsetzung solcher ganzheitlichen Planungen erfordert interdisziplinäre Zusammenarbeit über bisherige kom-munale Organisations- und Arbeitsstrukturen hinweg. Je nach Planungsphase unterstützen dabei unterschiedlich differenzier-te Planungswerkzeuge die Entscheidungsfindung (zum Beispiel WABILA, SWMM-UrbanEVA).
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.
Results from a long-term stormwater quality monitoring program were used to derive total suspended solids (TSS) event load distributions at four small urban environments (flat roof, parking lot, residential catchment, high traffic street). Theoretical distribution functions were fitted to the empirical distribution functions obtained. Parameters of the theoretical distribution functions were optimized with respect to a likelihood function to get both optimized parameters and standard errors. Kolmogorov-Smirnov and Anderson-Darling test statistics were applied to assess the goodness-of-fit between empirical and theoretical distribution. The lognormal distribution function was found to be most expressive to approximate empirical TSS event load distributions at all sites. However, the goodness-of-fit of the statistical model strongly depends on the number of events available. Based on the results of a Monte-Carlo-based resampling strategy, around 40 events should be considered.
The stormwater management model SWMM of the US EPA is widely used to analyse, design or optimise urban drainage systems. To perform advanced analysis and visualisations of model data this technical note introduces the R package swmmr. It contains functions to read and write SWMM files, initiate simulations from the R console and to convert SWMM model files to and from GIS data. Additionally, model data can be transformed to produce high quality visualisations. In accordance with SWMM’s open source policy the package can be obtained through github.com or the Comprehensive R Archive Network (CRAN).
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%.
Bauatlas NRW: Analyse regionaler Potenziale für die Kreislaufführung von mineralischen Bauabfällen
(2020)
Nordrhein-Westfalen braucht eine gut aufgestellte Wasserforschung,
um den heutigen und künftigen Herausforderungen im
Land sowie auch national und international gewachsen zu sein.
Eine erste Erfassung der Wasserforschung in Nordrhein-Westfalen
im Sommer 2017 vermittelte Fakten zu Bestand, Defiziten
und Entwicklungspotenzialen. Mehr als 750 Wissenschaftler
forschen in Nordrhein-Westfalen in über neunzig Forschungsgruppen
verschiedener Disziplinen zum Thema Wasser. Die
Schwerpunkte liegen primär in den Ingenieurwissenschaften,
aber auch in den Natur-, Geo-, Sozial-, Wirtschafts- und Rechtswissenschaften.
Universitäten, Fachhochschulen, An-Institute
sowie außeruniversitäre Forschungsinstitutionen tragen zur
breit aufgestellten Wasserforschung bei, die unter anderem in
sechs Forschungszentren und zahlreichen Kooperationsprojekten
untereinander vernetzt ist. Der guten nationalen Vernetzung der
Akteure stehen befriedigende internationale und stark ausbaufähige
europäische Kontakte gegenüber. Die internationale
Sichtbarkeit und Attraktivität der Wasserforschung in Nordrhein-
Westfalen wird ihren Spitzenleistungen in einzelnen Bereichen
nicht gerecht. Ein vertiefter Praxistransfer von Forschungsergebnissen
offeriert der Wasserwirtschaft innovative, praxistaugliche
Lösungen und zudem der Umweltwirtschaft interessantere
Marktchancen. Besonders günstige Randbedingungen
sind in den innovationsfähigen Kommunen und Wasserverbänden
des großen, dicht besiedelten und an Landschaftstypen reichen
Bundeslandes Nordrhein-Westfalen zu sehen. Im nächsten
Schritt wird zu analysieren sein, wie die Potenziale der Wasserforschung
in Nordrhein-Westfalen effizienter genutzt und ausgebaut
werden können, um zur zukunftssicheren und nachhaltigen
Ausrichtung der Wasserwirtschaft in Nordrhein-Westfalen,
zu wissenschaftlicher Exzellenz und umweltwirtschaftlichem Erfolg
des Landes beizutragen.
BIM in der Lehre
(2017)
Sortenrein trennen
(2017)
Stormwater Pollutant Process Analysis with Long-Term Online Monitoring Data at Micro-Scale Sites
(2016)
Probleme bei Aufgrabungen
(2016)