厌氧膜生物反应器在食品废水处理中的应用研究  

Treatment of food processing wastewater with anaerobic membrane bioreactor

作　　者：陆晓峰[1] 周保昌[1] 沈飞[2] 李景烨[1] 卞晓锴[1] 刘忠英[1] 施柳青[1] 侯铮迟[1] 邓波[1] 

机构地区：[1]中国科学院上海应用物理研究所,上海201800 [2]中国科学院过程工程研究所生化工程国家重点实验室,北京100190

出　　处：《膜科学与技术》2011年第3期234-238,共5页Membrane Science and Technology

基　　金：上海市科技攻关项目(08231200300)

摘　　要：分别采用小试规模(50 L/d)外置错流管式厌氧膜生物反应器和中试规模(20 t/d)浸没式厌氧旋转膜生物反应器进行了食品厂废水的处理实验研究.结果表明,加入超滤膜单元提高了厌氧系统的总有机物去除率及甲烷产量,使系统出水水质更加稳定;外置错流式超滤膜随运行时间的延长通量明显下降,而旋转式超滤膜可通过膜片旋转速度提高和保持膜通量;浸没式旋转膜组件的运行能耗较外置管式膜组件至少降低30%;但不同形式的厌氧膜生物反应器对氨氮和总磷去除能力有限,需进一步处理.A small scale （50 L/d） external tubular cross-flow anaerobic membrane bioreactor and a pilot scale （20 t/d） submerged anaerobic rotating membrane bioreactor were used to treat food processing wastewater respectively. When ultrafiltration units were added into anaerobic bioreactor, the total organic matter removal and the methane production were both increased, and the stability of system effluent quality was also improved. Membrane fluxes were declined significantly with time in the external crossflow anaerobic bioreactor, but different results that membrane fluxes could be maintained were obtained while rotating membrane was used. Compared to the cross-flow anaerobic membrane bioreactor, the submerged anaerobic rotating membrane bioreactor could save energy at least 30%. It should be noted that, ammonia nitrogen and phosphorus removal rates were not obviously during the both anaerobic membrane bioreactors, and it resulted in a requirement of further treatment for the effluent to meet the sewage discharge standard.

关 键 词：厌氧膜生物反应器 管式膜 旋转膜 超滤膜 

分 类 号：X703[环境科学与工程—环境工程]