Fate, behavior and effects of surfactants and their degradation products in the environment

Fate, behavior and effects of surfactants and their degradation products in the environment Surfactants are widely used in household and industrial products. After use, surfactants as well as their products are mainly discharged into sewage treatment plants and then dispersed into the environment through effluent discharge into surface waters and sludge disposal on lands. Surfactants have different behavior and fate in the environment. Nonionic and cationic surfactants had much higher sorption on soil and sediment than anionic surfactants such as LAS. Most surfactants can be degraded by microbes in the environment although some surfactants such as LAS and DTDMAC as well as alkylphenols may be persistent under anaerobic conditions. LAS were found to degrade in sludge amended soils with a half-lives of 7 to 33 days. Most surfactants are not acutely toxic to organisms at environmental concentrations and aquatic chronic toxicity of surfactants occurred at concentrations usually greater than 0.1 mg/L. However, alkylphenols have shown to be capable of inducing the production of vitellogenin in male fish at a concentration as low as 5 μg/L. More toxicity data are needed to assess the effects on terrestrial organisms such as plants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Environment International Elsevier

Fate, behavior and effects of surfactants and their degradation products in the environment

Environment International, Volume 32 (3) – Apr 1, 2006

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Publisher
Elsevier
Copyright
Copyright © 2005 Elsevier Ltd
ISSN
0160-4120
DOI
10.1016/j.envint.2005.07.004
pmid
16125241
Publisher site
See Article on Publisher Site

Abstract

Surfactants are widely used in household and industrial products. After use, surfactants as well as their products are mainly discharged into sewage treatment plants and then dispersed into the environment through effluent discharge into surface waters and sludge disposal on lands. Surfactants have different behavior and fate in the environment. Nonionic and cationic surfactants had much higher sorption on soil and sediment than anionic surfactants such as LAS. Most surfactants can be degraded by microbes in the environment although some surfactants such as LAS and DTDMAC as well as alkylphenols may be persistent under anaerobic conditions. LAS were found to degrade in sludge amended soils with a half-lives of 7 to 33 days. Most surfactants are not acutely toxic to organisms at environmental concentrations and aquatic chronic toxicity of surfactants occurred at concentrations usually greater than 0.1 mg/L. However, alkylphenols have shown to be capable of inducing the production of vitellogenin in male fish at a concentration as low as 5 μg/L. More toxicity data are needed to assess the effects on terrestrial organisms such as plants.

Journal

Environment InternationalElsevier

Published: Apr 1, 2006

References

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