复合人工湿地系统酶活性及其与污染物净化效果的相关性  

THE ENZYME ACTIVITIES AND ITS CORRELATION WITH THE PURIFICATION OF POLLUTANTS IN INTEGRATED CONSTRUCTED WETLAND

作　　者：吴属连[1] 刘欢[1] 崔理华[2] 

机构地区：[1]深圳市深港产学研环保工程技术股份有限公司,广东深圳518057 [2]华南农业大学资源环境学院环境科学与工程系,广州510642

出　　处：《环境工程》2015年第1期15-18,61,共5页Environmental Engineering

摘　　要：构建目前广泛应用的复合垂直流人工湿地系统,从酶学角度探讨湿地主要污染物净化机理。通过对下行流-上行流复合人工湿地和下行流-下行流复合人工湿地2套系统磷酸酶、脲酶活性的测定发现,磷酸酶、脲酶活性随系统流程逐级降低,一级池磷酸酶、脲酶活性较高且日变化较大,同一一级池中磷酸酶、脲酶活性呈显著相关性。系统脲酶活性和TN去除率相关性显著,磷酸酶活性与TP去除率不存在显著相关性,磷酸酶、脲酶活性与COD去除率相关性亦不显著。In this study,two integrated vertical flow wetlands were constructed to research the pollutant removal principle in the perspective of enzymology. The activities of phosphatase and urease were measured in a down flow-up flow and a down flow-down flow integrated constructed wetland system. The results were as follows: The activities of phosphatase and urease tended to decrease along the flow. In both systems' first pool,the activities of the phosphatase and urease kept in a high level and varied obviously daily. In every system's first pool,the activities of the phosphatase and urease had significant correlation.The urease activity had a notable correlation with the TN removal efficiency while the phosphatase activity did not. The removal efficiency of COD had relativity with neither phosphatase nor urease.

关 键 词：复合人工湿地 磷酸酶 脲酶 去除率 相关性 

分 类 号：X703.1[环境科学与工程—环境工程]