UBF厌氧反应器常温下处理低浓度啤酒废水的研究

THE TREATMENT OF LOW CONCENTRATION BREWERY BY-PRODUCT WASTEWATER BY ANAEROBIC REACTOR UBF AT AMBIENT TEMPERATURE

本文对新型高效厌氧反应器(UBF)在常温下处理低COD 浓度(S_0=500±50mg/l)啤酒废水的特性进行了研究。探讨了HRT,有机容积负荷,出流SS,污泥产率及积累系数等参数对去除效果的影响。论述了滤层的截留能力和去除效率。试验表明:水力停留时间(HRT)为19—5 h,夏季处理效率93.3%—82.5%,秋季为91.8%—63%,冬季为78%—33.3%。

A new kind and highly efficient anaerobic wastewater treatment reac-tor,the up-flow anaerobic blanket-filter (UBF),was used to treat the lowCOD concentration (S_0=500+50 mg/L) brewery by-product at ambient tem-perature.Its characteristics were studied in this article.The influence ofHRT,organic volumetric loading,effluent SS,sludge yield coefficient andaccumulation yield coefficient on treatment efficiency was explored.Andthe capacity of retaining activated sludge and treatment,efficiency offilter in the realtor were also surveyed.The test shows that when hydra-ulic retention time (HRT) is 19 to 5 hours,the treatment efficiency insummer is 93.3% to 82.5%,and in autumn,91.8% to 63%,and in winter78% to 33.3% respectively.