Microbial processes influencing performance of treatment wetlands: A review
Microbial processes influencing performance of treatment wetlands: A review
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DOI：
10.1016/j.ecoleng.2008.12.030
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发表时间：
2009-06-01
影响因子：
3.8
通讯作者：
Stein, Otto R.
中科院分区：
文献类型：
--
作者：
Faulwetter, Jennifer L.;Gagnon, Vincent;Stein, Otto R.
本文综述了微生物去除碳、氮的作用机制。和含硫化合物的处理湿地（TW），并确定，分类和比较各种技术，从平板计数到更现代的基因组方法，用于阐明这些机制。特定污染物的去除通常与特定的微生物功能群相关，因此采用增强该组活性的设计和操作方法将更好地优化性能。氧化还原条件是一个可操作的参数，可用于优化目标官能团的生长，因此强调了影响TW氧化还原条件的因素及其对有机碳去除机制的影响。讨论了影响N和S循环微生物生长和活性的环境因素（包括温度、pH值、盐度、植物物种选择以及有机碳和/或抑制物质的可用性），特别关注可能被操纵的因素。这些信息用于提供设计和操作方法，这些方法可能会增强所需微生物功能群的生长，并预测需要进行哪些额外的以微生物为重点的研究，以更好地优化TW性能。(C)2009 Elsevier B. V.保留所有权利。
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. (C) 2009 Elsevier B.V. All rights reserved.