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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Combined Sewer Overflows"”.
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The performance of certain combined sewer overflows with storage
The provision of storage at overflows is a commonly used technique for the reduction of pollution from combined sewer systems. Field data were gathered at three combined sewer overflow sites during dry weather and a wide range of high flow events. The overflows incorporated off-line storage which …
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Urban drainage modeling and evolutionary multiobjective optimization for combined sewer overflows prediction and control
… and river water quality degradation due to combined sewer over flows (CSOs) are prevailing problems in urban areas worldwide. In this study we have developed an integrated hydrologic-hydraulic and water quality modeling framework coupled with an evolutionary multiobjective optimization …
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Hydraulic modeling and evolutionary optimization for enhanced real-time decision support of combined sewer overflows
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Seth Robbins (robbins.sd@gmail.com) on 2014-01-16T18:19:40Z Item is restricted until 2016-01-16T18:19:34Z
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Impact of combined sewer overflows on hydrodynamics and sediment transport during flow reversal events in Chicago area waterway system
The student, Chieh Ying Chen, submitted this Thesis for approval on 2018-04-18 at 15:28.
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The use of a water quality model to evaluate the impacts of combined sewer overflows on the lower Hudson River
CSO discharges have long been recognized as a significant source of water pollution. While many sources of water pollution have been controlled over the past 20 years, CSOs continue to be a main environmental concern in several areas, especially in old cities. In the past, most CSO research focused …
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The Impact of Rochester Storm Sewers on the Water Quality of the Lower Genesee River: A Modeling Approach Using PCSWMM
… due to industrial and municipal sources, storm sewers, and urban runoff. In urban areas, nonpoint source pollution from stormwater runoff is known to be a dominant factor in water quality. An assessment of the lower Genesee River was initiated to determine impacts from the canal, storm sewers, …
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Hydrologic-hydraulic modeling for the dual drainage and flooding study of the Lawrence Avenue Underflow Sewer System
… city of Chicago, the Lawrence Avenue Underflow Sewer System (LAUSS) is the first tunnel system built with the intention to capture and store sewage with the aim to prevent Combined Sewer Overflows (CSO). It is located at the north-eastern area of Cook County, IL, and serves an area of 31 Km². In …
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Monitoring of storm sewer overflows
… has been attributed to the frequent operation of combined sewer overflows (C. S. O. s). As the existing need for overflow structures is unlikely to change in the foreseeable future it is imperative that these deleterious effects are minimised. The present study investigates the pollution …
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Role of sediment oxygen demand on the oxygen balance in the North Shore Channel of Chicago
… species, the Asian carp. The channel also has Combined Sewer Overflows (CSO) that release pollution from the city during larger storm events. By understanding the role of SOD in the North Shore Channel, engineers may be able to make decisions about intermittent pumping that would allow for …
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Navigating environmental, economic, and hydrologic tradeoffs in the design of green infrastructure for stormwater management in urban settings
… and in many of the United States’ cities, combined sewer overflows (CSOs). These CSOs dump untreated sewage and stormwater into local water bodies when the flow becomes too large due to extreme wet weather events. The impacts of CSOs and localized flooding can be extreme for a community, …
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Aesthetic pollutant loadings in upstream combined sewers.
An improvement to the standard of discharges from combined sewer overflows is necessary to meet the challenges set by the EC Urban Waste Water Treatment Directive (1991). To prevent aesthetic pollutants being discharged from a CSO, it is first necessary to gain an understanding of the quantity and …
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A computer vision approach for sewer overflow monitoring
Combined Sewer Systems (CSS) exist in over 700 communities across the United States. Under extreme wet conditions, excess inflow which is beyond the capacity of CSS results in Combined Sewer Overflows (CSOs); the consequence being direct discharge of untreated water into the environment. Current …
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Using Geophysics and Terrestrial LiDAR to Assess Stormwater Parameters in Vacant Lots in Philadelphia
… quality of urban streams and rivers. Cities with combined stormwater and sewer lines such as Philadelphia, have been tasked with decreasing runoff volumes to help reduce combined sewer overflows and improve the water quality of local waterways. The Philadelphia Water Department uses the …
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Implementation of three-dimensional eutrophication model of Bubbly Creek, Chicago, Illinois
… in Bubbly Creek is predominantly controlled by combined sewer overflows (CSO) from RAPS. The dissolved oxygen (DO) level in Bubbly Creek could reach near saturation when pumping activity occurs, and would rapidly decrease to near zero after the pumping activity has stopped. The contaminants …
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Optimal management and operational control of urban sewer systems
Combined sewer networks control, like many other real world problems, is usually identified with competing and conflicting objectives. Decision makers have a great need of selecting the best possible control strategy in minimizing the combined sewer overflows (CSOs) when controlling the sewer …
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Total emission analysis of sewerage systems and wastewater treatment plants
… to most effectively manage intermittent combined sewage discharges into urban watercourses in the UK is given in the Urban Pollution Management (UPM) manual. The method is based on the use of detailed computer models of the sewerage system, wastewater treatment plant and receiving …
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Embodied Virtual Reality: The Impacts of Human-Nature Connection During Engineering Design
… study was about a federal mandate to minimize combined sewer overflow in a neighborhood within Cincinnati, OH. Following the plan review, VR groups were given a VR walkthrough or flythrough of the case study area of interest as a selected avatar (embodied:bird, self-lens:oneself). Participants …
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Assessment of integrated green infrastructure-based stormwater controls in small to large scale developed urban watersheds
… discharges to water bodies, and decreased combined sewer overflow events. The main objective of this dissertation research was to examine the benefits of individual and integrated GI stormwater control practices at small to large scales in urban watersheds. The hypothesis of this research …
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Evaluating the impacts of an urban catchment on water and sediment quality of a receiving river
… the current approach to include emissions from combined sewer overflows and aerial deposition as well as account for in-sediment processes such as remobilisation, transport and degradation and further research in these areas is recommended.
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