改进型CRI系统总氮去除效果试验研究范兴建

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(Constructedrapidinfiltrationsystem,CRI)()[1],,、、、、、、。CRI、、,。,CRI,CRI,(GB18918-2002)A,COD、BOD、SS、85%[2-3]。,[4-5],CRI(Ammonia-nitrogen)90%,(Totalnitrogen,TN),20%,“,”。,,,TN。11.1CRI,180cm,22cm,0.038m2,150cm。、、。1。1CRIFig.1Structureoforiginalconstructedrapidinfiltration1#2#3#4#5##6#5%5%200mm700mm600mm300mm200200200200100300300300220mmCRI1,2,1,3,1,1(1.,610031;2.,210007;3.,610041):CRI,,,TN。,,,COD,90cm70cm;2:1TN1:1,TN64.8%,(GB18918-2002)A;TN,,30cm。:CRI;;;;:X703.1:A:1000-3770(2009)10-070-03:2009-03-13:(2006Z10-009):(1984-),,,:15951853955;E-mail:xingjianfan@163.com3510200910TECHNOLOGYOFWATERTREATMENTVol.35No.10Oct.,200970DOI:10.16796/j.cnki.1000-3770.2009.10.017CRI180cm,150cm,22cm,0.038m2。,()2cm×2cm;(),40cm,80cm;,60cm,10cm,。70cm90cm,C/N。CRI1。1.2,:→→→→CRI→。1.3,1m·d-1,4,1.5h,9.5L,-TN[6]。1.4CRITNCRI,,COD,TN。TNCRI2,0cm,150cm。2,CRITN,29.8%。,,,,、。,;,,。22.1TNTN,(0cm),70、90cm,(0cm/70cm0cm/90cm),,TN。2.1.11:11:1,CRITN3。3,1:1,70cm90cm,TN。2.1.22:12:1,CRITN4。4,2:1,70cm90cm,TN。CRI,,--。[7],60cm,/cm020406090120140150ρ(TN)/mg·L-1/%23.5-22.63.8321.48.9420.313.6219.019.117.625.116.828.516.529.82TNTable2Concentrationandremovalefficiencyoftotalnitrogenindifferentdepthoutflow70cm90cmρ(TN)/mg·L-1/%ρ(TN)/mg·L-1/%35.5-34.2-29.417.227.818.724.132.124.328.923.932.721.936.0/cm0()105140150()31:1TNTable3Removalefficiencyoftotalnitrogenofsubsectionintake(Intakeratio=1:1)70cm90cmρ(TN)/mg·L-1/%ρ(TN)/mg·L-1/%24.0-29.00-14.838.320.529.311.253.314.948.69.2561.510.264.8/cm0()105140150()42:1TNTable4Removalefficiencyoftotalnitrogenofsubsectionintake(Intakeratio=2:1)/cm/mm0~30--30~90+5%0.1~0.590~160+5%0.25~20~10--10--1210~800.25~2160~1804~4031CRITable1Structureofimprovedconstructedrapidinfiltration,CRI71,。,,,TN。CRITN,90cmTN。90cm,,,。2.1.3TN,90cmTN。2:1TN1:1。TN64.8%,(GB18918-2002)A。,C/N。COD,90cm,C/N5。5,2:1,C/TN2.75~8.24,。1:1,,,,TN。C/TN,5,1:12:1,。2.2TN,90cm,2:1,CRITN。,。,。TN6。6,、,TN。30cm50、60cm,,。CRI,,,TN。3CRI,TN。,,,COD。,90cm70cm;C/TN,2:1TN1:1;,,,30cm。CRITN,,CRI。:[1],.:,CN1676469[P].2005-10-05.[2],,,.[J].,2003,11(4):370-377.[3],,,.[J].,2003,21(6):32-35.[4].[D].:,2006,5.[5].[D].:,2002,5.[6]《》.[M].4.:,2002.[7].[D].:,2008,11.1:12:1COD/mg·L-1ρ(TN)/mg·L-1C/TNCOD/mg·L-1ρ(TN)/mg·L-1C/TN20134.25.8823929.08.2411627.84.1714820.57.2258.024.32.3961.214.94.1132.721.91.4928.010.22.75/cm0()105140150()5C/NTable5C/NofdifferentsamplingplacesCOD/mg·L-1/%ρ(TN)/mg·L-1/%439-29.0-46.789.611.859.342.190.412.158.328.093.612.955.5/cm3050606TNTable6Removalefficiencyoftotalnitrogenofdifferentheightoverflowpool(85)351072(72