期刊
ELECTROCHIMICA ACTA
卷 190, 期 -, 页码 371-377出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.12.134
关键词
Solar energy; soil remediation; herbicide; photovoltaic; electrokinetic soil remediation
资金
- EU
- Spanish Government through the MINECO Project [CTM2013-45612-R]
- Spanish Government through FEDER [PP201010]
- Spanish Government through INNOCAMPUS
- Brazilian government through Sao Paulo Research Foundation (FAPESP) [2014/02580-7]
In this work, the removal of a model pesticide (2,4-Dichlorophenoxyacetic acid, 2,4-D) using Electrokinetic Soil Flushing (EKSF) powered directly by DC current or by solar panels during a 15 days long treatment has been studied. Results show changes in operating conditions during the solar test, which can be clearly related to the day-night cycle, with a maximum solar irradiation intensity of 513 W m (2) at noon and an average daily charge supplied of 6.2 Ah d (1). The fluctuations in the intensity supplied to the electrochemical system lead to softer pH and conductivity profiles between anodic and cathodic wells in the case of photovoltaic (PV) powered system. After the 15 days long tests, the removal of 2,4-D reaches 90.2% and 73.6% in the electroremediation powered with DC power supply and solar panels, respectively. In this period,the total applied charge passed is 4.3 and 24.3 Ah kg (1) in both system, respectively. This means that the PV-powered electroremediation results in a much less efficient system, in which a much higher amount of charge is required to reach the same removal of pollutants in the soil. This fact may be related to the significantly lower EO flux observed during the operation of the PV powered system. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据