MBBR磁混凝工艺用于污水处理厂提标改造熊建英

MBBＲ+＜＞200092AAO《》GB18918—2002BA。3AAOMBBＲ、TPSS。70000．22/m3。MBBＲ+。MBBＲTU992．3C1000－4602201820－0050－06ApplicationofMBBＲ+MagneticCoagulationProcessforUpgradingofWastewaterTreatmentPlantXIONGJian-yingShanghaiMunicipalEngineeringDesignInstitute＜Group＞Co．Ltd．Shanghai200092ChinaAbstractTheAAOprocesswasadoptedinYanchengChengdongwastewatertreatmentplantinoriginaldesignplanandtheeffluentwaterqualitywasrequiredtomeetthefirstlevelBstandardintheDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantGB18918－2002．InordertomeetthefirstlevelAstandardtheupgradingandrenovationprojectwasconducted．InthisprojectthreeAAObioreactiontanksweretransformedintoMBBＲtankstoachievehighefficienciesofnitrificationanddenitrificationaccordingtothesimulationandanalysisofbiologicaltreatmentsystem．MeanwhileTPandSSwereremovedbymagneticcoagulationclarifier．Thesmellystructuresofthewholeplantwerecov-eredwithfiberglassandthe“soilmethod”wasadoptedfordeodorization．Thetotalinvestmentoftheprojectwasabout70millionyuanandtheoperatingcostincreasedby0．22yuan/m3．InconclusionanexcellenttreatmentperformancehasbeenachievedafteroperationandtheMBBＲ+magneticcoagula-tionprocesscombinedwithsoildeodorizationwouldbeagoodtechnologyfortheupgradingandrenova-tionprojectofwastewatertreatmentplantinChina．Keywordsupgradingmovingbedbiofilmreactormagneticcoagulation30．5km22×104m3/d8．32hm2。10×104m3/d、2．5×104m3/d5×104m3/d。、、→→→AAO→→→。《》GB18918—2002B。9．5h5．2m·05·3420201810CHINAWATEＲ＆WASTEWATEＲVol．34No．20Oct．2018B。2014201612。1、2013—20146．0～6．5×104m3/d、3～3．5×104m3/d2．5～3．0×104m3/d10×104m3/d。10×104m3/d。1。1Tab．1Actualinfluentqualitybeforeupgradingmg·L－180%85%90%COD400343353370BOD5200109111117SS250189190237NH3－N3023．22425．7TN4032．332．735．5TP34．364．544．81COD、SS、NH3－N、TNB/C0．32TP。TP5mg/LGB18918—2002A2。2、Tab．2Designinfluentandeffluentqualitymg·L－1CODBOD5SSTNNH3－NTP4002002504030550101015580．522.19．8～10．8h13．8h3。3Tab．3Actualeffluentqualitybeforeupgradingmg·L－180%90%COD6042．144．343．2BOD5209．710．19．9SS2011．512．912．2NH3－N8155．58．97．2TN2012．615．514．1TP1．51．121．261．19COD、NH3－N、TN。ASM2D、、。45。4Tab．4Designparametersofbioreactor/h9．8/h1．66/h1．66/h6．5/mg·L－12．0/%50～100/%100～300/m·h－11．02/h10．8/h1．78/h1．78/h7．3/mg·L－12．0/%50～100/%100～300/m·h－11．065MLSS=3500mg/LTab．5TreatmenteffectunderfullloadMLSS=3500mg/Lmg·L－1CODSSNH3－NTNTP40025030405554058153、12℃37．213．524．325．90．34925℃35．213．20．2599．142．2712℃36．112．224．225．90．32225℃33．911．70．2539．092．08·15·．watergasheat．comMBBＲ+3420NH3－NTN。12。302520151050出水氨氮/（mg·Ｌ－１）６.