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Nature and transformation of dissolved organic matter in treatment wetlands

Environmental Science and Technology

By:
, , ,
DOI: 10.1021/es010518i

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Abstract

This investigation into the occurrence, character, and transformation of dissolved organic matter (DOM) in treatment wetlands in the western United States shows that (i) the nature of DOM in the source water has a major influence on transformations that occur during treatment, (ii) the climate factors have a secondary effect on transformations, (iii) the wetlands receiving treated wastewater can produce a net increase in DOM, and (iv) the hierarchical analytical approach used in this study can measure the subtle DOM transformations that occur. As wastewater treatment plant effluent passes through treatment wetlands, the DOM undergoes transformation to become more aromatic and oxygenated. Autochthonous sources are contributed to the DOM, the nature of which is governed by the developmental stage of the wetland system as well as vegetation patterns. Concentrations of specific wastewaterderived organic contaminants such as linear alkylbenzene sulfonate, caffeine, and ethylenediaminetetraacetic acid were significantly attenuated by wetland treatment and were not contributed by internal loading.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Nature and transformation of dissolved organic matter in treatment wetlands
Series title:
Environmental Science and Technology
DOI:
10.1021/es010518i
Volume
35
Issue:
24
Year Published:
2001
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Environmental Science and Technology
First page:
4805
Last page:
4816
Number of Pages:
12