复合垂直流人工湿地对TN去除效果的正交试验李芳

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14:2010-05-10:“”(2008BAD96B04);(2007GZC0843):(1985-),,,,,()18608772010()lifang_87@hotmail.com。,。,,[1]。,[2],,,,-、,,;[3]。,。,,、、[4],。,[5]、pH;Bayley[6]TN,(,330013):,,TN。,、、pH,TN,。,TN,4、、pHTN,8,40mm/d,pH7,1000mm,TN。:;;TN:X703.1:A:0439-8114(2011)14-2859-03OrthogonalExperimentalStudiesonInfluenceofIntergratedVerticalFlowConstructedWetlandonTotalNitrogenRemovalLIFang,WANGQuan-jin(SchoolofCivilEngineeringandArchitectural,EastChinaJiaotongUniversity,Nanchang330013,China)Abstract:Takingtheruraldomesticwastewaterastheobjectofstudy,undertheselectedfactorsandlevels,thetotalnitro-genremovalbyintegratedverticalflowconstructedwetland(IVCW)wasinvestigatedthroughorthogonaltest.Byorthogonaltestof4factorsand3levels,inthecaseofcontrollingC/N,hydraulicloading,pHvalue,andthedistanceoftheflowwater,thetotalnitrogenremovalbythewetsystemwasdeterminedinordertosearchtheoptimalcombinationoffactors.TheresultsshowedthatintermittentoperationofIVCWhadagoodtotalnitrogenremoval,fourcontrolfactorshadsignificantinfluencesonthetotalnitrogenremovalfromruraldomesticwastewater,whentheinfluentC/Nwas8,hydraulicloadingwas40mm/d,pHvaluewas7,thedistanceofflowwaterwas1000mm,theeffectofwetlandsystemontheremovaloftotalnitrogeninsewagewasbest.Keywords:integratedverticalflowconstructedwetland;orthogonaltest;totalnitrogenremoval501420117HubeiAgriculturalSciencesVol.50No.14Jul.,2011DOI:10.14088/j.cnki.issn0439-8114.2011.14.0152011、、、、,;[7]。、、pH4,,,。11.12.0m×1.8m×1.0m,1.0m×1.8m×1.0m(12),1.0m×0.9m,0.2m,600mm,550mm,,。,60~100mm250mm,,5cm,,50mm,。DN20mm,,20。,,①~⑥⑦。1,2,8/m2。1。1.2[8,9],,。,,,,,。、、[10]。1.2.1、、pH。[11]。C/N/,TN/[12],。[13],[14],pH。,,,。,,。[15],,TN。[16],TN。TN,、、pH。1.2.2:3、815;40、200600mm/d;pH5、79;550、8601000mm。,C/N。[17],COD/TN4,A/O。[18],COD/TN6.8,SBR。,、,,,3、815。[19],0.156m3/(m2·d)。,,[3],,,,40、200600mm/d。,pH,1+1.00±0.00±0.000.5%460760950⑦①②③④⑤⑥950740540600286014Shammas[20]pH8~9,Antoniou[21]pH7.0~8.2,,[13],,pH5、79。,6,,,4,,1③、⑤、⑦,550、8601000mm。1.2.31。1.2.4,。2。,3,3,。COD,TN,NH3-N,TP,pHH2SO4(pH2.0)NaOH(pH12.5),COD、TN、NH3-N、TP5%,pH±0.5。TN-;NH3-N[22]。2TN3。3,TN>>>pH,1A2B1C3D3,8,40mm/d,pH9,1000mm;2A2B1C2D3,8,40mm/d,pH7,1000mm,TN。2.1TN32,TN,R11.57、13.36,8,TN,76.75%72.67%,1574.45%64.81%,3TN65.18%59.31%。,,,,;,,“”,,NO3--N,,,[23],,,。