期刊论文

Nitrogen and Phosphorus Removal by Integrated Ecological Engineering Treatment System in a Small Agricultural Watershed

Peng, Ying-Xiang(18464598@qq.com)

中文

环境科学

0250-3301

2019

40

5

2194-2201

10.13227/j.hjkx.201809181

2018YFD0800504:国家重点研发计划 2017JJ5061:湖南省自然科学基金 2016JC2032:湖南省重点研发计划项目 2017NK2161:湖南省重点研发计划项目 2017NK2383:湖南省重点研发计划项目 2017CT5010:中央引导地方科技发展专项

本校为第一机构

以典型农业小流域——开慧河流域源区为研究对象,基于研究区农业面源污染的主要排放特征,建立以生态湿地为主的小流域面源污染生态工程综合治理系统,重点探讨其对水体氮磷污染物的去除效果.结果表明,畜禽养殖业是开慧河流域源区水体氮磷污染物的主要来源,需要重点防控.组合生态湿地处理工程对农村分散式生活与养殖混合废水总氮（TN）、总磷（TP）的平均去除率为87. 1%和90. 9%;多级人工湿地拦截工程对农田排水与分散式养殖混合废水TN、TP的平均去除率为85. 7%和84. 9%;景观型生态湿地净化工程对末端汇水区水体中TN、TP的去除率在27. 1%～67. 4%和13. 3%～81. 5%之间.整个生态工程综合治理系统对...

Based on the discharge characteristics of agricultural non-point source pollution in the headstream region of the Kaihui River-a typical small agricultural watershed, an integrated ecological engineering treatment system (IEETS) was constructed with ecological wetland as the core unit to control the pollution. The nitrogen (N) and phosphorus (P) removal performances of the IEETS were discussed in this study. The results showed that the dominant source of N and P in the study area was livestock and poultry breeding, which was urgent to control. ...