钢渣灰岩人工湿地去除生活污水中的氮素黄玲

1Tab.1Thecompositionofconstructedwetlandfillings3#/mm30cm30cm10cm40%60%5252040%60%510202520/mm1#/mm2#。。[1-11]。、。。。11.113。125.5cm×77cm×70cm。60cm准20mm。1%～2%。5cm。15·m-2。、1。20085260h0.02m3·m-2·d-1。TN42.72～272.6mg·L-1107.4～689.4mg·L-1。1.2TN。TN[12]。22.1TN-1,221.1016012.100083。、TN257.7398.4mg·L-1TN13.5762.83mg·L-11。X799.3X703.1A1000-3770(2011)09-0109-0042[e-mail]37920119TECHNOLOGYOFWATERTREATMENTVol.37No.9Sep.,2011109DOI:10.16796/j.cnki.1000-3770.2011.09.02912。11a3。1#、2#、3#13.57、16.88、20.13mg·L-187.76%、84.57%、80.19%。90%257mg·L-1。21#、2#3#TN62.83、74.9473.72mg·L-1。TNTN398.4mg·L-1TN。、。2.22.2.112TN。、“、”1#、“”2#5～62TN。1#、2#、。21#、2#。10mm2#25mm1#。、1#。1#、。2#。2.2.21#、3#2。5～62。pHNH4+NH3。。3#。3#。21#、3#TN。TN。。1#TN3#。。31#、3#、。。1Fig.1NH3-Nconcentrationofeachlwetlandcelleffluent
05101520253035
123
(NH-N)/mgL56789101122TNFig.2TNconcentrationofeachwetlandcelleffluent
020406080100120140160

(TN)/mgL5678910112379110。1。1[13-14]dρ/dt=-kTρ1dρ/dtkTρ。ln(ρi/ρo)=-kTt2ρiρo、tHRT。1。214.8～281.2mg·L-1TN395.2～426.7mg·L-1。72h1#～3#TN2。ln(ρo/ρi)t3。360hHRT31。60hHRT。60hHRT3#TN60hHRT1。TN1#2#4。1#2#1。。、。4TN257.7mg·L-1398.4mg·L-189%78%。2030405060700-1-2-3-4-5t/hln(ρo/ρi)=-(0.9471t/h)-1.2736R2=0.6993ln(ρo/ρi)3b2#3c3#31Fig.3Simulatingequationoffirstorderreactionkineticofammonianitrogendegradatingln(ρo/ρi)=-(1.0843t/h)-1.3521R2=0.8622ln(ρo/ρi)2030405060700-1-2-3-4-5t/hln(ρo/ρi)=-(1.1243t/h)-1.1921R2=0.7974ln(ρo/ρi)3a1#2030405060700-1-2-3-4-5t/hln(ρo/ρi)=-(0.0914t/h)-2.0857R2=09884ln(ρo/ρi)203040506070-1.8-1.9-2.0-2.1-2.2-2.3-2.4t/d4a1#4b2#4TN1Fig.4Simulatingequationoffirstorderreactionkineticoftotalnitrogendegradatingln(ρo/ρi)=-(0.0743t/h)-1.8971R2=0.9956ln(ρo/ρi)203040506070-1.8-1.9-2.0-2.1-2.2-2.3-2.4t/d-111REMOVINGNITROGENINLIVINGSEWAGEWITHSTEELSLAG-LIMESTONECONSTRUCTEDWETLANDHuangLing1,2,HeXuwen2(1.NorthChinaInstituteofScienceandTechnology,Beijing101601,China;2.ChinaUniversityofMiningandTechnology,Beijing100083,China)Abstract:Thepurposeofthispaperwastostudythedegradationeffectofhighconcentrationnitrogeninlivingsewagewithsteelslag-limestoneconstructedwetland.Atthesametimetheroleoffillingsstructureandsurfacefillingimpactingtreatmenteffectwereanalyzed.Themathematicsmodelofsteelslag-limestoneconstructedwetlandremovingnitrogeninsewagewaserected.TheexperimentalresultsindicatedthattheNH3-NandTNconcentrationofconstructedwetlandeffluentattainedto13.57mg·L-1and62.83mg·L-1whentheaverageNH3-NandTNconcentrationofrawwaterwas257.7mg·L-1and398.4mg·L-1respentively.Thebedstructurehavinglargersizedifferencewhichwasmixedprogressively-sizedfillingwithanti-sizedfillingandthesurfacefillingmixed40%soiland60%washingsandweremorebenefitforkeepinglongtimebetterdegradationeffectonnitrogen.Thelawofsteelslag-limestoneconstructedwetlandremovingnitrogeninsewagecouldbedescribedwiththefirstorderreactionkineticequation.Keywords:constructedwetland;livingsewage;nitrogen;steelslag;limestone、。2。1TN1。[1]RozicM,cerjan-stefanovicS.Ammoniacalnitrogenremovalfromwaterbytreatmentwithclaysandzeolites[J].WaterResearch,2000,34(14):3675-3681[2]BookerNA,CooneyEL,PriestleyAJ.AmmoniaremovalfromsewageusingnaturalAustralianzeolite[J]WatSciTech,1996,34(9):17-24.[3]KomarowskiS,YuQ.AmmoniumionremovalfromwastewaterusingAustraliannatrralzeolite:batchequilibriumandkinetictedies[J].EnvironTechnol.,1997,18(11):1085-1097.[4]IthomeMK,PaulJW,LavkulichLM,etal.Kineticsofammoniumadsorptionanddesorptionbythenaturalzeoliteclinoptilolite[J].SoilScienceSocietyofAmericaJournal,1998,62(3):622-629.[5],,.[J].,2003,16(2):31-34.[6],,.[J].,2003,22(2):166-171.[7]GuyenML,TannerCC.AmmoniumremovalfromwastewaterusingnaturalNewZealandzeolites[J].NewZealandJournalofAgriculturalResearch,1998,4(3):427-446.[8],.Na-K(I):[J].,2004,20(6):541-547.[9],,.[J].,2004,27(1):62-65.[10],,NH4+[J].,2003,23(5):509-514.[11],,.[J].,2003,23(2):37-39.[12]《》.[M].4.:,2002.[13]KadlecRH.Theinadequacyoffirstordertreatmentwetlandmodels[J].EcolEng.,2000,15(1/2):105-119.[14],.[M].:,2006.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!、。。。。。。。379112