Vol.7No.3May2017JournalofEnvironmentalEngineeringTechnology7320175.MBBRJ.201773285-292.CHENGZRJIANGYCWANGHYetal.Studyoncarrieroptimumfillingratiooftwo-stageMBBRfortreatmentofreverseosmosisconcentratefromhigh-qualitywaterreclamationofWWTPeffluentJ.JournalofEnvironmentalEngineeringTechnology201773285-292.2017-01-152014ZX07216-0011990—ch_zirui@163.com*1976—wanghy@craes.org.cnMBBR1,2,3,1,2,3*,4,2,3,2,3,1,2,3,2,3,51.7300002.1000123.1000124.2550315.730050NH+4-N、-MBBRfillingratioFR51%、42%32%MBBRNH+4-N、NO-3-NCODCr。MBBRFR51%、42%32%NH+4-N67.0%±4.0%、71.3%±8.9%73.2%±6.1%FR32%MBBRFR51%、42%32%NO-3-N73.1%±4.2%、63.7%±9.4%64.9%±10.4%。FR32%。MBBRMBBRX7031674-991X201703-0285-08doi10.3969j.issn.1674-991X.2017.03.041Studyoncarrieroptimumfillingratiooftwo-stageMBBRfortreatmentofreverseosmosisconcentratefromhigh-qualitywaterreclamationofWWTPeffluentCHENGZirui123JIANGYunchao1WANGHaiyan23LIPeixian4HANGQianyu23LILi23YANGYanyan123ZHONGZhen2351.CollegeofEarthEnvironmentalSciencesLanzhouUniversityLanzhou730000China2.StateKeyLaboratoryofEnvironmentalCriteriaandRiskAssessmentChineseResearchAcademyofEnvironmentalSciencesBeijing100012China3.ResearchCenterforWaterPollutionControlTechnologyChineseResearchAcademyofEnvironmentalSciencesBeijing100012China4.ShandongIndustrialCeramicsResearch&DesigninstituteCo.LtdZibo255031China5.LanzhouUniversityofTechnologyLanzhou730050ChinaAbstractApilotnitrosation-denitrificationtwo-stagemovingbedbio-filmreactorMBBRwasdevelopedfortheadvancednitrogenremovalofhighNH+4-Nandsalinityreverseosmosisconcentratewhichwasproducedfromthehigh-qualitywaterreclamationofwastewatertreatmentplantWWTPeffluent.TheremovaleffectofNH+4-N7NO-3-NCODCrandotherpollutantswascomparedundercarrierfillingratioFRof51%42%and32%respectively.TheresultsshowedthattheaverageNH+4-Nremovalratewas67.0%±4.0%71.3%±8.9%and73.2%±6.1%whentheFRwas51%42%and32%inthenitrosationMBBRandtheoptimalFRwas32%.InthedenitrificationMBBRtheaverageNO-3-Nremovalratewas73.1%±4.2%63.7%±9.4%and64.9%±10.4%whentheFRwas51%42%and32%respectively.Takingaccountofeconomicalavailability32%wasselectedastheoptimumFR.Keywordshigh-qualitywaterreclamationofWWTPeffluentreverseosmosisconcentratenitrosationMBBRdenitrificationMBBRcarrieroptimumfilingratiomovingbedbiofilmreactorMBBR20901-23-4、、、56-7、8MBBR57。fillingratioFRMBBR、。MBBR。FR。FRMBBRFR30%~50%。MBBR9FR13.3%、26.7%40.0%FR40.0%85%。AO-MBBR10CODCrMBBRFRFR55%92.4%FRCODCr。MBBRFR20%、30%、40%50%30%11。12-13DFRO14NH+4-N、NO-3-NNH+4-NNO-3-N。MBBR、1-4。