高盐废水生物处理研究现状及进展

ResearchStatusandDevelopmentofBiologicalTreatmentofHighSalinityWastewaterYANGJingJINXiao-liZHENGTian-tianShenyangNormalUniversity,LiaoningShenyang110034ChinaAbstract:Highconcentrationsaltsinthehighsalinitywastewaterhaveinhibitoryeffectsonmicroorganisms.Traditionalphysico-chemicaltreatmentcostsmuch,anditisdifficulttoachievethedesiredpurificationeffect.Now,thebiologicaltreatmentofsuchwastewateristhefocusofstudyathomeandabroad.Inthisarticle,sourcesofhigh-saltwastewaterwereintroducedaswellascharacteristicsofhalophilicbacteria,researchprocessinthebiologicaltreatmentofhighsalinitywastewaterwasdiscussedaswellasitsapplicationstatusanddevelopmentdirection.highsalinitywastewaterhalophilicbacteriumsituationdevelopmentdirection421,,.[J].,2004,33(5):276–279.2.[M].:,1995.3,,,.[J].,2001(3):39–42.4.[M].:,1989.StudyonTreatmentofPhenolWastewaterbyModifiedBentoniteLIXiao-ying(JinzhouPropagandaandEducationInformationCenterofEnvironmentalProtection,LiaoningJinzhou121000,China)Abstract:Thetreatmentofphenolwastewateroverbentonitemodifiedwithcetyltrimethylammoniumbromide(CTAB)wasstudied.Throughexperiments,effectsofadsorbingtemperature,adsorbingtime,pHofwastewaterandmodifiedbentonitedosageonremovalrateofphenolinthewastewaterwereinvestigated.Theexperimentalresultsshowthattheoptimumadsorptionconditionsareasfollows:adsorbingtemperature25,adsorbingtime60min,pHofwastewater5,modifiedbentonitedosage2.5g.Underaboveconditions,theconcentrationofphenolinwastewatercanbedecreasedfrom1000mg/Lto77.9mg/Lin50mLsimulatedphenolwastewater,theremovalrateofphenolcanreach92.21%.Keywords:modification;bentonite;phenolwastewater;adsorption