组合型人工湿地系统中污染物去除过程分析  

Analysis of Pollutant Removal Process in Hybrid Constructed Wetland System

作　　者：薛竣 夏绍凤 高文乔 王矛矛 Xue Jun;Xia Shaofeng;Gao Wenqiao;Wang Maomao(Hefei Municipal Design&Research Institute Co.,Ltd.,Hefei,Anhui 230009,China)

机构地区：[1]合肥市市政设计研究总院有限公司,安徽合肥230009

出　　处：《绿色科技》2022年第4期62-65,共4页Journal of Green Science and Technology

基　　金：安徽省住房和城乡建设厅研究开发项目“湿地生态系统进水主要污染物解析及其去除过程研究”。

摘　　要：研究了污水在组合型人工湿地系统中污染物的去除过程,对比分析了湿地各单元在污染物去除过程中的贡献和潜在机制。研究结果表明:人工湿地系统对污水中主要污染物具有良好的处理效果,COD、TN、NH^(+)_(4)-N、NO^(-)_(3)-N、TP去除率分别为65.8%、96.4%、99.5%、92.9%和97.14%。湿地系统中污染物的降解主要集中在曝气好氧塘单元,而预处理塘单元和多级表流湿地在污染物降解中贡献较低。污水色度和浊度在经人工湿地系统处理后显著降低,出水色度和浊度分别为12度和1.9 NTU,其中蓝藻增长是预处理塘和曝气好氧塘色度升高的主要原因。此研究结果可为组合型人工湿地系统工艺调整和水质提升提供参考。The pollutant removal process of sewage in the hybrid constructed wetland system was studied,and the contribution and potential mechanism of each wetland unit in the pollutant removal process were compared and analyzed.The results show that the constructed wetland system has good treatment effects on the main pollutants,and the removal rates of COD,TN,NH^(+)_(4)-N,NO^(-)_(3)-N and TP are 65.8%,96.4%,99.5%,92.9%and 97.14%,respectively.In the wetland system,the degradation of pollutants mainly concentrated in the aerated aerobic pond unit,while the pretreatment pond unit and multistage surface flow wetland contributed less to the degradation of pollutants.The chromaticity and turbidity of the effluent decreased significantly after treatment by the constructed wetland system,and the chromaticity and turbidity of the effluent were 12 degrees and 1.9 NTU,respectively.The increase of cyanobacteria was the main reason for the chromaticity increase of the pretreatment pond and aerated aerobic pond.This study provided scientific basis for process adjustment and water quality improvement of combined constructed wetland system.

关 键 词：人工湿地 微生物 水污染 

分 类 号：X703[环境科学与工程—环境工程]