摘要
文章通过采用生活污水分别水培吊兰、空心菜和水芹,研究了水培植物净化系统不同氮磷去除作用对氮磷去除的贡献。结果表明,吊兰、空心菜和水芹三种水培植物净化系统中,微生物及其它作用对氮磷去除的贡献最大,植物吸收作用对氮磷去除的贡献次之;而沉淀作用、粘附作用和吸附作用对氮磷去除的贡献相对较小。在吊兰、空心菜和水芹三种水培植物净化系统中,因微生物及其它作用对总氮去除的贡献率分别为71.8%、65.3%和64.6%,对总磷去除的贡献率分别为58.3%、43.0%和60.0%;因植物吸收作用对总氮去除的贡献率分别为23.8%、28.9%和30.8%,对总磷去除的贡献率分别为23.7%、30.4%和21.2%;而因沉淀作用、粘附作用和吸附作用对总氮去除的贡献率均<3%,对总磷去除的贡献率均<15%。
Contribution of different roles on total nitrogen and total phosphorus removal by using aquatic Chlorophytum comosum,Mater convolvulus and cress to purify domestic wastewater was studied.Results showed that in the three purification systems,the role of microorganisms and others occupied the first,the role of plant absorption occupied the second,while roles of sedimentation,conglutination and sorption were smaller relatively,with the contribution rates on total nitrogen removal which were caused by the role of microorganism and others as 71.8%,65.3% and 64.6% respectively,and the contribution rates on total phosphorus removal as 58.3%,43.0% and 60.0% respectively.The contribution rates on total nitrogen removal which were caused by the role of plant absorption were 23.8%,28.9% and 30.8% respectively,and the contribution rates on total phosphorus removal were 23.7%,30.4% and 21.2% respectively.But the contribution rates on total nitrogen removal which were caused by the role of sedimentation,conglutination and sorption were below 3%,and the contribution rate on total phosphorus removal was below 15%.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2011年第5期175-178,共4页
Environmental Science & Technology
基金
四川省教育厅科研基金项目资助(09zz033)
西南科技大学博士基金资助项目(07zx0103)
关键词
水培植物
净化系统
去除氮磷
贡献率
aquatic plants
purification system
removal of nitrogen and phosphorus
contribution rate
