通过化学氧化和植物修复联合 DCT 修复有机化合物污染土壤。
Remediation of Soil Polluted by Organic Compounds Through Chemical Oxidation and Phytoremediation Combined with DCT.
机构信息
Department of Theoretical and Applied Sciences, Insubria University of Varese, Via G.B. Vico 46, 21100 Varese, Italy.
Department of Civil, Environmental and Mechanical Engineering, University of Trento, via Mesiano 77, 38123 Trento, Italy.
出版信息
Int J Environ Res Public Health. 2019 Aug 31;16(17):3179. doi: 10.3390/ijerph16173179.
Soils contaminated with organic substances is an important issue across Europe: In some areas, these are the main causes of pollution, or the second after contamination from waste disposal. This paper included an experimental application that compared three methods of remediation of contaminated sites, based on electric fields: A single treatment (electroremediation); and two combined treatments, phyto-electrochemical and electrooxidation (a combination of chemical treatment and a DCT-direct current technology). The contaminated soil was taken from a former industrial area devoted to oil refining, located between two roads: The one national and the other one for industrial use. Nine soil samples were collected at two depths (0.2 and 0.4 m). The initial characterization of the soil showed a density of 1.5 g/cm³ and a moisture of about 20%; regarding grain size, 50% of the soil had particles with a diameter less than 0.08 mm. The electrochemical treatment and electrooxidation had an efficiency of 20% while the two combined methods had efficiencies of 42.5% for electrooxidation (with HO) and 20% for phyto-electroremediation (phyto-ER) with poinsettias.
受有机物污染的土壤是欧洲的一个重要问题
在一些地区，这些是污染的主要原因，或者是废物处理污染后的第二大原因。本文包含了一项实验应用，比较了基于电场的三种污染场地修复方法：单一处理（电修复）；以及两种联合处理，植物电化学和电氧化（化学处理与直流技术的结合）。受污染的土壤取自一个前炼油工业地区，位于两条道路之间：一条是国道，另一条是工业道路。在两个深度（0.2 和 0.4 米）采集了 9 个土壤样本。土壤的初始特征表明密度为 1.5 g/cm³，含水量约为 20%；关于粒度，土壤中有 50%的颗粒直径小于 0.08 毫米。电化学处理和电氧化的效率为 20%，而两种联合方法的电氧化效率为 42.5%（使用 HO），而电修复的效率为 20%（使用一品红）。
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