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介质阻挡放电等离子体降解水中氯霉素

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Degradation of chloramphenicol in water by dielectric barrier discharge plasma

期刊信息

合肥工业大学（自然科学版），2025年8月，第48卷第8期：1009-1015，1021

DOI: 10.3969/j.issn.1003-5060.2025.08.001

作者信息

唐晨晨 $ ^{1} $，胡淑恒 $ ^{1} $，程诚 $ ^{2} $，韩伟 $ ^{3} $

（1. 合肥工业大学资源与环境工程学院，安徽合肥 230009；2. 中国科学院合肥物质科学研究院等离子体物理研究所，安徽合肥 230031；3. 中国科学院合肥物质科学研究院健康与医学技术研究所，安徽合肥 230031）

摘要和关键词

摘要: 氯霉素(CAP)作为一种广泛应用的抗生素，在水环境中具有较好的稳定性，导致传统的污水处理方法难以有效去除。等离子体技术作为一种高级氧化技术，被证明可以降解水中有机污染物。然而，传统的介质阻挡放电(dielectric barrier discharge, DBD)等离子体存在穿透能力弱的问题，限制其在CAP降解中的应用。针对该问题，文章设计一种新型DBD等离子体装置。该装置在传统基础上引入蠕动泵，确保所有的CAP污染物都能直接与活性物质接触，显著提高了CAP的去除率。通过实验探究CAP初始质量浓度、CAP溶液处理量、蠕动泵流速以及放电功率对CAP降解效果的影响。结果表明，CAP初始质量浓度为20 mg/L、放电功率为25 W的条件下，该装置在25 min内可实现80.4%的降解效率。同时还研究了自然水体中常见的阴离子（如 $ Cl^{-} $、 $ CO_{3}^{2-} $、 $ HCO_{3}^{-} $、 $ NO_{3}^{-} $）及腐殖质对CAP降解的影响。实验发现，上述物质会与放电产生的活性物质发生反应，在一定程度上抑制CAP的降解。最后通过质谱法对降解中间产物进行检测，并提出了可能的降解路径。该研究不仅为CAP的降解提供新的技术途径，也为等离子体技术在环境污染治理领域的应用提供重要参考。

关键词: 氯霉素(CAP)；介质阻挡放电(DBD)等离子体；阴离子；腐殖质

Authors

TANG Chenchen $ ^{1} $, HU Shuheng $ ^{1} $, CHENG Cheng $ ^{2} $, HAN Wei $ ^{3} $

(1. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; 2. Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; 3. Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China)

Abstract and Keywords

Abstract: Chloramphenicol(CAP), as a broad-spectrum antibiotic, is difficult to be removed by traditional sewage treatment because of its stability in water environment. As an advanced oxidation technology, plasma technology has been proved to degrade organic pollutants in water. However, the traditional dielectric barrier discharge (DBD) plasma technology has the problem of weak penetration, which limits its application in CAP degradation. To solve this problem, a new DBD plasma device is designed in this paper. The device introduces a peristaltic pump on the basis of conventional designs to ensure that all CAP contaminants can come into direct contact with the active substance, thus significantly improving the removal rate of CAP. The effects of the initial concentration of CAP, the amount of CAP solution, the flow rate of peristaltic pump and the discharge power on the degradation of CAP were experimentally investigated. The results showed that under the conditions of 20 mg/L initial concentration of CAP and 25 W discharge power, the device could achieve 80.4% degradation efficiency. cy within 25 min. In addition, the effects of common anions(such as $ Cl^{-} $, $ CO_{3}^{2-} $, $ HCO_{3}^{-} $, $ NO_{3}^{-} $) and humus on CAP degradation were studied. It was found that these substances would react with the active substances produced by the discharge, thus inhibiting the degradation of CAP. Finally, the degradation intermediates were detected by mass spectrometry and the possible degradation paths were proposed. This study not only provides a new technical way for the degradation of CAP, but also provides an important reference for the application of plasma technology in the field of environmental pollution control.

Keywords: chloramphenicol(CAP); dielectric barrier discharge(DBD) plasma; anions; humus

基金信息

国家自然科学基金联合基金资助项目（U20A20372）

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