处理木薯淀粉废水的厌氧反应器初次启动方法研究任伯帜

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,,(,411201)[]EGSB、、。,pH6.8~7.6,VFA1000mg/L,26~28℃,,100d,,COD86%,,,。[];;[]X703[]B[]1005-829X(2012)09-0081-04Studyontheinitialstart-upmethodofanaerobicreactorfortreatingcassavastarchwastewaterRenBozhi,WeiXinghao,HouBaolin(SchoolofCivilEngineering,HunanUniversityofScienceandTechnology,Xiangtan411201,China)Abstract:Severalfactorssuchastheselectionofinoculatedsludge,methodofsludgeacclimatizationandtheconditionoftheanaerobicreactorcontrolfortreatingcassavastarchwastewaterwheninitiallystarted-uphavebeenstudied.Whentheanaerobicfermentedsludgeofthecassavaalcoholplantisselectedasinoculatedsludge,itspHshouldbecontrolledat6.8-7.6,VFA1000mg/L,andtemperatureat26-28℃,theinfluentwateracclimatizationinphasicmodeisused.Afterrunningforalmost100d,thegranularsludgethatissuitableforcassavastarchhassuccessfullybeencultivated.Undertheseconditions,theremovingrateofCODcouldbehigherthan86%,andtheanaerobicreactorhasstartedupsmoothlyandfluently,withstabletreatmenteffect.Keywords:cassavastarchwastewater;anaerobicexpandedgranularsludgebedreactor;start-up,1t25~30t,、。,,(3~4),。〔1-2〕,,UASB+〔3〕、EGSB+CASS〔4〕。,,80%~90%,。,,,。1,850m3/d,:COD9000~12000mg/L,BOD53800~6500mg/L,SS920~1200mg/L,TN390~530mg/L,3090~4100NTU,pH4.2~4.5。22.1EGSB。EGSB,,,6,D18000mm×18000mm,4578m3。2.2EGSB,3,,。COD86%,HRT5.2d,13.86kg/(m3·d),COD2000mg/L,。,COD78%~88%,,。32920129IndustrialWaterTreatmentVol.32No.9Sep.,2012[](50830301);(08A019)813EGSB,。、,、pH、VFA。3.1(55℃)、(35℃)(20℃)。,(),(20~25℃),。20~25℃,,。、。。±2℃,±3℃,±5℃,,。(101)。,33℃,。11,。,28℃,。3.2。、。,,。,,,。,,,。,,。。,。,4h,(∶=4∶1),3h,。20d,1∶1。,,,,。3.3。。,0.2kg/(m3·d)。COD,,。20%,,。,5~7d,。10d,。:,,,,;,,,,,。3.4。;,,。,。,。,。〔5〕,;〔6〕EGSB。3.5,16~20g/L,30%。;,。,。。,2012-09,32(9)82。,。,。50℃,TSS41.6g/L,VSS30.1g/L,900t。,25g/L。,。700t,;20d,200t。:,,,;,,,,。,。3.6pHpH6.5~7.5。pH(8.0)(6.0),。,pH。pH,,pH。pH,,pH,。,pH,。pH。,,pH7.0~7.5,。pH,。,,,。,,,,。,,,pH。3.7VFA、。,,(VFA),。,VFA。VFA1000mg/L。VFA<500mg/L,;VFA500~1000mg/L,,<20%;VFA>1000mg/L,:pH6.5,,VFA<1000mg/L;pH6.5,,,VFApH,75%,,pH,VFA。3.8N、P,m(COD)∶m(N)∶m(P)=200∶5∶1。,:(1)K、Na、Ca;(2)Ni、Co、Mo、Fe;(3)、、。、、、。、、、,。,,VFA,,,。。、、、。,,,,,。,,。4,,。1~4。1,COD70%,,85%,。3055,,。2,25pH6.6,,2012-09,32(9),:831COD2pH3VFApH,。3pHVFA,VFApH,pHVFA,pHVFA,。4VFA,。,VFA1000mg/L,。60,,,VFA,1120mg/L。、、,。,100。4VFACOD5,、。,pH6.5~7.6,VFA1000mg/L,,,26~28℃,5~7d,100d,86%,。,,。[][1],,.—EGSB—[J].,2011(7):125-126.[2],,,.——[J].,2010,33(12):25-27.[3].UASB/[J].,2009,25(1):68-71.[4],,,.UASB—CASS—[J].,2010,30(8):75-77.[5],,,.(UMAR)[J].,2008,29(12):3445-3449.[6],.EGSB[J].,2007,33(4):25-27.——————————[](1967—),,。E-mail:609856075@qq.com。[]2012-07-11()2012-09,32(9)84

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