期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 156, 期 -, 页码 234-241出版社
ELSEVIER
DOI: 10.1016/j.seppur.2015.10.006
关键词
2,4-D; Herbicide; Electroremediation; Natural soil; Fence; Pilot plant
资金
- EU
- Spanish Government through the MINECO Project [CTM2013-45612-R]
- INNOCAMPUS
Soils polluted with 2,4-D (model of ionic herbicide) can be remediated using a fence of alternating anodes and cathodes surrounding the main contamination point. This works reports results obtained in case study consisting of a 175 dm(3) pilot plant, in which a soil polluted with an average concentration of 20 mg kg(-1) of 2,4-D (spread by simulating an accidental spill) undergoes electroremediation for two months with an electric field of 1.0 VDC cm(-1) (between consecutive electrodes). Intensity, temperature, pH, moisture and pollutant concentration in electrolyte wells were daily monitored, and at the end of the experiments, an in-depth post-mortem analysis was carried out. In less than two months, the remediation technology attains a transport of more than 22% of the 2,4-D contained in the soil to the flushing fluids. However, the main mechanism for the removal of 2,4-D was found to be volatilization (which totalizes up to 57% of removal of 2,4-D). The significance of this mechanism was confirmed with the comparison of the results obtained in the remediation test with the results obtained in a reference test consisting of the monitoring of the dispersion of the 2,4-D pollutant in a soil which does no undergo electroremediation treatment. These results are of a great importance for future scaling-up of the technology. (C) 2015 Elsevier B.V. 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