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双金属介质反应井对地下水四氯化碳污染治理.docx

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al.Simulationontreatmentofcarbontetrachlorideingroundwaterwithbimetaldielectricchemicalreactionwells[J].EnvironmentalScienceTechnology,2014,37(11):141-146.双金属介质反应井对地下水四氯化碳污染治理梁峙1,韩宝平1,马捷2,梁骁3,刘喜坤4,赵海明1,吴伟力1,仇琛1,肖扬1(1.徐州工程学院环境工程学院,江苏徐州221111;2.中国矿业大学,江苏徐州221008;3.上海财经大学经济学院,上海200433;4徐州市水利局,江苏徐州221111)摘要:利用实验室土柱淋溶试验,模拟研究化学反应井对地下水中四氯化碳的去除机理和方法。结果表明,四氯化碳在土壤垂直迁移中有滞后现象,200h后由于截流作用底部取样口浓度高于初始浓度;实验表明50目的铁粉对四氯化碳的转化效果高于其它2种;木炭的吸附效果高于焦炭和椰壳炭;研究发现在双金属共同作用中,铁锌组合优于铁铜组合、铁铅组合。同时采用响应曲面法对多因素进行了优化试验,结果表明:活性炭添加量25.7g、环境pH值6.1、Fe0/Zn00.858条件下,四氯化碳转化率达到最高值69.4%。研究结果对地下水中有机物的治理具有积极意义。关键词:双金属介质;模拟;四氯化碳;化学反应井;地下水环境中图分类号:X703文献标志码:Adoi:10.3969/j.issn.1003-6504.2014.11.027文章编号:1003-6504(2014)11-0141-06SimulationonTreatmentofCarbonTetrachlorideinGroundwaterwithBimetalDielectricChemicalReactionWellsLIANGZhi1,HANBaoping1,MAJie2,LIANGXiao3,LIUXikun4,ZHAOHaiming1,WUWeili1,QIUChen1,XIAOYang1(1.CollegeofEnvironmentEngineering,XuzhouInstituteofTechnology,Xuzhou221111,China;2.CollegeofAdultEducation,ChinaUniversityofMiningandTechnology,Xuzhou221008,China;3.SchoolofEconomics,ShanghaiUniversityofFinanceandEconomics,Shanghai200433,China;4.WaterAffairsBureauofXuzhou,Xuzhou221111,China)Abstract:Leachingexperimentinsoilcolumnwasusedtosimulatemechanismandmethodofchemicalreactionswellfordisintegratingcarbontetrachloride(CTC)ingroundwater.Resultsshowedthatcarbontetrachloridehashysteresisintheverticalmigrationofsoil,andduetotheinterception,concentrationsofbottomsamplingportswashigherthantheinitialconcentrationafter200h.Conversioneffectofcarbontetrachloridebyironpowderof50meshwashigherthantheother,andcharcoaladsorptionwashigherthancokeandcoconutshellcharcoal.Itwasfoundthatcombinationofironandzincwashigherthanthecombinationofironandcopperaswellascombinationofironandplumbuminbimetaljoint.Responsesurfacemethodologywasusedtooptimizemulti-factoroftheexperiment.ResultsshowedthatCTChighestconversionratewas69.4%undertheconditionsofactivatedcarbon25.7g,pH6.1,Fe0/Zn00.858.Theresultshavepositiveimplicationsforthetreatmento
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