呼和浩特市某污水处理扩建提标改造工程设计_陈小燕

呼和浩特市某污水处理扩建提标改造工程设计_陈小燕呼和浩特市某污水处理扩建提标改造工程设计陈小燕(中国市政工程华北设计研究总院有限公司，天津300381)摘要:呼和浩特市某污水处理工程规模较大，分四期扩建提标改造。污水处理采用A2/O、MBBＲ工艺，深度处理采用硝化反硝化生物滤池、浸没式超滤膜工艺，出水水质需达到地表水Ⅴ类水质标准;污泥采用浓缩、厌氧消化及脱水处理工艺，以实现减量化、稳定化、无害化及资源化。该工程对当前污水处理项目扩建提标改造的工艺选用具有指导意义。关键词:扩建提标改造;A2/O;MBBＲ;生物滤池;超滤膜;厌氧消化中图分类号:X703文献标识码:C文章编号:1000－4602(2016)16－0042－04DesignofExpansionandUpgradingProjectofaWastewaterTreatmentPlantinHohhotCityCHENXiao-yan(NorthChinaMunicipalEngineeringDesignandＲesearchInstituteCo．Ltd．，Tianjin300381，China)Abstract:ThecapacityofawastewatertreatmentplantinHohhotwaslarge，andtheexpansionandupgradingwereperformedinfourphases．A2/OprocessandMBBＲwereusedforwastewatertreat-ment．Thenitrificationanddenitrificationfilterandimmersedultrafiltrationmembranewereusedforad-vancedtreatment，andtheeffluentqualitycouldmeettheclassVcriteriainthesurfacewaterstandard．Theconcentration，anaerobicdigestionanddewateringprocesseswereusedforsludgetreatment，andsludgereduction，stabilization，harmlessandresourceutilizationwereachieved．Itcouldbe