制糖工艺废水处理中好氧反硝化细菌的分离鉴定及其脱氮特性研究  

Identification and Nitrogen Removal Characteristics of Aerobic Denitrification Strain from Wastewater of Sugar Manufacturing

作　　者：王晨[1] 姜述君[1] 董士嘉[2] 

机构地区：[1]黑龙江八一农垦大学生命科学技术学院,黑龙江大庆163000 [2]东北农业大学农学院,黑龙江哈尔滨150030

出　　处：《黑龙江农业科学》2015年第5期122-125,共4页Heilongjiang Agricultural Sciences

摘　　要：为进一步改善制糖污水的治理方法,从制糖废水的活性污泥中分离出一株具有好氧反硝化作用的细菌,研究了不同pH、温度和C/N比对其反硝化速率的影响。结果表明:分离出的菌株为球形菌,革兰氏染色为阳性,菌落颜色为土黄色,结合生理生化等特性,鉴定为海球菌属(Marinococcus sp.)。该菌株反硝化反应的最适宜pH7.5、温度为35℃左右,反硝化速率可达到75%;菌株最适C/N为6,其反硝化速率可达到85%。In order to further improve sewage disposal method, an aerobic denitrification strain was isolated from active sludge of wastewater pool of sugar manufacturing, the effect of pH,temperature and C/N on the denitrification rate of this strain was analyzed. The results showed that this strain was spherical bacteria,Gram-posi- tive and colony with yellow. According to the morphological and physiological-biochemical characteristic, this strain was identified as Marinococcus sp.. The optimum pH of denitrification was 7.5 and the optimum temperature was about 35℃, denitrification rate of strain was more than 85 % under this condition. The optimum C/N was 6 ,and denitrification rate of strain was more than 85 ℃.

关 键 词：好氧反硝化细菌 分离鉴定 脱氮特性 

分 类 号：X792[环境科学与工程—环境工程]