旁路微氧污泥减量技术研究——污泥从好氧段到缺氧段减量效果及机理研究

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1、摘要(5)旁路微氧污泥减量技术对出水水质效果无明显影响，实验过程中出水水质指标均达到一级A标准。(6)微氧池污泥自身衰减及EPS离解释放是旁路微氧污泥减量技术的主要原因。关键词：旁路污泥减量技术，旁路微氧池，污泥衰减，EPS离解释放，ORPAbstractActivatedsludgeprocessesarethemostwidelyusedmethodsinwastewatertreatmentprocess．However,thehugevolumesofwastesludgeproducedintheprocessesarebigproblemsintoday’Swastewate

2、rtreatmentindustry．Becauseit’Snotonlyneedsexpensivetreatmentcosts，butalsoneedsadvancedtechnologiestotreatit．Atthesametime，nomatterhowcompletelythewastedsludgewasdisposedintheend，itwouldalsocauseenvironmentalpollutioninsomedegree．Thebypassmicro-aerobicsludgereductionprocessisahotareaofresearchinin

3、—situsludgereductiontechnologyinrecentyears，whichisanewprocessthatinsertamicro—aerobicsludgetankintothesludgeloop，inwhichaseriesofreactswasoccurredintheactivatedsludgeandthensendthembacktotheaerobictanktoachievethesludgereduction．Thispaperfocusedontheeffects，influencefactorsandthemechanismsofthes

4、ludgereductioninthemicro-aerobicsludgetank．AnditWasdemonstratedthatthisprocesscanachievewellsludgereductioneffects，andtheORP(Oxidation—ReductionPotential)level，MLSS(MixedLiquidSuspendedSolids)，SRT(SludgeRetentionTime)aretheessentialfactorsofthebypass-·micro··aerobicsludgereductionprocessthroughth

5、estudyofsludgereductioneffectsinthemicro—aerobicsludgetankunderdifferentMLSS，differentratioofaerobicsludgeandmicro—aerobicsludge(Q)，differentORP,differentSRTanddifferentoperationconditions．Duringtheexperiment，singlevariablebatchexperimentswerefirstconducted，andthesludgereductioneffectsofthemicro．

6、aerobicsludgetankunderdifferentMLSSand0within10dayswereresearched；Andthentheexperimentunderdifferentoperationconditionswasconducted．Afterthebatchexperiment，continuousexperimentswerestartedoff,andthemicro—aerobicsludgetankoperatedwithsludgefeedinanddischargescontinuously；finally,themicro—aerobicwa

7、sconnectedtothewholesystem，andthesludgereductioneffectwasresearched，thatisthesludgeyieldoftheprocess．Thefollowingconclusionsweredrawnfromtheexperiments：(1)Thesludgereductionefficiencyofthemicro—aerobicsludgetankwasincr