短程反硝化菌种的筛选及条件选择的研究  

Study on Screen of Short-cut Denitrification Stains and Selection of Condition

作　　者：廖雪义[1] 蓝荣[1] 马光庭[2] 李献[2] 

机构地区：[1]襄樊学院化学与生物科学系,湖北襄樊441053 [2]广西大学农学院,南宁530005

出　　处：《工业安全与环保》2006年第1期20-22,共3页Industrial Safety and Environmental Protection

摘　　要：经对某实验室保存的反硝化混合菌液进行分离复壮，筛选到7株反硝化速率较高的菌株（编号为B06, B08, B15, B16, B19, B21）。经正交试验．选出短程反硝化的最佳作用条件。分离株B08在温度25—30℃，pH值7．0—8.0, NO2^-N质量浓度200mg/L，C／N1．4和厌氧条件下，反硝化8h，NO2^--N的去除率达到86．37％。Strains （B06,B08, B15, B16, B19, B21） with higher rate of denitrification are obtained after isolating and rejuvenating from mixed denitrifying bacteria conserved by labs. The orthogonal experiments are carried out for the selection of the optimal short-cut denitrification. Under the condition of temperature 25-30℃ ,initial pH value 7.0-8.0 , NO2^- -N concentration 200 mg/L, C/N ratio, 1, 4 and anareob, the removing rate of denitrifying 8 h and NO2^--N can reach 86.37%.

关 键 词：短程反硝化 菌种筛选 条件选择 水体富营养化 污水处理 含氮污水 

分 类 号：X703[环境科学与工程—环境工程]