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2 11环境工程学报Vol.2,No.11200811ChineseJournalofEnvironmentalEngineeringNov.2008路 远 孙力平 衣雪松 吴 立 袁忠伟(,300384) -,、、。,,,,,46.7%,8.84%。,。 X703 A 1673-9108(2008)11-1457-04ExperimentalstudyonwastewatertreatmentperformanceofmodifiedpolypropylenemediaLuYuan SunLiping YiXuesong WuLi YuanZhongwei(DepartmentofEnvironmentalandMunicipalEngineering,TianjinUrbanConstructionInstitute,Tianjin300384)Abstract Thetechnologyofchemicaloxidation-surfacecoveredwithironionwasusedtomodifythenatureofcommonpolypropylenemedia,thecharactersofmediawerecomparedwithmodifiedmediaaboutbiologyhy-drophilicity,surfacecharacteristic,criticalsurfacetensionandmembranceforminginsimulativewastewatersys-tem.Theresultshowsthatthecharacteristicsofhydrophilicityandthedegreeofsurfacegeanulationhavebeenenhancedgreatly,thecriticalsurfacetensionofthesuspendedmediahasbeenincreased,surfaceelectricityispositive,thespeedofmembranceformingisincreasedby46.7%,thefinalremovalrateofNH+4-Nisincreasedby8.84%.Modifiedmediahasabetterwastewatertreatmentperformance.Keywords modifiedmedia;membranceforming;biofilmprocess:(04227):2008-03-14;:2008-03-30:(1983~),,,。E-mail:luyuan20021983@163.com ,,。[1]。,。:、(、、)、。、、,、、。,、。,。,,、,,。1 1.1 LF。:38mm,300m2/m3,0.86m2/m3,0.96,1。1.2 -[2]。:,,,,。Liu[3]X21 Fig.1 Experimentalsuspendedmedia(XPS),PE、PS、PPPVC。,,。Liu[4],Fe/C0.05,。:(0.1~0.5mol/L)1h,,;0.1mol/L0.5h,,。,,。1.3 ,,、,,。1.3.1 填料含水率的测试、。。:2,24h,3、6、9、1215h。。,5。,。1.3.2 填料的表观特征。,。,。1.3.3 填料的临界表面张力测定JT-82Zisman[5],。1.3.4 填料生化特性的测试。2。190mm,240mm,5L,2。2 Fig.2 Experimentalequipment,:COD600mg/L,NH+4-N40mg/L,PO3-4-P8mg/L,Na2CO3100mg/L,MgSO44.48mg/L,CaCl22.56mg/L。[6]。,240%,。,,24h,。,,。,,,。2~3mg/L,20~24℃。12h:11h,50min,10min。COD。。2 2.1 24h145811 :,3。0(5.74%)0(3.89%),,。,,,,,,,。3 24hFig.3 Comparisonofpackingmoistureafter24himmersion2.2 ,,,。,(45)。,,,。,,,,、。,。4 Fig.4 Surfaceofusualpacking5 Fig.5 Surfaceofmodifiedpacking。2.3 ,1,cosθ~σL,cosθ=1,(6)。1 Table1 Surfacetensionofseveralkindsofliquidandcontactangleonsuspendedmedia(×10-3N/m)θ(°)177.59548272.88841363.47828447.756-532.026-6 ZismanFig.6 CriticalsurfacetensionofsuspendedmediabyZismanmethod,,27.2×10-3N/m1459256.3×10-3N/m,。2.4 ,3d,,,,COD37.4%,7d。,,,。COD7。COD5d81.54%,,COD80%,8d,,13dCOD80%,15d,。7 CODFig.7 CODremovalduringmembraneforming,,8d,15d,46.7%;,,。2.5 ,。8。,4d,4d53.26%,8d,,11d71.26%,70%,。13d,14d。,,70%,65%,。,,。8 Fig.8 NH+4-Nremovalduringmembraneforming ,8.84%。3 -:;,,;27.2×10-3N/m56.3×10-3N/m;,,46.7%,,;8.84%。,。[1],,,.MUCT.,2006,37(6):8~11[2],,,..,2006,35(4):41~45[3]LiuY.Adhesionkineticsofnitrifyingbacheriaonvariousthermoplasticsupports.ColloidsandSurfacesB:Biointer-faces,1995,5:213~219[4]LiuY.Agrowthyieldmodelforsubstrate-sufficientcontin-uouscultureofmicroorganisms.EnvironmentalTechnol.,1996,17:649~653[5]D.Stats,..:,1994.3~12[6]..:,1997.185~1911460
本文标题:改性聚丙烯填料水处理性能试验研究路远
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