气升循环分体式膜生物反应器处理厕所污水  

RESEARCH ON AMMONIATE REMOVAL FROM TOILETS WASTEWATER USING AN AIRLIFT EXTERNALLY RECIRCULATED MEMBRANE BIOREACTOR

作　　者：李刚[1] 樊耀波[1] 吴琳琳[1] 吴光夏[1] 

机构地区：[1]中国科学院生态环境研究中心水污染控制研究室,北京100085

出　　处：《水处理技术》2006年第3期49-53,共5页Technology of Water Treatment

基　　金：国家高技术研究发展计划(863)项目(2002AA601220)

摘　　要：以高氨氮、低碳氮比(C/N)的厕所污水为研究对象,对气升循环分体式膜生物反应器的氨氮脱除能力及其影响因素和控制方法进行了研究。结果表明:气升循环分体式膜生物反应器处理BOD5/NH+4-N接近1/1的高氨氮厕所污水,在生物反应池污泥浓度为1.0～2.0g/L,溶解氧浓度为1.0～2.0mg/L,调节池中投加Na2CO3和NaOH碱度的条件下运行,实现了厕所污水中有机物和氨氮的良好降解和脱除,氨氮由入水浓度241.5mg/L降为出水浓度10mg/L以下,系统出水优于《城市污水再生利用城市杂用水水质》(GB/T18920-2002)标准要求,同时具有30%～80%的脱氮能力。With toilets wastewater of its high NH4^＋-N concentration and low ratio of carbon and nitrogen（C/N）, this study aimed to investigate the effects and controls of ammoniate removal from toilets wastewater using an airlift externally recirculated membrane bioreactor. The experimental results showed that, under the condition of BOD5/NH4^＋-N1.0 in influent, MLSS1.0～2.0g/L and DO1.0～2.0g/L in bioreactor, the external Na2CO3 and NaOH alkalinity addition in adjusting tank, NH4^＋-N concentration decreased from 241.5mg/L to below 10mg/L and organic substances could be perfectly bioticgraded in the plant simultaneously with total nitrogen removal efficiancy of 30%～80%. The quality of effluent overmatches water quality standard for urban miscellaneous water consumption （GB/T18920-2002 ）.

关 键 词：膜生物反应器 厕所污水 PH 碱度 硝化反硝化 

分 类 号：TQ028.8[化学工程] X703.1[环境科学与工程—环境工程]