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1/6SimultaneousNandSremovalinwastewatertreatmentAbstractWiththedevelopmentofeconomyandtheimprovementofstandardliving,largeamountofwastewatersaregenerated.Thewastewatersfromindustry,agricultureandhousingsettlementscontainnitrogenandsulfurcompounds.Nitrogenandsulfurpollutionhasalreadyposedhazardouseffectsonhumanhealthandecologicalsafety.Hence,howtotreatsuchwastewatereconomicallyandefficientlyisoneofthemostpopularenvironmentaltopicsinrecentyears.IthasbeenshownthatsomebacterialspecieslikeThiobacillusdenitrificanscanoxidizesulfidetoelementalsulfursimultaneouslyreducingnitratetodinitrogen.Forsuchreasons,thesimultaneousanaerobicsulfideandnitrateremovalprocesshasbeendeveloped.Inthisresearch,theprocesswasstudiedfromoperatingconditionsandmicrobialproperties.2/6H2SNH4+(ANAMMOX)(SHARON)(OLAND)(CANON)(SHARONANAMMOX)NH4+NSO42-(SRB)(SOB)SRBSO42-SOBS1.1.12SRBSOBH2SpHSRBH2SSOBJ.P.Maree1.2//A/OA2/OBardenpho-N.europaeaN.eutrophaN.halophila/SHARON-ANAMMOXCANONOLAND3/6SRBSRBNO2-NON2OSRBDesulfovibriodesulfuricans/2.2.1/NO3NO2SO42S19780.422H2S+0.422HS-+NO3-+0.347CO2+0.0865HCO3-+0.0865NH4+0.844SO42-+0.5N2+0.0865C5H7O2N+0.409H+NO3-1.96S2O32-12H++2NO3-+5S2-N2+5S+6H2O5S+6NO3-+2H2O5SO42-+4H++3N2S/NS/N5/3300mg/LSHERNO3-SSO42-NO3-NO2-NO3-SSO42-SS2.2PlanctomycetalesAnammoxaceae2.2.14/62000FDZPOLANCON2(TKN)50%N2SO42-S20%S2-SH2SS80%SN2SO42-2NH4+SN24H2OG-47.8KJ/mol3SO42-4NH4+3S2-4NO2-4H2O8H+3S2-2NO2-8H+3SN24H2O2NO2-2NH4+2N24H2OCODNH4+N(pH7.18)2.2.2LIUNH4+SO42-N/S1.71~1.75FDZPOLANCOSO42-NH4+NO2-SN2S/N3:4SSO42-3S2-2NO2-4H2OSO42-2S8OH-2N2S/NSO42-SO42-NO2-NO2-NH4+SO42-SS3.-125/6344.[1]FERNANDOFDZ-POLANCONEWPROCESSFORSIMULTANEOUSREMOVALOFNITROGENANDSULPHURUNDERANAEROBICCONDITIONSWat.Res.Vol.35,No.4,pp.11111114,2001[2]YonatanSherKennethSchneiderCarstenU.SchwermerJaapvanRijn.Sulfide-inducednitratereductioninthesludgeofananaerobicdigesterofazero-dischargerecirculatingmariculturesystem.waterresearch,42,43864392,2008.[3]XijunXu,ChuanChen,AijieWang.Simultaneousremovalofsulfide,nitrateandacetateunderdenitrifyingsulfideremovalcondition:Modelingandexperimentalvalidation.JournalofHazardousMaterials.364.16-24.2014[4]SitongLiu,KenjiFurukawa.Applicationofanaerobicammonium-oxidizingconsortiumtoachievecompletelyautotrophicammoniumandsulfateremoval.BioresourceTechnology99.68176825.2008.[5]Tian-weiHao,Guang-HaoChen.Areviewofbiologicalsulfateconversionsinwastewatertreatment.waterresearch.65.1-21.2014.[6]ReyesSierra-Alvarez,JimA.Field.Chemolithotrophicdenitrificationwithelementalsulfurforgroundwatertreatment.waterresearch.41.12531262.2007.[7]CarmenFajardo,RamnMndez.Crosseffectoftemperature,pHandfreeammoniaonautotrophicdenitrificationprocesswithsulphideaselectrondonor.Chemosphere.97.1015.2014.[8]JanVymazal.Theuseofhybridconstructedwetlandsforwastewatertreatmentwithspecialattentiontonitrogenremoval:Areviewofarecentdevelopment.waterresearch.47.4795-4811.2013.[9]LiangweiDeng,LiSong.Processofsimultaneoushydrogensulfideremovalfrombiogasandnitrogenremovalfromswinewastewater.BioresourceTechnology.100.56005608.2009.[10]EleniVaiopoulou,AlexanderAivasidis.Sulfideremovalinwastewaterfrom6/6petrochemicalindustriesbyautotrophicdenitrification.WaterResearch.39.41014109.2005.