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首页> 外文会议>2011 International Symposium on Water Resource and Environmental Protection >Pretreatment of pharmaceutical wastewater by catalytic wet air oxidation(CWAO)
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Pretreatment of pharmaceutical wastewater by catalytic wet air oxidation(CWAO)

机译：催化湿式氧化（CWAO）预处理制药废水

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摘要

Pharmaceutical industrial wastewater contains highly concentrated and toxic organic compounds which can not be removed by conventional treatment methods. The present study explores a possible method for the effective removal of organic compounds by wet air oxidation (WAO) and catalytic wet air oxidation (CWAO).The results show that 36% of chemical oxygen demand (COD) removal was achieved after 1 hour reaction at 300 °C by the WAO method. Homogenous copper nitrate catalyst exhibites better performance than WAO even at a lower temperature of 220°C. Mn-Ce catalyst prepare in our laboratory is used in the CWAO of the wastewater and 94% of the COD is removed after 80 minutes of oxidation. Moreover, this catalyst also indicates a good stability of activity in CWAO of pharmaceutical industrial wastewater. The color variation and the pH profiles are also analyzed for catalytic oxidation over Mn-Ce catalyst.
机译：制药工业废水中含有高浓度和有毒的有机化合物，这些化合物无法通过常规处理方法去除。本研究探索了一种通过湿空气氧化（WAO）和催化湿空气氧化（CWAO）有效去除有机化合物的可能方法，结果表明，反应1小时后可去除36％的化学需氧量（COD）。在300°C下通过WAO方法。均匀的硝酸铜催化剂即使在220°C的较低温度下也表现出比WAO更好的性能。我们实验室制备的Mn-Ce催化剂用于废水的CWAO中，氧化80分钟后，可去除94％的COD。此外，该催化剂还表明在制药工业废水的CWAO中具有良好的活性稳定性。还分析了颜色变化和pH曲线，以分析Mn-Ce催化剂上的催化氧化。

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