TY - JOUR
T1 - On Hydraulic and Pollution Effects of Converting Combined Sewer Catchments to Separate Sewer Catchments
AU - Thorndahl, Søren Liedtke
AU - Schaarup-Jensen, Kjeld
AU - Rasmussen, Michael R.
PY - 2015
Y1 - 2015
N2 - The overall objective of this paper is to contribute to the standing debate concerning the advantages of separate sewer systems compared to traditional combined sewer systems. By a case study this investigation reveals that transformation of part of a town from being serviced with combined sewer systems to become serviced with separate sewer systems decreases the volumes of storm water and pollutants diverted to the waste water treatment plant and discharged as combined sewer overflow. This happens at the expense of an increase in volumes of storm water and pollutant loads diverted to local receiving waters when detention ponds are not built-in the new separate sewer systems. It is concluded that consequences can be fatal for receiving waters, if no retention of pollutants is integrated into the system.
AB - The overall objective of this paper is to contribute to the standing debate concerning the advantages of separate sewer systems compared to traditional combined sewer systems. By a case study this investigation reveals that transformation of part of a town from being serviced with combined sewer systems to become serviced with separate sewer systems decreases the volumes of storm water and pollutants diverted to the waste water treatment plant and discharged as combined sewer overflow. This happens at the expense of an increase in volumes of storm water and pollutant loads diverted to local receiving waters when detention ponds are not built-in the new separate sewer systems. It is concluded that consequences can be fatal for receiving waters, if no retention of pollutants is integrated into the system.
KW - Combined sewer systems vs. separate sewer systems
KW - MOUSE LTS Simulations
KW - Historical rainfall time series
KW - Annual discharge statistics
KW - Storage basins
KW - Combined sewer systems vs. separate sewer systems
KW - MOUSE LTS Simulations
KW - Historical rainfall time series
KW - Annual discharge statistics
KW - Storage basins
U2 - 10.1080/1573062X.2013.831915
DO - 10.1080/1573062X.2013.831915
M3 - Journal article
SN - 1573-062X
VL - 12
SP - 120
EP - 130
JO - Urban Water Journal
JF - Urban Water Journal
IS - 2
ER -