Evaluation of effectiveness of combined sewer overflow control measures by operational data

2011 ◽  
Vol 63 (2) ◽  
pp. 325-330 ◽  
Author(s):  
K. Schroeder ◽  
M. Riechel ◽  
A. Matzinger ◽  
P. Rouault ◽  
H. Sonnenberg ◽  
...  
Keyword(s):  
Rainfall Data ◽  
Control Measures ◽  
Combined Sewer Overflow ◽  
Sewer System ◽  
Combined Sewer ◽  
Efficiency Control ◽  
Sewer Overflow ◽  
Overflow Control ◽  
Term Data

The effect of combined sewer overflow (CSO) control measures should be validated during operation based on monitoring of CSO activity and subsequent comparison with (legal) requirements. However, most CSO monitoring programs have been started only recently and therefore no long-term data is available for reliable efficiency control. A method is proposed that focuses on rainfall data for evaluating the effectiveness of CSO control measures. It is applicable if a sufficient time-series of rainfall data and a limited set of data on CSO discharges are available. The method is demonstrated for four catchments of the Berlin combined sewer system. The analysis of the 2000–2007 data shows the effect of CSO control measures, such as activation of in-pipe storage capacities within the Berlin system. The catchment, where measures are fully implemented shows less than 40% of the CSO activity of those catchments, where measures have not yet or not yet completely been realised.

Experience with Vortex Separators for Combined Sewer Overflow Control

1993 ◽  
Vol 27 (5-6) ◽  
pp. 93-104 ◽  
Author(s):  
H. Brombach ◽  
C. Xanthopoulos ◽  
H. H. Hahn ◽  
W. C. Pisano
Keyword(s):  
Separation Efficiency ◽  
Operational Reliability ◽  
Second Phase ◽  
Combined Sewer Overflow ◽  
Specific Storage ◽  
Impervious Area ◽  
Evaluation Phase ◽  
Combined Sewer ◽  
Sewer Overflow ◽  
Overflow Control

In 1987 the first vortex solids separator facility in Germany was installed for combined sewer overflow (CSO) control. The separation efficiency was optimized in the hydraulic laboratory using scaled down models with artificial tracers to simulate typical sewage particulates. The station has two parallel operating vortex separators and serves a connected and impervious area of about 11 hectares (ha) and 1,500 people. The specific storage volume of the station is 7.2 m3 per ha. Two evaluation programs were conducted. The first evaluation phase noted the operational reliability, hydraulic loads, overflow frequencies and water mass balances. The second phase monitored separation efficiencies. The evaluation showed that vortex solids separators are now ready for use in CSO control.

Implementing green infrastructure for stormwater management and combined sewer overflow control

2021 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Layane Christine Vieira ◽  
Betina Frigotto De Lima ◽  
Jo�ão Vitor Erlacher De Figueiredo ◽  
Sara Coimbra Da Silva ◽  
Manuella Fagundes Bet ◽  
...  
Keyword(s):  
Green Infrastructure ◽  
Stormwater Management ◽  
Combined Sewer Overflow ◽  
Combined Sewer ◽  
Sewer Overflow ◽  
Overflow Control

Long‐term biosolids planning with an operational mega reservoir for combined sewer overflow‐impacted stormwater capture

2019 ◽  
Vol 92 (1) ◽  
pp. 5-10
Author(s):  
Dominic A. Brose ◽  
Peter O’Brien ◽  
Judy Moran‐Andrews ◽  
Jonathan S. Grabowy ◽  
Thomas E. Kunetz ◽  
...  
Keyword(s):  
Combined Sewer Overflow ◽  
Combined Sewer ◽  
Sewer Overflow
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