工业化循环水养殖系统移动床生物膜反应器的设计赵越

335Vol．33No．5201810JOUＲNALOFDALIANOCEANUNIVEＲSITYOct．2018DOI10．16535/j．cnki．dlhyxb．2018．05．0152095－1388201805－0639－051、2311411．2660712．1000493．1160234．266033、、、、286m3/h、4m×4m×2.5m、29min、20/d、、KaldnesK340%、JGＲ150。。S969.38X714A2005—20145.8%7380t1201673.7%2。ＲecirculatingaquaculturesystemＲAS、、、3－6。ＲAS、7。、、MovingbedbiofilmreactorMBBＲ8－9MBBＲＲAS。、、。MBBＲＲusten101112、、、。SalmosalarMBBＲ。MBBＲ、、、HＲTHy-draulicretentiontime、、、MBBＲ。1MBBＲMBBＲ。10～18℃DO≥6mg/L13。1。1.11112、、。2018－01－11314723121992—。[e-mail]1969—。[e-mail]1Tab.1Productionparametersinrecirculatingaquaculturesystemparametersymbolvaluetargetweight/kgFM7volumeofculturepond/m3V200breedingdensity/kg·m－3ρ35maximumbiomass/kgBM7000dailyfeedingrate/%FＲ1temperature/℃T14salinityS30pH7.21.1.1TANTotalAmmoniaNitrogenPTANPTAN14PTAN=BM×1000×FＲ×PC×0.092/24。PCPC43.09%。1TANPTAN=115.6g/h。1.1.2TANCTANTAN《》GB11607－890.02mg/L15。16pH7.2、14℃CTAN5mg/L。TAN5mg/L。TAN1mg/L17。TANTAN。CTAN1mg/L。1.1.3QnewNO－3－NQnewQnew=PTAN/CNO3out。CNO3outNO－3－N。300mg/L18CNO3out100mg/LQnew≈1.16m3/h。1.1.4DOＲDOtankDO。Grttum19ＲDOfish、ＲDOfish=157.4×FM－0.21×1.03T×1.440.5。1ＲDOfish=0.190gO2/kg·hＲDOtank=ＲDOfish×BM=1330gO2/h。1.1.5DOＲDObiofilterＲDObiofilterBODBio-chemicaloxygendemandNODNitrationoxygendemandＲDObiofilter=BOD+NOD=PTAN－Qnew×CTAN×4.57+2.3×CBOD×1－EBOD。CBODBODmg/LEBOD、BOD。EBOD70%11。Kelly20BOD55.42gBOD/t·h。CBOD=55.42gBOD/t·h×7t=387.94gBOD/hＲDObiofilter=790.8g/h。1.1.6DOQtankDODOinlet、DODOtankDOＲDOtankQtank。DODOtank6mg/L。30、14℃、DO240%DO14.6mg/L21Qtank=ＲDOtank/DOinlet－DOtankQtank≈155m3/h。1.1.7TANQbiofilterQbiofilter=Qnew×CTANin－Qnew×CTAN+PTANCTAN×E。CTANinTANmg/LTANCTANin≈0mg/LCTANTANmg/LETAN%。E40%Qbiofilter=0－1.16×1+115.6/1×40%≈286m3/h。1.1.8DOQ'biofilterDO13Q'biofilter=ＲDObiofilter/DOtank－DObiofilterQ'biofilter。DOＲusten2204633DObiofilter2.0mg/LQ'biofilter≈197.7m3/h。≥197.7m3/h。。1.2MBBＲ1.2.1MBBＲQQ'biofilterQtankQbiofilterMBBＲQQtankQbiofilterMBBＲ。Qtank≈155m3/hQbiofilter≈286m3/hQ'biofilter≈197.7m3/hQ286m3/h。1.2.2MBBＲ213KaldnesKaldnesK3500m2/m3。23。MBBＲTAN0.4～0.6mg/L、DO7mg/LTANArealTANＲemov-alＲateATＲ0.03～0.25gTAN/m2·d24ATＲ0.1gTAN/m2·dTANVolumetricTANremovalrateVTＲ50gTAN/m3·d。Vmedia=24×PTAN－Qnew×CTAN/VTＲVmedia=55m3。10。40%Vbiofilter=Vmedia/40%Vbiofilter=138m3。《》252∶1～2100m2。MBBＲ4m×4m×2.5m2.2m。。1.2.3HＲTHＲT=Vbiofilter/QHＲT≈29min。HＲT0.2hHＲT。1.2.4ＲwaternＲwater+Ｒwater=Qnew×24/V+Vbiofilter≈8.2%nn=Q×24/V+Vbiofilter≈20/d。2MBBＲ2.120cm15cm26。《》27。2.2。《32》28v=1.0～1.2m/s。Q/3600×v=πD2/4MBBＲQ143m3/hD1=290～318mmMBBＲD2=205～225mm。MBBＲDN300mm205～225mmDN200mm。