Effects of reducing agent and approaching anodes on chromium removal in electrokinetic soil remediation

Wei, Xiao-Na; Guo, Shuhai; Wu, Bo; Li, Fengmei; Li, Gang

doi:10.1007/s11783-015-0791-0

Cited by 27 publications

(11 citation statements)

References 27 publications

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“…Initially there was an increase of electric current due to release of dissolved ions from the pore water under electrokinetics. As time passed by, the ions from the pore water were depleted due to migration and precipitation [28]. Thus, the electric current decreased over time under constant polarity EK.…”

Section: Electrical Currentmentioning

confidence: 99%

Effect of polarity-reversal on electrokinetic enhanced bioremediation of Pyrene contaminated soil

Li¹,

Wang²,

Guo

et al. 2016

Electrochimica Acta

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Section: Electrical Currentmentioning

confidence: 99%

Effect of polarity-reversal on electrokinetic enhanced bioremediation of Pyrene contaminated soil

Li¹,

Wang²,

Guo

et al. 2016

Electrochimica Acta

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“…In consequence, remediating of soil can be done very quickly and approximately 44% of the energy and 40% of time can be saved. Wei et al (2016) carried out EK experiment to compare the influence of fixed electrodes and approaching anodes (AAs) with and without using reducing agent, which is sodium bisulfite (NaHSO 3 ). When NaHSO 3 was added to the soil before EK, treatment decreased Cr (VI) to Cr (III) by 90.3%.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of the Approaching Electrode On the Migration for Metal Ions through the Electro-Kinetic Technique for Contaminated Soil

Jawad¹,

Khalil²

2023

J. Ecol. Eng.

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In this study, three experiments using the fixed anode technique and approached anode technique were carried out. The first experiment (EK-1) used distilled water as leaching solution (purging solution) at the anode and cathode chamber under voltage gradient was equal to 1.5 V/cm. In the second and third experiments, a solution enhanced with 1M acetic acid (AA) was used as catholic solution. The results indicate that residual concentration of Zn +2 decreases, beginning with an initial value of 850 mg/kg in all portions of soil sample EK-1, EK-2, in addition to EK-3. It seems that the residual concentration of EK-3 (approached anode technique) was lower than that of EK-1 and EK-2 in identical portions.

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“…Biomass amendment, with certain absorbability, can inactivate heavy metal ions in the soil, and improve the water and fertilizer retention in the soil to a certain extent [17][18][19]. Dias-Ferreira et al [20] improved the water content, available phosphorus, alkali hydrolyzable nitrogen, and organic matter eroded and degraded farmland soil, which effectively alleviates the crop failure induced by soil erosion and degradation.…”

Section: Introductionmentioning

confidence: 99%

Remediation Effect of Biomass Amendment on the Physical-Chemical Performance and Sustainable Utilization of Sandy Soil

Ren¹,

Li²,

Hui³

et al. 2021

ACSM

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Soil desertification affects the service functions of the ecosystem. In severe cases, it even causes a decline in agricultural productivity and shrinkage of animal husbandry, posing a threat to regional eco-environment and economic sustainability. The previous research on soil remediation research mainly concentrates on heavy metal degradation, saline soil improvement, and eroded and degraded soil improvement. There is little report on the biomass improvement and restoration of sandy soil. Therefore, this paper explores the remediation effect of biomass amendment on the physical-chemical performance and sustainable utilization of sandy soil in Huangyangtan, the largest sandy land in northern China’s Hebei Province. Specifically, the authors detailed the strategies to measure the physical-chemical indices and microbial diversity of Huangyangtan sandy soil, and introduced the materials and mode of the biomass amendment test on Huangyangtan sandy soil, followed by an elaboration on the test results. The influence of different test fertilizers on the soil was analyzed in four dimensions, namely, physical performance, chemical performance, biological performance, and crop yield. The results show that biomass amendment can effectively remediate sandy soil, and promote its sustainable utilization.

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Effects of reducing agent and approaching anodes on chromium removal in electrokinetic soil remediation

Cited by 27 publications

References 27 publications

Effect of polarity-reversal on electrokinetic enhanced bioremediation of Pyrene contaminated soil

Effect of polarity-reversal on electrokinetic enhanced bioremediation of Pyrene contaminated soil

Evaluating the Effect of the Approaching Electrode On the Migration for Metal Ions through the Electro-Kinetic Technique for Contaminated Soil

Remediation Effect of Biomass Amendment on the Physical-Chemical Performance and Sustainable Utilization of Sandy Soil

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