urban water Articles
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An integrated approach for urban water quality assessment
This paper introduces an integrated approach for the assessment of receiving water quality and the relative contribution of the urban drainage system to perceived receiving water quality problems. The approach combines mass balances with relatively simple receiving water impact models. The research project has learned that the urban drainage system is only one of the determining factors with ...
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A novel integrated assessment methodology of urban water reuse
Wastewater is no longer considered a waste product and water reuse needs to play a stronger part in securing urban water supply. Although treatment technologies for water reclamation have significantly improved the question that deserves further analysis is, how selection of a particular wastewater treatment technology relates to performance and sustainability? The proposed assessment model ...
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Adaptation of sewer networks using integrated rehabilitation management
The urban water structure is aging and in need of rehabilitation. Further, the need to address future challenges (climate change, urban development) also arise lines. This study investigates if it is possible to combine rehabilitation and adaptation measures. To do so, we combined an urban development model, an urban drainage model and a rehabilitation model. A case study of a medium-sized ...
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Modelling of
E. coli distribution in coastal areas subjected to combined sewer overflowsRivers, lakes and the sea were the natural receivers of raw urban waste and storm waters for a long time but the low sustainability of such practice, the increase of population and a renewed environmental sensibility increased researcher interest in the analysis and mitigation of the impact of urban waters on receiving water bodies (RWB). In Europe, the integrated modelling of drainage systems ...
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The City Blueprint of Amsterdam: an assessment of integrated water resources management in the capital of the Netherlands
In this study the sustainability of integrated water resources management in Amsterdam has been reviewed using the City Blueprint approach. The City Blueprint® is a set of 24 dedicated indicators divided over eight categories, i.e., water security, water quality, drinking water, sanitation, infrastructure, climate robustness, biodiversity and attractiveness, and governance including ...
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Green–blue water in the city: quantification of impact of source control versus end-of-pipe solutions on sewer and river floods
Urbanization and climate change trends put strong pressures on urban water systems. Temporal variations in rainfall, runoff and water availability increase, and need to be compensated for by innovative adaptation strategies. One of these is stormwater retention and infiltration in open and/or green spaces in the city (blue–green water integration). This study evaluated the efficiency of ...
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Integrated assessment and scenarios simulation of urban water security system in the southwest of China with system dynamics analysis
The demand for global freshwater is growing, while global freshwater available for human use is limited within a certain time and space. Its security has significant impacts on both the socio-economic system and ecological system. Recently, studies have focused on the urban water security system (UWSS) in terms of either water quantity or water quality. In this study, water resources, water ...
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Combining multimedia models with integrated urban water system models for micropollutants
Integrated urban water system (IUWS) modeling aims at assessing the quality of the surface water receiving the urban emissions through sewage treatment plants, combined sewer overflows (CSOs) and stormwater drainage systems. However, some micropollutants tend to appear in more than one environmental medium (air, water, sediment, soil, groundwater, etc.). In this work, a multimedia fate and ...
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Case study - Monitoring of pollution in the surface water in urban area
Project reference Project: Pilot project in Umeå County Customer: Umeå County, Sweden Project period 2004 Nature of task: time integrated monitoring of PCBs, PAHs, OCPs, Toxicity and metals in three streams in Umeå city area. Summary Passive sampling devices SPMD and DGT were deployed in five sites in Djupbäcken stream for four weeks period. After retrieval SPMDs were ...
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Assessing water renewal of the northern coastal zone in China using a variable fuzzy pattern recognition model
An integrated indexes system for assessing water renewal of the northern coastal zone is developed; and rough sets theory is used to eliminate the redundancy in the indexes system. Then a variable fuzzy pattern recognition model is selected to evaluate the state of water renewal, which involves fuzzy information and interval numbers of classification standard values for evaluation. The indexes ...
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Risks of carbamate and organophosphate pesticide mixtures to salmon in the Pacific Northwest
Salmon populations in the Pacific Northwest are being affected by a variety of environmental stressors including intense fishing pressure, parasites and disease, climatic variability and change, land development, hatchery production, hydropower operations, stormwater runoff, and exposure to toxic contaminants. In recent years, there has been much concern that mixtures of pesticides are causing ...
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Monitoring the aquatic toxicity of mosquito vector control spray pesticides to freshwater receiving waters
Pesticides are applied to state and local waterways in California to control insects such as mosquitoes, which are known to serve as a vector for West Nile Virus infection of humans. The California State Water Resources Control Board adopted a National Pollutant Discharge Elimination System General Permit to address the discharge of pesticides to waters of the United States resulting from ...
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