不同人工湿地填料除磷性能试验李金城

304201011JournalofGuilinUniversityofTechnologyVol.30No.4Nov.　2010:1674-9057(2010)04-0603-05李金城,王君雅,徐芝芬,阙光龙,陈小玲,李文文,李欢强(a.;b.,　541004)　:、、、(WSC)、、,。:6FreundlichLangmuir,WSC,:。:WSC=。:WSC,98%,、、、,。:;;:X703　　　　　　　　　　　　　　:A,、、、,,,,、。、。,[1]。。[2]、、,、、。[3]、、、、、7,:。Drizo[4]、、、、、、7,:。,,。、、、(WSC)、、,。Langmuir。,,。,,。1　1.1　6:、、、(WSC)、、。,、,;,;,;,;　:2009-10-12　:(201010LX172);(0640070);“”([2007]71);(20100126-2)　:(1972—),,,,:,[e-mail]。　:,,,.[J].,2010,30(4):603-607.,;WSC、。:(1),X(2)。1　　　　Table1　Particlesizedistributionofsubstrates　　　%/mm　　　WSC1.024.3330.6853.6421.639.7123.361.0～2.516.7819.0620.2115.9015.2120.242.5～5.011.479.5813.8911.2810.664.605.0～10.042.7636.7011.3239.2256.4530.1810.04.724.000.9311.967.9621.622　　　　Table2　Mainchemicalcompositionofsubstrates　　wB/%　　　WSCSiO252.9449.3663.9822.3114.810Al2O328.8127.1529.355.981.710Fe2O36.895.992.003.764.130.06CaO5.544.671.2665.5043.4039.78MgO1.991.390.951.8800.46K2O2.001.28000.830.28SO32.720.980.990001.2　105℃2h2.0g,100mL,50.0mg/LKH2PO450mL,3。200r/min,4000r/min,。24℃,3,3,。1.3　105℃2h2.0g,100mL,2.5、5.0、10.0、20.0、50.0、100.0、150.0、300.0mg/LKH2PO450mL,1∶25,3。24h(200r/min)。,4000r/min5min。24℃,3,,。1.4　619mm,50cm6,2cm,,(KH2PO4,)。,,24h,1,。1.5　《》(4)。0.01～0.6mg/L。2　2.1　:,6。1a,,、、、,,:,48h,。WSC(1b),5,5。624h,24h。1　Fig.1　Relationshipbetweenphosphorusadsorptionamountandtimebydifferentsubstrates604　　　　　　　　　　　　　　　　　　　　　20102.2　2.2.1　等温吸附曲线　2,6,,,。、、,Ca-P、Fe-P、Al-P,,,,,。2.2.2　等温吸附方程　,,,QC,。Freundlich、Langmuir。　　Freundlich:Q=KC1/n。:Q,mg·kg-1;Kn;C,mg·L-1。,:lnQ=1nlnC+lnK。　　Langmuir:C/Q=1/(ab)+(1/b)C。:a;b,mg·L-1。3Freundlich。,n,,n0.8806～2.2487。K,K,,6K:WSC,WSC,、、,。WSC,4Fre-undlich,。4Langmuir。a,,a,。,WSC2　Fig.2　Phosphorusadsorptionisothermsofthesubstrates3　FreundlichTable3　Freundlichisothermsforphosphorusadsorptiononsubstrates　　WSC　lnQ=1nlnC+lnK　y=0.4461x+5.5496　y=0.6295x+4.3122　y=0.4447x+4.7526　y=0.5208x+7.0444　y=1.0541x+1.6348　y=1.1356x+2.4407R20.89920.87530.76220.76790.94870.9656n2.24171.58862.24871.92010.94870.8806K257.134774.6044115.88521146.42105.128411.4816054　　　　　　　　　　　　:,、、,。b,:WSC=。5Langmuir。FreundlichLangmuir6,,Lang-muir。,FreundlichLangmuir。3　53,WSC,、、、,,。,,,。6,WSC90%,,60%,,。WSCCa,CaCa2+、Ca(OH)2,pH9.5,Ca2+,。,,,。