双接地电极 DBD 反应器对水中 DEP 降解的实验研究

IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Shiyue Liu, Xuhong Jin, Siyu Zhang, Cong Wang, Xinjun Shen
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引用次数: 0

摘要

近年来,由于工业化的快速发展,水环境中普遍可以检测到增塑剂,而邻苯二甲酸二乙酯(DEP)作为一种邻苯增塑剂,是水环境中新出现的污染物,危害人类健康,破坏环境。本研究利用双接地介质阻挡放电(DBD)等离子体降解 DEP 废水,并设计了填料床反应器,通过增强放电效应提高 DEP 的降解率。本文比较研究了不同填料在 DBD 等离子体放电空间中的填料性能,优化了传统的 DBD 等离子体,并测试了不同填料(玻璃球和玻璃管)在 DBD 反应器中的填装情况。采用响应面法确定了不同材料在尺寸、填料体积和通气流速之间的影响,并进行了优化实验。当使用玻璃球作为填充材料时,响应输出最优值的去除率可达 96.62%;当使用玻璃管作为填充材料时,响应输出最优值的去除率可达 89.78%。通过自由基抑制实验研究了填充床 DBD 放电系统中各种活性颗粒对 DEP 的降解情况。使用 5 mmoL/L IPA、BQ 和 PS 进行放电处理 40 分钟后,去除率分别为 17.81%、48.30% 和 17.81%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Study on DEP Degradation in Water by Double Grounded Electrode DBD Reactor

In recent years, due to the rapid development of industrialisation, plasticisers can be commonly detected in the aqueous environment, and diethyl phthalate (DEP), as an o-phenyl plasticiser, is an emerging pollutant in the aqueous environment, which endangers human health and damages the environment. In this study, a double grounded dielectric barrier discharge (DBD) plasma was utilised for the degradation of DEP wastewater, and a packed-bed reactor was designed so that the degradation rate of DEP was enhanced by the enhanced discharge effect. This paper compares the investigation of the packing performance of different packing materials in the DBD plasma discharge space, optimising a conventional DBD plasma, and testing the filling of different filling materials (glass spheres and glass tubes) in a DBD reactor. Response surface method was used to determine the effect of different materials between size, packing volume and through air flow rate and optimisation experiments were carried out. When glass spheres are used as filler material, the removal rate of the response output optimum can reach 96.62%; When the glass tube is used as filler material, the response output optimum value of 89.78% removal can be achieved. The degradation of DEP by various active particles within the filled-bed DBD discharge system was investigated by free radical inhibition experiments. The removal rates were 17.81%, 48.30% and 17.81% after 40 min of discharge treatment with 5 mmoL/L IPA, BQ and PS, respectively.

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来源期刊
CiteScore
7.20
自引率
4.30%
发文量
567
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