Sorption and high dynamics of micropollutants in sewers

Ort, C. and Gujer, W. (2008) Sorption and high dynamics of micropollutants in sewers. Water Science & Technology, 57 11: 1791-1797. doi:10.2166/wst.2008.309

Author Ort, C.
Gujer, W.
Title Sorption and high dynamics of micropollutants in sewers
Journal name Water Science & Technology   Check publisher's open access policy
ISSN 0273-1223
Publication date 2008
Year available 2008
Sub-type Article (original research)
DOI 10.2166/wst.2008.309
Volume 57
Issue 11
Start page 1791
End page 1797
Total pages 7
Place of publication London, United Kingdom
Publisher IWA Publishing
Language eng
Subject 0599 Other Environmental Sciences
1002 Environmental Biotechnology
Abstract Down-the-drain household chemicals are mostly discharged intermittently (i.e. with water pulses, e.g. pharmaceuticals from toilet flushing) and well soluble micropollutants can, therefore, be subject to significantly high short-term fluctuations. It is not known how these fluctuations are attenuated by sorption to sewer sediments or biofilm. First, we investigated in this paper the effect of sorption for substances with high, medium and low affinity to particulate matter based on computational experiments. For substances with high Koc we found that the additional attenuation of a load pattern due to sorption is in the same order of magnitude as caused by dispersion in a typical main sewer. The mass flux between wastewater and the first biofilm layer was identified as the most sensitive parameter. Furthermore, the interplay of systematic, slow diurnal variations does not affect short-term fluctuations. Second, during rain events partial erosion of the biofilm can lead to increased micropollutant loads for substances with high Koc. This increase is in the same order of magnitude as diurnal variations of the loads in the liquid phase and the TSS.
Keyword Biofilm
Household chemicals
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Advanced Water Management Centre Publications
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Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
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