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首页> 外文期刊>Archives of Agronomy and Soil Science >Electrodialytic remediation of fluorine contaminated soil using 2-electrolysis compartment
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Electrodialytic remediation of fluorine contaminated soil using 2-electrolysis compartment

机译：使用2个电解隔室电渗纱防治氟污染土壤

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Fluorine pollutants, emitted from numerous anthropogenic actions, can enter the surrounding environment and lead to soil pollution by fluorine. The aim of this study is to evaluate the remediation possibility and efficiency of fluorine contaminated soil by EDR (electrodialytic remediation) with the 2-electrolysis compartment, compared to EDR with 3-electrolysis compartment. Four runs of EDR experiments were carried out using the 3-compartment (run A, run C) and 2-compartment electrolysis bath (run B, run D). Important electrodialytic parameters such as electric current, electroosmotic flow, the removal efficiency and energy consumption were investigated. The results showed that the removal efficiency of fluorine in run A, B, C and D was 61.6%, 80.5%, 49.1% and 58.8%, respectively. And 2-electrolysis compartment positively affected the fluorine removal because of higher electric current and soil pH, which led to more desorption of F ions from the contaminated soil and more electro-migration of F ions into the electrolyte, but 2-electrolysis compartment consumed more energy (run A: 0.13 kwh kg(-1), run B: 0.24 kwh kg(-1), run C: 0.08 kwh kg(-1) and run D: 0.12 kwh kg(-1)). After EDR, fluorine of contaminated soil was mainly bound to stable and low toxic RESF (the residual fraction of fluorine).
机译：氟污染物从许多人为动作中排出，可以进入周围环境并导致氟的土壤污染。该研究的目的是评估EDR（电催化修复）与带有3个电解室的EDR（电催化修复）对氟污染土壤的修复可能性和效率。使用3个隔室（运行C）和2室电解浴（运行B，运行D）进行四次EDR实验。研究了电流，电渗流，去除效率和能耗等重要的电渗量参数。结果表明，运行A，B，C和D中氟的去除效率分别为61.6％，80.5％，49.1％和58.8％。和2个电解室因较高的电流和土壤pH阳性去除氟去除，这导致了从污染的土壤中的F离子更加解吸，以及将F离子的更电迁移到电解质中，但2个电解室消耗更多能量（RUN A：0.13千瓦时kg（-1），运行B：0.24 kWh kg（-1），运行C：0.08 kWh kg（-1），运行d：0.12 kwh kg（-1））。 EDR后，含氟污染的土壤主要与稳定且低毒性的RESF（氟的残留级分）。

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