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DC Water Plasma at Atmospheric Pressure for the Treatment of Aqueous Phenol

机译：常压直流水等离子体处理苯酚水溶液

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摘要

This study investigated the decomposition of aqueous phenol by direct current (DC) water plasma. The operation of OC water plasma was carried out in the absence of inert gases or air injected and cooling-controlled and pressure-controlled devices. The results indicated that 1 mol.% (52.8 g L~(-1)) phenol was drastically decomposed by DC water plasma touch with energy efficiencies of 1.9 × 10~(-8)-2.2 × 10~(-8) mol J~(-1). Also, the value of chemical oxygen demand (COD) was reduced from 100 000 mg L~(-1) down to 320 mg L~(-1) over a short retention time. The maximum decomposition rate of the COO was 258 mg COD min~(-1) for the arc power of 0.91 kW. In the effluent analysis, H_2 (63-68%), CO (3.6-6.3%), CO_2 (25.3-28.1%) were major products in the exhaust gas and CH_4, C_2H_2, HCOOH and C_6H_6 in trace level. Further, HCOOH and HCHO were observed in the liquid effluents. Within the current paper, the results indicated that the DC water plasma torch is capable of an alternative green technology for phenol wastewater containing high COD.
机译：这项研究研究了直流水等离子体对苯酚水溶液的分解。 OC水等离子体的操作是在没有惰性气体或空气注入以及冷却控制和压力控制的设备的情况下进行的。结果表明，1 mol％（52.8 g L〜（-1））苯酚被直流水等离子触摸彻底分解，能量效率为1.9×10〜（-8）-2.2×10〜（-8）mol J 〜（-1）。同样，在短时间内，化学需氧量（COD）值从100 000 mg L〜（-1）降至320 mg L〜（-1）。当电弧功率为0.91 kW时，COO的最大分解速率为258 mg COD min〜（-1）。在出水分析中，H_2（63-68％），CO（3.6-6.3％），CO_2（25.3-28.1％）是废气中的主要产物，CH_4，C_2H_2，HCOOH和C_6H_6的痕量水平。此外，在液体流出物中观察到了HCOOH和HCHO。在本文中，结果表明，直流水等离子炬能够替代绿色化学技术，用于处理含有高COD的苯酚废水。

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  • 来源
    《Environmental Science & Technology》 |2010年第12期|P.4710-4715|共6页
  • 作者

    MIN-HAO YUAN; rnNARENG ERILE; TAKAYUKI WATANABE; CHING-YUAN CHANG;

  • 作者单位

    Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama, 226-8502, Japan Graduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, Taiwan;

    rnDepartment of Environmental Chemistry and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama, 226-8502, Japan;

    rnDepartment of Environmental Chemistry and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama, 226-8502, Japan;

    rnGraduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, Taiwan;

  • 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);
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  • 正文语种 eng
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