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CaO机械化学法去除土壤中DDTs的工艺参数优化

张冬格 隋红 宋静 李海波 申洋洋 黄玉娟

张冬格, 隋红, 宋静, 李海波, 申洋洋, 黄玉娟. CaO机械化学法去除土壤中DDTs的工艺参数优化[J]. 环境科学研究, 2016, 29(9): 1336-1343.
引用本文: 张冬格, 隋红, 宋静, 李海波, 申洋洋, 黄玉娟. CaO机械化学法去除土壤中DDTs的工艺参数优化[J]. 环境科学研究, 2016, 29(9): 1336-1343.
ZHANG Dongge, SUI Hong, SONG Jing, LI Haibo, SHEN Yangyang, HUANG Yujuan. Optimization of the Operational Parameters for Mechanochemical Degradation of DDTs in Contaminated Soil with Calcium Oxide[J]. Research of Environmental Sciences, 2016, 29(9): 1336-1343.
Citation: ZHANG Dongge, SUI Hong, SONG Jing, LI Haibo, SHEN Yangyang, HUANG Yujuan. Optimization of the Operational Parameters for Mechanochemical Degradation of DDTs in Contaminated Soil with Calcium Oxide[J]. Research of Environmental Sciences, 2016, 29(9): 1336-1343.

CaO机械化学法去除土壤中DDTs的工艺参数优化

基金项目: 国家自然科学基金面上项目(41471262,41471258)

Optimization of the Operational Parameters for Mechanochemical Degradation of DDTs in Contaminated Soil with Calcium Oxide

  • 摘要: 为了探究应用机械化学技术处理高浓度DDTs污染土壤的最优工艺,以CaO为球磨药剂,采用行星式球磨机对高浓度DDTs污染土壤进行球磨无害化处理研究,分析不同尺寸磨球配比、球磨机转速、球料比(磨球与物料的质量比)和物料比(CaO与土壤的质量比)对DDTs的去除效果,并通过响应面法优化工艺参数.结果表明:单独使用大球(直径20 mm)球磨4 h后,土壤中DDTs残余量为4 mg/kg;而单独使用其他更小尺寸(10和8 mm)的磨球或不同尺寸磨球组合处理下的DDTs残余量均超过80 mg/kg,与单独使用大球处理的效果有显著差异.单因素试验结果显示,去除土壤DDTs的最佳参数为转速500 r/min、球料比35∶1、物料比5∶10,在该工艺条件下球磨3 h后土壤中DDTs残余量为44 mg/kg,去除率可达99.6%.依据三因素三水平的Box-Behnken试验建立的响应面模型可较好地反映土壤中DDTs残余量与转速、球料比和物料比之间的关系,各因素对土壤中DDTs残余量的影响大小表现为球料比>转速>物料比;通过优化计算得到使DDTs残余量达到最低时的工艺参数为转速500 r/min、球料比24∶1、物料比5∶10,在该工艺条件下球磨3 h后土壤中DDTs残余量为369 mg/kg,可见响应面法优化并未能够筛选出最优的球料比.因此,CaO机械化学法无害化处理高浓度DDTs污染土壤的最优工艺参数为各单因素试验确定的工艺条件组合,即球磨转速500 r/min、球料比35∶1、物料比5∶10.

     