)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!APPLICATIONOFREVERSEOSMOSISTECHNOLOGYINTHETREATMENTOFHIGHLYMINERALIZEDMINEWATERYangHuimin,HeXuwen,HeYong(SchoolofChemicalandEnvironmentEngineering,ChinaUniversityofMining&Technology,Beijing100083,China)Abstract:Thereverseosmosis(RO)technologywasadoptedtotreatminewaterwithhighsalinity,inwhichtheremovalofvariousionsintheminewaterbytheusageofCPA(CompositePolyamide)membranewereinvestigated.Theresultsshowedthat:duringthe24dofsystemsoperation,thetreatmenteffectofROprocessintreatingthecoalminewaterwasgood,theaverageremovalratesofvariousionscouldreachabove98%(Ca2+),above94%(Cl-),above98%(SO42-)andabove95%(Mg2+)respectively,thesystemeffluentqualityisstableandthetesteditemsoftheeffluentmetthenationaldrinkingwaterstandards;andthepollutioncharacteristicsofROmembranewassummarizedaccordingtothestaticcleaningofthepollutedmembrane,finallytheoptimalwashingprocesswasdetermined,thatiswashingtheROmembranefirstlybyalkaliandlaterbyacid.Keywords:reverseosmosis(RO);coalminewater;highsalinity;ROmembrane,,。98%(Ca2+)、94%(Cl-)、98%(SO42-)、95%()95%(Mg2+)。。,。,RO,,,;,RO,,。:[1],.[J].,2008,34(8):194-195.[2].[J].,2005(1):49-51.[3],,,.[J].,2002,31(6):618-621.[4]KalisK.Evaluationofcommercialultrafiltrationsystemsfortreatingautomotiveoilywastewater[J].WaterEnviromentRe-search,1998,70(7):1280-1289.[5]GraafV.ExperimentsonmembranefiltrationofeffluentatwastewatertreatmentplantsintheNetherlands[J].WatSciTech.,1999,39(5):129-136.[6].[M].4.:,2002:254-286.TOTALNITROGENREMOVALEFFICIENCYOFIMPROVEDCONSTRUCTEDRAPIDINFILTRATIONSYSTEMFanXingjian1,2,FuYongsheng1,LiuFang3,XueDan1,XuWenlai1(1.SchoolofEnvironmentalEngineeringSouthwestJiaotongUniversity,Chengdu610031,China;2.JiangsuEastChinaGeologicalConstructionGroupCO.,LTD,Nanjing210007,China;3.SichuanEnvironmentalProtectionTechnologyEngineeringCO.,LTD,Chengdu610041,China)Abstract:Takingimprovedconstructedrapidinfiltrationsystemasexperimentaldevice,schoolyarddomesticsewageasobject,themethodsofaddingsub-sectionintakeandoverflowpoolwasusedtostudythetotalnitrogenremovalefficiencyofimprovedconstructedrapidinfiltration.Theresultsshowedthatthesubsectionintakesettingonthedenitrificationsegmentissuitable.Ontheonehand,itcanpromotetherateofdenitrificationreaction;ontheotherhand,CODcanbeeffectivelydegraded.Thetotalnitrogenremovalefficiencyof2:1isbetterthan1:1,itcanreach64.8percent,andtheoutflowcanmeetnationaldischargestandard.Theheightofoverflowpoolhaslittleinfluenceontotalnitrogenremovalefficiency.Wheneconomyisconsidered,t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