电极-生物膜前后置条件下的反硝化脱氮性能比较  

COMPARISON OF DENITRIFYING PERFORMANCE BETWEEN PRE-POSITIONED AND POST-POSITIONED ELECTRODE-BIOFILM

作　　者：杨群[1] 杨昌柱[1] 陈建平[1] 胡传侠[1] 

机构地区：[1]华中科技大学环境科学与工程学院,湖北武汉430074

出　　处：《水处理技术》2007年第11期31-33,41,共4页Technology of Water Treatment

基　　金：武汉市"十五"科技攻关专项计划项目(20046004069-05)

摘　　要：进行了电极-生物膜前置和后置条件下去除污水中COD和硝酸盐氮的对比试验。结果表明:在前置或后置条件下,电极-生物膜对COD的去除能力均一般;电极-生物膜后置时,对污水中的硝酸盐氮有较好的去除效果,与前置时相比去除率可提高28.6%。并从微生物营养的角度对电极-生物膜前置和后置条件下的反硝化性能进行了详细分析和比较。A comparison test of COD and nitrate removals under the conditons ofpre-and post-electrode-biofilm was conducted. The results showed that, when being prepositioned or postpositioned electrode-biofilm,COD removal rate was of common level;when being postpositioned electrode-biofilm, nitrate removal rate in the sewage had better effect, and in comparison with nitrate removal rate when being prepositioned, it could be raised by 28.6%, According to the test results, the present authors carried out analysis and comparison for denitrification performance under the condition of prepositioned and postpositioned electrode-biofilm, from the angle of microorganism nutrition.

关 键 词：反硝化细菌的营养类型 电极-生物膜法 前置型和后置型工艺流程 硝酸盐氮和COD去除率 

分 类 号：X703.1[环境科学与工程—环境工程]