０６.57.07.58.08.59.09.510.0污水处理量/（104m3·d-1）1Fig．1ＲemovalefficiencyofNH3－Nunderdifferentflowrates2520151050出水氨氮/（mg·Ｌ－１）7.０6.56.05.55.04.5污泥浓度/（g·Ｌ-1）一期、二期工程三期工程2Fig．2ＲemovalefficiencyofNH3－Nunderdifferentsludgeconcentration16．5～7．0×104m3/d14．0h2、6．0g/L、5．0g/L。①5～6g/L②③5～6g/L。－MBBＲ1～3。2.2TPSSA。、、。、“+”。SS20mg/L10mg/LSS。PAMPAM、。、SS≤5mg/L、SS≤10mg/L。、、SS。3。出水出水渠沉淀区沉淀区出水渠进水区ＰＡＭ反应区反应区32反应区2反应区3ＰＡＭ磁粉ＰＡＣ反应区１进水回流污泥回流污泥磁分离机磁分离机污泥池反应区１磁粉ＰＡＣ进水3Fig．3Structureofmagneticcoagulationclarifier33.1COD、BOD5、NH3－NTN50、10、5、15mg/L·25·3420．watergasheat．comCOD、BOD5、NH3－NTN。、86MBBＲ、、1。、6、7MBBＲ4、5MBBＲ620m2/m33090m3MBBＲ30%～40%。MBBＲ。64。6Tab．6Designparametersofbioreactorafterupgrading、/104m3·d－155MLSS/g·L－155/kgBOD5·kg－1MLSS·d－10．0920．084/kgBOD5·kg－1MLSS·d－10．140．125HＲT/h4．24．8HＲT/h5．76．1/%200～300200～300/%50～10050～100/104m2≥95．8≥95．8一、二期进水外回流污泥厌氧区厌氧区缺氧区缺氧区好氧区好氧区好氧区好氧区好氧区好氧区好氧区好氧区出水内回流污泥泵一、二期进水外回流污泥缺氧区缺氧区缺氧区好氧区好氧区好氧区好氧区好氧区出水缺氧区缺氧好氧调节区内回流污泥泵不锈钢导流板（新增）不锈钢拦截网（新增）ＭＢＢＲ区ＭＢＢＲ区不锈钢拦截网（新增）潜水推流器（新增）三期进水外回流污泥好氧区好氧区三期进水外回流污泥缺氧好氧调节区好氧区厌氧区厌氧区缺氧区缺氧区好氧区好氧区好氧区好氧区内回流污泥泵出水缺氧区缺氧区缺氧区缺氧区好氧区ＭＢＢＲ区不锈钢拦截网（新增）潜水推流器（新增）ＭＢＢＲ区内回流污泥泵好氧区出水4Fig．4Bioreactorprocesslayout3.2。4、、、。5。7。第三格提升泵房第三格第二格配电控制室配水井配水井第一格第二格进水渠透气井第一格污泥池出水渠进水渠a.平面图b.剖面图5Fig．5Processlayoutofliftingpumproomandmagneticcoagulationclarifier7Tab．7Designparametersofmagneticcoagulationclarifier/m3·h－154171210×104m3/dHＲT/min1．45HＲT/min1．45HＲT/min2．7/m×m14．0×14．0/m3·m－2·h－113．517．6/m1．5/°60/mm80/m7·35·．watergasheat．comMBBＲ+34203.3、、、。1、1、1、1MBBＲ3。420161220171—126．5×104m3/d8．2×104m3/d7．7×104m3/d、8。8Tab．8ActualinfluentandeffluentqualityofWWTPmg·L－1CODBOD5SSNH3－NTNTP118638758．999813．50．518．910．12．040．32224735974．697613．00．419．29．72．880．31320930843．794515．50．422．39．33．000．184240331034．398612．51．321．09．63．920．195258261053．497518．00．427．512．53．950．20622928963．895518．60．828．313．43．820．21718129824．697416．20．525．812．82．270．25819030896．6154715．20．522．010．51．980．25917225794．7136513．50．419．010．12．630．211017630696．8105713．60．722．010．83．230．171118034515．8129618．21．023．012．23．840．111220434545．589418．01．624．012．42．920．2420631825．2108615．50．722．811．13．040．228GB18918—2002A。PAM32t1．14mg/L。COD、BOD5、NH3－N、TN50%～60%MBBＲCOD、、。5①MBBＲ2MBBＲCOD、NH3－N、TN。②、SSTPGB18918—2002A。+、PAM、、、、。③25～40m/h。、、、、。。④MBBＲ+、、。“MB-BＲ+”、、。70000．22/m3、·45·3420．watergasheat．com。1．MBBＲJ．2017331330－34．LiXinliWuDiZhangJingjingetal．Comparisonbe-tweenMBBＲandactivatedsludgeprocessfortreatmentofleatherwastewaterJ．ChinaWater＆Wastewater2017331330－34inChinese．2ShinDHShinWSKimYHetal．Applicationofacombinedprocessofmoving-bedbiofilmreactorMBBＲa