Liquid chromatography mass spectrometry (LC-MS) of phenol degradation using plasma electrolysis method

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI:10.1063/5.0062197

J. Z. Wahono, Harianingsih, Z. M. Talitha, N. Saksono

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Abstract

In waste, one of the important indicators is Chemical Oxygen Demand (COD). COD is the need for oxygen to oxidize organic substances contained in one liter of water. Chemical or chemical oxygen requirements for the oxidation reaction of waste materials in water. Chemical Oxygen Demand is an important water quality parameter because it can assess the effect of effluent from wastewater to be discharged into the receiving environment (water bodies). In this study, COD analysis was carried out using optimum conditions at 700 W and an air injection flow rate of 0.2 lpm, 0.02 M concentration of Na2SO4 electrolyte, 0.5 cm tungsten anode depth, 60°C of operating temperature, 100 mg/L initial phenol waste concentration, Fe2+ ion concentration 20 mg/L, volume of sample solution 1.5 L, and stirring speed 2 mot. The results showed a decrease in COD levels which only reached 71.14% due to cyclic chains in the widest area. Observation analysis of LC MS obtained the formation of intermediate compounds which include 2-Oxo-1.3-dioxole-4.5-dicarboxylic acid, ethyleneetetracarboxylic acid, and 2.2-oxydisuccinic acid.

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等离子电解法降解苯酚的液相色谱-质谱分析

在废物中，化学需氧量(COD)是一个重要的指标。COD是一升水中所含有机物氧化所需的氧气。化学或化学需氧量用于废水中的氧化反应。化学需氧量是一个重要的水质参数，它可以评价废水排放到接收环境(水体)的效果。在本研究中，COD分析的最佳条件为:700 W，空气喷射流量0.2 lpm, Na2SO4电解质浓度0.02 M，钨阳极深度0.5 cm，工作温度60℃，苯酚废物初始浓度100 mg/L, Fe2+离子浓度20 mg/L，样品溶液体积1.5 L，搅拌速度2 mot。结果表明，由于环链的影响，最大面积的COD含量下降了71.14%。LC - MS观察分析得到中间化合物的形成，包括2-氧-1.3-二恶唑-4.5-二羧酸、乙烯四羧酸和2.2-氧-二琥珀酸。

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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3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)

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