两相厌氧处理湿式氧化后剩余污泥的研究  

Study on two-phase anaerobic treatment of waste activated sludge after wet air oxidation treatment

作　　者：杨晓奕[1] 蒋展鹏[1] 

机构地区：[1]清华大学环境科学与工程系,北京100084

出　　处：《给水排水》2005年第1期54-58,共5页Water & Wastewater Engineering

摘　　要：针对工业废水剩余污泥可生化性差、处理费用高等问题，以石油化工废水剩余污泥为研究对象，进行了湿式氧化后两相厌氧处理的研究。即剩余污泥经温和的湿式氧化预处理后，有机物从微生物体内释放出来并转移到液相，上清液采用两相厌氧处理。系统研究了两相厌氧中 COD_(Cr)、产气量、BOD_5、N、SO_4^(2-)的变化，以及水力停留时间对处理效率的影响，对影响两相厌氧的主要因素讲行了分析。Composed wet air oxidation(WAO)and two-phases anaerobic digestion process wasstudied to treat waste activated sludge(WAS)producing from petrochemical wastewater treatmentplant,which was poor biodegradable and expensive to dispose.A majority of organic compounds fromwaste activated sludge were released out into liquid after WAO pretreatment,which could be feasibletreated by two-phase anaerobic digestion.The change of COD_(Cr),biogas production,BOD_5,N,SO_4^(2-)and hydraulic retention time were considered in two-phase anaerobic process.

关 键 词：剩余污泥 两相厌氧处理 湿式氧化 处理费用 石油化工废水 可生化性 BOD5 体内释放 影响 转移 

分 类 号：TU991[建筑科学—市政工程] X703[环境科学与工程—环境工程]