The first flush in sewer systems - École des Ponts ParisTech Access content directly
Journal Articles Water Science and Technology Year : 1996

The first flush in sewer systems

Abstract

The first flush phenomenon of urban wet weather discharges is presently a controversial subject. Scientists do not agree with its reality, nor with its influences on the size of treatment works. Those disagreements mainly result from the unclear definition of the phenomenon. The objective of this article is first to provide a simple and clear definition of the first flush and then to apply it to real data and to obtain results about its appearance frequency. The data originate from the French database based on the quality of urban wet weather discharges. We use 80 events from 7 separately sewered basins, and 117 events from 7 combined sewered basins. The main result is that the first flush phenomenon is very scarce, anyway too scarce to be used to elaborate a treatment strategy against pollution generated by urban wet weather discharges.The first flush phenomenon of urban wet weather discharges is presently a controversial subject. Scientists do not agree with its reality, nor with its influences on the size of treatment works. Those disagreements mainly result from the unclear definition of the phenomenon. The objective of this article is first to provide a simple and clear definition of the first flush and then to apply it to real data and to obtain results about its appearance frequency. The data originate from the French database based on the quality of urban wet weather discharges. We use 80 events from 7 separately sewered basins, and 117 events from 7 combined sewered basins. The main result is that the first flush phenomenon is very scarce, anyway too scarce to be used to elaborate a treatment strategy against pollution generated by urban wet weather discharges.

Dates and versions

hal-00779541 , version 1 (22-01-2013)

Identifiers

Cite

A. Saget, G. Chebbo, Jean-Luc Bertrand-Krajewski. The first flush in sewer systems. Water Science and Technology, 1996, 33 (9), pp.101-108. ⟨10.1016/0273-1223(96)00375-7⟩. ⟨hal-00779541⟩
128 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More