摘要
介绍了人工湿地系统中植物在污水脱氮方面发挥的重要作用,简述了目前研究中常用的3种湿地植物类型,包括挺水植物、浮水植物和沉水植物;介绍了植物脱氮的主要机理,植物通过吸收利用、根系微生物的硝化反硝化作用,来实现氮的去除,指出不同植物由于生理特性不同,对氮的去除效果不同。通过对比研究不同植物的脱氮效果,总结了人工湿地中植物的配置原则和影响植物脱氮的主要因素。对今后的相关研究方向进行了展望。
Plants have a great effect on nitrogen removal in constructed wetland treatment system. At present, wetland plants are divided into three types： emergent plant, floating plant and submerged plant. Nitrogen removal by plants includes absorption, nitrification and denitrification of microorganisms in root zone. Due to the diverse physiological characteristics, plants have different effect on nitrogen removal. By comparing nitrogen removal efficiency of different plants, the configuration principle of plants in constructed wetlands and the main factors of plants on nitrogen removal are discussed. In addition, a prospect for future study and relevant suggestions are given.
出处
《水处理技术》
CAS
CSCD
北大核心
2014年第3期22-26,共5页
Technology of Water Treatment
基金
国家自然科学基金(51079028
51309053)
关键词
人工湿地
植物
脱氮
配置
constructed wetland
plant
nitrogen removal
configuration
