前置反硝化曝气生物滤池调试运行  

Debugging Operation of Pre-denitrification Biological Aerated Filter

作　　者：田璐 王琳[1] TIAN Lu;WANG Lin(School of Environmental Science and Engineering,Ocean University of China,Qingdao 266000,China)

机构地区：[1]中国海洋大学环境科学与工程学院

出　　处：《水处理技术》2019年第12期129-132,共4页Technology of Water Treatment

基　　金：济南市社会民生重大专项（201704315）;山东省重点研发计划项目（2016GSF117018）;国家重点研发计划重点专项（2018YFC0408004）

摘　　要：对采用前置反硝化滤池系统升级改造的麦岛污水处理厂的调试运行进行总结,确定了适宜的回流体积比约为350%,过高的回流比会抑制反硝化反应;优化的外加碳源乙酸钠溶液的质量分数为25%、投加量约为900 mg/L,运行中过量乙酸钠会对出水COD与BOD5造成不利影响。在优化条件下,系统在冬季运行水温为17℃时,TN去除率约为72%,出水的TN的质量浓度稳定小于15 mg/L,达到了设计要求和城市排水的要求;其他指标也达到了GB18918-2002的一级A标准。The debugging operation of Maidao wastewater treatment plant upgrading by pre-denitrification biological aerated filter was summarized, the appropriate reflux volume ratio was about 350%, the exorbitant reflux ratio could inhibited the denitrification reaction. The optimum mass fraction and dosage of additional carbon resources sodium acetate solution was 25% and 900 mg/L respectively, the excess sodium acetate was unfavorable to effluent COD and BOD5 during the operation. Under the optimum conditions, the TN removal rate was about 72% and the TN mass concentration in effluent was less than 15 mg/L, which met the requirement of design and municipal drainage, and other water quality indexes met the first level A standard of GB18918-2002.

关 键 词：曝气生物滤池 前置反硝化 调试运行 脱氮 

分 类 号：X703」[环境科学与工程—环境工程]