DN20mm。2.3Kaldnes0.95g/cm332110K340%。2KaldnesTab.2DataofsomeKaldnescarriersKaldnestypeofKaldnescarrier/mmnominaldiameter/mmnominallength/kg·m－3bulkdensity/m2·m－3specificsurfaceareaK1K2K39.115257.21512150951005003505002.4MBBＲ。14651KaldnesK1、K2、K3Fig.1ThebiofilmcarriersofKaldnestypesK1K2andK3fromlefttoright、、、。5m。27。6∶1291716m3/h。、、JGＲ150。150mm29.03m3/min34.3kPa。330。1112MBBＲ、、、3。3MBBＲTab.3MaindesignparametersofMBBＲdesignparametervalueinfluentflow/m3·h－1286size/m×m×m4×4×2.52×2waterlevelofMBBＲ/m2.2HＲThydraulicretentiontime/min29exchangedwaterquantity/m3·h－11.16cycletimes/times·d－120diameteroftotalinletpipe/mm300diameterofbranchinletpipe/mm200diameterofreplenishmentpipe/mm20rootsblowerJGＲ150blowervolume/m3·h－11716carrierKaldnesK340%MBBＲ、。1FAO．TheStateofWorldFisheriesandAquaculture2016Contrib-utingtoFoodSecurityandNutritionforAllM．ＲomeFoodandAgricultureOrganization20164．2．2016M．2016290－317．3．J．20073428－917．4TimmonsMBEbelingJM．TheroleforrecirculatingaquaculturesystemsJ．AESNews20071012－9．5BarangeMMerinoGBlanchardJLetal．ImpactsofclimatechangeonmarineecosystemproductioninsocietiesdependentonfisheriesJ．NatureClimateChange201443211－216．6YogevUSowersKＲMozesNetal．Nitrogenandcarbonbalanceinanovelnear－zerowaterexchangesalinerecirculatingaquacul-turesystemJ．Aquaculture2017467118－126．7．J．2013151016－2332．8LariyahMSMohiyadenHAHayderGetal．Applicationofmov-ingbedbiofilmreactorMBBＲandintegratedfixedactivatedsludgeIFASforbiologicalriverwaterpurificationsystemashortreviewJ．IOPConferenceSeriesEarthandEnvironmentalSci-ence2016321012005．9BarwalAChaudharyＲ．TostudytheperformanceofbiocarriersinmovingbedbiofilmreactorMBBＲtechnologyandkineticsofbiofilmforretrofittingtheexistingaerobictreatmentsystemsare-viewJ．ＲeviewsinEnvironmentalScienceandBio/Technology2014133285－299．10ＲustenBEikebrokkBUlgenesYetal．DesignandoperationsoftheKaldnesmovingbedbiofilmreactorsJ．AquaculturalEngi-neering2006343322－331．11．J．2004231236－38．12．J．2009252161－166．13TimmonsMBEbelingJMWheatonFWetal．ＲecirculatingAquacultureSystemsM．2nded．NewYorkCayugaAquaVen-tures2002．14．D．2001．15．GB11607－1989S．1990．16．J．1999144－46．17LosordoTM．AnintroductiontorecirculatingproductionsystemsdesignC//EngineeringAspectsofIntensiveAquaculturePro-ceedingsfromtheAquacultureSymposium．IthacaNewYorkCor-nellUniversity199132－47．2463318MasserMPＲakocyJLosordoTM．ＲecirculatingaquaculturetankproductionsystemmanagementofrecirculatingsystemsJ．SＲACPublication19994621－11．19GrttumJASigholtT．AmodelforoxygenconsumptionofAtlan-ticsalmonSalmosalarbasedonmeasureme