挥发性有机污染物甲硫醇治理方法及反应过程研究进展
Treatment methods and reaction processes of volatile organic pollutants methyl mercaptan
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摘要: 甲硫醇（CH3SH）作为一种典型的挥发性含硫有机污染物（SVOCs），具有很强的毒性，其存在会对环境和人体健康以及生产生活造成严重的危害.随着我国环保工作的深入开展，加强甲硫醇治理研究工作刻不容缓.本文介绍了甲硫醇治理的常见方法，主要包括物理法、化学法和生物法，并对催化法反应过程以及反应机理进行了探究.通过对比分析各治理方法的优缺点，指出催化分解法在甲硫醇治理方面具有显著的优势和重要的研究前景.合理调控催化剂的酸碱性能、有效提高催化剂的氧化还原性能、构建高性能催化剂将是催化分解法处理甲硫醇研究方向的重点.Abstract: Methyl mercaptan(CH3SH) is one of the representative sulfur-containing volatile organic compounds (SVOCs) with high toxicity and very low olfactory threshold, which is harmful to human health and can cause corrosive effects on environment. The development of efficient processes to reduce this emissions is highly required. The present review highlights recent major progress in the development of different methods for CH3SH treatment, which includes physical, chemical and biological processes. Furthermore, the specific reaction processes and mechanistic investigations for the catalytic treatment method are discussed and the advantages and disadvantages of different methods are compared. As a result, it is recommended that catalytic decomposition method is the most promising way to treat CH3SH emissions. In addition, the dependence of catalytic activity on some key influencing factors, including acid-base and redox properties are developed to prepare the catalysts with high performance, which has gained much attention in this field.
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