【作者】 岳春雷； 常杰； 葛滢； 李贺鹏；

【Author】 Yue Chunlei;Chang Jie;Ge Ying;Li Hepeng;Zhejiang Forestry Academy;College of life Science,Zhejiang University;

【机构】 浙江省林业科学研究院； 浙江大学生命科学学院；

【摘要】 人工湿地已被广泛用于处理各种类型的废水。本文研究了人工湿地基质中磷酸酶、脲酶和蛋白酶活性的空间分布规律及与生活污水净化效果之间的关系。磷酸酶和脲酶的活性随基质深度的增加而降低,蛋白酶活性在基质上层最高,下层次之,中层最低;湿地下行池基质磷酸酶、脲酶和蛋白酶活性大于上行池。磷酸酶活性与污水总磷、COD_Cr、BOD₅去除率正相关;脲酶与总氮的去除率正相关;蛋白酶与总氮、总磷、COD_Cr、BOD₅去除率没有相关性。该研究为利用酶活性作为评价人工湿地净化效果的指标提供了理论依据。更多还原

【Abstract】 The spatial distribution of activities of phosphatase,urease and proteinase in the substrate of the constructed wetland and its relationship with purification efficiency of wastewater were studied.With increasing the substrate depth,phosphatase and urease activities decreased.Proteinase activity in substrate was in the order that upper layer > lower layer > middle layer.Phosphatase,urease and proteinase activities in up-flow chamber were higher than those in down- flow chamber.Phosphatase activity is positively correlated to the removal rates of total nitrogen,total phosphorus,CODcr and BOD5;Urease activity was positively correlated to total nitrogen;Proteinase activity was not significantly correlated to the removal rates of total nitrogen,total phosphrous,CODcr,and BOD5.The research offered the theoretical basis for using substrate enzymatic activity as evaluation index of purification efficiency.更多还原