Fenton based remediation of polycyclic aromatic hydrocarbons-contaminated soils

Yap, Chiew Lin; Gan, Suyin; Ng, Hoon Kiat

doi:10.1016/j.chemosphere.2011.01.026

Cited by 204 publications

(92 citation statements)

References 99 publications

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“…많은 연구는 유기오염물질의 분해 를 목적으로 수행되었으며, 반응속도 및 메커니즘에 관한 논문이 다수 발표되었다 (Baciocchi et al, 2004, Kwan and Voelker, 2003, Yap et al, 2011, Watts et al, 2005. (Kakaria and Watts, 1997, Vicente et al, 2011, Watts et al, 2005, Watts et al, 2007 참 고 문 헌…”

Section: 서 론unclassified

Stabilization of Hydrogen Peroxide using Malonic Acid in Fenton and Fenton-like reactions

Kim¹,

Kim³

2013

Journal of Soil and Groundwater Environment

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Hydrogen peroxide takes much of the cost for Fenton reaction applied for treatment of organic contaminants. Therefore, the effective use of hydrogen peroxide makes the technology more cost effective. The effective use of hydrogen peroxide is especially needed in the soil and groundwater remediation where complete mixing is not possible and it takes a long time for reactive species to transport to the fixed target compounds. Stabilization ability for hydrogen peroxide of malonic acid was evaluated in Fenton and Fenton-like reactions in this study. Malonic acid contributes on the stabilization of hydrogen peroxide by weak interaction between iron and the stabilizer and inhibiting the catalytic role of iron. The stabilization effect increased as the solution pH decrease below the pK a1 . The stabilization effect increased as the concentration of malonic acid increased and the effect was maximized at the malonic acid concentration of about ten times higher than the iron concentration. The model organic contaminant was successfully oxidized in the presence of the stabilizer but the degradation rate was slower than the system without the stabilizer. The stabilization effect was also proved in a Fenton-like reaction where magnetite and hematite were used instead of soluble iron species.

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Section: 서 론unclassified

Stabilization of Hydrogen Peroxide using Malonic Acid in Fenton and Fenton-like reactions

Kim¹,

Kim³

2013

Journal of Soil and Groundwater Environment

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“…The release of Fe minerals followed by an enhanced release of DOC can thus be important factors in the PAH leaching under strong acidic conditions. The leaching and degradation of PAHs in soils from contaminated sites may be improved by addition of a strong oxidant to achieve a Fenton-like oxidation [41], electrochemical degradation [42] or by a combination of the two techniques [43]. The addition of a strong oxidant could also affect the Cu leachability, which is something that should be studied further if this technique is used to remove PAHs.…”

Section: Figurementioning

confidence: 99%

Copper Recovery from Polluted Soils Using Acidic Washing and Bioelectrochemical Systems

Fedje

Modin

Strömvall

2015

Metals

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Abstract:Excavation followed by landfilling is the most common method for treating soils contaminated by metals. However, as this solution is not sustainable, alternative techniques are required. Chemical soil washing is one such alternative. The aim of this experimental lab-scale study is to develop a remediation and metal recovery method for Cu contaminated sites. The method is based on the washing of soil or ash (combusted soil/bark) with acidic waste liquids followed by electrolytic Cu recovery by means of bioelectrochemical systems (BES). The results demonstrate that a one-or two-step acidic leaching process followed by water washing removes >80 wt. % of the Cu. Copper with 99.7-99.9 wt. % purity was recovered from the acidic leachates using BES. In all experiments, electrical power was generated during the reduction of Cu. This clearly indicates that Cu can also be recovered from dilute solutions. Additionally, the method has the potential to wash co-pollutants such as polycyclic aromatic hydrocarbons (PAHs) and oxy-PAHs.

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“…The generated ·OH radicals can aggressively react with virtually all organic compounds (Munter, 2001). However, there are many limitations in applying sole Fenton oxidation to remediate soils polluted with PAHs (Gan et al, 2013;Martens & Frankenberger, 1995;Rosas et al, 2013;Saxe et al, 2000;Yap et al, 2011). A major challenge in Fenton treatment of PAHs-contaminated soils is the limited mass transfer of PAHs from the sorbed phase into the aqueous phase due to their strong sorption and low aqueous solubility (Yap et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Over the last two decades, Fenton treatment has emerged as a promising remediation technology for PAHs-polluted soils (Gan, Lau, & Ng, 2009;Gan et al, 2013;Martens & Frankenberger, 1995;Rosas, Vicente, Santos, & Romero, 2013;Saxe, Allen, & Nicol, 2000;Venny, Gan, & Ng, 2012;Yap, Gan, & Ng, 2011). Fenton oxidation processes are environmentally clean technologies which depend on the formation of reactive and non-selective hydroxyl (·OH) radicals for oxidation (Diyáuddeen, Aziz, & Daud, 2012).…”

Section: Introductionmentioning

confidence: 99%

Application of surfactant Tween 80 to enhance Fenton oxidation of polycyclic aromatic hydrocarbons (PAHs) in soil pre-treated with Fenton reagents

Yang

Song

2017

Geology, Ecology, and Landscapes

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Successive Fenton oxidation (up to three times) was conducted to enhance the removal efficiency of nine USEPA priority PAHs in aged soil highly contaminated with PAHs. Results showed that PAHs concentrations decreased rapidly and the removal efficiency was relatively high during one-time Fenton oxidation. However, PAHs in soil exhibited a slow removal trend and decreased at an extremely slow rate during two-and three-times Fenton oxidation. Surfactant Tween 80 was used to increase the amount of PAHs available for hydroxyl radical (·OH) and enhance Fenton oxidation efficiency of PAHs in aged soil pre-treated with Fenton reagents in this study.

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Fenton based remediation of polycyclic aromatic hydrocarbons-contaminated soils

Cited by 204 publications

References 99 publications

Stabilization of Hydrogen Peroxide using Malonic Acid in Fenton and Fenton-like reactions

Stabilization of Hydrogen Peroxide using Malonic Acid in Fenton and Fenton-like reactions

Copper Recovery from Polluted Soils Using Acidic Washing and Bioelectrochemical Systems

Application of surfactant Tween 80 to enhance Fenton oxidation of polycyclic aromatic hydrocarbons (PAHs) in soil pre-treated with Fenton reagents

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