固定化农药降解酶对受污染水体的净化作用  

Effect of Immobilized Pesticide Degrading-enzyme on the Purification of Polluted Water

作　　者：林淦[1] 韩萍[1] 吴传兵[1] 

机构地区：[1]襄樊学院化学与生物科学系,湖北襄樊441053

出　　处：《安徽农业科学》2006年第17期4371-4372,共2页Journal of Anhui Agricultural Sciences

基　　金：湖北省教育厅科学技术研究项目(Q200625003);襄樊学院基金项目(KJ04043)

摘　　要：以海藻酸钙固定化联苯菊酯降解酶液,比较了固定化酶与游离酶对联苯菊酯的降解作用效果。结果表明:理想条件下,固定化酶的活性相当于游离酶活性的75%。温度、pH值、Mg2+等条件的变化对固定化酶活性的影响较游离酶小;利用2 g固定化酶对受50 mg/L联苯菊酯污染水体进行处理,3 d后检测,水体中联苯菊酯的含量降低72%。Biphenthrin degrading-enzyme was immobilized by Ca-alginate. Degradation ability for biphenthrin was studied between immobilization enzyme and crude enzyme. The results showed that with optimal conditions, immobilized enzyme had 75 % vigor of crude enzyme. Temperature, pH and Mg^2＋ had lower influence on immobilized enzyme than that on crude enzyme. After the polluted water with 50 mg/L biphenthrin was treated with 2 grams immobilized enzyme after 3 days Biphenthrin remained 14 mg/L in water.

关 键 词：联苯菊酯 海藻酸钙 固定化酶 净化 

分 类 号：X171.5[环境科学与工程—环境科学]