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Microbial processes influencing performance of treatment wetlands: A review
Montana State University.
University of Montreal.
Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
Ecole Mines Nantes.
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2009 (English)In: ECOLOGICAL ENGINEERING, ISSN 0925-8574, Vol. 35, no 6, 987-1004 p.Article in journal (Refereed) Published
Abstract [en]

This review summarizes the microbial mechanisms responsible for removal of carbon, nitrogen. and sulfur compounds in treatment wetlands (TWs) and identifies, categorizes and compares various techniques, from plate count to more modern genomic methods used to elucidate these mechanisms. Removal of a particular pollutant is typically associated with a specific microbial functional group, therefore employment of design and operational methodologies that enhance the activity of that group will better optimize performance. Redox condition is a manipulable parameter that can be used to optimize growth of a targeted functional group, therefore factors influencing the TW redox condition and its influence on organic carbon removal mechanisms are emphasized. Environmental factors influencing growth and activity of N and S cycling microbes (including temperature, pH, salinity, plant species selection and availability of organic carbon and/or inhibiting substances) are discussed with particular attention to factors that might be manipulated. This information is used to offer design and operational methodologies that might enhance growth of a desirable microbial functional group and project what additional microbially-focused research is required to better optimize TW performance.

Place, publisher, year, edition, pages
2009. Vol. 35, no 6, 987-1004 p.
Keyword [en]
Constructed wetland, Metal, Nitrogen, PCR-DGGE, Plants, Redox, Rhizosphere, Sulfur
National Category
Social Sciences
URN: urn:nbn:se:liu:diva-19540DOI: 10.1016/j.ecoleng.2008.12.030OAI: diva2:225903
Available from: 2009-06-29 Created: 2009-06-26 Last updated: 2014-09-11

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Sundberg, Carina
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Department of Water and Environmental StudiesFaculty of Arts and Sciences
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