期刊论文

Mode of constructed wetland in treatment of rural mixed sewage and its effect analysis

中文

环境污染与防治

1001-3865

2019

41

2

231-235,256

10.15985/j.cnki.1001-3865.2019.02.020

湖南省教育厅一般项目(No.2016-46) 湖南省重点研发计划项目(No.2018SK2017)。

本校为第一机构

针对生活污水和农田灌溉污水污染特点, 以株洲攸县某人工湿地为例, 采用"表流-潜流"串联组合人工湿地模式对混合污水进行处理, 并对该系统的水质及植物生长特性进行分析.结果表明:该系统出水中COD、TN、TP、氨氮分别为39.10、1.52、0.25、0.61mg/L, 达到《城镇污水处理厂污染物排放标准》 (GB 18918—2002) 一级A标准;表流单元的香菇草 (Hydrocotyle vulgar-is) 和狐尾藻 (Myriophyllum verticillatum) 生物量远高于潜流单元的挺水植物, 但其最大根长却远小于潜流单元的植物, 挺水植物再力花株高明显高于其他植物.

In view of the pollution characteristics of domestic sewage and farmland irrigation, taking a constructed wetland in Youxian County of Zhuzhou as an example, the mixed sewage disposal of constructed wetlands under the mode of surface flow-subsurface flow was designed, and the water quality and plant growth characteristics were analyzed.The results showed that COD, TN, TP and ammonia nitrogen of effluent were 39.10, 1.52, 0.25, 0.61 mg/L, respectively.The designed effluent concentrations of pollutants could reach ClassⅠ A of"Discharge standard ...