改良A2O工艺对低碳源污水的脱氮除磷性能分析李思敏

A2/O056038C/NA2/O。A2/OA2/O。A2/O。A2/OX703B1000－4602201312－0025－05AnalysisofNitrogenandPhosphorusRemovalfromLow-carbonMunicipalSewagebyModifiedA2/OProcessLISi-minDUGuo-shuaiTANGFeng-bingCollegeofUrbanConstructionHebeiUniversityofEngineeringHandan056038ChinaAbstractConsideringthelowefficiencyinnitrogenandphosphorusremovalfrommunicipalsew-agewithlowC/NratiosseveralexistingimprovedA2/Oprocessesweredescribedandtheiradvantagesanddeficienciesinthetreatmentoflow-carbonmunicipalsewagewerepointedout．Inviewofthedefi-ciencyofexistingA2/OanditsmodifiedprocessesanewmodifiedA2/Oprocesswasproposed．Rawsewagewasfedintoanaerobictankandanoxictankinacertainproportionwhichcoulddistributecarbonsourceforanaerobicphosphorusreleaseandanoxicdenitrificationreasonably．Somemediawereaddedinanoxictankandaerobictankrespectivelywhichenabledtheprocesstohavetheadvantagesofsuspendedsludgeandbiofilmandimprovedtheperformanceofnitrogenandphosphorusremoval．Theeffluentsfromanaerobictankandanoxictankwerebothfedintoaerobictankdirectly．ThetestresultsshowedthatthenewmodifiedA2/Oprocesswaseffectiveinnitrogenandphosphorusremovalfromlow-carbonmunici-palsewage．KeywordsmodifiedA2/Oprocessmedianitrogenandphosphorusremovallowcarbonsourcemunicipalsewage2012ZX0720300312966738D1213109010G1。C/N·52·291220136CHINAWATER＆WASTEWATERVol．29No．12Jun．2013、95%《》GB18918—2002A2。C/N。A2/O3～5A2/O、、、。A2/OA2/O。1A2/OA2/OA2/OA2/O、UCT、VIP、BCFS。A2/O。C/N。1.1A2/O—BAFA2/O。、、、、67。A2/O2891A2/O—BAF。1A2/O—Fig．1SchematicdiagramofA2/O－BAFsystemA2/OA2/O、。A2/OC/NA2/O—BAF、。。1.250mg/L。。10112。2Fig．2FlowchartofcombinedprocessofbiologicalandecologicaltreatmentA2/OCOD1、、、、、、、《》GB3838—2002Ⅳ、、、。·62·2912．watergasheat．com。。1.3A－A2/OA2/O12A2/O。N2。A－A2/O3。3A－A2/OFig．3SchematicdiagramofA－A2/OsystemA－A2/O、、。BOD5/TN＜4A。13A－A2/O。。2A2/O2.1A2/OA2/O4A2/O。。。4A2/OFig．4SchematicdiagramofmodifiedA2/OsystemA2/OA2/O、、。。。14。Lai15A2/OCOD、TNTP。Artiga1660%。1718。。、。。。19A2/O－MBR。Rogalla20·72·．watergasheat．comA2/O2912。2.2A2/O。19～28℃、1∶1∶35∶511h2mg/L50%200%3000～4000mg/L15d。COD=182～326mg/LNH3－N=23．0～38．1mg/LTN=36．0～50．7mg/LTP=3．99～5．08mg/LC/N6．2A2/ONH3－N90%TN67%～76%＞89%COD=24．5～35．8mg/LNH3－N＜0．67mg/LTN=10．2～13．4mg/LTP=0．35～0．48mg/LA。A2/O。3A2/OC/N、A2/OBCFSA2/O。A2/OA2/O。NH3－N＞90%TN67%～76%＞89%NH3－N＜0．67mg/LTN=10．2～13．4mg/LTP=0．35～0．48mg/L。、、、、A2/O。1EkamaGAWentzelMC．DifficultiesanddevelopmentsinbiologicalnutrientremovaltechnologyandmodellingJ．WaterSciTechnol19993961－11．2．A2/O－C/NJ．201030101957－1963．3LimE-TJeongG-TBhangS-Hetal．Evaluationofpi-lot-scalemodifiedA2Oprocessesfortheremovalofnitro-gencompoundsfromsewageJ．BioresourTechnol2009100246149－6154．4．5F－A2/O—M．2009．5．A2/OM．2009．6．J．2008241410－14．7．J．2009251292－95．8．A2/O－J．2011271029－32．9．A2/O－J．2011623797－804．10．－J．2008404·82·2912．watergasheat．com650－655．11．－J．20063481061－1065．12．A－A2/OJ．20083112150－152．13．A2/OD．2010．14．J．2008311101－105．15LaiTMDangHVNguyenDDetal．WastewatertreatmentusingamodifiedA2/OprocessbasedonfiberpolypropylenemediaJ．JEnvironSciHealth201146101068－1074．16ArtigaPOyanedelVGarridoJMetal．Aninnovativebiofilm-suspendedbiomasshybridmembranebioreactorforwastewatertreatmentJ．Desalination20051791/3171－179．17GonzalezBCSpínolaALGLamonAWetal．TheuseofmicrosensorstostudytheroleoftheloadingrateandsurfacevelocityonthegrowthandthecompositionofnitrifyingbiofilmsJ．WaterSciTechnol20116481607－1613．18LoIW．Nitrousoxideemissionandnitrogentransforma-tiondynamicsinhybridsimultaneousnitrificationandphosphorousremovalsystemD．CanadaUniversityofBritishColumbia2008．19．A2/O－MBRJ．201153579－583．20RogallaFJohnsonTLMcquarrieJ．Fixedfilmphos-phorusremoval—flexibleenoughJ．WaterSciTechnol2006531275－81．1968－、。[e-mail]櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆2012－12－0524。4。、、。1．J．2010361120－123．2．J．2010262425－28．3．J．201026432－34．4．J．201238445－47．1978－、、。[e-mail]2013－01－02·92·．watergasheat．comA2/O2912