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首页> 外文期刊>Journal of Hazardous Materials >Degradation of paracetamol by catalytic wet air oxidation and sequential adsorption - Catalytic wet air oxidation on activated carbons
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Degradation of paracetamol by catalytic wet air oxidation and sequential adsorption - Catalytic wet air oxidation on activated carbons

机译：催化湿空气氧化和顺序吸附降解扑热息痛-活性炭上的催化湿空气氧化

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摘要

The concern about the fate of pharmaceutical products has raised owing to the increasing contamination of rivers, lakes and groundwater. The aim of this paper is to evaluate two different processes for paracetamol removal. The catalytic wet air oxidation (CWAO) of paracetamol on activated carbon was investigated both as a water treatment technique using an autoclave reactor and as a regenerative treatment of the carbon after adsorption in a sequential fixed bed process. Three activated carbons (ACs) from different source materials were used as catalysts: two microporous basic ACs (S23 and Cl) and a meso- and micro-porous acidic one (L27). During the first CWAO experiment the adsorption capacity and catalytic performance of fresh S23 and Cl were higher than those of fresh L27 despite its higher surface area. This situation changed after AC reuse, as finally L27 gave the best results after five CWAO cycles. Respirometry tests with activated sludge revealed that in the studied conditions the use of CWAO enhanced the aerobic biodegradability of the effluent. In the ADOX process L27 also showed better oxidation performances and regeneration efficiency. This different ageing was examined through AC physico-chemical properties.
机译：由于河流，湖泊和地下水的污染日益严重，人们对药品的命运越来越感到担忧。本文的目的是评估两种不同的扑热息痛去除方法。研究了扑热息痛在活性炭上的催化湿式空气氧化（CWAO），既是使用高压釜反应器的水处理技术，又是顺序固定床工艺中吸附后碳的再生处理。来自不同原料的三种活性炭（AC）被用作催化剂：两种微孔碱性AC（S23和Cl）和一种中孔和微孔酸性AC（L27）。在第一个CWAO实验中，尽管新鲜S23和Cl的表面积较大，但其吸附能力和催化性能却高于新鲜L27。 AC重新使用后，这种情况发生了变化，因为最后L27在五个CWAO循环后给出了最佳结果。用活性污泥进行的呼吸测定试验表明，在研究的条件下，使用CWAO可以增强废水的好氧生物降解能力。在ADOX工艺中，L27还表现出更好的氧化性能和再生效率。通过AC的理化性质检查了这种不同的老化。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2012年第30期|p.131-138|共8页
  • 作者

    I. Quesada-Penate; C. Julcour-Lebigue; U.J. Jauregui-Haza; A.M. Wilhelm; H. Delmas;

  • 作者单位

    Universite de Toulouse, INPT, UPS. Laboratoire de Genie Chimique, 4, Allee Emile Monso, F-31432 Toulouse, France,CNRS, Laboratoire de Genie Chimique, F-31432 Toulouse, France;

    Universite de Toulouse, INPT, UPS. Laboratoire de Genie Chimique, 4, Allee Emile Monso, F-31432 Toulouse, France,CNRS, Laboratoire de Genie Chimique, F-31432 Toulouse, France;

    Instituto Superior de Tecnologias y Ciencias Aplicadas, Ave. Salvador Allende y Luaces, Habana, Cuba;

    Universite de Toulouse, INPT, UPS. Laboratoire de Genie Chimique, 4, Allee Emile Monso, F-31432 Toulouse, France,CNRS, Laboratoire de Genie Chimique, F-31432 Toulouse, France,Deceased on 1st June 2009;

    Universite de Toulouse, INPT, UPS. Laboratoire de Genie Chimique, 4, Allee Emile Monso, F-31432 Toulouse, France,CNRS, Laboratoire de Genie Chimique, F-31432 Toulouse, France;

  • 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

    catalytic oxidation; adsorption; activated carbon; biodegradability; paracetamol;

    机译：催化氧化吸附活性炭;生物降解性扑热息痛;

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