低温耐冷菌在寒冷地区生活污水处理中的应用  

Study on the psychrotrophilic bacteria for treatment of cryogenic domestic sewage

作　　者：李亚选[1] 贠英伟[2] 焦瑞虎[1] 张晓玲[3] 姜安玺[4] 

机构地区：[1]广东省建筑设计研究院市政分院,广东广州510010 [2]洛阳工业高等专科学校建筑工程系,河南洛阳471003 [3]中国核动力研究设计院,四川成都610041 [4]哈尔滨工业大学市政环境学院,黑龙江哈尔滨150090

出　　处：《应用科技》2007年第4期63-66,共4页Applied Science and Technology

基　　金：黑龙江省自然科学基金(E01-22)资助项目;哈尔滨市科技攻关项目(2003AA4CS122);北京市水质科学与水环境恢复工程重点实验室资助项目

摘　　要：针对当前寒冷地区生活污水处理现状及普通活性污泥在不同温度条件下COD降解性能、沉降性能的变化,从微生物学角度分析并验证了活性污泥中始终存在有低温耐冷菌,并通过试验证明低温耐冷菌在低温环境条件下所具有的相对优势.试验结果表明:在中温环境条件下低温耐冷菌的COD去除率虽不及中温菌,但二者相差不到10%,而在低温环境条件下低温耐冷菌的COD去除率却高于中温菌COD去除率63.67%;从而证明低温耐冷菌对寒冷地区污水治理领域具有广阔的应用前景.Based on current situation of treatment of domestic sewage in cold area and changes of degradative and sedimentary properties of COD at different temperatures, the psychrotrophilic bacteria was proved to exist in active sludge from the angle of microbiology. The psychtrophilic bacteria possesses particular dominance under cryogenic environment, which is also verified by experiment. The experimental results indicate that the removal rate of COD for psychrotrophilic bacteria is 10 percent lower than that of mesophilic bacteric at normal temperature, but at low temperature, the COD removal rate of the former is 63.67 percent higher than that of the latter. Therefore, the psychrotrophilic bacteria has great and bright potential in waste water treatment in cold area.

关 键 词：低温 耐冷菌 生活污水 水处理 

分 类 号：X703.1[环境科学与工程—环境工程]