废水中有机磷乐果降解菌的筛选及作用条件  

Selection and Operation Conditions of Degradation Bacteria for Organophosphorus Rogor in Wastewater

作　　者：乔楠[1] 郭威[2] 张金榜[2] 张静[2] 于大禹[2] 

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012 [2]东北电力大学化学工程学院,吉林吉林132012

出　　处：《东北电力大学学报》2008年第2期57-59,共3页Journal of Northeast Electric Power University

摘　　要：由于乐果等有机磷农药的大量使用引起的土壤及水环境污染问题正威胁着生态安全及人类健康。微生物法降解有机磷农药因其经济有效性近年来成为研究的热点。实验采用室内培养方法,从吉化农药厂废水污泥中分离筛选出一株能在高浓度农药乐果中生长的细菌菌株。结果表明,该菌株最适生长pH值为7.0左右,具有相对稳定的pH值生长范围(pH6.0～8.0),最适生长温度为30℃,3天后生长进入稳定期;得到的菌株对高浓度的乐果具有一定耐受性,在pH 7.0、30℃温度条件下,1天内就可对乐果具有好的降解效果。Soil and water environment contamination problems which results from a great deal of using of Organophosphorus pesticidesuch as Rogor are threatening ecology safety and people＇s health. Microbial degradation for Organophosphorus pesticide has become a research topic recently because of its economy and efficiency. A bacteria strain with good effective degradation for Rogor was got. The tests prove that the bacteria grow very, well during 3 d in the conditions of pH7.0,30 ℃ ;and the bacteria could bear high concentration Rogor, in only 1 d it had obvious effects on the removal of Rogor under conditions of pH7.0,30 ℃.

关 键 词：乐果 菌株 降解 

分 类 号：X592[环境科学与工程—环境工程]