Remediation of soil contaminated by lindane wastes using alkaline activated persulfate: Kinetic model

García-Cervilla, Raúl; Santos, Aurora; Salvador, Alfredo; Lorenzo, David

doi:10.1016/j.cej.2020.124646

Cited by 60 publications

(20 citation statements)

References 41 publications

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“…The main results obtained in this work are shown in Figure 13 [46]. The molar ratio NaOH/PS ratio was 2:1, the mass ratio water/soil was 10:1, and the concentration of PS varied between 25 and 100 g/L.…”

Section: Oxidation With Activated Persulfate Fenton Reagent and Permanganatementioning

confidence: 73%

“…( 7)), being the reason for the cause of the lower HCH conversion obtained with this treatment. García-Cervilla et al have recently studied the remediation of a soil located at 14 m below the ground level in an alluvial of an old landfill contaminated with liquid wastes of lindane production [46] at Sabiñanigo (Spain). A high carbonate concentration was also found in this soil (>45%), and the alkaline activation of PS was selected as a remediation technology.…”

Section: Oxidation With Activated Persulfate Fenton Reagent and Permanganatementioning

confidence: 99%

See 1 more Smart Citation

HCH-Contaminated Soils and Remediation Technologies

López¹,

Torre²,

Fernández³

2021

Soil Contamination - Threats and Sustainable Solutions

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The production of lindane (gamma isomer of hexachlorocyclohexane, γ-HCH) in the second half of the twentieth century was an inefficient process that generated vast amounts of residues of other HCH isomers, without any pesticide activity. These residues were often dumped in an uncontrolled way or unsecured landfills in points near the production sites, causing hot spots of soil and groundwater contamination on all continents. Given the persistence and hydrophobicity of these pollutants, the problem generated decades ago is still a challenge to be solved. Several technologies, based on physical, chemical, and biological treatments, have been proposed for the remediation of HCH-contaminated soils. This chapter reviews the particularities of this kind of contamination and critically examines the bases and results of the technologies applied, paying special attention to the physicochemical remediation processes.

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Section: Oxidation With Activated Persulfate Fenton Reagent and Permanganatementioning

confidence: 73%

Section: Oxidation With Activated Persulfate Fenton Reagent and Permanganatementioning

confidence: 99%

HCH-Contaminated Soils and Remediation Technologies

López¹,

Torre²,

Fernández³

2021

Soil Contamination - Threats and Sustainable Solutions

View full text Add to dashboard Cite

show abstract

“…•− . However, the alkaline activation of PS using NaOH was verified for the removal of a complex compound of chlorinated PAHs by García-Cervilla et al [64] and Lominchar et al [65].…”

Section: Sulfate Radical Processmentioning

confidence: 99%

Recent Developments in Advanced Oxidation Processes for Organics-Polluted Soil Reclamation

et al. 2022

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Soil pollution has become a substantial environmental problem which is amplified by overpopulation in different regions. In this review, the state of the art regarding the use of Advanced Oxidation Processes (AOPs) for soil remediation is presented. This review aims to provide an outline of recent technologies developed for the decontamination of polluted soils by using AOPs. Depending on the decontamination process, these techniques have been presented in three categories: the Fenton process, sulfate radicals process, and coupled processes. The review presents the achievements of, and includes some reflections on, the status of these emerging technologies, the mechanisms, and influential factors. At the present, more investigation and development actions are still desirable to bring them to real full-scale implementation.

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“…Fortunately, several means exist to remove HCH, among which chemical degradation is especially suitable for low to medium range contaminant concentrations [12,[43][44][45]. In situ dechlorination via chemical reduction is often suitable for the degradation of COCs in the underground, because of the low concentrations of oxidizing molecules.…”

Section: Introductionmentioning

confidence: 99%