biodegradationoflinearalkylbenzenesulfonatebysequencingbatchreactorinsanitarywastewater

introduction:detergentsleadtomanyenvironmentalproblems.themainaimofthisstudywastoevaluatesequencingbatchreactor(sbr)efficiencyonlinearalkylbenzenesulfonate(las)removal. methods:inthisexperimentalstudy,toinvestigatetheremovalefficiencyoflas,asbrreactorwasused.aroughly12-houroperatingcyclewaschosenwhichincludedthedischargetime(30min),thefillingtime(60min),andsedimentation(1hr),whiletheremainingtimewasdevotedtoaerating.inthisresearch48samplesweretakenandanalized.samplingandtestingwereperformedaccordingtothestandardmethodsofwaterandwastewaterexamination. results:theresultsshowedthatminimumandmaximumremovalefficienciesoflasinsbrreactorwere92%and99.5%,respectively.theaverageremovalofcodwas92%.itwasobservedthat1mg/lusedsurfactantsproduced2.3±0.3mgcod. conclusion:itcanbeconcludedthatsbrreactoriscapableofremovinglastomeetdesirableenvironmentalstandards.