应用于糖果生产废水处理的两段厌氧工艺研究  

A two-step anaerobic reactor used in the treatment of confectionery industry wastewater

作　　者：崔清洁[1] 赵大传[1] 倪寿清[1] 朱艳秋[2] 于乐锋 

机构地区：[1]山东大学环境科学与工程学院,山东济南250100 [2]山东省水利勘测设计院,山东济南250013 [3]日照市环保局东港分局,山东日照276800

出　　处：《山东大学学报（理学版）》2007年第5期55-58,共4页Journal of Shandong University(Natural Science)

摘　　要：设计了两段厌氧处理系统来处理糖果废水,该系统由升流式厌氧污泥床（UASB）和降流式厌氧生物滤池（DFAF）组成.UASB和DFAF反应器分别在35℃和室温（22～25℃）下运行,系统水力停留时间是2.4 d.在有机负荷12.5 kgCOD/m^3.d时系统COD去除率为98%,并且在高有机负荷情况下UASB仍能获得较好的处理效果.通过回流可以调节UASB反应器进水COD质量浓度保持在30 g/L以下.系统DFAF反应器出水COD质量浓度维持在400 mg/L以下,并能有效缓冲UASB反应器出水的波动.A two-step anaerobic reactor treatment system was tested for its ability to remove organic carbon from confectionery industry wastewater. The system consists of an up-flow anaerobic sludge blanket （UASB） operated at 35 ℃, which is followed by a down-flow anaerobic filter （DFAF） operated at ambient temperature （22 ～ 25 ℃）. The system has a total hydraulic retention time of 2.4 days. An overall COD treatment efficiency of 98% was observed at the system organic loading rate of 12.5 kgCOD/ m^3·d, which worked extremely well at high organic loadings. Effluent recycle enables the UASB to operate with irdluent COD concentrations up to 50 g/L. DFAF maintains effluent COD concentrations below 400 mg/L, and effectively buffers fluctuations in the effluent of the UASB.

关 键 词：糖果废水 升流式厌氧污泥床 降流式厌氧生物滤池 有机负荷 

分 类 号：X703.1[环境科学与工程—环境工程]