Detailed observation and measurement of sewer sediment erosion under aerobic and anaerobic conditions

Journal article (2005)

Authors

A.M.A. Schellart University of Sheffield
RG Veldkamp (OLD) CITG Section Sanitary Engineering (< 2005)
M Klootwijk Sanitary Engineering - CEG
F.H.L.R. Clemens Sanitary Engineering - CEG
SJ Tait University of Sheffield, (OLD) CITG Section Sanitary Engineering (< 2005)
R Ashley University of Sheffield
C Howes Thames Water Utilities Ltd.
Research Group
Sanitary Engineering (CEG) (TU Delft)
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Published Date

10-10-2005

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Water Management

Research Group

Sanitary Engineering

Abstract

A greater understanding of the erosion behaviour of sewer sediments is necessary in order to reliably estimate the amount and nature of the sewer sediments released from deposits in sewers and transported either to waste water treatment plants or discharged into the environment. Research has indicated that microbial activity in sediment can influence the physical release of sediment from in-pipe deposits. This paper reports on a series of erosion tests in which sewer sediments from different sewer networks are kept under different environmental conditions and their resistance to erosion is examined. The erosion tests are carried out under aerobic and anaerobic conditions and two temperatures, one representing ambient sewer temperatures and a lower temperature that significantly suppresses bacterial activity.