经典Fenton和电Fenton技术降解纺织工业废水中聚乙烯醇的比较研究

IF 0.5 4区 化学 Q4 CHEMISTRY, ANALYTICAL Journal of Water Chemistry and Technology Pub Date : 2023-09-21 DOI:10.3103/S1063455X23050028
Mohammad Aldaher,  Erhan Gengec
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引用次数: 0

摘要

含有高浓度聚乙烯醇(PVA)的废水能够抵抗诸如生物氧化之类的传统方法,并且在诸如混凝和吸附之类的化学过程的情况下需要高剂量的化学品。鉴于这些特点,对经典芬顿(CF)和电芬顿(EF)处理纺织工业废水中的PVA进行了比较研究。根据CF的结果,在pH 3.0、H2O2用量为43.5g/L、FeSO4·7H2O用量为2.5g/L的条件下,24h对总有机碳的最佳去除率为81%,在最佳值(pH 3、H2O2剂量=43.5g/L和电流的0.58A)下,在120min时达到85.5%。当CF法的处理成本为78.206欧元/立方米时,EF法为78.046欧元/立方米。在文献中首次对EF和CF处理含PVA废水进行了对比研究,获得了较高的处理效率。在本研究中,观察了EF过程中pH的变化及其对处理效率的负面影响。确定是否需要持续调节pH值以消除这些负面影响是本研究最重要的成果之一。此外,与CF相比,EF获得了更高的处理效率。
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A Comparative Study among the Technology Classic Fenton and Electro-Fenton for the Degradation of Polyvinyl Alcohol in Textile Industrial Wastewater

Wastewater containing high concentrations of polyvinyl alcohol (PVA) resists conventional methods such as biological oxidation and requires high doses of chemicals in the case of chemical processes such as coagulation and adsorption. Due to these features, a comparative study has been conducted for the treatment of PVA in textile industrial wastewater by classic Fenton (CF) and electro-Fenton (EF). According to the results of CF, the optimum removal efficiency of the total organic carbon was obtained as 81% at pH 3.0, 43.5 g/L of H2O2 dose, 2.5 g/L of FeSO4·7H2O during 24 h and it reached 85.5% at 120 min in EF at the optimum values (pH 3, H2O2 dose = 43.5 g/L and 0.58 A of the current). When the cost of treatment by the CF method was found as 78.206 €/m3, it was 78.046 €/m3 by the EF process. For the first time in the literature, a comparative study of EF and CF in treatment of the PVA-containing wastewater was presented and high treatment efficiency was achieved. In this study, pH change in the EF process and its negative effects on the treatment efficiency were observed. Determining the need for constant pH adjustment to eliminate these negative effects is one of the most important outputs of this study. In addition, higher treatment efficiencies by EF have been obtained compared to CF.

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来源期刊
Journal of Water Chemistry and Technology
Journal of Water Chemistry and Technology CHEMISTRY, APPLIED-CHEMISTRY, ANALYTICAL
自引率
0.00%
发文量
51
审稿时长
>12 weeks
期刊介绍: Journal of Water Chemistry and Technology focuses on water and wastewater treatment, water pollution monitoring, water purification, and similar topics. The journal publishes original scientific theoretical and experimental articles in the following sections: new developments in the science of water; theoretical principles of water treatment and technology; physical chemistry of water treatment processes; analytical water chemistry; analysis of natural and waste waters; water treatment technology and demineralization of water; biological methods of water treatment; and also solicited critical reviews summarizing the latest findings. The journal welcomes manuscripts from all countries in the English or Ukrainian language. All manuscripts are peer-reviewed.
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