摘要
简要介绍了人工温地脱氮技术原理,主要包括水生植物的吸收、微生物的硝化/反硝化脱氮、氮的挥发、氨化作用、基质吸附和离子交换作用。并讨论了影响脱氮效率的因素,分析了国内外的技术研究现状,为进一步开展人工湿地脱氮机理的研究和优化人工湿地污水处理系统设计提供参考。
The mechanism of denitrification by constructed wetland is introduced which include the absorption by the hydrophyte and nitration and denitrification by the microorganism and volatilization of ammonia and ammonification and iron exchange. The factors impacting the denitrification rate are discussed. The present status of the technology in China and foreign countries are analyzed.
出处
《环境科学导刊》
2009年第4期13-16,共4页
Environmental Science Survey
基金
国家科技部国际科技合作重点项目"减轻巢湖富营养化项目Ⅱ期"(2008DFA91310)
关键词
人工湿地
脱氮
研究进展
constructed wetland
denitrification
progress
