Electrochemical Oxidation of Ethylene Glycol in Aqueous Media Using Lead Dioxide Titanium Anode

Q3 Environmental Science

Ecology and Industry of Russia Pub Date : 2024-05-08 DOI:10.18412/1816-0395-2024-5-25-33

V.B. Torshin, A. A. Povorov, M.V. Krotova, A.A. Yakusheva, A.S. Motygina, N.M. Protasova

引用次数: 0

Abstract

Experiments on the electrochemical oxidation of ethylene glycol (EG) have been carried out in laboratory conditions using lead dioxide titanium anode (LDOTA) in electrochemical cell. It has been found that the chemical oxygen consumption in the solution on LDOTA at a current density of 5.5 A/dm2 and processing time of 120 min is reduced to the values that allow its further bio-purification. It has been concluded that the efficiency of the electrochemical oxidation process, leading to further destruction of the EG molecule, is explained by both direct oxidation, in which the hydroxyl radicals arise that oxidize EG on the anode surface, and indirect oxidation, accompanied by the formation of strong oxidizing agents, for example, peroxodisulfuric acid anions capable of oxidizing the organic matter in the solution volume.

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使用二氧化铅钛阳极进行水介质中乙二醇的电化学氧化

在实验室条件下，使用电化学电池中的二氧化铅钛阳极（LDOTA）进行了乙二醇（EG）的电化学氧化实验。实验发现，在电流密度为 5.5 A/dm2 和处理时间为 120 分钟的条件下，溶液在 LDOTA 上的化学耗氧量降低到了可以进一步进行生物净化的值。得出的结论是，导致 EG 分子进一步破坏的电化学氧化过程的效率可通过直接氧化和间接氧化来解释，前者产生的羟基自由基可氧化阳极表面上的 EG，后者伴随着强氧化剂的形成，例如能够氧化溶液中有机物的过二硫酸阴离子。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ecology and Industry of Russia Environmental Science-Ecology

CiteScore

1.00

自引率

0.00%

发文量

101

期刊介绍： The Journal "Ekologia i promyshlennost Rossii" («Ecology and Industry of Russia») is aimed to promote acquaintance of the world scientific and technical public and specialists, interested in the problems of the environment protection, with advanced achievements of the science and engineering practice on securing of stable (self-supporting) evolution within the limits of the United Nations accepted recommendations (RIO 92 and RIO+20). A circle of papers includes basic researches and engineering decisions, analytical and methodical operations, reviews on journal subjects. The journal lays special emphasis on methodical elaborations, analytical investigations in the sphere of creating the ecological culture of the population, to the features of ecological education in higher schools of the country for the sake of actualization in specialists'' consciousness of the scientific necessity to know environmental problems of the modern civilization and paths of their settlement. Original papers and investigations of scientists and specialists on separate themes occupy an independent niche of issues under the «Cover story» heading. The journal task is to promote practical implementation of scientific and engineering decisions in the field of decrease of anthropogenic load on the biosphere and environment protection (open lectures, round tables, discussions and so forth). Ecology and Industry of Russia is an informational reference book about the newest developments of the Russian and foreign scientists and the companies realized in Russia, the CIS and Baltic countries, and far-abroad countries. The journal publishes information reports about holding in Russia and abroad the international, all-Russian and regional congresses, conferences, and symposiums related to the journal subjects.