A/O-MBR改进工艺处理干法腈纶废水的启动研究  

Starting-up Research of Improved A/O-MBR Technology for Treating Dry Acrylic Fiber Wastewater

作　　者：李长波[1] 赵国峥[1] 邱峰[1] 杨凤林[2] 徐晓晨[2] 

机构地区：[1]辽宁石油化工大学环境与生物工程学院,辽宁抚顺113001 [2]大连理工大学环境学院,辽宁大连116024

出　　处：《环境科学与技术》2014年第6期135-139,共5页Environmental Science & Technology

基　　金：国家水体污染控制与治理科技重大专项课题(2012ZX07202-002);中国石油天然气股份有限公司科学研究与技术开发项目(FSSH11B507)

摘　　要：采用A／O-MBR改进工艺处理干法腈纶废水，启动时间短，处理效果较好，同时对水质水量均具有较强的耐冲击性能。研究结果表明，反应器出水COD为300-400mg／L，去除率为65％-75％；出水氨氮小于5mg／L，去除率可达97％以上；出水总氮为40～50mg／L，去除率为60％-70％。但由于干法腈纶废水中含有大量的难降解有机物，导致出水COD和总氮含量仍然较高，膜污染较为严重，所以要实现对干法腈纶废水的有效治理，还需进一步探求物理化学技术对腈纶废水的高效预处理，以提高废水的可生化性。The improved A/O-MBR technology was used for the treatment of dry acrylic fiber wastewater,which has advantages of short start-up time,good treatment effect and strong impact resistance to water quality and quantity. Results showed that COD in the effluent was 300-400 mg/L, with removal rate as 65%-75%; effluent ammonia-nitrogen was less than 5 mg/L, with removal rate more than 97%; total-nitrogen was 40-50 mg/L, with removal rate up to 60%-70%. However, because of numerous refractory organics in dry acrylic fiber wastewater, COD and total-nitrogen concentrations of the reactor effluent were still high, membrane fouling was also serious. So in order to rernediate the dry acrylic wastewater pollution effectively, physical and chemical techniques for pretreatment were further needed to improve wastewater biodegradability.

关 键 词：A O—MBR 改进工艺 干法腈纶废水 培养驯化 膜污染 

分 类 号：X703.1[环境科学与工程—环境工程]