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当前位置:首页 > 机械/制造/汽车 > 机械/模具设计 > 除铁除锰生物滤层最优化厚度的研究李冬
李 冬1, 张 杰2, 张艳萍3, 王洪涛4(1.北京工业大学建筑工程学院,北京100022;2.哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090;3.北京工商大学化学与环境工程学院,北京100037;4.清华大学环境科学与工程系,北京100084) : 除铁除锰生物滤层的厚度对滤池除铁除锰效果有至关重要的影响,而地下水水质是确定除铁除锰生物滤层厚度的重要因素。实验室滤柱试验的结果表明:不同铁、锰含量的地下水,其适宜的生物滤层厚度不同。生产运行试验也证明了上述结论并进一步得出:对于铁、锰含量较低的地下水,滤层的适宜厚度为900~1000mm,而对于铁、锰含量较高的地下水,生物滤层相应地要增厚至1000~1300mm。 : 铁; 锰; 生物滤层; 厚度; 最优化:TU911.2 :C :1000-4602(2007)13-0094-04StudyonOptimizationofBiologicalFilterBedThicknessforRemovalofIronandManganeseLIDong1, ZHANGJie2, ZHANGYan-ping3, WANGHong-tao4(1.CollegeofArchitectureandCivilEngineering,BeijingUniversityofTechnology,Beijing100022,China;2.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China;3.CollegeofChemicalandEnvironmentalEngineering,BeijingTechnologyandBusinessUniversity,Beijing100037,China;4.DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China) Abstract: Thethicknessofthebiologicalfilterbedisimportantforremovalefficienciesofironandmanganese,andthegroundwaterqualityisoneofimportantfactorstodecidethethicknessofthefilterbed.Thelab-scaleexperimentsshowthatthefeasiblethicknessisdifferentforthegroundwaterwithdif-ferentconcentrationofFe2+andMn2+.Thefull-scaleexperimentsprovethisandshowthatthethicknessofthefilterbedrangesfrom900to1000mmforthegroundwaterwithlowconcentrationofFe2+andMn2+.Itshouldbeincreasedtoarangeof1000to1300mmforthegroundwaterwithhighconcentrationofFe2+andMn2+. Keywords: iron; manganese; biologicalfilterbed; thickness; optimization ,、,,。。,,。。·94·第23卷 第13期2007年7月 中国给水排水CHINAWATERWASTEWATER Vol.23No.13Jul.20071 材料与方法1.1 。250mm,3000mm,0.8~1.2mm,1100mm。1~2mm,300mm。。1。1 Fig.1 Schematicdiagramofexperimentalset-up1.2 。,4~5mg/L,5m/h、11L/(s·m2)、3min、48h。,10~14mg/L,0.8~1.1mg/L,。Fe2+、Mn2+、DO、Fe3+,[1]。1.3 :5mL,、,。,。3。25℃14d,,(MPN)。2 结果与讨论2.1 2。2 Fig.2 Distributionofbacteriaalongfiltercolumn2,、。,、2×106/mL,,,740mm,100/mL。,,3。3 Fig.3 Distributionofbacteriaalongfilterbed3,1.4×105/mL,,,300mm,2×104/mL。2.2 、4。4,40cm90%,80cm80%,100cm95%,120cm、100%,·95·李 冬,等:除铁除锰生物滤层最优化厚度的研究第23卷 第13期。4 、Fig.4 IronandmanganeseremovalratealongmaturefiltercolumnFe2+0~40cm,20cm70%,40cm,Fe2+。Mn2+20~80cm。2.3 、、,,,,。,。Fe2+,,,Fe3O4·mH2O,、Fe2+、Mn2+,,Fe2+(20~40cm),、Fe2+Mn2+,,。Fe2+,(),,,,。,、,,。,,,,。、,。、,900~1000mm,、,,。10~14mg/L,0.8~1.1mg/L。1000mm,200311,200434,,40%,,2004361300mm。520043、。5 Fig.5 MatureoffilterinLanxiWaterworks5,,,,。,,3141,,30%50%。。,,,,、,,,,。,,(1)。4,,。1,。,,0.8~1.1mg/L,,7.0~8.0mg/L10.0~14.0mg/L,1000mm1300mm。·96·第23卷 第13期 中国给水排水 ~3.0mg/L,900mm、。,,,,,。1 Tab.1 Thicknessoffilterbedinwaterplantsforbiologicalremovalofironandmanganese/(104m3·d-1)/mm//(mg·L-1)/(mg·L-1)FeMn2+FeMn2+0.31993290017.00.80.10.05122000590040.03~0.32.0~3.00.10.051.0200210100027.0~8.00.8~1.00.10.051.52003101300810.0~14.00.8~1.10.10.1202005101300614.02.50.10.159000.51.029000.31.53 结论:,,。① 、,1000mm。② ,,1000~1300mm。③ ,,900~1000mm。:[1] .[M].:,2002.:13121218006E-mail:lidong2006@bjut.edu.cn:2007-03-01(上接第93页)55%65%,40%50%;96h,72h,1/4。② ,,。:[1] LiuYi.Strategyforminimizationofexcesssludgeproduc-tionfromtheactivatedsludgeprocess[J].BiotechnolAdv,2001,19(2):97-107.[2] ,,.[J].,2004,30(7):23-26.[3] ,.[J].,2002,29(2):86-88.[4] ,.[J].,2003,(3):81-83.[5] .(3)[M].:,1989.[6] FawziABanat,StephanPrechtl,FranzBischof.Aerobicthermophilictreatmentofsewagesludgecontaminatedwith4-nonylphenol[J].Chemosphere,2000,41(3):297-302.[7] RaviSankarArunachalam,HemantKShah,JuLu-Kwang.Monitoringaerobicsludgedigestionbyonlinescanningfluorometry[J].WaterRes,2005,39(5):1205-1214.[8] YangShu-fang,TayJoo-Hwa,LiuYu.Inhibitionoffreeammoniatotheformationofaerobicgranules[J].Bio-chemEngJ,2004,17(1):41-48.:(0731)8823967E-mail:xmli@hnu.cn::2007-01-20·97·李 冬,等:除铁除锰生物滤层最优化厚度的研究第23卷 第13期
本文标题:除铁除锰生物滤层最优化厚度的研究李冬
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