呼和浩特市某污水处理扩建提标改造工程设计陈小燕

300381。A2/O、MBBＲ、Ⅴ、、、。。A2/OMBBＲX703C1000－4602201616－0042－04DesignofExpansionandUpgradingProjectofaWastewaterTreatmentPlantinHohhotCityCHENXiao-yanNorthChinaMunicipalEngineeringDesignandＲesearchInstituteCo．Ltd．Tianjin300381ChinaAbstractThecapacityofawastewatertreatmentplantinHohhotwaslargeandtheexpansionandupgradingwereperformedinfourphases．A2/OprocessandMBBＲwereusedforwastewatertreat-ment．Thenitrificationanddenitrificationfilterandimmersedultrafiltrationmembranewereusedforad-vancedtreatmentandtheeffluentqualitycouldmeettheclassVcriteriainthesurfacewaterstandard．Theconcentrationanaerobicdigestionanddewateringprocesseswereusedforsludgetreatmentandsludgereductionstabilizationharmlessandresourceutilizationwereachieved．Itcouldbeaguidancefortheprocessselectionforexpansionandupgradingofthecurrentwastewatertreatmentprojects．KeywordsexpansionandupgradingA2/OMBBＲbiofilterultrafiltrationmembraneanaerobicdigestion、、。2080《》GB3838—2002Ⅴ。20×104m3/d10×104m3/d2000。20065×104m3/d2009。20155×104m3/d。1、、1。ⅤTN《》DB11/890—201210mg/L。·24·321620168CHINAWATEＲ＆WASTEWATEＲVol．32No．16Aug．20161、Tab．1DesinginfluentandeffluentqualityBOD5/mg·L－1COD/mg·L－1SS/mg·L－1NH3－N/mg·L－1TN/mg·L－1TP/mg·L－1pH//·L－115035018040504．56～9301040523．5100．46～915103576m450m259200m2。2①COD、SS、NH3－N、TNTP。②《》GB8978—1996Ⅴ、。③5×104m3/dA/O15×104m3/dA/OMBBＲ。。。④、。33.11。1Fig．1Flowchartofwastewatertreatmentprocess①、、、。4．2m25mm、5mm。。②3．0m3/m2·h。③A/OMBBＲ29697m3//3200m345．6%。300%。A2/O、、、。。。20d3．5g/L。④、45m0．85m3/m2·h。⑤54115000m3/h72kPa。7．2∶1。3.22。///。·34·．watergasheat．com32162Fig．2Flowchartofadvancedtreatmentprocess①。、42、6、1。8．66m/h。②、。8℃。10℃4．96m3/m2·h、11．57m3/m2·h、。BOD5≤10mg/L。0．12kgNH3－N/m3·d0．46kgNO－3－N/m3·d。③SS、。15236．42L/m2·h0．01～0．02μm－60～0kPa。④20min。5．5m。4、。⑤《》GB/T18921—2002≥0．05mg/L6～15mg/L＜103/L。⑥36．6mg/L23mg/L。3.33。3Fig．3Flowchartofsludgetreatmentprocess、、、。20×104m3/d。、。、2。2、Tab．2Sludgeparametersbeforeandafterdigestion/kgDS·d－1/%/m32010097．06701980099．32828395099．356420×104m3/d+10×104m3/d2190397．38111131697．5452395097．5158·44·3216．watergasheat．com18m15m。①220d33～35℃22m29．40m8000m3。②12。③、1700m3/h。④13000m3。⑤1550～850m3/h。⑥12111600kW。42．2m600kg/h。、、。3.4。601．5m844。。4、、、。0．35kW·h/m30．29kW·h/m3。21mg/L4mg/L10mg/L。PAM4g/kgDS。0．487/kW·h、5000/·2．033/m31．569/m3。3092/m3。5、、。MBBＲ≤45%≤5．5g/L。6m。1．J．201329677－80．2．A/O+BAFJ．201329681－8388．1963－。[e-mail]2016－04－25·54·．watergasheat．com32164