河岸渗滤作用脱氮机理及其特点的试验吴耀国

吴耀国1,王　超2,王惠民2(1.西北工业大学应用化学系,西安　710072;　2.河海大学环境科学与工程学院,南京　210098)　　:。、,。,。,,,,,。:;;;;:X52　　　:A　　　:1002-1263(2003)06-0298-03ExperimentalResearchonNitrogen-RemovalandItsMechanismDuringRiverbankFiltrationWUYao-guo1,WANGChao2,WANGHui-min2(1.NorthwesternPloytechnicalUniversity,Xi'an710072,China;2.HehaiUniversity,Nanjing210098,China)Abstract:Riverbankfiltrationwaterisanimportantcomponentofthedrinkingproductioninmanycountries.Itisimportanttodrinkingwatersafetytostudytheefficacyofriverbankfiltrationfortheremovalofnitrogen.Themecha-nismandcharacteristicsoftheremoval-nitrogenbytheriverbankfiltrationisstudiedbyinnerandfieldexperi-ments.Theresultsshowthat,themainmechanismoftheremoval-nitrogenoftheriverbankfiltrationarenitrifica-tionanddenitrification,andnitrificationiscarriedonthefirstpassageanddenitrificationcarriedlatterinflowpath,andtheirinterfaceexistedinsediments.Itisthewaystoimprovetheefficacyofriverbankfiltration'nitrogen-re-movalbyenhancingandmatchingnitrificationanddenitrification,andenlargingthescaleofthesystem.Keywords:riverbankfiltration;　groundwater;　nitrification;　denitrification;　nitrogen-removal　　,,。,,[1],[2,3],[4,5]。。,,、、[6]。,,。1　。,、,8.0×104m3。,,,。10～30m,,。,0.5～4m,,26～30mg/L。,。,,,,,,。,。2　。3,I1,40m;I2,62.6m;I3,138.6m。,10m。19951999,。,,(NH4)2SO410.719.0mg/LNH4+-N,,[3]。298166200312URBANENVIRONMENT&URBANECOLOGYVol16,No.6Dec.　2003:、“”(2002)　:2003-08-113　11995、1999。1　mg/L(--)NH+4-N(I1,I2,I3)NO-3-N(I1,I2,I3)TN(I1,I2,I3)Cl-(I1,I2,I3)95-02-150.29,0.28,0.270.06,0.07,0.090.35,0.35,0.36141.8,104.2,73.495-04-260.15,0.14,0.150.08,0.04,0.040.23,0.18,0.19130.2,95.9,73.495-06-220.39,0.31,0.340.04,0.04,0.040.43,0.35,0.38145.7,64.6,99.895-08-110.13,0.14,0.120.11,0.11,0.070.24,0.25,0.19145.1,96.2,73.899-01-292.83,2.18,1.3214.38,12.23,4.8517.21,14.41,6.17115,98,5799-04-053.22,2.23,1.4415.32,13.65,4.6918.54,15.88,6.13122,104,5499-06-102.31,1.56,1.1512.87,9.69,4.3615.18,11.25,5.51109,93,5199-08-152.19,1.29,1.1210.95,8.95,4.0213.14,10.24,5.1499,80,50　　:NO2--N。1995、1999(2)。