奥贝尔氧化沟工艺提标改造设计技术要点郭庆英

300381。《》GB18918—2002A。。TU992C1000－4602201812－0086－04KeyTechnologiesforDesignofOrbalOxidationDitchUpgradeandReconstructionGUOQing-yingLIJingWUDiLIUShi-zeNorthChinaMunicipalEngineeringDesign＆ResearchInstituteCo．Ltd．Tianjin300381ChinaAbstractAsthedischargestandardsimprovedrecentlytheOrbaloxidationditchinamunicipalwastewatertreatmentplantwasupgradedandreconstructedbychangingtheaerationmodefromsurfaceaerationtobottomaerationandaddingapost-denitrificationdeepbedfilter．TheactualoperationshowedthattheprocesshadgoodphosphorusandnitrogenremovaleffectandtheeffluentqualitywassuperiortothefirstlevelAcriteriaspecifiedintheDischargeStandardofPollutantsforMunicipalWastewaterTreat-mentPlantGB18918－2002．Thedesignideasandtipsofchangingaerationmodefromsurfacetobottomwereintroducedemphaticallyandthekeytechnologiesfordesignoftheupgradeandreconstruc-tionweresummarized．KeywordsmunicipalwastewatertreatmentplantOrbaloxidationditchupgradeandrecon-structionaerationdenitrificationdeepbedfilter2080901。23。120083．64hm23×104m3/d。《》GB8978—1996。40%COD、。1。1Tab．1Designwaterqualityandactualeffluentqualitymg·L－1CODBOD5SSNH3－NTNTP50020040038504120303025—120127525309201．1·68·341220186CHINAWATER＆WASTEWATERVol．34No．12Jun．2018、2。2、Tab．2Designinfluentandeffluentqualityofupgradingmg·L－1CODBOD5SSNH3－NTNTP75254015201．550101058150．51。粗格栅、进水泵房污水细格栅旋流沉砂池奥贝尔氧化沟二沉池消毒池河道栅渣栅渣沉砂外运填埋污泥泵池液氯污泥回流污泥缓冲池污泥脱水机房外运1Fig．1FlowchartofOrbalprocessofHuairenWWTP22012。。、。3TNNH3－NCOD、BOD5、TP。2。污泥泵池污泥回流污泥缓冲池污泥脱水机房外运来自预处理奥贝尔氧化沟改造液氯改造部分二沉池二次提升泵池混合池反硝化深床滤池消毒池河道提标深度处理部分2Fig．2FlowchartofupgradingprocessofHuairenWWTP3.1、。。。。200%TN20%。TN25mg/LTN20mg/L。①14D=1800mmn=42r/minN=5．5kW。②422Q=1250m3/hH=35kPaN=22kW。。。3.2+。PACTP。。2～3mm1．83mSS＜5mg/L。。3。混合池进水碳源Ｄenite誖反硝化深床滤池鼓风机气反冲清水池出水反冲洗泵水冲洗废水池反冲洗废水入污水井3Fig．3Flowchartofdenitrificationdeepbedfilter①TN。·78·．watergasheat．com3412NO－x－NN2TN≤3mg/L。。1～2min。②SS。SSBOD50．4～0．5mg/mgSSSSBOD5。SS、1mg/L。TP0．3mg/L。＜2NTUSS＜10mg/L。③TP。。4①、DO0mg/LDO1mg/LDO2mg/L。。TN。②。③。④、、。5《》GB18918—2002A。2016、3。3、Tab．3Actualinfluentandeffluentqualityafterupgradingmg·L－1CODBOD5SSTNTP1551402277．00288752．02．9562．412．804．520．422522362257．06289754．83．2963．612．804．380．413486322146．74282744．22．1855．112．104．610．414645372317．08292836．52．1949．612．405．000．425470312166．70283738．22．6854．412．805．100．426458252146．17278768．43．1382．213．605．350．447351291915．72265746．52．2959．711．605．080．398563362305．97280748．00．9560．09．875．240．409522322155．73283757．81．2672．011．005．570．4010564282275．80284750．21．2262．711．105．730．4111544292215．75265647．21．4860．812．306．020．4012537292155．92283745．21．4058．111．205．990．416、DO0mg/LDO1·88·3412．watergasheat．commg/LDO2mg/LTN《》GB18918—2002A10mg/L。1．J．19991571－8．YanXiuqinZhengXingcanZhangYueetal．ResearchontheengineeringapplicationperformanceofOrbaloxi-dationditchJ．ChinaWater＆Wastewater19991571－8inChinese．2．J．200834Z1186－188．MaiSongbingDengRongsenWangTao．ResearchonOr-baloxidationditchupdatingandreconstructionJ．Wa-ter＆WastewaterEngineering200834Z1186－188inChinese．3．J．20141145－146．FengMeidan．Orbaloxidationditchupdatingandrecon-structionJ．ScienceandTechnology＆Innovation20141145－146inChinese．1976－。[e-mail]櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆2017－11－2285。1．J．201733742－45．ZhangYanZhangFubiaoZhaRenguangetal．Technol-ogiesanddemonstrationsofdrinkingwatersafetyinrivernetworkregionJ．ChinaWater＆Wastewater201733742－45inChinese．2．J．201733487－89．ZhangYun．ApplicationofecologicalwetlandtechnologytoadvancedtreatmentofeffluentfrommunicipalsewagetreatmentplantJ．ChinaWater＆Wastewater201733487－89inChinese．3．J．20163210127－131．ShaHaoleiLiTianyuCaiLuxiang．ProjectcaseandthinkingaboutecologicalremediationforHoucangRiverinNingboCityJ．ChinaWater＆Wastewater20163210127－131inChinese．1966－。[e-mail]2017－09－07·98·．watergasheat．com3412