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Chemosphere. 2009 Jan;74(3):349-62. doi: 10.1016/j.chemosphere.2008.09.062. Epub 2008 Nov 8.

Monitoring and assessing processes of organic chemicals removal in constructed wetlands.

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Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstr. 15, Leipzig D-04318, Germany. gwenael.imfeld@ufz.de

Abstract

Physical, chemical and biological processes interact and work in concert during attenuation of organic chemicals in wetland systems. This review summarizes the recent progress made towards understanding how the various mechanisms attributed to organic chemicals removal interact to form a functioning wetland. We also discuss the main degradation pathways for different groups of contaminants and examine some of the key characteristics of constructed wetlands that control the removal of organic chemicals. Furthermore, we address possible comprehensive approaches and recent techniques to follow up in situ processes within the system, especially those involved in the biodegradation processes.

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