机构地区: 重庆大学资源及环境科学学院
出 处: 《中国给水排水》 2007年第13期56-59,共4页
摘 要: 采用上流式厌氧污泥床(UASB)处理垃圾渗滤液,通过试验研究了UASB反应器处理垃圾渗滤液的启动时间、最大容积负荷、颗粒污泥的产生过程、对碱度的要求及微量元素对运行的影响。试验结果表明:启动80 d左右可在反应器底部出现微小颗粒状污泥,启动阶段共82 d;最大容积负荷控制在5 kgCOD/(m3.d)较为合理;垃圾渗滤液能保证厌氧过程的碱度需要,处理过程不必投加药剂,但需投加微量元素Fe、Ni、Co以使对COD的去除率稳步提高到50%。 The upflow anaerobic sludge blanket (UASB) was used to treat municipal landfill leachate. The influences of start-up time, maximum volume loading, granular sludge production process, alkalinity requirement and trace elements on the treatment of landfill leachate by UASB reactor were investigated. The experiment results show that anaerobic granular sludge appears on the bottom of the UASB reactor on the 80^th operational day. The start-up period is 82 days. It is reasonable to control the maximum volume loading at 5 kgCOD/(m^3 · d). The alkalinity in landfill leachate can meet the requirement for the anaerobic process while additional trace elements like Fe, Ni and Co are needed to achieve 50% COD removal efficiency.
关 键 词: 上流式厌氧污泥床 垃圾渗滤液 容积负荷 碱度 微量元素
领 域: [环境科学与工程]