无介质便携式三电极冷等离子体放电系统的水修复。

IF 1.9 4区 环境科学与生态学 Q4 ENGINEERING, ENVIRONMENTAL
Prathana Sutjitjoon, Wasin Nupangtha, Kamtorn Saidarasamoot, Kitsakorn Locharoenrat, Sarai Lekchaum
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引用次数: 0

摘要

介绍了一种便携式多电极冷等离子体电晕放电系统的设计与应用。该系统产生稳定的等离子体,没有介电屏障,产生活性物质,如羟基自由基、过氧化氢、亚硝酸盐和硝酸盐。实验结果表明,在优化的电极距离为0.20 cm时,污染物降解效率为100%,在125 s内将模型污染物亚甲基蓝从6 ppm降至0 ppm。这种优化最大限度地降低了等离子体流的电弧和自碰撞风险,同时保持了连续的等离子体放电,确保了最大的击穿电压和高离子密度,从而实现了高效的等离子体生产。该系统进一步展示了其在COVID-19大流行期间将洗手作为目标污染物以降低感染风险的应用。对比分析突出了该系统在快速处理、能源效率和低成本运行方面的优势。处理后的水符合世界卫生组织(WHO)废水排放标准和WHO消除病毒指南,残留氮化合物保持在50 ppm以下,过氧化氢水平保持在5000 ppm以下,证实了该系统在减少病原体和净化废水方面的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Water remediation with a dielectric-free portable triple-electrode cold plasma discharge system.

This paper presents the design and application of a portable multi-electrode cold plasma corona discharge system for pollutant degradation in wastewater. The system generated stable plasma without a dielectric barrier, producing active species such as hydroxyl radicals, hydrogen peroxide, nitrite, and nitrate. The experimental results presented a pollutant degradation efficiency of 100%, reducing methylene blue as a model pollutant from 6 ppm to 0 ppm within 125 s at an optimized electrode distance of 0.20 cm. This optimization minimizes the risks associated with the arcing and self-collision of plasma streams while sustaining continuous plasma discharge, ensuring the maximum breakdown voltage and high ion density for efficient plasma production. The system further demonstrated its application in treating hand washing as a target pollutant to reduce the risk of infection during the COVID-19 pandemic. A comparative analysis highlighted the advantages of the system in terms of rapid treatment, energy efficiency, and low-cost operation. The processed water met the World Health Organization (WHO) wastewater discharge standards and WHO guidelines for virus elimination, with residual nitrogen compounds maintained below 50 ppm and hydrogen peroxide levels kept under 5,000 ppm, confirming the effectiveness of the system in pathogen reduction and wastewater purification.

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来源期刊
CiteScore
4.10
自引率
4.80%
发文量
93
审稿时长
3.0 months
期刊介绍: 14 issues per year Abstracted/indexed in: BioSciences Information Service of Biological Abstracts (BIOSIS), CAB ABSTRACTS, CEABA, Chemical Abstracts & Chemical Safety NewsBase, Current Contents/Agriculture, Biology, and Environmental Sciences, Elsevier BIOBASE/Current Awareness in Biological Sciences, EMBASE/Excerpta Medica, Engineering Index/COMPENDEX PLUS, Environment Abstracts, Environmental Periodicals Bibliography & INIST-Pascal/CNRS, National Agriculture Library-AGRICOLA, NIOSHTIC & Pollution Abstracts, PubSCIENCE, Reference Update, Research Alert & Science Citation Index Expanded (SCIE), Water Resources Abstracts and Index Medicus/MEDLINE.
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