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复合水平流人工湿地对氮和有机污染物的 去除效果和动态变化
徐嘉波,施永海,张根玉,刘建忠,朱雅珠
0
(上海市水产研究所,上海市水产技术推广站,上海200433)
摘要:
将半咸水(S=7.5±0.1)复合水平流人工湿地同室内水泥池养殖暗纹东方鲀 (Takifugu obscurus) 结合, 构建室内集约化养殖—湿地生态系统, 研究了人工湿地处理养殖循环用水过程中,湿地不同沿程处理系统对NH4+-N、NO2--N、NO3--N、TSS和COD的去除规律和动态变化。结果表明,人工湿地对上述水质指标有良好的净化效果,NH4+-N平均去除率66.37%,NO2--N平均去除率97.68%,NO3--N平均去除率7.63%,TSS平均去除率80.39%,COD平均去除率16.50%。各水质指标在湿地床内的动态模型可表示为曲线:CL=C0·exp(K1L2+K2L+K3)。
关键词:  半咸水  人工湿地    有机污染物  动态变化
DOI:
投稿时间:2011-10-27
基金项目:上海市科学技术委员会(09ZR1429000)项目资助。
Nitrogen and organic matter removal efficiency and dynamic feature of integrated horizontal constructed wetlands
XU Jia-bo,SHI Yong-hai,ZHANG Gen-yu,LIU Jian-zhong,ZHU Ya-zhu
(Shanghai Fisheries Research Institute, Shanghai Fisheries Technical Extension Station, Shanghai 200433)
Abstract:
An integrated horizontal constructed wetland was integrated into an indoor recirculating aquaculture system for culturing obscure puffer (Takifugu obscurus). The aim of the study was to examine dynamic characteristics of NH4+-N, NO2--N, NO3--N, TSS, and COD during the treatment of integrated horizontal constructed wetland under the condition of brackish water (7.4-7.6, salinity). The mean removal efficiency of NH4+-N, NO2--N, NO3--N, TSS, and COD was 66.37%, 97.68%, 7.63%, 80.39%, and 16.50%, respectively, during recirculation process. According to each characteristic dynamic curve, a model was set up as follows: CL=C0 ·exp(K1L2+K2L+K3).
Key words:  brackish water  constructed wetland  nitrogen  organic matter  dynamic feature

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