UASB工艺常温处理木薯加工废水  

BIOTREATMENT OF CASSAVA-PROCESS WASTEWATER USING UASB

作　　者：郑平[1] 胡宝兰[1] Deffu Soufo Herve Joe 

机构地区：[1]浙江大学环境工程系,杭州310029 [2]雅温得第一大学

出　　处：《太阳能学报》2002年第6期774-777,共4页Acta Energiae Solaris Sinica

摘　　要：为了控制喀麦隆木薯加工废水的污染并回收沼气 ,选用上流式厌氧污泥床反应器 (UASB) ,进行了常温厌氧处理木薯加工废水的试验。结果表明 :采用UASB工艺处理COD浓度为 14190mg/L的木薯加工废水 ,COD去除率可达90 %以上 ,容积COD负荷达 6.81g/L·d ,容积沼气产率 3 .2 0L/L·d。在实用中 ,进水COD浓度宜控制在 140 0 0mg/L左右 ;容积COD负荷宜控制在 7.0 0 g/L·d左右 ;水力停留时间宜控制在 2d。An upflow anaerobic sludge blanket (UASB) reactor was started up and operated to investigate its suitability for the treatment of wastewater from cassava process at room temperature. The results showed that the local temperature was relatively high and stable enough to successfully run the reactor. When volumetric COD loading rates of up to 7.00 g/L·d were applied, COD removal of greater than 90% and volumetric biogas production of 2.60～3.95 L/L·d were achieved. During routine operation, the influent COD concentration should be kept lower than around 14,000 mg/L, HRT longer than 0.7 day and COD loading rate lower than 7.00 g/L·d. The aerobic activated sludge could be used as an inoculum for anaerobic reactor.

关 键 词：UASB工艺 常温处理 木薯 废水 厌氧处理 

分 类 号：X712[环境科学与工程—环境工程] X703