SBR法处理城市污水的脱氮除磷功效_张可方

SBR法处理城市污水的脱氮除磷功效_张可方SBR法处理城市污水的脱氮除磷功效张可方,张朝升,方茜,伍小军,周莉萍,谭小萍(广州大学<广园校区>环境工程系,广东广州510405)摘要:采用SBR工艺对广州的城市污水进行了生物脱氮除磷试验研究。结果表明:在碳、氮、磷比例不理想的情况下,达到了既去除有机物又能脱氮除磷的效果。当总停留时间控制在4.5～5.5h、污泥负荷为0.14～0.26kgBOD5/(kgMLSS·d)时,出水BOD5浓度为5.12～13.62mg/L,去除率达85%～93%;出水COD浓度为10.7～32.2mg/L,去除率达82%～88%;出水NH3-N浓度为2.83～9.23mg/L,去除率达53%～87%;出水TP浓度为0.1～0.45mg/L,去除率达85%～99%。关键词:城市污水;SBR;脱氮除磷中图分类号:X703.1文献标识码:A文章编号:1000-4602(2001)11-0017-04EfficiencyofSBRProcessinRemovalofNitrogenandPhosphorusfromMunicipalWastewaterZHANGKe-fang,ZHANGChao-sheng,FANGQian,WUXiao-jun,ZHOULi-ping,TANXiao-ping(DepartmentofEnvironmentalEngineering,GuangzhouUniversity,Guangzhou510405,China)Abstract:StudywasmadeontheuseofSBRprocessforbiologicalremovalofnitrogenandphosphorusfrommunicipalwastewaterinGuangzhoucity.TheresultshowedthatatundesirableproportionofC∶N∶P,removalofbothorganicmattersandN-Pcanbeachieved.WhentotalHRTiscontrolledat4.5～5.5handsludgeloadis0.14～0.26kgBOD5/(kgMLSS·d),theremovalrateofBOD5,COD,NH3-N,andTPisrespectively85%～93%,8