Diethyl phthalate (DEP) is a chemical widely used in various materials. As a phthalic plasticizer, DEP has become a new pollutant in environment water. In this study, a double grounded dielectric barrier discharge (DBD) plasma was used to degrade DEP in wastewater. By adding packing materials into the discharge space, a new type of packed bed DBD plasma system was formed to enhance the discharge effect and improve the removal rate of DEP. The active sites of DEP were analyzed using reductive Fukui function, reductive double character description, and Mayer bond level. The reaction degradation pathways, including hydroxylation and cleavage reactions, were proposed. Overall, the new packed bed DBD plasma system is an efficient, environmentally friendly, and economical technology for the degradation of difficult-to-remove contaminants in water.

中文翻译：

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介电势垒放电对 DEP 在水中的优化及降解途径


邻苯二甲酸二乙酯 （DEP） 是一种广泛用于各种材料的化学品。DEP 作为邻苯二甲酸增塑剂，已成为环境水中的新型污染物。在这项研究中，使用双接地介电势垒放电 （DBD） 等离子体来降解废水中的 DEP。通过在卸料空间内添加填料，形成了一种新型的填充床 DBD 等离子体系统，以增强卸料效果并提高 DEP 的去除率。使用还原 Fukui 函数、还原双性状描述和 Mayer 键能级分析 DEP 的活性位点。提出了反应降解途径，包括羟基化和裂解反应。总体而言，新型填充床 DBD 等离子系统是一种高效、环保且经济的技术，用于降解水中难以去除的污染物。