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GB3838-2002[1]。2009408~24.3%18.4%2623.1%19.2%34.6%。、[2]。、。、、、、[3]。。11.1、、、、、[4]。1。0.35mL·g-15~40nm13nm22.1nm。1.2、、、、10~26.7℃pH6.7~8.3CODMn5~13mg·L-1NH3-N5~11mg·L-1。112211.2100082.210037CODMnNH3-NCODMnNH3-N。CODMnNH3-N4m3·m-2·h-111CODMnNH3-N35%99.5%。TQ028.8TU991.2A1000-3770(2011)08-0091-0042010-11-171978-E-mailnjszyky@126.comE-mailnjszshenwei@163.com5.81FeCaMgTi1.380.620.61OSiAl43.0533.1315.401ω/%Tab.1Chemicalingredientoftheattapulgitecompositefilter(ω/%)37820118TECHNOLOGYOFWATERTREATMENTVol.37No.8Aug.,201191DOI:10.16796/j.cnki.1000-3770.2011.08.0221.31。10cm、230cm20cm120cm。20cm。40cm。1.4CODMn、NH3-N。CODMnNH3-N[5]。22.1112、4、6、8m3·m-2·h-1CODMnNH3-N23。24CODMnCODMn4m3·m-2·h-1。、、。。CODMn[6]。HRTCODMn。6m3·m-2·h-1HRT0.2hCODMn8m3·m-2·h-1HRT0.15hCODMn15.5%CODMn。、COD。CODMn4m3·m-2·h-1。34NH3-NNH3-N4m3·m-2·h-1CODMn。。NH3-N。NH3-NNH3-NNH3-NHRT04812162024283202468101214 /d(NH -N)/mg·L 020406080100/%3NH3-NFig.3TheremovalofNH3-Nunderdifferenthydraulicload2CODMnFig.2TheremovalofCODMnunderdifferenthydraulicload04812162024283202468101214COD /mg·L /d 020406080100/%1Fig.1Thediagramofattapulgitebiologicalaerationfilter 378926Fig.6TheSEMofattapulgitecompositefiltermaterial'ssurfaceandsectionintheBAFlower6a4000×6b4000×NH3-N[7]。NH3-N4m3·m-2·h-1。2.20.51、11、1.514m3·m-2·h-1CODMnNH3-N45。4CODMnDODO。DO2mg·L-10.5111DO、CODMn。111.51[8]。CODMn11。5NH3-N。DONH3-NDO4mg·L-10.51DO75%DO[9]。11NH3-N95.62%1.5111DONH3-NNH3-N。NH3-N11。2.3SEM2FEIQUANTA2006~8。SEM1nm[10]5NH3-NFig.5TheremovalofNH3-Nunderdifferentgaswaterratio02468101214161820024681012(NH -N)/mg·L /d 0102030405060708090100/%4CODMnFig.4TheremovalofCODMnunderdifferentgaswaterratio02468101214161820024681012 /dCOD /mg·L 051015202530354045505560/%93。[11]、SEM。3CODMnNH3-N。≥10℃pH6.7~8.3CODMn5~13mg·L-1NH3-N5~11mg·L-1CODMnNH3-N4m3·m-2·h-111。4m3·m-2·h-111CODMn35%NH3-N99.5%。、。。[1],,.[J].,2008,36(11):4672-4673,4685.[2],,,.[J].,2006,32(8):67-69.[3],,.[J].,2010,28(8):466-469,494.[4],,,.[J].,2009,18(2):155-159.[5]《》.[M].4.:,2002.[6],.[M].:,1999.[7].[M].:.2006.[8],,.[J].,2005,21(6):38-40.[9],,,.[J].,2009,25(18):65-70.[10].[M].:,2007.[11].[J].,2010,32(3):138-144.8Fig.8TheSEMofattapulgitecompositefiltermaterial'ssurfaceandsectionintheBAFupper8a8000×8b4000×7Fig.7TheSEMofattapulgitecompositefiltermaterial'ssurfaceandsectionintheBAFmiddle7a4000×7b4000×STUDYONPRETREATMENTOFMICRO-POLLUTEDSOURCEWATERBYATTAPULGITEBIOLOGICALAERATIONFILTERKongYu1,ShenWei1,WangZheng2,LinZizeng2,YangKaiCheng1(1.NanjingMunicipalDesignandResearchInstituteCO.,LTD,Nanjing210008,China;2.CollegeofCivilEngineering,NanjingForestryUniversity,Nanjing210037,China)Abstract:Attapulgitebiologicalaerationfilterwasemployedforthepretreatmentofpermanganateindex(CODMn)andammonianitrogen(NH3-N)frommicro-pollutedsourcewater.TheremovalcharacteristicofCODMnandNH3-Nunderdifferenthydraulicloadandgaswaterratiowereinvestigated.Meanwhile,observationoforganism'sformofattapulgitecompositefiltermaterialfromdifferentfilterdepthwasmeasuredbyscanningelectronmicroscope.Theresultsshowedthat,attapulgitebiologicalaerationfiltercaneffectivelyremoveCODMnandNH3-N.Theoptimumhydraulicloadwas4m3·m-2·h-1andtheoptimumgaswaterratiowas1:1.ThehighestremovalrateofCODMnandNH3-Ncanachieve35%and99.5%respectively.Therewerelargedifferencewithfiltermaterial'ssurfaceandsectionfromdifferentheightinmicroorganismgeneraandbiomass.Keywords:attapulgitecompositefiltermaterial;biologicalaerationfilter;pretreatment;micro-pollutedwater37894
本文标题:凹凸棒曝气生物滤池预处理微污染原水研究孔宇
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