2级潜流湿地塘组合系统校园污水除氮实验宋嘉骏

、、[1]。[2]。[3]。。。。。11.12。。22、、、。2.5m×l.0m×0.55m2%。100mm、50～100mm300mm、10～30mm150mm。。5.0m×2.0m×1.3m2%。100mm、50～100mm200mm。。COD87.36～21.50mg/LTN、NH4+-N26.81～13.49、23.74～11.21mg/L。1.220136127312330013。COD、TNNH4+-N200mm/d、500mm/d、1000mm/dCOD、TN、NH4+-NNO3--NNO2--N。。--。X703.1A1000-3770(2014)0[e-mail][e-mail]40720147TECHNOLOGYOFWATERTREATMENTVol.40No.7Jul.,201485DOI:10.16796/j.cnki.1000-3770.2014.07.0242。200mm/d、500mm/d、1000mm/d3。2d15315。、[4]CODDOYSI55TNNH4+-NNO3--NNO2--NN-(1-)-。22.11COD、TNNH4+-N。1COD、TNNH4+-N。COD、TNNH4+-NGB18918－2002A[5]。。。2[6-7]。[8]。[9]。[10]。2.2。612200mm/d1～5、500mm/d6～101000mm/d11～15CODTN、NH4+-N1～2。1CODCOD32.36～87.36mg/L1～5、24.86～47.04mg/L6～1021.50～55.10mg/L11～15。COD10.08～26.88、6.72～13.44、6.72～12.10mg/L。2COD2-。22TN21.45～24.60、1Tab.1Pollutantsremovalrateofcombinedsystem/(mm·d-1)COD/(mg·L-1)ρ(TN)/(mg·L-1)ρ(NH4+N)/(mg·L-1)/%CODTNNH4+N200500100032.36～87.3624.86～47.0421.50～55.1010.08～26.886.72～13.446.72～12.1021.45～24.6016.99～26.8113.49～20.939.15～14.2310.13～12.367.55～13.5413.15～23.7411.21～21.1411.69～13.613.46～12.186.13～8.185.89～6.7363.99～80.8349.89～80.0043.72～78.0442.15～59.1539.49～53.9035.30～55.1848.69～80.6433.18～61.7548.67～52.351CODFig.1CODintheinfluentandeffluentofthecombinedsystem0246810121416020406080100
COD/(mgL)2TNNH4+-NFig.2ContentofTNandNH4+-Nintheinfluentandeffluentofthecombinedsystem0246810121416051015202530

/(mgL)40786CODTNNH4+-N23.546.9063.245.813.8054.259.2714.5975.222.193.252.9211.5832.992.542.0823.210.592Tab.2Standarddeviationofwaterindexwithcombinationsystem16.99～26.81、13.49～20.93mg/L9.15～14.23、10.13～12.36、7.55～13.54mg/L。TN。TN。、NH4+-N。22[11]。。。2.3、、、、。[12]。CODNH4+-NCODNO3--N[13]。TN、NH4+-N、NO3--NNO2--N3。3CODDO、NO3--N、DONO3--N。3NO2--NNO2--NDONO2--NDONO2--N。、NO3--N、NO2--N。3。、TN、NH4+-N。。CODTN、NH4+-N、NO3--NNO2--NGB18918－2002A。。[1]ZhangDQ,GersbergRM,KeatTS.ConstructedwetlandsinChina[J].EcologicalEngineering,2009,35(10):1367-1378.[2]ZhaoY,SunG,AllenS.Purificationcapacityofahighlyloadedlaboratoryscaletidalflowreedbedsystemwitheffluentrecirculation[J].ScienceoftheTotalEnvironment,2004,330(1):1-8./(mm·d-1)ρ/(mg·L-1)ρ/(mg·L-1)ρ/(mg·L-1)2005001000TNNH4+-N22.7421.6417.4618.8916.2712.840.6230.5800.4080.0940.0530.05016.7016.1014.2215.7613.7011.230.4980.7210.3870.1560.0320.030TNNH4+-NNO3--NNO2--NTNNH4+-N11.0310.989.307.327.226.360.1920.9590.4460.0240.1020.032NO3--NNO2--NNO3--NNO2--N3TN、NH4+-N、NO3--NNO2--NTab.3TN,NH4+-N,NO3--NandNO2--Nintheinfluentandeffluentofeachstructure2－8770!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!RESEARCHONADSORPTIONPROPERTIESOFMETHYLENEBLUEFROMDYEWASTEWATERBYTHEACTIVATEDCARBONPREPAREDFROMSHADDOCKSKINSBYACTIVATIONWITHZINCCHLORIDEZhangDi,ZhangHua,LuYanqin,HeZhaoju,LuoLiudan(GuilinUniversityofTechnology,SchoolofEnvironmentalScienceandEngineering;GuangxiScientificExperimentCenterofMining,MetallurgyandEnvironment:Guilin541004,China)Abstract:TheactivatedcarbonabsorbentwaspreparedfromshaddockskinspowderbyactivationwithZincChloride,theadsorptionpropertiesofMethylenebluefromdyewastewaterbytheactivatedcarbonwasstudied.AbetteradsorptionefficiencyofMethylenewasachievedwhenthetemperaturefrom25~45℃andthepHfrom2~11.Theadsorptionsaturationtimeofactivatedcarbonwas90min.Underthesameinitialcontentwiththeincreaseofdosage,unitqualityactivatedcarbonadsorptionofMethylenebluedecreased.Withthehigherinitialcontent,thestrongeradsorptioncapacityofunitqualityactivatedcarbon.ShaddockskinsactivatedcarbonadsorbingMethylenebluewasarapidadsorptionprocess,theadsorbingdatescomplywithpseudosecondorderkineticequation.TherewasminuteinfluenceoftheactivatedcarbonadsorbingMethylenebluebytemperature.TheadsorbingdatesalsocomplywithLangmuirandFreundlichisothermadsorptionmodels,themaximumadsorptionquantitywas232.6mg/gintheLangmuirisothermalequation.Keywords:shaddockskins;activatedcarbon;Methyleneblue;adsorptionpropertyEXPERIMENTRESEARCHONNITROGENREMOVALBYTWO-STAGESUBSURFACEFLOWCONSTRUCTEDWETLAND-ECOLOGICALPONDCOMBINEDSYSTEMSongJiajun,WangQuanjin,ZhuPing,QiXiaobo,ZhuPei(SchoolofCivilandArchitecturalEngineering,EastChinaJiaotongUniversity,Nanchang330013,China)Abstract:Theartificialwetlandconstructedwetlandpondsystemdevicewasusedforcontinuoustreatmentofcampussewageunderdifferenthydraulicloading.TheresultsshowthattheremovalrateofCOD,TNandNH4+-Ndecreasedwiththeincreasingofhydraulicload(200mm/dwithlowhydraulicloading,500mm/dwithmid-hydraulicloading,1000mm/dwithhighhydraulicloading)anditallmaintainedatahighlevel.ThechangerateofCODwitheffluentwaslessthanthatwithinletinallhydraulicloading,thechangeratewitheffluentwaslessthanthatwithinletofTNinlowandmid-hydraulicloadingandNH4+-Ninmidandhighhydraulicloading;andNO3--NandNO2--Nconcentrationineachthestructureschangesalot,withshowedadifferenttrendofchange.Thisshowsthatinthedifferenthydraulicloading,thepollutantremovaleffectisgood,thecombinationsystemhaspowerfulshockloadcapabilityinmid-hydraulicloading.Nit