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Retention-oxidation-adsorption process for emergent treatment of organic liquid spills

机译：保留-氧化-吸附工艺处理有机液体溢出物

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摘要

The feasibility and effectiveness of retention-oxidation-adsorption process (ROA) for the elimination of organic contaminants induced by chemical accidents were investigated in this study. Organobentonites (DTMA-, TTA-, CTMA- and OTMA-bentonite), potassium ferrate (Fe(VI)), ozone and granular activated carbon (GAC) were used as rapid and efficient materials in the treatment and recovery of organic liquid spills. Results indicated that the retention capacities of organobentonites (especially CTMA-bentonite) were much higher than that of natural bentonite towards the chosen organic compounds. Additionally, pH, oxidant dosage, initial concentration of contaminant and chemical structure had significant influences on the effectiveness of the oxidation process. In a pilot-scale experiment, the ferrate/GAC (F/G) and ozone/GAC (O/G) processes made a comparatively good performance in the treatment of wastewater containing aniline or nitrobenzene, with the removal efficiencies of the contaminants greater than 80%. Overall, the ROA process showed a high efficiency and steady operation in the removal of hazardous organic liquids and subsequent clean up of the contaminated site.
机译：本文研究了保留-氧化-吸附过程（ROA）消除化学事故引起的有机污染物的可行性和有效性。有机膨润土（DTMA，TTA，CTMA和OTMA膨润土），高铁酸钾（Fe（VI）），臭氧和颗粒状活性炭（GAC）被用作处理和回收有机液体溢漏的快速有效材料。结果表明，有机膨润土（特别是CTMA膨润土）对所选有机化合物的保留能力远高于天然膨润土。另外，pH，氧化剂剂量，污染物的初始浓度和化学结构对氧化过程的有效性具有重要影响。在中试实验中，高铁酸盐/ GAC（F / G）和臭氧/ GAC（O / G）工艺在处理含苯胺或硝基苯的废水中具有相对较好的性能，污染物的去除效率大于80％。总体而言，ROA工艺在去除有害有机液体以及随后清理受污染场地方面显示出高效率且稳定运行。

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  • 来源
    《Journal of Hazardous Materials》 |2011年第2011期|p.162-169|共8页
  • 作者

    Xianjun Liu; Yu Li; Xingwang Zhang; Lecheng Lei;

  • 作者单位

    Institute of Industrial Ecology and Environment, Zhejiang University, Hangzhou 310027, PR China;

    Institute of Industrial Ecology and Environment, Zhejiang University, Hangzhou 310027, PR China;

    Institute of Industrial Ecology and Environment, Zhejiang University, Hangzhou 310027, PR China;

    Institute of Industrial Ecology and Environment, Zhejiang University, Hangzhou 310027, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    retention-oxidation-adsorption process; organic liquid spill; organobentonite; ferrate; ozone;

    机译：保留-氧化-吸附过程;有机液体泄漏;有机膨润土高铁臭氧;

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