降解水体中六六六低温复合菌的筛选  

Selection of Mixed Microorganisms at Low Temperature for Degrading Hexachlorocyclohexane in Wastewater

作　　者：张春玲[1] 张兰英[1] 张春英[2] 岳建伟[1] 李桂珠[3] 

机构地区：[1]吉林大学环境与资源学院,长春130061 [2]福建农林大学林学院,福州350002 [3]吉林农业工程职业技术学院,吉林省公主岭136100

出　　处：《吉林大学学报（理学版）》2007年第6期1039-1042,共4页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:50478006);国家"973"计划项目基金(批准号:2004CB418505)

摘　　要：在低温条件(≤9℃)下,对实验室已有降解有机污染物的12种菌进行对比实验,筛选出3种降解六六六的有效菌,同时利用正交试验确定了3种单菌的最佳降解条件,并在同一条件(pH=6.5,碳氮源为0.8 g/L NH4Cl和0.6 g/L KH2PO4)下,将驯化后的3种单菌按C32和C33组合,进行复合菌的降解效果实验.结果表明,C33组合后的复合菌对六六六的降解效率均高于单菌和C32组合后的复合菌,且最高降解率发生在1号菌、2号菌和3号菌的投加量之比为1∶5∶3时,达到63.27%.At a low temperature （ ≤9 ℃）, comparison experiments of 12 original strains of degrading organic pollutants were made in the laboratory. Three strains which can degrade BHC effectively were screened out, moreover, the optimal d Furthermore, under the egradation conditions of the three strains were got though the orthogonal experiments. same degradation conditions （ pH = 6. 5, 0.8 g/L NH4Cl, 0. 6 g/L KH2PO4 ）, degradation experiments were carried out by mixing the three strains, which were domesticated, in C3^2 and C33 ways, and the result shows that the C33 mixed strains had higher degradation rate of BHC than each of the three strains and the C3^2 mixed strains. The highest degradation rate was got when the incubation amounts of 1st stain, 2nd stain and 3rd were at the ratio of 1 ： 5 ： 3, which was 63.27%.

关 键 词：低温降解 六六六 复合菌 

分 类 号：X506[环境科学与工程—环境工程]