序批式膜生物反应器处理猪场沼液中氮的影响因素研究  

Study on the factors influencing the nitrogen removal from hogpen biogas slurry by sequencing batch biofilm reactor

作　　者：万金保[1,2] 章洪涛[1] 万莉[1] 吴永明[3] 

机构地区：[1]南昌大学环境与化学工程学院,江西南昌330031 [2]南昌大学鄱阳湖环境与资源利用教育部重点实验室,江西南昌330047 [3]江西省科学院能源研究所,江西南昌330029

出　　处：《环境污染与防治》2014年第10期43-46,共4页Environmental Pollution & Control

基　　金：十一五"国家科技支撑计划重点项目(No.2007BAB23C02);江西省教育厅科技落地计划项目"废水处理新工艺在规模化养猪场的运用

摘　　要：猪场沼液具有高氨氮、低碳氮比（C/N）和脱氮难度大等特点,实验采用序批式膜生物反应器进行处理。结果表明,为达到较好的脱氮效果,进水COD宜控制在800-1 000mg/L;NH3-N为800mg/L时不会抑制硝化反应,C/N越高脱氮效果越好,C/N从8下降到1时,TN去除率由82.2%下降为16.7%;pH为8.5时脱氮效果最佳;夏天（进水水温25℃）脱氮效果优于冬天（进水水温13℃）,TN去除率分别为93.13%、81.31%,进水水温在10-30℃时,进水水温越高脱氮效果越好。Hogpen biogas slurry is a kind of high ammonia and low C/N ratio wastewater which is difficult to be treated by conventional biochemical treatment methods.In this paper,the sequencing batch biofilm reactor was applied to treat hogpen biogas slurry,and the influencing factors were investigated.In order to achieve better denitrification efficiency,the appropriate treatment conditions were obtained as follow：influent COD ranged 800-1 000mg/L,influent NH3-N less than 800mg/L and solution pH was 8.5.Higher C/N ratio was good for nitrogen removal from hogpen biogas slurry,increasing the C/N ratio from 1to 8,the TN removal rate was increased from 16.7%to 82.2%correspondently.The denitrification performance of sequencing batch biofilm reactor was better in summer（25℃）than in winter（13℃）with the TN removal rate was 93.13%,81.31%respectively.In the temperature range of 10-30℃,the higher the influent temperature,the better the denitrification efficiency was.

关 键 词：序批式膜生物反应器 猪场沼液 脱氮 影响因素 

分 类 号：X713[环境科学与工程—环境工程]