摘要
工程运行试验研究EC厌氧反应器处理啤酒废水启动过程中的运行效能、稳定性以及内部的污泥分布情况,分析颗粒污泥形成的关键因素.运行第95d,进水有机负荷达到8.5kg/(m3·d),COD去除率达80%,出水COD低于400mg/L;在系统1.2m和4m处污泥中均出现粒径为0.5～1.0mm左右的颗粒污泥.结果表明,EC厌氧反应器处理低质量浓度、大流量的啤酒废水采用间歇-连续快速启动方式是可行的,并且上升流速在2.5～5.0m/h有利于颗粒污泥的快速形成.研究证实EC厌氧反应器处理啤酒废水能够实现稳定、高效地启动运行.
The performance efficiency,stability and inner sludge distribution were investigated in the operation of the full-scale EC reactor for brewing wastewater treatment and the key factor to the formation of anaerobic granular sludge was analyzed,which provides the references for the start-up and operation of EC reactor.After operation for 95 d,the influent organic load and removal efficiency were 8.5 kg/（m3·d） and 80% respectively,and the effluent COD was lower than 400 mg/L.Meantime,the granular sludge with size of 0.5-1.0 mm was observed from the heights of 1.2 and 4 m in the EC reactor.The results demonstrate that EC anaerobic reactor using the intermittent-continuous start-up mode for treating the low COD concentration and high flow of brewing wastewater is feasible and the upflow velocity in range of 2.5-5 m/h is helpful to form granular sludge quickly.The experiment validates that the EC anaerobic reactor can start up stably and efficiently in the brewing wastewater treatment.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2010年第4期580-583,共4页
Journal of Harbin Institute of Technology
基金
国家高技术研究发展计划资助项目(2007AA06A411)
关键词
外循环
厌氧反应器
快速启动
泥水回流
啤酒废水
external circulation
anaerobic reactor
quick start-up
sludge-water circulation
brewing wastewater
