膜生物反应器处理啤酒废水的过程  

Treatment Process of Brewery Wastewater by Submerged MBR

作　　者：宋晓丽[1] 黄年华[1] 邵伟[1] 钟璟[1] 

机构地区：[1]江苏工业学院化学化工学院,江苏常州213164

出　　处：《江苏工业学院学报》2008年第4期48-52,共5页Journal of Jiangsu Polytechnic University

基　　金：江苏省精细化工重点实验室;国家自然科学基金资助项目(20406007)

摘　　要：在膜生物反应器(MBR)的使用过程中,水力停留时间(HRT)、溶解氧(DO)、污泥负荷等操作条件和膜污染程度直接关系到MBR的性能和使用寿命,对过程是否能够工业化起到关键的作用。针对浸没式中空纤维膜生物反应器处理啤酒废水的过程,考察了HRT、DO和污泥负荷等对处理效果的影响。根据实验结果,从达标排放和节省能耗角度考虑,确定HRT8 h,DO 3 mg/L,污泥负荷0.3-0.4 kg/(kg.d)为适宜条件。实验运行过程中,定期对膜进行反冲洗和化学清洗,通过采用先反冲洗,再酸洗,然后碱洗,最后NaClO溶液清洗的方法对膜进行清洗,效果明显,清洗后膜的纯水通量恢复到新膜的75%以上,满足继续使用的条件。The submerged Membrane Bioreactor （MBR） was used to treat the analog brewery wastewater. The effects of operation conditions, such as HRT, DO and sludge loading on the treatment were investigated. The treatment results and energy consumed in the treatment process were considered and , the optimum parameters were confirmed. HRT was 8 h, DO was 3 mg/L, and sludge loading rate was 0. 3-- 0.4 kg/ （kg ·d）. The periodical backwashing and chemical cleaning were used to recover the permeate flux of membranes and decrease the membrane fouling. The effective chemical cleaning agents include 0. 05 mol/L H2SO4 , 0. 5% NaOH and 2% NaC10 solution, and the permeate flux of membranes was restored to more than 75% of the new one. The cleaned membrane can be used in the following MBR treatment process.

关 键 词：浸没式膜生物反应器 啤酒废水 过程参数 膜污染 膜再生 

分 类 号：X703.3[环境科学与工程—环境工程]