科研之友
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摘要
In separate sewer systems, there is a risk that wastewater from illicit connections may enter a stormwater sewer and ultimately outfall into receiving waters, adversely affecting receiving water quality and increasing risks to public health. A common approach in using methods for the detection of wastewater pollution in stormwater systems for some municipalities is to take grab samples at the outlet of a stormwater sewer, some distance away from the point(s) of ingress of the pollution. However, once pollution enters a stormwater network, the concentration or detectability of indicator parameters may change. The aim of this study was to evaluate the variation in detectability of various wastewater quality parameters depending upon the distance from the point of ingress of the wastewater into a stormwater sewer. This includes E. coli, total coliform, Enterococci, conductivity, turbidity, total suspended solids, and ammonium. This study introduces a maximum detection distancethe maximum distance at which the detection of individual quality parameters would no longer be reliable. Recommendations on planning a wastewater detection program and selecting appropriate indicator parameters are given.
- 出版日期2016-5
