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95Vol．9No．520155ChineseJournalofEnvironmentalEngineeringMay201511*12311.6505002.4000453.650500“”“”“”TN、、COD67.4%、87.2%、54.1%40.1%4.0～6.0mg/L。。X703A1673-9108201505-2317-07Pretreatmentofmicro-pollutedrawwaterbybiologicalcontactoxidationwithAquaMatsmediumLiChihao1ShiYongsheng1ZhaoXuan1ZhuYouli2GuanQingqing3ChenXin11.FacultyofCivilEngineeringandArchitectureKunmingUniversityofScienceandTechnologyKunming650500China2.FacultyofUrbanConstructionandEnvironmentalEngineeringChongqingUniversityChongqing400045China3.InstituteofEnvironmentalEngineeringKunmingUniversityofScienceandTechnolgyKunming650500ChinaAbstractWiththedevelopmentofeconomyinThreeGorgesReservoirareaalargenumberofpointsourceornon-pointsourcepollutantsaredirectlydischargedintowaterbodywithouteffectivetreatment．Thisineffectivetreatmentcausesthewatersourceusedasdrinkingwatertobecomethemicro-pollutedrawwater．Sincethecon-ventionalpretreatmentprocesscouldnotwelladapttothewaterqualitychangesofmicro-pollutedrawwatersourceanexperimentalresearchofpretreatmentofmicro-pollutedrawwaterwascarriedoutbyusingtheAqua-Matsmediumthathadformedmembranesuccessfullyandcomparingwithbiologicalcontactoxidationwithas-sembledmedium．TheresultsshowthattheAquaMatsmediumwhichhasformedmembranesuccessfullycouldhangthemembranequicklyandwelladapttothemicro-pollutedrawwatersource．ThereforethisAquaMatsmediumistheoptimalartificialmediumtoimprovethewaterqualityofmicro-pollutedrawwater．Inadditionforthesamemicro-pollutedrawwatersourcetheresultsshowthatcomparedwiththeassembledmediumtheAquaMatsmediumhasobviouslybettertreatmenteffect．UsingtheAquaMatsmediumtheaverageremovalratesofTNNH+4-NCODandTPinmicro-pollutedrawwaterpretreatmentare67.4%87.2%54.1%and40.1%respectively．Thesuitabledissolvedoxygenconcentrationinmicro-pollutedrawwatersourceforbiologicalcontactoxidationpretreatmentwiththeAquaMatsmediumis4.0～6.0mg/L．ThereforethecontactoxidationmethodwiththeAquaMatsmediumisaverygoodtechnologyforecologicalprotectionandwaterqualityimprovementofthedrinkingwatersource．KeywordsAquaMatsmicro-pollutedrawwaterbiologicalcontactoxidationartificialmedia2015－01－092015－03－011990—。E-maillichihaook@163．com*E-mail489609568@qq．com“”。“9”10。“”、《》、、、1-5。。、、。“”。1995。。1～5μm80～350μm250m26-9。“”“”“”。11．11m0.24m。。。2、、、、、、、。1。1Fig．1Schematicdiagramofexperimentalsetup1．2。0.4mL。NaH-CO3pH7.5～8.5。、NH4ClKNO3。KH2PO40.658mg/LCaCl22mg/LMgSO44mg/LNaCl4mg/LNaCl4mg/LFeSO4·7H2O2mg/L。