高温条件下UASB反应器对苯酚的降解研究

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1、学校代号：学号：密级：10532S02015105湖南大学硕士学位论文古：日同皿X8325f17条件下UASB反应器对苯酚的降解研究堂僮史埴厶丝务；矍壹昱嘘丝刍墅眍拯!担盔刿副熬援墙菱望焦!±盔王翟堂睦重些名整!直照王猩论文提交日期：2005年04月17日逢塞簦鳢旦塑；2QQ5生Q5旦21旦签趱委虽金圭韪；蕉翅熬攫童堡重竺三竺垒!!星竺芝翌薹墼堕墼彗竺垒AbstractPhenoliSasortofmajorrawmaterialofchemicalindustryandalsothemainperniciouscompositionin

2、industrialwastewaters，whichleadstoseriousenvironmentalpollution．Investigationsofphenolwastewatertreatmentaresignificanttaskofenvironmentalprotection．Anaerobicwastewaterbiologicaltreatmenttechnologyisakindoflowcostwastewatertreatmenttechnologywhichcombineswastewatertreatme

3、nt．withenergyrecovery．Prospectsfortheanaerobicwastewatertreatmentareextremelypromising．Upflowanaerobicsludgebed(UASB)reactoristhemostprosperousanaerobicbiologicaltreatmentprocesswhichisbeingappliedextensivelytothetreatmentofvariousorganicwastewatersatpresent．UASBreactoris

4、anewtypeofbiochemicalanaerobictreatmentreactorwhichmeritsdevelopmentandapplications．Inthisstudy，thereactiontemperatureofUASBreactorwasincreasedfrommesophilietemperature(37℃)tothermophilictemperature(55℃)．Thefeasibilitystudyforstart—upofUASBreactoratthermophilictemperature

5、byusinggranularsludgeatmesophilictemperatureisinvestigated．UASBreactorwasusedtodegradethewastewatercontainingphenolatthermophilictemperature．Withglucoseasthesymbioticsubstrate，thegranularsludgewascultivatedanddomesticatedbygraduallyincreasingtheconcentrationofphenolanddec

6、reasethatofglucose．ThisstudyinvestigatesthelimitingconcentrationofphenolwhichUASBreactorcoulddegradeandtheactivityofthegranularsludge，discussestheoperatingperformanceoftheUASBreactoratvariousvolumeloadings，andsummarizestheoptimumvolumeloadingofdegradingphen01．Theresultsho

7、westhat，whentheHRTis30h，UASBreactorcandegradephenolattheconcentrationof2310mg／L(namely5500mgCOD／L)，thecorrespondingvolumeloadingis6．69COD／(L。d)．Iftheconcentrationexceedsthislimitingvalue，theactivityofgranularsludgeintheUASBreactorisseriouslysuppressed，andtheUASBreactorisq

8、uitedifficulttorecoVer．GranularsludgecanbecultivatedinUASBreactoratthermophilictemperature．TheSM