SBR法处理城市污水脱氮除磷试验_张朝升

SBR法处理城市污水脱氮除磷试验张朝升,张可方(广州大学土木工程学院市政与环境工程系,广州　510405)　　摘要:采用SBR工艺对广州地区城市污水进行了生物脱氮除磷实验研究。结果表明:在碳、氮、磷比例不合理的情况下,达到了既去除有机物又能脱氮除磷的效果。总停留时间控制在4.5～5.5h,污泥负荷为0.14～0.26kg-BOD5/(kgMLSS·d)时,出水BOD5浓度在5.12～13.62mg/L,去除率达85%～93%;出水COD浓度在10.7～32.2mg/L,去除率达82%～88%;出水NH4—N浓度在2.83～9.83mg/L,去除率达53%～87%;出水TP浓度在0.1～0.45mg/L,去除率达85%～`99%。关键词:SBR;城市污水;脱氮除磷;污水处理中图分类号:X321　　文献标识码:A　　文章编号:1002-1264(2003)06-0078-03EfficiencyofSBRProcessinRemovalofNitrogenandPhosphorusfromMunicipalWastewaterZHANGChao-sheng,ZHANGKe-fang(DepartmentofEnvironmentEngineering,Guangzhouuniversity,Guangzhou　510405,China)Abstract:NitrogenandphosphorusremovalfromGuangzhou'smunicipalwastewaterwithSBRprocesswasstudied.TheresultsshowedthattheeffectoforganicsremovalaswellasnitrogenandphosphorusremovalcanbeobtainedwhileC:N:Pwasoutofproportion.WhentotalHRTwas4.5to5.5hours,sludgeloadwas0.14～0.26kgBOD5/(kgMLSS·d),theeffluentconcentrationsofBOD5,COD,NH3-NandTPwasfrom5.12to13.62mg/L,10.7～32.2mg/L,2.83～9.83mg/Land0.1～0.45mg/Lrespectively,theremovalr