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20182045382·117·—1121,2(12151642215009)[]5.5%400COD60%40%400—[]400[]TQ[]A[]1007-1865(2018)20-0117-04DiscussiononTreatmentProcessofHighConcentrationPolyethyleneGlycolPharmaceuticalWastewater-TakingaPharmaceuticalWastewaterTreatmentStationasanExampleYangHailiang1,HuZhuangcai1,WangXiangqing2,MaSanjian1,2(1.SuzhouKeteEnvironmentalProtectionLimitedbyShareLtd.,Suzhou2151642.SchoolofEnvironmentalScienceandEngineering,SuzhouUniversityofScienceandTechnology,Suzhou215009,China)Abstract:Asyntheticpharmaceuticalwastewatercontaining5.5%polyethyleneglycol400wasteliquid,polyethyleneglycolCODcontributionvalueaccountedforabout60%.Theanaerobicremovalrateofthecomprehensivewastewaterisabout40%,whichneedstobeachievedbytheaerobicandadvancedtreatment,suchasadvancedoxidationandsoon,andtheoperatingcostishigh.Anaerobictestanalysisofsyntheticwastewater,thatistheresultofbiochemicaltreatmentofwastewaterfrompolyethyleneglycoldirectlycausesthelowefficiency,wastepolyethyleneglycol400recommendedbywetoxidationpretreatment,mixedwithotherwastewaterintotheexistinganaerobicaerobictreatmentsystemcouldmeetthedischargerequirements,theprocessingsystemofstandardguaranteerateincreasetomorethan95%.KeyWords:Pharmaceuticalwastewater;PEG400;Anaerobic;Wetoxidation140%22.130%60%5%5%11Tab.1Waterqualityandquantityofwastewaterineachworkshop/(t/)/(t/)6013.821.86021.123.86148.842.6636/6371.223.863930%4003.03.062830%4003.03.020.9118.01000~1100m3/d22Tab.2ConventionalwaterqualityindexesofcomprehensivewastewaterCODcrNH3-NTPpH/(mg/L)5500~65001~102.3420~6050~1507.0~9.0CODcrpHNH3-NTP[]2018-09-13[](1985-)201820·118·*4m*5.5m2006004802141m*12m*5.5m27008132.43115.5m*12m*6m11003313.241100.30.125112m*2.5m*6m10031.26UASB2Φ10m*13.5m21006325.22.0~2.5kgCOD/(m3·d)4.0~5.0kgCOD/(m3·d)7A/O212m*9m*5.5m100030120.6~0.7kgCOD/(m3·d)0.4~0.6kgCOD/(m3·d)8A/O212m*23m*5.5m3000903692Φ13m*4.5m11003313.20.13m2(m3·h)0.31m2/(m3·h)102Φ13m*4m100030120.13m2/(m3·h)0.31m2/(m3·h)(1)1100m³3/d2000m3/d(2)UASBCOD5000~6000mg/L4000~5000mg/L(3)A/OCOD3000~3500mg/L800~1200mg/L40%(CODcr500mg/L)2500m3/dCOD33.1UASB35±2700mm90mm()80mm3LUASBUASB3L11UASBFig.1ExperimentaldeviceofUASBreactor3.2UASBIC1.0~3.0mmTSS70g/L90%1L3.3400(PEG400)1.5L/d2dCOD22UASBCOD50%10%2UASBFig.2UASBinletandoutletconcentrationsandtheirremovalefficiencyinacclimationadaptationperiod3.41.5L/d2dCOD33UASBFig.3Loadlifting,stableperiodofUASBinandout,waterconcentrationanditsremovalefficiency3UASBCOD2700mg/L4000mg/L68d30%55%4000mg/L4700mg/L28d18.6%UASBUASB2~3kgCOD/(m3·d)20182045382·119·4(mg/Lμg/L)Tab.4Anaerobiceffluent,effluentpollutantcompositionandconcentration191.849.521,1-320.609/341128.74689.3341,2-16.503/51,1-4.1371.3866-1,2-7.760/771.404321.494848.79324.846970.1542.6021010.62917.740/HJ636-2010GB/T7484-199743.5PEG400380~4206m3/dCOD55mg/L11%COD55PEG400Tab.5MaincomponentsofPEG400wasteliquid/(kg/t)/%()353.5PEG400287.528.75727.2601100m3/d6m3/dPEG400COD60%PEG400B/C0.0058(B/C0.3[1])[2]66PEG400Tab.6AnalysisofthedegradationofwastewatercontainingPEG4001PEG400COD1.71g/g2PEG400BOD0.01g/g31.27g/mL4COD2171700mg/L5BOD12700mg/L6BOD/COD0.005848728.75%8PEG400COD624364mg/L50mg/L9PEG4006m3/d101100m3/d11COD6000mg/L6280mg/L5500mg/L12PEG400COD3406mg/L13PEG400COD56.8%14PEG40070%15PEG4000%16COD4184mg/L1730.3%18PEG400COD2594mg/L19PEG40070%20COD778mg/L21COD400mg/L22+MBR48.6%PEG400COD30%CODPEG400COD70%COD48%4PEG4004.1PEG400[3-5]SeiichiroImamuraPEGTOC2000PEGPEG[6]DionissiosMantzavinos423KPEG-1000015min--PEG[7]RolfHellenbrand[8]4.2PEG4004Fig.4ThesketchmapoftheWAOexperimentalequipment201820·120·(1)2206220Tab.6Testconditionsbelow220COD/(mg/L)//Mpa/hCOD/(mg/L)COD/%139801852.111922.549.6239801952.51210344.8339802052.91198348.043984501852.1334000010.853984501953.1431000018.763984502053.9424800034.973984502053.93.523100039.4pH8~105~6COD(2)COD220COD7220Tab.7Testconditionsabove220COD/(mg/L)//Mpa/hCOD/(mg/L)COD/%139845034018.411450096.2239845034018.411250096.7339845032016.812300094.0439845030015.913100091.9539845028015.314060089.3639845028015.314100089.2739845027014.217500080.3839845026012.518300078.2939845025010.119600074.8103984502408.3112800066.467COD220~32024066%28090%3406%34096%280(3)2808Tab.8Anaerobicstatictestresultsafterdilutionofresidualliquid/dCOD/(mg/L)10800021720032590043410055320067140079130081112609Tab.9Resultsofaerobicaerationtestafterdilutionofresidualliquid/dCOD/(mg/L)10200021126032410441805613068110PEG400CODCOD60%CODPEG400(260~30015~20MPa)PEG4005PEG400PEG400(1)PEG400COD40%(2)PEG400B/C0.0058CODCOD60%(3)PEG400(4)PEG400(5)(260~30015~20MPa)PEG400[1]()[M]2000577-589[2][M]1999374-385[3][J]20013-5[4][J]19994(7)364-366(128)201820·128·[1][J]201637(1)32-39(116)[1][J]()201041(7)52-57[2][J]200653(11)682-683[3]VOCs[J]201132(12)3476-3486[4][J]201733(18)107-110[5]GostelowPParsonSASewagetreatmentworksodourmeasurement[J]WaterScienceandTechnology200041(6)33-40[6][J]2002241-42[7][J]201541129-130