高浓度箱板纸生产废水处理的工程实例李川

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ProjectofthetreatmentofhighlyconcentratedwastewaterfromcardboardpaperproductionLiChuan1,LiuYujie2,ZhangHui3,LuoHongyan1(1.JiangsuKeyLabofForestryEcologicalEngineering,NanjingForestryUniversity,Nanjing210037,China;2.HitachiElevator(Shanghai)Co.,Ltd.,Shanghai201700,China;3.JiangsuKeyLabofPulpandPapermakingScienceandTechnology,NanjingForestryUniversity,Nanjing210037,China)1,2,3,1(1.,210037;2.(),201700;3.,210037)[],—/———。,;,BOD/COD,/COD90%;COD;。CODSS,COD98%,SS99%,《》(GB3544—2001)。[];;;[]X703.1[]B[]1005-829X(2010)06-0081-03Abstract:Thewastewaterfromalarge-scalepapermakingenterpriseprojecthasbeentakenasexample.Theappli-cationofthefirstcoagulationsedimentation-anaerobichydrolysis/aerobicoxidation-secondarycoagulationsedimen-tation-sandfiltrationprocesstothetreatmentofcardboardwastewaterwithhighconcentrationisdiscussed.There-sultsshowthatthefirstcoagulationsedimentationcaneffectivelyremovethesuspendedsubstances,andtheanaero-bichydrolysisfiltercanbearthehighlyorganicloadandincreasetheBOD/COD.TheCODremovalrateattheanaerobichydrolysis/aerobicoxidationstagecanbehigherthan90%.Thesecondarycoagulationsedimentationfur-therdecreasestheCODofthewastewater.Thefinalsandfilterensuresthestabilityofeffluentwaterquality.ThisprojectcaneffectivelyremoveCODandSSfromthewastewaterincardboardpaperproduction,theaverageCODre-movalrateis98%andaverageremovalrateofSSis99%。EveryeffluentindexmeetstherequirementsofthePol-lutantDischargeStandardfromPapermakingIndustrialWater(GB3544—2001).Keywords:wastewaterfromcardboardpaperproduction;coagulationsedimentation;anaerobichydrolysis-aerobicoxidation50%、20%95%〔1〕,。,ABR〔2〕,-〔3〕。“”,〔4-5〕。60m3/t,20m3/t〔6〕。。,,、,,30620106IndustrialWaterTreatmentVol.30No.6Jun.,201081——2010-06,30(6)〔7〕。20.9m3/t,,:—/(A/O)———,CODSS,《》(GB3544—2001)。1(),14t,8000m3/d,1。、、。、,()、、()、。、CODBOD;、SS;、COD〔8〕。2SSCOD,、SS;、(1)、(2),2,。BOD/COD0.4,,,A/O,,BOD/COD;,COD。1。(1)。2,1.0m3/(m2·h),500m3,HRT3h。(2)A/O。440m3,HRT1.5h;8064m3,HRT24h。A/O,,,0.2mg/L;,,2mg/L,300m3/h。BOD0.2kg/(kg·d),n(BOD)∶n(N)∶n(P)=100∶5∶1。(3)。2,0.9m3/(m2·h),617m3,HRT3.7h。2,1.4m3/(m2·h),350m3,HRT2.1h。(PAC),(PAM)。3,—A/O———,。,COD98%,SS99%,《》(GB3544—2001)。2。4(1)。438.4,109.98,230.0,778.38。(2)。3,2844,=2844÷8000=0.356。467.22kW,132.31kW,4kW,603.53kW。0.50/(kW·h),1/(m3·t-1)CODCr/(mg·L-1)BOD5/(mg·L-1)SS/(mg·L-1)/(mg·L-1)/(mg·L-1)pH20.951852035575150.97.38:GB3544—2001。2BOD5/(mg·L-1)CODCr/(mg·L-1)SS/(mg·L-1)pH2015±7805185±20005751±20006~9、(1)1526±5853920±15004313±1500449±591150±150180±636~9A/O———6~959±20150±50120±4235±1290±3080±2831±1880±2075±25≤49≤100≤1006~9601001006~982——2010-06,30(6),:···············································———,,,.CN101475249,:(1)。(2):,,;,。(3):,。(4):1∶(40~60),30~45min,,。。,。———,,.CN101544448,:,BOD,,,,,,,,,。,、。()3/(kg·d-1)/(·kg-1)/PAC48000.19912PAM38.431.51209.6236.83.20384H3PO4120.01.43338.670%,=0.50×603.53×24×0.7=5069.652。=5069.652÷8000=0.634。0.3+0.267+0.356+0.634=1.557。5(1)A/O,,,,,。A/O,,。(2),、、A/O,,。,,、。(3),。,。[][1],,.[J].,2005,12(24):55-58.[2],,,.ABR—[J].,2006,32(5):55-58.[3],,,.-[J].,2005,25(5):69-71.[4].[J].,2001,22(2):13-16.[5].()[J].,2003,24(12):58-59.[6],,,.[J].,2001,35(4):3-7.[7].[J].,2006,25(6):13-14.[8].[J].,2008,34(11):56-58.[](1972—),1995,。:025-85428910,E-mail:lichuan_2001@hotmail.com。[]2009-12-11()83——

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