人工湿地系统微生物去除污染物的研究进展

人工湿地污水处理系统具有净化效果显著、建设和运行费用低廉、管理简便等优点,近年来越来越受到人们的重视。人工湿地是利用介质、植物和微生物构成的复合系统来处理污水。微生物在人工湿地系统净化污水过程中发挥着重要作用。介绍了人工湿地系统中微生物去除污染物的研究进展,重点讨论了人工湿地对污染物和特殊有机污染物的去除以及系统基质中微生物的种群和活性等内容,并结合我国研究现状展望了该领域的研究前景。人工湿地系统微生物对污染物去除将成为人工湿地生态系统服务功能评价、人工湿地生态系统健康与稳定的诊断的重要组成部分。

Progress in studies on pollutant removal by microorganisms in constructed wetlands

Constructed wetland systems are increasingly used to treat domestic sewage, industrial wastewater and agricultural runoff in recent years. The wetland treatment process has been gaining international interests and applications due to its low maintenance and operational cost, and high removal capacity. Constructed wetland is a new energy-saving wastewater treatment technology, which is consisted of media, macrophytes and microorganisms. Microorganisms play a key role in purifying wastewater in the constructed wetlands. Recent studies on microorganisms of the constructed wetlands were reviewed, including removal of pollutants and special organic pollutants as well as microbial communities and activities in the ecological systems of the constructed wetlands. And the foreground of the research area was prospected after summarizing the present study state in our country. This research area will become important basic theory of ecosystem service evaluation, ecosystem diagnosis of health and stability in constructed wetlands.