污水回用时pH、COD对细菌生长及杀菌性能的影响  

Effects of pH and COD on bacteria growth and bactericidal performance while wastewater is being reused

作　　者：郦和生[1] 张春原[1] 王吉龙[1] 郭红卫[1] 

机构地区：[1]北京燕山石油化工公司研究院,北京102500

出　　处：《工业水处理》2002年第5期45-46,52,共3页Industrial Water Treatment

摘　　要：研究了污水回用于循环冷却水时pH、COD对细菌生长及杀菌性能的影响。结果表明 ,pH值在酸性范围内有利于铁细菌生长 ,对异养菌生长没有影响 ;pH值变化对优氯净的杀菌性能没有影响 ,而异噻唑啉酮不适于牛口峪污水回用时的杀菌。高COD有利于细菌的生长 ,但对杀菌剂的杀菌性能没有影响 ,相反与一些杀菌剂有一定的协同效应。Effects of various pH and COD on bacteria growth and bactericidal performance while Niukouyu reservoir wastewater is being reused as cooling water have been studied. The results show that pH<7 facilitates iron bacteria growth, and has no effects to the growth of bacteria and sulfate reducing bacteria. Different pH values have no effects to dichloro iso cyanuric acid sodium salt and dodecyl dimethyl benzyl ammonium chloride's bactericidal performance. Isothiazolin isn't suitable for bactericidal performance while Niukouyu wastewater is being reused. High COD could facilitate bacteria growth, and also promote biocide's bactericidal performance.

关 键 词：污水回用 COD 细菌生长 杀菌性能 PH值 废水处理 

分 类 号：X703[环境科学与工程—环境工程]