FeAl[5],4　LangmuirTable4　Langmuirisothermsforphosphorusadsorptiononsubstrates　　WSC　CQ=1ab+1bCy=0.0016x+0.0007y=0.0186x+0.0008y=0.0093x+0.0012y=0.0006x+0.0001y=0.1746x+0.0011y=0.0811x+0.0008R20.79540.91320.95040.94770.96630.9948a0.11480.04300.12900.16670.00630.0099b1428.571250.00833.3310000.00909.091250.005　6Table5　Dynamicadsorptiontestonphosphorusremovalρ/(mg·L-1)　ρ/(mg·L-1)/%　ρ/(mg·L-1)/%ρ/(mg·L-1)/%WSCρ/(mg·L-1)/%　ρ/(mg·L-1)/%ρ/(mg·L-1)/%15.130.0499.080.0798.790.0599.080.3293.373.2536.694.2916.4525.980.0499.210.0798.900.0699.080.3993.414.2728.651.4775.4736.180.0199.790.1098.430.1797.220.1098.434.9020.711.4077.3545.760.00100.000.5290.970.2495.920.0499.245.327.630.9483.7554.700.1197.622.0456.630.2195.470.0499.134.357.400.7184.8866.230.0399.502.8354.640.1996.940.0399.525.925.081.1182.2876.230.4293.203.2348.160.4293.250.00100.004.9520.531.2879.4785.901.8069.522.9550.000.4492.620.0299.615.782.130.5790.3697.201.4480.093.4152.670.6690.790.0199.906.1514.693.7847.52105.910.9783.614.4125.301.2279.370.0499.344.9815.602.6954.70117.422.3768.073.6351.183.1957.020.0599.396.2316.082.8361.90126.230.4293.203.2348.160.4293.250.00100.004.9520.531.2879.47137.860.1298.493.4855.672.2471.550.0499.505.628.743.0061.88146.120.8386.522.6257.270.7787.410.00100.005.982.300.2895.39155.910.5590.623.6546.711.8668.570.00100.005.870.563.4341.916.180.6190.572.4262.230.8187.840.0798.725.2315.161.9468.85606　　　　　　　　　　　　　　　　　　　　　20103　Fig.3　Comparisonofphosphorusremovalefficiencyfordifferentcolumns、、,,[6]。。、、,,,2～10μm,。,Ca,,。,。、、、。,,、、、。4　　:6,24h。,。(WSC),Langmuir6,WSC,、、、,。:6,5,WSC90%。(WSC)。:[1]AriasCA,DelBubbaM,BrixH.Phosphorusremovalbysandsforuseasmediainsubsurfaceflowconstructedreedbeds[J].Wat.Res.,2001,35(5):1159-1168.[2],.[J].,2005,24(2):353-356.[3],,,.[J].,2005,26(1):51-55.[4]DrizoA,FrostCA,GraceJ,etal.Physico-chemicalscreeningofphosphateremovingsubstratesforuseinconstructedwetlandsystems[J].Wat.Res.,1999,33(17):3595-3602.[5],,.(P)-[J].,2005,25(1):64-69.[6],,,.[J].,2004,24(5):614-617.PhosphorusRemovalPerformanceforDifferentSubstratesinConstructedWetlandLIJin-cheng,WANGJun-ya,XUZhi-fen,QUEGuang-long,CHENXiao-ling,LIWen-wen,LIHuan-qiang(a.CollegeofEnvironmentalScienceandEngineering;b.GuangxiKeyLaboratoryofEnvironmentalEngineering,ProtectedAssessment,GuilinUniversityofTechnology,Guilin541004,China)Abstract:Asthesubstrates,slag,ash,honeycombcinder,WSC,gravelandoystershellarestudied,esptheirphosphorusadsorptioncharacteristics.Thestaticadsorptionindicatesthatsixwetlandsubstratesofthephosphor-usadsorptionprocessescanbedescribedbyFreundlichandLangmuirequation.WSCadsorptioneffectisthebestamongthem.Otheradsorptioneffectorderis:slaghoneycombcinderashoystershellgravel.Theorderofthetheoreticalsaturatedadsorptionvalueis:WSCslagash=oystershellgravelhoney-combcinder.Dynamicadsorptionresul