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1、MineWaterEnviron(2013)32:170184DOI10.1007/s10230-013-0218-8TECHNICALARTICLERemovalofMetalsandAcidityfromAcidMineDrainageUsingMunicipalWastewaterandActivatedSludgeTheresaA.Hughes•N.F.GrayReceived:24August2012/Accepted:20February2013/Publishedonline:5March2013ÓSp
2、ringer-VerlagBerlinHeidelberg2013AbstractCo-treatmentofacidminedrainage(AMD)and6075%forMn.Theseempiricalfindingsareusefulformunicipalwastewater(MWW)usingtheactivatedsludgedevelopingprocessdesignparametersinco-treatmentprocessisaninnovativeapproachtoAMDremediatio
3、nthatsystems.UtilizingMWWandactivatedsludgetoremediateutilizesthealkalinityofMWWandtheadsorptiveprop-AMDcanpotentiallyreducematerialsandenergyertiesofthewastewaterparticulatesandactivatedsludgerequirementsandassociatedcosts.biomasstobufferacidityandremovemetals
4、.ThecapacityofthesematerialstotreatAMDwasinvestigatedinbatchKeywordsAdsorptionCo-treatmentNeutralizationmodemetalremovaltestsusinghigh-strengthsyntheticTreatmentWastewatertreatmentplantAMD(pH2.8,Al120200mg/L,Cu1830mg/L,Fe324540mg/L,Mn1830mg/L,andZn3660mg/L)
5、.UsingmaterialfromarangeofMWWtreatmentplants,theIntroductionperformanceofscreenedandsettledMWW,activatedsludgeswithmixedliquorsuspendedsolids(MLSS)con-Acidminedrainage(AMD)generatedduringtheoxidationcentrationsof2.0and4.0g/L,andreturnactivatedsludgesofmineralsu
6、rfacesexposedduringmineralextractionwith6.0and7.4g/LMLSSwerecompared.Similartrendsleadstothereleaseofdissolvedmetals,sulfate,andwereobservedfortheMWWandactivatedsludges,withhydrogenions(StummandMorgan1981)intooverlyingorremovalefficiencygenerallydecreasingintheo
7、rderinfiltratingwatersandcanseverelydegradewaterqualityAl=Cu[Mn[Zn[Fe.TrendsinFeremovalusinginsurfacewatersandunderlyingaquifersinthevicinityofsettledMWWandactivatedsludgeswerehighlyvariable,themine(Mlayahetal.2009;WolkersdorferandBowellwithremoval30%.Usingacti
8、vatedsludges,average2004).ThekeytreatmentprocessesrequiredtoremediateremovalefficienciesforAl,Cu,Mn,andZnwere1065%,AMDaremetalremovalandacidneutralization,bothof2060%,1025%,a
