Atmospheric Argon Plasma Jet for Post-Treatment of Biotreated Landfill Leachate

2018 International Electrical Engineering Congress (iEECON) Pub Date : 2018-03-01 DOI:10.1109/IEECON.2018.8712320

S. Theepharaksapan, K. Matra

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引用次数: 1

Abstract

Post-treatment of biotreated landfill leachate by atmospheric non-thermal plasma jet was proposed. A parallel operation of three atmospheric non-thermal argon plasma jets was applied for leachate treatment with water sample in strong acidic condition $(\mathbf{pH} < 2)$. Three cases with different gap distances for 1.5, 3 and 4.5 cm were employed with a $4.5\ \mathbf{kV}_{\text{rms}}$ 50 Hz AC neon sign transformer power source for 60 minutes. In this time, the influence of electrode gap distance $(\text{G}_{\text{d}})$ of argon plasma jet on the degradation of refractory organic compounds in biotreated landfill leachate was observed. Some key parameters of water quality including pH, DO, temperature, COD and the macromolecules, such as humic and fulvic substances, were measured before and after treatment. The result showed that the maximum removal of COD (33.9%), fulvic (53.3 %), humic (32.2%), and visible humic substances (57.2%) was found with the operating condition in 4.5 cm $\text{G}_{\text{d}}$ case. It could be confirmed that atmospheric non-thermal Ar plasma had the potential to effectively reduce the refractory organic compounds in wastewater which could be exploited for post-treatment of biotreated landfill leachate.

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常压氩等离子体射流处理垃圾渗滤液

提出了常压非热等离子体射流对垃圾渗滤液进行后处理的方法。采用三种常压非热氩等离子体射流并联操作，对强酸性条件下的水样$(\mathbf{pH} < 2)$进行渗滤液处理。使用$4.5\ \mathbf{kV}_{\text{rms}}$ 50 Hz交流霓虹灯变压器电源，使用3个不同间距为1.5、3和4.5 cm的箱体60分钟。本文考察了氩等离子体射流电极间隙距离$(\text{G}_{\text{d}})$对生物处理后垃圾渗滤液中难降解有机物的影响。测定了处理前后的pH、DO、温度、COD等关键水质参数和腐殖质、腐殖质等大分子物质。结果表明，在4.5 cm $\text{G}_{\text{d}}$的工况下，COD去除率最高(33.9%)，腐殖质去除率最高(53.3%)，腐殖质去除率最高(32.2%)，可见腐殖质去除率最高(57.2%)。结果表明，常压非热氩等离子体具有有效还原废水中难降解有机物的潜力，可用于生物处理垃圾渗滤液的后处理。

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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2018 International Electrical Engineering Congress (iEECON)

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