2　1995/1999　%(--)NH+4-N(I1,I2,I3)NO-3-N(I1,I2,I3)TN(I1,I2,I3)Cl-(I1,I2,I3)95-02-1598.30,98.30,98.4289.47,87.72,84.2197.78,96.98,95.5628.88,51.13,70.3895-04-2699.12,99.18,99.2985.96,92.98,92.9898.38,98.30,97.6534.88,56.31,70.3895-06-2297.72,98.19,98.0192.98,92.98,92.9897.33,95.09,96.5525.19,75.88,53.8895-08-1199.24,99.18,99.2980.07,80.07,87.7298.50,97.65,97.7625.21,56.13,70.2499-01-2982.66,86.95,92.6256.67,64.19,90.0265.68,72.09,90.9250.57,60.23,83.5299-04-0581.43,87.52,92.3759.54,76.28,91.8166.73,72.14,92.0046.21,64.26,76.1199-06-1085.28,90.51,93.3743.74,60.20,87.7861.43,73.11,90.1626.44,80.00,55.1399-08-1583.18,90.79,92.2226.52,42.94,83.4245.27,66.51,87.767.06,45.87,63.65　　2,,NH4+-N、NO3--N,,。NH4+-N、NO3--N,NH4+-N、NO3--N。3.1　,,(1),(R′x):R′x=Cs-Cb-C0Cs×100%(2):Cs(),x(m),mg/L。Cl-,,(η):η=Cw-C0Cs-C0×100%(3),1、2,(2),(R′x)(3)。3　%(m)40.0(NH4+-N,NO3-N,TN)62.6(NH4+-N,NO3-N,TN)138.6(NH4+-N,NO3-N,TN)1995-02-1598.03,87.81,97.9196.88,76.64,96.2395.41,54.09,94.071995-04-2698.86,81.79,98.2798.41,86.36,98.0297.45,79.60,94.071995-06-2297.44,/92.15,97.2893.46,74.71,92.8596.34,87.26,96.041995-08-1199.14,78.23,98.4798.41,62.65,97.2697.99,64.89,96.921999-01-2970.52,26.27,40.8872.42,40.12,24.2962.29,49.11,51.571999-04-0567.97,30.12,42.0173.69,24.40,39.8452.49,49.15,50.131999-06-1076.37,9.72,37.2480.74,19.14,44.3062.00,29.97,43.531999-08-1581.81,20.52,36.0782.64,10.01,35.4865.41,26.28,45.45　　,。3NH+4-N、NO-3-NTN,。,。,。3.2.1　1～510.719.0mg/LNH+4-N,,。1　10.7mg/LNH+4-N,2　19.0mg/LNH+4-N,　3　10.7mg/LNH+4-N,　4　19.0mmmg/LNH+4-N,　5　19.0mg/LNH+4-N,(15cm)　　1、2,,,299,　　　。NH4+-N,NO3--N、NO2--N,12,(1)NO3--N、NO2--N,NH4+-N;(2),。(15cm),,NO-3-N,,,。(3、4、5),。,30cm、60cm,NO-3-N,,,。,3、4,、20cm。Doussan[8]:、,。。,30cm60cm,NO-3-N,,,,NO-3-N。,2mg/L,7mg/L,NO-3-N,NH+4-N,,:(1),。(2),,,,NH+4-N。13。3.2　,25,,,,,,。,。3,NH+4-N,NO-3-N,,。4　4.1　()(、)。,,。4.2　,,,,,,,。4.3　,、,、,,。4.4　,,。,,,,,;,,。,,,。,,,,。[1]　ChittaranjanRay,ThomasGrischek,JurgenSchubert,JackZWang,ThomasFSpeth.,Aperspectiveofriverbankfiltration[J].AmericanWaterWorksAssociation.Journal,2002,94(4):149-160.[2]　Tufenkji,N.,J.N..RyanandM.Elimelech.Thepromiseofriverbankfiltration[J].Environ.Sci.Technol.2002,28,422A-4428A.[3]　W.KuehnandU.Mueller.Riverbankfiltration:anoverview[J].AmericanWaterWorksAssociation.Journal,2000,92(12):60-69.[4]　Hiscock,K.M.,T.Grischek.Attenutationofgroundwaterpollu-tionbybankfiltration[J].J.Hydrol.,2002,266:139-144.[5]　,　.[J].,1998,9(3):289-295.[6]　F.Jǜtter.EliminationofterpenoidodorouscompoundsbyslowsandandriverbankfiltrationoftheRuhrriver,Germany[J].Wat.Sci.Tech.,1995,31(11):211-217.:(1967-),,,,,,30。300　　　166　2003