urban sewer system Articles
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Impacts of onsite greywater reuse on wastewater systems
Together with significant water savings that onsite greywater reuse (GWR) may provide, it may also affect the performance of urban sewer systems and wastewater treatment plants (WWTPs). In order to examine these effects, an integrated stochastic simulation system for GWR in urban areas was developed. The model includes stochastic generators of domestic wastewater streams and gross solids ...
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Performance assessment of separate and combined sewer systems in metropolitan areas in southern China
To assess the performance of urban drainage systems in metropolitan areas in southern China, 12 urban drainage systems, including nine separate sewer systems (SSSs) and three combined sewer systems (CSSs) were monitored from 2008 to 2012 in Shanghai and Hefei. Illicit connection rates of SSS were determined. The results indicate that serious illicit connections exist for most SSSs. Annual ...
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Modelling the catchment-scale environmental impacts of wastewater treatment in an urban sewage system for CO2 emission assessment
Water shortages and water pollution are a global problem. Increases in population can have further acute effects on water cycles and on the availability of water resources. Thus, wastewater management plays an important role in mitigating negative impacts on natural ecosystems and human environments and is an important area of research. In this study, we modelled catchment-scale hydrology, ...
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Zn and Pb emissions from roofing materials – modelling and mass balance attempt at the scale of a small urban catchment
Many studies have shown that roofing materials are an important source of metals in urban runoff. Today, in the context of the European Water Directive (2000/60 CE), the quantification of these emissions is necessary, and thus the development of assessment tools is needed. This study focuses on a small urban catchment (drained by a separative sewer system). Atmospheric fallout, road runoff, roof ...
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Improving the performance of an integrated urban wastewater system under future climate change and urbanisation scenarios
This paper presents the results of a study to investigate the performance of an integrated urban wastewater system (IUWS) consisting of a sewer system, biological wastewater treatment plant and receiving water under future climate change and urbanisation. In particular, the roles of both system operational control and (re)design were studied as means to ensure future compliance of the system ...
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Combined sewer overflow control with LID based on SWMM: an example in Shanghai, China
Although low impact development (LID) has been commonly applied across the developed countries for mitigating the negative impacts of combined sewer overflows (CSOs) on urban hydrological environment, it has not been widely used in developing countries yet. In this paper, a typical combined sewer system in an urbanized area of Shanghai, China was used to demonstrate how to design and choose CSO ...
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Hydrodynamic Modeling of SuDS (BMPs or LIDs) schemes - Case Study
La Marina is an urban area within the Municipality of Elche (South of Alicante, on the Mediterranean Spanish coast), that is rapidly growing. This growth leads to an increase of impervious surfaces, which generate greater run-off volumes with deteriorated water quality. The original small urban area has a combined sewer system, but separated foul and stormwater systems are compulsory for the ...
By Innovyze
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Optimizing Wastewater Treatment
' Growing volumes of both industrial and municipal wastewater are being discharged to surface waters but the treatment provided frequently is inadequate to protect the desired uses of the receiving waters. With limited resources in terms of both institutional capacity and finance, governments face difficult choices in optimizing their investments in municipal systems and establishing practical ...
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