三株细菌降解苯酚特性的比较研究  

Comparison of Phenol Degradation Characteristic of Three Bacteria Strains

作　　者：张苏珍[1] 温洪宇[1] 郑曦[1] 高霞莉[1] 胡斌[1] 

机构地区：[1]徐州师范大学生命科学学院,江苏徐州221116

出　　处：《江西农业学报》2010年第7期132-133,138,共3页Acta Agriculturae Jiangxi

基　　金：江苏省高校自然科学基础研究项目(06KJD180180);徐州师范大学校级课题(09XLR13)

摘　　要：从焦化厂、农药厂与药厂废水中筛选出3株苯酚降解细菌,分别编号为JHC-2、NYC-2与YC-2。分别采用摇瓶培养与模拟SBR方法比较3株细菌处理苯酚废水的效率,结果表明摇床培养条件为35℃与150r/min,苯酚浓度为100mg/L,经JHC-2、NYC-2、YC-2处理3h后,CODcr的去除率分别为30.52%、71.19%、65.89%。SBR的处理条件为28℃,苯酚初始浓度为100mg/L,HRT为16h,JHC-2、NYC-2、YC-2对CODcr的去除率分别为52.11%、76.69%、70.26%。3株细菌处理苯酚废水效率比较表明,NYC-2在3株细菌中降解苯酚能力最强,通过对其细胞形态、生理生化特性研究,初步确定该菌株属于假单胞杆菌属。Three phenol - degrading bacteria strains numbered as JHC - 2, NYC - 2 and YC - 2 were screened from the wastewater of eoking plant, pesticide factory and pharmaceutical factory, respectively. They were cultivated in shakers （150 r/min） for 3 hours at 35 ℃, when the initial phenol concentration was 100 rag/L, the removal rate of CODe, by JHC -2, NYC -2 and YC - 2 was 30.52%, 71.19% and 65.89%, respectively. Simulative SBR treatment was used to compare the removal efficiency of phenol in wastewater by the three bacteria strains, when the temperature was at 28 ℃, the initial phenol concentration was 100 mg/L, HRT was 16 h, the removal rate of CODcr by JHC -2, NYC -2 and YC -2 was 52.11%, 76.69% and 70.26% respectively. The above results showed that NYC -2 had the strongest degradation capability for phenol among the three bacteria strains. NYC -2 was identi- fied according to cell shape, physiological and biochemical characteristics, and the results showed that it belonged to Pseudomonas.

关 键 词：苯酚 SBR CODCR 

分 类 号：X172[环境科学与工程—环境科学]