Kinetic study of mineral oil removal from wastewater by the sono-electrochemical process.

IF 2.5 4区环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL

Water Science and Technology Pub Date : 2024-11-01 Epub Date: 2024-11-11 DOI:10.2166/wst.2024.370

Hana Posavcic, Katarina Licht, Ivan Halkijevic, Domagoj Nakic

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引用次数: 0

Abstract

Chemical kinetics can be a useful tool for determining the optimal operating time of electrochemical processes. The main objective of the study was to determine the mineral oil removal rate by sono-electrochemical treatment. In this study, zero-, first-, and second-order kinetic models were used to determine the reaction rate of mineral oil removal with the sono-electrochemical process. The reaction rate experiments were conducted under the following optimal conditions: 8 min of treatment time, a current density of 53.1 A/m², and a flow rate of 0.23 L/s. It was found that the changes in mineral oil concentrations follow second-order kinetics with a coefficient of determination of 0.9732. The mineral oil removal efficiency was 94.4%. This study concludes that sono-electrochemical process could be a promising technology for the removal of mineral oil from wastewater, and that the mineral oil removal rate can be determined by chemical kinetics. The results obtained may be useful for the optimization of the sono-EC process and reactor design.

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超声电化学法去除废水中矿物油的动力学研究。

化学动力学是确定电化学过程最佳操作时间的有用工具。研究的主要目的是确定超声电化学处理对矿物油的去除率。本研究采用零、一、二级动力学模型确定了超声电化学过程中矿物油去除的反应速率。反应速率实验在处理时间8 min、电流密度53.1 a /m2、流速0.23 L/s的最佳条件下进行。结果表明，矿物油浓度的变化符合二级动力学，决定系数为0.9732。矿物油去除率为94.4%。研究结果表明，超声电化学技术是一种很有前途的去除废水中矿物油的技术，并且矿物油的去除率可以通过化学动力学来确定。所得结果可为超声- ec工艺的优化和反应器的设计提供参考。

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来源期刊

Water Science and Technology 环境科学-工程：环境

CiteScore

4.90

自引率

3.70%

发文量

366

审稿时长

4.4 months

期刊介绍： Water Science and Technology publishes peer-reviewed papers on all aspects of the science and technology of water and wastewater. Papers are selected by a rigorous peer review procedure with the aim of rapid and wide dissemination of research results, development and application of new techniques, and related managerial and policy issues. Scientists, engineers, consultants, managers and policy-makers will find this journal essential as a permanent record of progress of research activities and their practical applications.