Water quality deterioration at a karst spring (Gallusquelle, Germany) due to combined sewer overflow: evidence of bacterial and micro-pollutant contamination

2008 ◽  
Vol 57 (4) ◽  
pp. 797-808 ◽  
Author(s):  
B. Heinz ◽  
S. Birk ◽  
R. Liedl ◽  
T. Geyer ◽  
K. L. Straub ◽  
...  
Keyword(s):  
Water Quality ◽  
Combined Sewer Overflow ◽  
Karst Spring ◽  
Quality Deterioration ◽  
Combined Sewer ◽  
Sewer Overflow ◽  
Water Quality Deterioration

Impact of an intense combined sewer overflow event on the microbiological water quality of the Seine River

2011 ◽  
Vol 45 (2) ◽  
pp. 893-903 ◽  
Author(s):  
Julien Passerat ◽  
Nouho Koffi Ouattara ◽  
Jean-Marie Mouchel ◽  
Vincent Rocher ◽  
Pierre Servais
Keyword(s):  
Water Quality ◽  
Combined Sewer Overflow ◽  
Seine River ◽  
Combined Sewer ◽  
Microbiological Water Quality ◽  
Sewer Overflow

Effectiveness of combined sewer overflow treatment for dissolved oxygen improvement in the Chicago Waterways

2007 ◽  
Vol 56 (1) ◽  
pp. 215-222 ◽  
Author(s):  
E. Alp ◽  
C.S. Melching ◽  
H. Zhang ◽  
R. Lanyon
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Pollutant Removal ◽  
Combined Sewer Overflow ◽  
Pumping Stations ◽  
Short Period ◽  
Combined Sewer ◽  
High Pollution ◽  
Wet Weather ◽  
Sewer Overflow

An Use Attainability Analysis (UAA) has been initiated to evaluate what water-quality standards can be achieved in the Chicago Waterway System (CWS). There are nearly 200 combined sewer overflow (CSO) locations discharging to the CWS by gravity. Three CSO pumping stations also drain approximately 140 km2. Because of the dynamic nature of the CWS the DUFLOW model that is capable of simulating hydraulics and water-quality processes under unsteady-flow conditions was used to evaluate the effectiveness of water-quality improvement techniques identified by the UAA including CSO treatment. Several CSO treatment levels were applied at gravity flow CSOs to evaluate improvement in dissolved oxygen (DO). The results show that pollutant removal at CSOs improves DO to a certain degree, but it still was not sufficient to bring DO concentrations to 5 mg/L or higher for 90% of the time during wet weather at most locations on the CWS. Flow from the pumping stations results in substantial stress on DO since a huge amount of un-treated water with a high pollution load is discharged into the CWS in a short period of time at a certain location. The simulation results indicate that CSO treatment does not effectively improve DO during wet-weather periods on the CWS.

Evaluation of the effectiveness of green infrastructure on hydrology and water quality in a combined sewer overflow community

2019 ◽  
Vol 665 ◽  
pp. 69-79 ◽  
Author(s):  
Jingqiu Chen ◽  
Yaoze Liu ◽  
Margaret W. Gitau ◽  
Bernard A. Engel ◽  
Dennis C. Flanagan ◽  
...  
Keyword(s):  
Water Quality ◽  
Green Infrastructure ◽  
Combined Sewer Overflow ◽  
Combined Sewer ◽  
Sewer Overflow

Water-quality modeling of combined sewer overflow effects on Newtown Creek

1996 ◽  
Vol 68 (6) ◽  
pp. 1012-1023 ◽  
Author(s):  
Guy Apicella ◽  
Frederick Schuepfer ◽  
James Zaccagnino ◽  
Vincent DeSantis
Keyword(s):  
Water Quality ◽  
Water Quality Modeling ◽  
Combined Sewer Overflow ◽  
Quality Modeling ◽  
Combined Sewer ◽  
Sewer Overflow
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