In situ Fenton remediation for diesel contaminated clayey zone assisted by thermal plasma blasting: Synergism and cost estimation

Wong, Kien Tiek; Jang, Seok Byum; Choong, Choe Earn; Kang, Cha-won; Lee, Geun Chun; Song, Jae Yong; Yoon, Yeomin; Jang, Min

doi:10.1016/j.chemosphere.2021.131574

Cited by 10 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first report on the Fenton reaction dates from 1876, where a mixture of H 2 O 2 and Fe 2+ salt (Fenton reagent) was used to achieve the oxidation of tartaric acid [31]; from there, various investigations have been carried out to apply this reaction in multiple applications. It is currently mainly used in environmental remediation [32][33][34][35][36].…”

Section: Fenton Reactionmentioning

confidence: 99%

From Fenton and ORR 2e−-Type Catalysts to Bifunctional Electrodes for Environmental Remediation Using the Electro-Fenton Process

et al. 2023

View full text Add to dashboard Cite

Currently, the presence of emerging contaminants in water sources has raised concerns worldwide due to low rates of mineralization, and in some cases, zero levels of degradation through conventional treatment methods. For these reasons, researchers in the field are focused on the use of advanced oxidation processes (AOPs) as a powerful tool for the degradation of persistent pollutants. These AOPs are based mainly on the in-situ production of hydroxyl radicals (OH•) generated from an oxidizing agent (H2O2 or O2) in the presence of a catalyst. Among the most studied AOPs, the Fenton reaction stands out due to its operational simplicity and good levels of degradation for a wide range of emerging contaminants. However, it has some limitations such as the storage and handling of H2O2. Therefore, the use of the electro-Fenton (EF) process has been proposed in which H2O2 is generated in situ by the action of the oxygen reduction reaction (ORR). However, it is important to mention that the ORR is given by two routes, by two or four electrons, which results in the products of H2O2 and H2O, respectively. For this reason, current efforts seek to increase the selectivity of ORR catalysts toward the 2e− route and thus improve the performance of the EF process. This work reviews catalysts for the Fenton reaction, ORR 2e− catalysts, and presents a short review of some proposed catalysts with bifunctional activity for ORR 2e− and Fenton processes. Finally, the most important factors for electro-Fenton dual catalysts to obtain high catalytic activity in both Fenton and ORR 2e− processes are summarized.

show abstract

Section: Fenton Reactionmentioning

confidence: 99%

From Fenton and ORR 2e−-Type Catalysts to Bifunctional Electrodes for Environmental Remediation Using the Electro-Fenton Process

et al. 2023

View full text Add to dashboard Cite

show abstract

“…This biological transformation offers a cost-effective, eco-friendly alternative to physical and chemical remediation techniques. Lately, clayey soils contaminated with organic pollutants are a critical environmental concern following their high reluctance to conventional bioremediation techniques (Wong et al, 2022). The large surface area and presence of nano and micro-pores in clayey soils result in poor availability of pollutants, nutrients, and oxygen, thus limiting the extent and rate of pollutant biodegradation (Akbari & Ghoshal, 2014).…”

Section: Introductionmentioning

confidence: 99%

Asynchronous application of modified biochar and exogenous fungus Scedosporium sp. ZYY for enhanced degradation of oil-contaminated intertidal mudflat sediment

Atakpa,

Yan,

Okon

et al. 2024

Environ Sci Pollut Res

View full text Add to dashboard Cite

Bioremediation strategies for oil-contaminated clayey sediment are still a major environmental concern due to their reluctance to conventional treatment techniques. The main objective of this study was to evaluate the sequential application of modi ed biochar and exogenous fungus in slurry phase degradation of crude oil-contaminated clayey sediment. Biochar modi cation using acid and rhamnolipid increased its surface area from 2.544 to 25.378 m 2 g -1 , followed by a corresponding increase in the hydrogen-carbon and oxygen-carbon ratio, indicating improved stability, polarity, and oxygen contents. The maximum TPH removal e ciency of 82.4% was achieved in treatments with the acid-rhamnolipidtreated biochar, followed by a corresponding increase in FDA hydrolysis activity. Furthermore, highthroughput 16S RNA gene sequencing was employed to identify changes in the bacterial community structures of the original sediment and treatments before and after fungal inoculation. This highlighted Proteobacteria as the dominant phylum, followed by Campilobacterota, Bacteroidota, Actinobacteriota, and Desulfobacterota. In addition, it was observed that fungal inoculation promoted the proliferation of some speci c TPH-degraders. Speci cally, ASVs associated with Hyphomonas adhaerens and Marinobacter mobilis accounted for 77% and 5% of the total degrading populations in treatments where TPH removal was highest. Findings in this study provide valuable insights into the effect of biochar in the treatment of crude oil-contaminated marine sediments, and a better understanding of the fundamental role of exogenous fungus in the proliferation of e cient TPH-degraders towards effective degradation. HighlightsAcid-treated biochar accelerated degradation rate within the rst 21 days Taxonomic groups originally present in low abundance improved predominantly after fungal addition.Fungi promoted the abundance of pollutant-degrading bacterial species while impeding the abundance of non-degraders.Overall degradation process impeded bacterial diversity.

show abstract

Enhanced delivery of amendments in fractured clay sites based on multi-point injection: An analytical study

et al. 2022

View full text Add to dashboard Cite

In situ Fenton remediation for diesel contaminated clayey zone assisted by thermal plasma blasting: Synergism and cost estimation

Cited by 10 publications

References 17 publications

From Fenton and ORR 2e−-Type Catalysts to Bifunctional Electrodes for Environmental Remediation Using the Electro-Fenton Process

From Fenton and ORR 2e−-Type Catalysts to Bifunctional Electrodes for Environmental Remediation Using the Electro-Fenton Process

Asynchronous application of modified biochar and exogenous fungus Scedosporium sp. ZYY for enhanced degradation of oil-contaminated intertidal mudflat sediment

Enhanced delivery of amendments in fractured clay sites based on multi-point injection: An analytical study

Contact Info

Product

Resources

About