1123456789(A)1(3)2(8)3(15)1(3)2(8)3(15)1(3)2(8)3(15)(B)mm/d1(40)1(40)1(40)2(200)2(200)2(200)3(600)3(600)3(600)pH(C)3(9)1(5)2(7)2(7)3(9)1(5)1(5)2(7)3(9)(D)mm2(860)1(550)3(1000)1(550)3(1000)2(860)3(1000)2(860)1(550)3TN123456789x11x12x13R1x21x22x23R2A12312312365.1876.7574.4511.5759.3172.6764.8113.36B11122233380.6170.8064.9715.6476.3564.1656.2920.06C31223112367.7173.8074.877.1661.9368.5166.356.58D21313232167.3973.5275.478.0858.1868.7869.8411.66177.8076.0987.9560.7981.5070.1056.9572.6765.30274.0072.3482.7153.3676.2362.8850.5869.4548.83TN//%2(:mg/L)TN40CODC/N=3C/N=8C/N=15120320600NH3-N25TP4:TN286120119080706050403020100TN//%3815,,TN,。TN,TN。2.2TN3,R4,15.64、20.06,TN。3,,TN,40、200600mm/d,TN80.61%(76.35%)、70.80%(64.16%)、64.97%(56.29%)。TN,[24]。,,TN。40mm/d600mm/dHRT5d8h,,,。3TN55%。2.3pHTN4,1pH9TN,74.87%,pH773.80%,pH567.71%;2pH7TN,68.51%,pH966.35%,pH561.93%。TN,TN。pH,pH,pH7.0~7.8pH7.7~8.1[3],,;,,,pH,pH7.2~8.0,pH7.5~9.2[3]。2.4TN5,TN,550mm860mm,TN67.39%(58.18%)73.52%(68.78%),,TN,1000mm,TN75.47%(69.84%),,TN。TN,,TN。,,、2TN123TN100806040200TN//%40200600//mm/d124pHTN80706050403020100TN//%579pH125TN806040200TN//%5508601000//mm12286214(),。31)TN。2),TN1A2B1C3D3,8,40mm/d,pH9,1000mm;2A2B1C2D3,8,40mm/d,pH7,1000mm,TN。3)TNC/N,;,TN;TN;,TN,TN,,,。:[1],.[J].,2007,35(22):6902-6933.[2].[J].,2007,35(4):1104-1105[3].[M].:,2008.[4]REEDSC,BROWND.Subsurfaceflowwetlandsaperfor-manceevaluation[J].WaterEnvironmentResearch,1995,67(2):244-248.[5],,,.[J].,2006,15(6):1385-1390.[6]BAYLEYML,DAVISONL,HEADLEYTR.Nitrogenre-movalfromdomesticeffluentusingsubsurfaceflowconstructedwetlands:influenceofdepth,hydraulicresidencetimeandpre-nitrification[J].WaterSciTechnol,2003,48(5):175-182.[7],,,.[J].,2007,23(9):10-14.[8],.[M].:,2005.41-52.[9].[J].(),2009,28(3):352-356[10],.SPSS[J].,2006,19(1):91-92.[11],,,.[J].,2009,27(5):36-40.[12],,,.[J].,2006,32(1):18-22.[13].pH[J].,1996,22(1):10-13.[14],,,.pH[J].(),2005,31(6):755-759.[15],,,.[J].,2004,24(3):275-279.[16],,,.[J].,2009,31(11):26-34.[17],,.BPA/O[J].,2005,56(2):297-300.[18],,,.C/N[J].,2003,16(5):37-40.[19].[J].,2008,24(6):67-71.[20]SHAMMASNK.Interactionoftemperature,pHandbiomassonthenitrificationprocess[J].ResearchJournaloftheWa-terPollutionControlFederation,1986,58(1):52-59.[21]ANTONIOUP,HAMILTONJ,KOOPMANB,etal.EffectoftemperatureandpHontheeffectivemaximumspecificgrowthrateofnitrifyingbacteria[J].WaterResearch,1990,24(1):97-101.[22]《》.[M]..:,2002.[23],,,.C/N[J].,2008,24(2):27-29.[24],,,.[J].,2004,18(4):163-168.:TN2863

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