分段进水生物脱氮工艺稳态模型的开发与试验评价(英文)-豆柴文库

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分段进水生物脱氮工艺稳态模型的开发与试验评价(英文)
Title:DevelopmentandExperimentalEvaluationofSteady-stateModelforBiologicalNitrogenRemovalinDividedInflowWastewaterTreatmentProcess
Abstract:
Wastewatertreatmentplantshavebeendevelopedextensivelytoensuretheprotectionofwaterresourcesandenvironment.Inrecentyears,dividedinflowwastewatertreatmentprocesshasgainedsignificantattentionduetoitseffectivenessinremovingnitrogenouspollutantsfromwastewater.Thisstudyaimedtodevelopasteady-statemodelforbiologicalnitrogenremovalindividedinflowwastewatertreatmentprocessandevaluateitsperformancethroughexperimentaltests.Themodelisbasedonaseriesofmassbalancesthatincorporatethemicrobialandchemicalreactionsinvolvedintheprocess.Thedevelopedmodelwasthenevaluatedusingexperimentaldataobtainedfromlaboratory-scalereactors.
Introduction:
Nitrogenpollutioninwaterresourcescanhavesevereimpactsonpublichealth,aquaticecosystems,andbiodiversity.Asignificantsourceofnitrogenpollutioniswastewaterfromdomestic,agricultural,andindustrialactivities.Wastewatertreatmentplantsareessentialinremovingnitrogenouspollutantsfromwastewatertoensuretheprotectionofwaterresourcesandenvironment.Biologicalnitrogenremoval(BNR)isoneofthecommonlyusedmethodsinwastewatertreatmentprocessesduetoitscost-effectivenessandsustainability.DividedinflowwastewatertreatmentprocesshasshownpromiseinimprovingtheefficacyofBNR.
Thedividedinflowprocessseparatestheinfluentwastewaterintotwoseparatesections,eachwithdifferentinfluentcharacteristics.Thefirstsectionreceivesahighnitrogenload,whilethesecondsectionreceivesalowernitrogenload.Thefirstsection,whichhasthehighestnitrogenconcentration,undergoesbiologicalnitrogenremovalthroughnitrificationanddenitrificationprocesses.Theeffluentfromthefirstsectionthenentersthesecondsection,whichisdesignedfornitrateremoval.Thesecondsectionusescarbonsources,suchasmethanoloracetate,tosupportthegrowthofdenitrifyingbacteria,whichconvertnitratetonitrogengas.
Asteady-statemodelforBNRindividedinflowwastewatertreatmentwasdevelopedtopredicttheperfo