FeCl3·4H2O10.0mg/LMnCl2·4H2O25.0mg/LNiCl·6H2O250mg/LEDTA5.0mg/LNH46Mo7O24·4H2O450mg/LNa2SeO3·5H2O500mg/LCoCl2·6H2O10.0mg/LZnCl2250mg/LCuCl2·2H2O150mg/LH3BO3250mg/L36%HCl5ml/L。5～25℃pH7.6～8.30.0877～2.09mg/L1.73～4.68mg/L0.0473～0.1318mg/LCOD8.7～11mg/L。1．31987《》10。DOYSIPRO20pHYSI-63pHCODNH+4-NTNTP。22．1MLSS5000mg/L。、81325。2∶3DO4.5～5.5mg/L24hpH7.5～8.515～20℃30%。80%4hDO4.5～5.5mg/LpH7.5～8.5。。COD21。2CODFig．2RemovalrateofNH+4-NandCODduringfilm-formingperiod2、4675.74%67.72%。COD51．94%43．59%。57COD。COD。COD。8d14d。1Table1Biomassofmediumduringfilm-formingperiodμgP/gdμgP/gμgP/g527．653．8020．832．5424．092．611046．7312．3738．638．7440．1910．731551．9720．3042．1517．3155．7125．532053．0234．1548．3826．2850．9528．39120d50.78P/g29.61μgP/g58.31%2＞＞。2．210dTN、NH+4-N、CODTPTN4～5mg/LNH+4-N3～4mg/LCOD4～6mg/LTP0．5～0．6mg/L30%～35%/HRT4hDO4.0～6.0mg/L。TN、NH+4-N、CODTP3。387.2%59.9%913293Fig．3Treatmenteffectofartificialmicro-pollutedrawwaterbyusingAquaMatsassembledmediumDO4.0mg/LDO。《GB3838-2002》2.0mg/LⅤ1.01.5mg/LⅢⅣ。TN67.4%43.8%TN。《》11TN4.6mg/LTN4.5mg/L。《GB3838-2002》TN2.0mg/LⅤTN2.0mg/L。3COD54.1%。COD10%～25%1213。CODCOD4.0mg/LⅡ。3TP40.1%TP26.8%。14。。2．3。、、HRTDO023252NH+4-N、TNCOD4。2Table2Experimentalwatercompositionsmg/LTN1．72．54．5725NH+4-N1．523．5520NO－3-N0．20．5122TP0．050．150．250．552COD2491215468%45%。75%53%。83%61%。86%63%。72%53%。COD20%CODCOD。COD65%COD56%。15。4TNNH+4-N4.5mg/L2.5mg/L4h8℃25℃TN2.96～1.77mg/LNH+4-N1.03～0.43mg/LTN34.2%60.7%NH+4-N52.8%82.8%TNNH+4-N。COD8mg/L4h123298℃25℃CODcr4．97～3.38mg/L。COD37.9%57.8%。《GB3838-2002》COD6mg/LⅣⅢ。4、CODTNHRT8h、CODTN91.2%、64.5%79.3%。DOCODDOCODDO45%～60%。NH+4-NDODO1.5～2.5、2.5～4.0、4．0～6.010．0～12.0mg/L56.39%、73.48%、85.33%88.17%TNDO。DO1.5～2.5、2.5～4.04．0～6.0mg/LTNDO34.62%、45.73%55.97%。DOTNDO10．0～12．0mg/LTN52．81%。NH+4-NDO2。SNH+4-N＞0.27SDODOSNH+4-N＜0.27SDO16。DO2.5mg/LDO1.5～12.0mg/LDODO。DO。DO4．0～6.0mg/L。318d14d。22。“”TN、、COD67.4%、87.2%、54.1%40.1%。3。DO4.0～6.0mg/L。1．．20042JiangJ．Q．GrahamN．J．D．EnhencedcoagulationusingAl/FeⅢcoagulantsEffectofcoagulanthanishyonthere-movalofcolourNOM．EnvironmentalTechnology1996179937-9503RandtkeS．J．Organiccontaminantremovalbycoagulationandrelatedprocesscombin-ations．AWWA198880540-454．．20035．．19996BoeijeGeertM．SchowanekDiederikR．VanrolleghemPeterA．Incorporationofbiofilmactivityinriverbiodegra-dationmodelingAcasestudyforlinearAlkylbenzenesul-phonateLas．WaterResearch20003451479-14867TerauchiN．OhtariT．AmanakaK．Y．etal．Studyonabiologicalfilterformustyodorremovalindrinkingwatertreatmentprocesses．WaterScienceandTechnology19953111229-2358ShigeoF．G．ChiakiiN．W．Pilot-plantexperimentsforIm-provementofpollutedcanalwaterbyrock-bedfiltration．WaterScienceandTechnology199735883-909Kyeong-HoL．Han