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作者简介:马邕文先生,副教授,博士;主要从事制浆造纸与污染控制方面的研究工作。 :2006-06-26() 2003A3040406。·废水处理·马邕文1 吴 娇1 万金泉1 王 培2 王 艳1(1.,,510640;2.,,510640) :。,pH6~7;20~40℃10℃,CODCr10,50℃,。,HRT,VFA,CODCr,HRT8h。:;;:X793 :A :0254-508X(2006)10-0022-03 COD、,[1-2]。COD,COD,。,。。[3-4]。,,、、、、[5-9],(HRT),。(70%),(、pH、HRT),。1 1.1 ,,,,,1[10]。,,,(),1。1 1 pHTCODCr/mg·L-1TBOD5/mg·L-1SCODCr/mg·L-1SBOD5/mg·L-1SS/mg·L-1VFA/mol·L-16.4122433011573181012.6 3。1,SCODCr(),TCODCr()94.5%;TBOD5()/TCODCr0.3,;SS();CODCr。。1.2 COD、BOD、SS、pH。SCODSBOD。VFA()VFA·22·ChinaPulp&Paper Vol.25,No.10,2006[3]。1.3 1∶1,,,1d,,。2 2.1 pHpH,2。4L,,,,pHpH。pHpH、、NaOH。30℃,HRT24h(,HRT24h),pH。TCODCr:1310mg/L,SCODCr:1258mg/L,SBOD5:314mg/L,VFA:12.4mol/L。3,pH。(pH7),CODCrpH,CODCrpH421.1%pH751.6%,pH5~7CODCr,;pH,(pH7~8),CODCr,;BOD5。4,pH46,VFA,pH,HRT,VFA。2.2 pH7,,。,,20、30、40、50℃,CODCr794、634、502、917mg/L(2.1)。20℃、30℃40℃CODCr39.4%、51.6%61.7%,10℃,CODCr10,,20~40℃。50℃,CODCr30%,50℃,。2.3 HRTHRT、,10L,,,HRT,30℃,pH7,5。HRT1h。CODCr,HRT,HRTCODCr。TCODCr1190mg/L,SCODCr1120mg/L,SBOD5311mg/L,VFA14.4mol/L。67,HRT8h,CODCrHRT,VFA,()(),VFA,CODCr,VFA;HRT8h,CODCr,,VFA,,CODCr,,,,CODCr,HRTVFA,1— 2—pH 3—4—NaOH 5—2 3 pHCODCrBOD54 pHVFA·23· 《》200625101— 2— 3—4— 5— 6—pH7—NaOH 8—5 6 HRTCODCrBOD57 HRTVFACODCrVFA。HRT8hCODCrVFA,HRT8h,,。HRT[3],,。3 3.1 pH6~7,pH7CODCr,51.6%,pH4,。20~40℃10℃,CODCr10,(50℃)。HRT,VFA,CODCr。3.2 ,40℃,,35~40℃,;,SS,,pH6~7,;,HRT,,HRT。HRT6~8h,HRT,VFA,,NaOHpH,。[1] , .[J].,2000(4):42[2] .[J].,2000,19(1):24[3] ,.[M].:,2004[4] .[M].:,2003[5] , .———[J].,2002,18(11):75[6] .[J].,2001,30(9):32[7] ,,.———[J].,2003(3):48[8] , ,.[J].,2002,33(4):39[9] ,,.———[J].,1997,16(3):30[10] ,, ,.OCC[J].,2003,22(12):1StudyonHydrolytic-Acidification(HA)duringtheTreatmentofWastewaterinRecycledFibersbaseMillsMAYong-wen1 WUJiao1,* WANJin-quan1 WANGPei2 WANGYan1(1.CollegeofEnvironmentScienceandEngineering,SouthChinaUniVersityofTechnology,Guangzhou,GuangdongProvince,510640;2.CollegeofResourcesScience&PapermakingEngineering,SouthChinaUniversityofTechnology,Guangzhou,GuangdongProvince,510640)(*E-mail:wujiao821019@163.com)Abstract:Severalexperimentswerecarriedoutinlabtostudythefactorsaffectinghydrolytic-acidificationduringthetreatmentofwastewaterinrecy-cledfibersbasemills.BatchtestssuggestedthatitwassuitableforacidificationatpH6~7,CODremovalratereached50.6%atpH7,theeffluentCODobviouslyincreasedatpH4.CODremovalrateincreased10%withevery10℃increasedat20~40℃.TheeffectofHAbecameworseat50℃.Continuous-flowtestsindicatedthattherewasaincreasingtendencyforCODremovalratewithlongerHRT,andVFAconcentrationincreasedfirstlyandthendecreasedwiththeHRTcontinuouslyprolonged.HRTat8hourscanbedefinedasthedividingpointoftwoHAphases.Keywords:hydrolytic-acidification;wastewater;recycledfibersbasepapermaking CPP(责任编辑:田风洲)·24·ChinaPulp&Paper Vol.25,No.10,2006
本文标题:废纸造纸废水的水解酸化处理
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