多级AO膜生物反应器污泥活性研究高彦林

40620156ENVIＲONMENTALSCIENCEANDMANAGEMENTVol.40No.6June20152015－03－221981－。1674－6139201506－0095－04A/O050021A/O。VSS/SSA/O、30min1hDPBDPB。A/ODPBX703ASludgeActivityＲesearchofMultilevelA/OMBＲGaoYanlinWangJian'aiTheFourthInstituteofNuclearEngineeringShijiazhuang050021ChinaAbstractAnewmultilevelA/OMBＲwasemployedtotreatthesimulatedwastewaterandthesludgeactivityintheprocesswasinvestigated．TheexperimentalresultsshowedthattheVSS/SStendtoslightlydecline．Thenitrificationratedecreasedalongtheaerobicchamberbutthedenitrificationrateintheanoxicchamberwasconsistent．Phosphorusreleaseanduptakewerecom-pletedrespectivelyin30minand60min．Ｒesearchofdenitrifyingphosphate－accumulationforsludgeshowedthattherewasde-nitrifyingphosphorusaccumulatingbacteriaenrichmentwhichindicatedthatdenitrificationwerecontributedtobothdenitrifyingbacteriaandDPB．KeywordsmultilevelA/OmembranebioreactorsludgecharacteristicnitrificationratedenitrificationrateDPB1－2、。A/OVSS/SS、、、。11．1。、、、、。1。1、A/O。A/O8·59·40620156·A/OVol.40No.6June2015、。1．21．2．1。1．2．2HＲT=5h1hA/OHＲT=2.4hDO1.5mg/LDO0.5mg/LMLSS=11±0.5g/LHＲT=1.6h40∶1DO2.6～5mg/L。θr200.75。1．2．3。1。1NH3－Nmg/LTNmg/LTPmg/Lmg/Lmg/LCODcrBOD53032～403．6～5．70.55350～450280～350＜5＜10＜0.5＜0.25＜0.05＜15＜10＞95%＞80%＞90%＞50%＞95%＞95%＞95%2VSS/SSVSS/SS。2VSS/SS。VSS/SS0.845VSS/SS0.857。VSS/SSSSVSS/SS。2VSS/SS33。。mgNH3－N/gMLSS。3．11A/O14100mL100ml。21L850mL50mLpH=7．3。3130min。0.45um。3．2NH3－N0.146mmolNH3－N/gSS·d。A/O、、、2。·69·40620156·A/OVol.40No.6June20152A/OA/O1234mmmolNH3－N/gSS·h0.2970.2570.2530.2430.2634。A/O。A/O－。A/O。COD。A/O。－5COD。。44．11A/O14200ml1L。5g/LKNO35ml。25min。5min030min0.45μm5ml50mlMLSS。4．2A/O3。3h00.5123456NO－3－Nmg/L14．9613．6212．289．177．034．802．620.24NO－3－Nmg/L01．342．685．7967．9410.1612．3414．72NO－3－NA/O0.247mmolNO－3－N/gSS·h。A/O4。4A/OA/O1234mmolNO－3－N/gSS·h0.2470.2490.2460.2430.2464A/O。A/O0.246mmolNO3－N/gSS·hA/O0.263mmmolNH3－N/gSS·h。。55．111L·79·40620156·A/OVol.40No.6June2015。5min015min。21h75min、90min、120min、150min、180min、210min。5．23。330min30min1h1h1h。35．31hKNO336.7g/L20ml。75min、90min、120min、150min、180min、210min。4。44KNO3。DPB6。7DPB。。61A/OVSS/SSA/O。2A/O0.246mmolNO－3－N/gSS·hA/O0.263mmmolNH3－N/gSS·h。3、30min1h。1JohirMAHVigneswaranSSathasivanAetal．Effectoforganicloadingrateonorganicmatterandfoulantcharacteris-ticsinmembranebioreactorJ．BioresourceTechnology2012113154－160．2．MBＲJ．201412168－170．3MarcelMulder．．M．1999．4．M．2002．5．NO2－pHJ．201434102256－2561．6．A2O/MBＲJ．2012381109－113．7．J．2014342383－389．·89·