微波诱导活性炭催化降解水中灭多威的方法研究  

A Method of Microwave-induced Degradation of Methomyl in Water Catalyzed by Activated Carbon

作　　者：张洪卫 刘丹妮[2] 王丽涛[2] 景逵[2] 张丰秋[2] 郜炜[2] 张朝红[2] 

机构地区：[1]铁岭县疾病预防控制中心,辽宁铁岭112000 [2]辽宁大学环境学院,沈阳110036

出　　处：《现代农药》2012年第4期23-27,共5页MODERN AGROCHEMICALS

基　　金：辽宁省教育厅自然科学基金(L2010156)

摘　　要：建立了一种快速有效地降解水体中杀虫剂灭多威的方法。采用微波诱导活性炭(MW/AC)催化技术对水体中灭多威的降解进行了研究。考察了微波照射时间、溶液初始浓度、催化剂用量和溶液酸度对灭多威降解的影响。对总体积25 mL、质量浓度50 mg/L的灭多威溶液,加入活性炭1.6g/L时,使用功率750 W、频率2 450 MHz的微波照射3.0 min,则灭多威降解率达84.11%。适当提高活性炭加入量至2.4 g/L,降解率即可达100%。MW/AC降解灭多威这一方法具有降解效率高、降解速度快、成本低、没有中间产物生成和无二次污染等优点,适合于灭多威废水的处理。A kind of method of rapid and effective degradation of the insecticide methomyl in water was established.Microwave-induced degradation catalyzed by activated carbon technology（MW/AC） was used to degrade methomyl in the solution.The effects of MW irradiation time,methomyl initial concentration,catalyst dose and solution acidity on the degradation were assessed.The degradation ratio reached 84.11% for 25 mL solution with 50 mg/L methomyl under 1.6 g/L AC dose,3.0 min MW irradiation,750 W MW power and 2450 MHz frequency.The degradation ratio could reach 100% by appropriate increase of the AC dose up to 2.4 g/L.The degradation method of methomyl using MW/AC has some advantages including high degradation efficiency,rapid degradation rate,low cost,no intermediates and no secondary pollution.It showed that the method was suitable for treating HHmethomylHH waste water.

关 键 词：灭多威 降解 微波 活性炭 方法 

分 类 号：TQ450.9[化学工程—农药化工] X703.1[环境科学与工程—环境工程]