NH+4-N、NO-3-NMBBR、-MBBRMBBRFRNH+4-NMBBRFRMBBRFRNO-3-NMBBRFR。11.1MBBRMBBRMBBR23。MBBR1.5m×1.15m×1.0m1.8m3T10101MBBR1.5m×1.8m×1.0m2.7m32MBBR2BJ-350。2MBBR1。MBBRPE1。·682·3MBBR1MBBRFig.1Two-stageMBBRprocessflowchart1Table1ParametersofcarriersmmgLm2m3m3PE25×120.95~0.9976.650019001.2MBBRHRT8hMLSS3500mgLpH7.37~8.12MBBRHRT12hMLSS3500mgLpH7.16~7.79。MBBRDO1.0mgLPEFR51%、42%32%3。MBBRA2OMLSS7351mgLMLVSS3561mgLMLVSSMLSS0.48SVI89mLgMBBRA2OMLSS6707mgLMLVSS3534mgLMLVSSMLSS0.53SVI92mLg。1.3DFRONH4ClNH+4-NMBBR50mgL2。2Table2InfluentcharacteristicsFR%dCODCrmgL‰TNmgLNH+4-NmgLNO-3-NmgLNO-2-NmgLMBBR51120~13359.9±10.40.60±0.0521.6±1.09.4±0.911.0±1.01.3±0.142134~15053.4±8.40.60±0.0621.9±0.79.5±0.410.8±0.51.5±0.132151~16659.6±6.20.61±0.0419.6±0.68.7±0.39.6±0.61.3±0.2MBBR51120~13372.9±19.90.60±0.059.5±1.03.1±0.43.7±0.71.0±0.242134~15069.7±14.50.60±0.069.5±1.42.8±0.93.9±0.91.1±0.132151~16686.3±22.20.61±0.057.8±1.22.3±0.62.8±0.81.1±0.21.4MBBR2~3d1CODCrNH+4-NTNNO-3-NNO-2-NN-1--15。22.1NH+4-NMBBRNH+4-NFRMBBR2。2FR51%、42%32%NH+4-N67.0%±4.0%、71.3%±8.9%73.2%±6.1%FRNH+4-NMBBRDO1.0mgLNH+4-NNO-2-N16。FR32%NH+4-N42%51%AOMBBRFR30%~50%17。MBBRFR51%、42%·782·72MBBRFRNH+4-NFig.2NH+4-NremovalrateofnitrosationMBBRatdifferentFR32%NH+4-N14.9%±13.1%、7.4%±4.7%9.1%±5.2%3MBBRNH+4-NMBBRMBBRNH+4-NNO-2-N16NO-2-NMBBRNH+4-NMBBRNH+4+NO-2→N2+2H2O18。3MBBRFRNH+4-NFig.3NH+4-NremovalrateofdenitrificationMBBRatdifferentFR2.2NO-2-NMBBRFR51%、42%32%MBBRNO-2-N4DO1.0mgL16。4MBBRNO-2-N1.5±0.6、1.3±0.41.4±0.2mgL3FRNO-2-N。4MBBRNO-2-NFig.4NO-2-NaccumulationofnitrosationMBBRMBBRFR51%、42%32%MBBRNO-2-N61.4%±11.7%、58.3%±8.9%58.2%±9.1%FRNO-2-N5。5MBBRFRNO-2-NFig.5NO-2-NremovalrateofdenitrificationMBBRatdifferentFR2.3NO-3-NMBBRFR51%、42%32%MBBRNO-3-N66.8%±4.9%、63.9%±8.6%71.1%±7.5%。FR32%NO-3-NFR42%51%6。MBBRDO·882·3MBBR16NO-3-NNO-3-NMBBR4min2minDO、19NO-3-NNO-3-NMBBR192min2min。6MBBRFRNO-3-NFig.6NO-3-NremovalrateofnitrosationMBBRatdifferentFR7MBBRFRNO-3-NFig.7NO-3-NremovalrateofdenitrificationMBBRatdifferentFRMBBR611FR51%、42%32%MBBRNO-3-N73.1%±4.2%、63.7%±9.4%64.9%±10.4%7。FR51%NO-3-NFR42%32%。FR42%32%NO-3-NMBBRFR32%30%11。20MBBRNO-3-N2.2~12.4mgLNO-3-N74.7%。2.4TNMBBRFR51%、42%32%TN56.1%±4.8%、56.8%±6.2%60.1%±5.3%8。MBBR21TN35.41mgLDO2、3、45mgLTN44.7%、60.49%、73.43%56.05%DO1.0mgLTN。3FRTNFR32%42%51%。8MBBRFRTNFig.8TNremovalrateofnitrosationMBBRatdifferentFR9MBBRFRTNFig.9TNremovalrateofdenitrificationMBBRatdifferentFRMBBRFR51%、42%32%MBBRTN48.8%±7.2%、47.2%±6.4%44.2%±8.4%·982·79。MBBRTN46.9%20TN。3FRTNFR51%FR42%32%。MBBRFR51%、42%32%TN77.7%±3.3%、77.2%±5.6%78.6%±4.5%。FRMBBRT