  • [1] 李国刚,李红莉.持久性有机污染物在中国的环境监测现状.中国环境监测,2004,20(4):53-60.LI Guogang,LI Hongli.The present status of persistent organic pollutants(POPs) environmental monitoring in China.Envionmental Monitoring in China,2004,20(4):53-60.
    [2] 王瑛,李扬,黄启飞,等.温度和停留时间对DDT污染土壤热脱附效果的影响.环境工程,2012,30(1):116-120.WANG Ying,LI Yang,HUANG Qifei,et al.Effects of temperature and residue time on treatment of DDTs contaminated soil by thermal desorption technology.Environmental Engineering,2012,30(1):116-120.
    [3] 李希明,陈家镛.机械化学在资源和材料化工及环保中的应用.化工冶金,2000,21(4):443-448.LI Ximing,CHEN Jiayong.Application of mechanochemistry in resource and material engineering chemistry and environmental protection.Engineering Chemistry & Metallurgy,2000,21(4):443-448.
    [4] ROWLANDS S A,HALL A K,MCCORMICK P G,et al.Destruction of toxic materials.Nature,1994,367(6460):223.
    [5] TONGAMP W,ZHANG Q,SAITO F.Mechanochemical decomposition of PVC by using La2O3 as additive.Journal of Hazardous Materials,2006,137(2):1226-1230.
    [6] LU Shengyong,HUANG Jianxin,PENG Zheng,et al.Ball milling 2,4,6-trichlorophenol with calcium oxide:dechlorination experiment and mechanism considerations.Chemical Engineering Journal,2012,195/196:62-68.
    [7] WEI Yinglei,YAN Jianhua,LU Shengyong,et al.Mechanochemical decomposition of pentachlorophenol by ball milling.Journal of Environmental Sciences,2009,21(12):1761-1768.
    [8] ZHANG Kunlun,HUANG Jun,WANG Haizhu,et al.Mechanochemical destruction of decabromodiphenyl ether into visible light photocatalyst BiOBr.RSC Advances,2014,4(28):14719-14724.
    [9] ZHANG Kunlun,HUANG Jun,ZHANG Wang,et al.Mechanochemical degradation of tetrabromobisphenol A:performance,products and pathway.Journal of Hazardous Materials,2012,243:278-285.
    [10] ZHANG Kunlun,HUANG Jun,YU Gang,et al.Destruction of perfluorooctane sulfonate(PFOS) and perfluorooctanoic acid(PFOA) by ball milling.Environmental Science & Technology,2013,47(12):6471-6477.
    [11] TANAKA Y,ZHANG Q W,SAITO F,et al.Dependence of mechanochemically induced decomposition of mono-chlorobiphenyl on the occurrence of radicals.Chemosphere,2005,60(7):939-943.
    [12] WANG Haizhu,HUANG Jun,ZHANG Kunlun,et al.Effects of zero-valent metals together with quartz sand on the mechanochemical destruction of dechlorane plus coground in a planetary ball mill.Journal of Hazardous Materials,2014,264:230-235.
    [13] ZHANG Wang,WANG Haizhu,HUANG Jun,et al.Acceleration and mechanistic studies of the mechanochemical dechlorination of HCB with iron powder and quartz sand.Chemical Engineering Journal,2014,239:185-191.
    [14] 隋红,李海波,宋静,等.高浓度DDTs污染土壤机械化学球磨试剂筛选.环境科学研究,2015,28(8):1227-1233.SUI Hong,LI Haibo,SONG Jing,et al.Selection of milling reagents for mechanochemical degradation of high concentrations of DDTs in contaminated soil.Research of Environmental Sciences,2015,28(8):1227-1233.
    [15] 张望.基于Fe-SiO2的POPs废物机械化学处置工艺及机理研究.北京:清华大学,2012.
    [16] PIZZIGALLO M D R,NAPOLA A,SPAGNUOLO M,et al.Mechanochemical removal of organo-chlorinated compounds by inorganic components of soil.Chemosphere,2004,55(11):1485-1492.
    [17] ZHANG Kunlun,HUANG Jun,WANG Haizhu,et al.Mechanochemical degradation of hexabromocyclododecane and approaches for the remediation of its contaminated soil.Chemosphere,2014,116:40-45.
    [18] 隋红,吴鹏,宋静,等.土壤样品中低浓度滴滴涕分析方法的前处理研究.分析测试学报,2013,32(11):1369-1373.SUI Hong,WU Peng,SONG Jing,et al.Establishment of sample pretreatment method for the determination of low levels of DDTs in soils.Journal of Instrumental Analysis,2013,32(11):1369-1373.
    [19] TAN K T,LEE K T,MOHAMED A R.A glycerol-free process to produce biodiesel by supercritical methyl acetate technology:an optimization study via Response Surface Methodology.Bioresource Technology,2010,101(3):965-969.
    [20] MIO H,SAEKI S,KANO J,et al.Estimation of mechanochemical dechlorination rate of poly(vinyl chloride).Environmental Science & Technology,2002,36(6):1344-1348.
    [21] 卫樱蕾.机械化学法降解POPs试验及机理研究.杭州:浙江大学,2010.
    [22] ABDELLAOUI M,GAFFET E.The physics of mechanical alloying in a planetary ball mill-mathematical treatment.Acta Metallurgica et Materialia,1995,43(3):1087-1098.
    [23] 张晓宇.基于机械化学球研磨技术POPs的降解及机理研究.大连:大连交通大学,2013.
    [24] XU Zhi,ZHANG Xiaoyu,FEI Qingzhi.Dechlorination of pentachlorophenol by grinding at low rotation speed in short time.Chinese Journal of Chemical Engineering,2015,23(3):578-582.
    [25] YAN Jianhua,PENG Zheng,LU Shengyong,et al.Degradation of PCDD/Fs by mechanochemical treatment of fly ash from medical waste incineration.Journal of Hazardous Materials,2007,147(1/2):652-657.
    [26] DELOGU F,ORR R,CAO G.A novel macrokinetic approach for mechanochemical reactions.Chemical Engineering Science,2003,58(3/4/5/6):815-821.
    [27] SANTHANAM P R,DREIZIN E L.Predicting conditions for scaled-up manufacturing of materials prepared by ball milling.Powder Technology,2012,221:403-411.
    [28] SAEKI S,KANO J,SAITO F,et al.Effect of additives on dechlorination of PVC by mechanochemical treatment.Journal of Material Cycles and Waste Management,2001,3(1):20-23.
    [29] NOMURA Y,NAKAI S,HOSOMI M.Elucidation of degradation mechanism of dioxins during mechanochemical treatment.Environmental Science & Technology,2005,39(10):3799-3804.
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出版历程
  • 收稿日期:  2016-03-15
  • 修回日期:  2016-05-04
  • 刊出日期:  2016-09-25

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