A/O-MBR工艺处理养猪沼液的研究  

A/O-MBR process for treating digested piggery wastewater

作　　者：赵明[1] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《工业水处理》2012年第8期27-29,共3页Industrial Water Treatment

基　　金：863国家高技术研究发展计划重点项目(2009AA062902);上海市曙光学者基金项目(10GG12)

摘　　要：以化学絮凝作为预处理,采用A/O-MBR工艺处理养猪沼液。结果表明,化学絮凝对溶解性COD和TP的平均去除率分别为18.9%和61.3%;A/O-MBR在溶解氧为3 mg/L、MLSS为4～5 g/L的条件下,出水溶解性COD和氨氮的去除效果较好,平均去除率分别达到70.6%和99.4%;而TN的去除率则低于30%。启动期间,当污染物浓度增加时跨膜压差迅速增加导致膜污染加剧,而当系统稳定运行时,膜污染趋势大大减缓。The A/O-MBR process has been applied to the treatment of digested piggery wastewater ,for which chemical flocculation is used as pre-treatment. The results show that the average removing rates of soluble COD and TP by chemical flocculation are 18.9% and 61.3%, respectively. In the A/O-MBR process, the removing efficiencies of effluent soluble COD and ammonia-nitrogen are pretty good,under the following conditions： the DO is 3 mg/L and MLSS 4-5 g/L. Their average removing rates are 70.6% and 99.4% ,respectively. But ,the TN removing rate is lower than 30%. During the start-up period, the transmembrane pressure difference increases rapidly with the increase of pollutant concentration, resulting in rapid membrane fouling. However,when the system runs steadily ,the trend of membrane fouling gets much slower.

关 键 词：膜生物反应器 养猪沼液 膜污染 

分 类 号：X703.1[环境科学与工程—环境工程]