Effect of Fenton pre-oxidation on mobilization of nutrients and efficient subsequent bioremediation of crude oil-contaminated soil

Xu, Jinlan; Kong, Fanxing; Song, Shaohua; Cao, Qianqian; Huang, Tinglin; Cui, Yiwei

doi:10.1016/j.chemosphere.2017.03.087

Cited by 48 publications

(24 citation statements)

References 41 publications

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“…On the other hand, negligible degradation (< 5%) was observed when both oxidants were applied alone or with soluble Fe(II) (data not shown). Xu et al (2017) also reported a comparable oxidation efficiency by H 2 O 2 in the presence or 243 absence of Fe(II) at circumneutral pH (6.5 -7) in loamy soil highlighting the inability of Fe(II) to act as a catalyst. They observed that use of H 2 O 2 (225, 450 and 900 mM) with soluble Fe(II) (2.9 mM) resulted in total petroleum hydrocarbon removal of 2, 15, and 25%, 246 respectively whereas a comparable oxidation efficiency was noted by H 2 O 2 without Fe(II) of 247 1, 17, and 22%, respectively (Xu et al, 2017).…”

Section: Chemical Oxidation Of Contaminated Sedimentsmentioning

confidence: 87%

“…Xu et al (2017) also reported a comparable oxidation efficiency by H 2 O 2 in the presence or 243 absence of Fe(II) at circumneutral pH (6.5 -7) in loamy soil highlighting the inability of Fe(II) to act as a catalyst. They observed that use of H 2 O 2 (225, 450 and 900 mM) with soluble Fe(II) (2.9 mM) resulted in total petroleum hydrocarbon removal of 2, 15, and 25%, 246 respectively whereas a comparable oxidation efficiency was noted by H 2 O 2 without Fe(II) of 247 1, 17, and 22%, respectively (Xu et al, 2017). It should, however, be noted that total concentration of native Fe(II) in their soil was 4.8 g kg -1 which could explain the reported oxidation efficiency without any added Fe(II) by Xu et al (2017).…”

Section: Chemical Oxidation Of Contaminated Sedimentsmentioning

confidence: 87%

“…They observed that use of H 2 O 2 (225, 450 and 900 mM) with soluble Fe(II) (2.9 mM) resulted in total petroleum hydrocarbon removal of 2, 15, and 25%, 246 respectively whereas a comparable oxidation efficiency was noted by H 2 O 2 without Fe(II) of 247 1, 17, and 22%, respectively (Xu et al, 2017). It should, however, be noted that total concentration of native Fe(II) in their soil was 4.8 g kg -1 which could explain the reported oxidation efficiency without any added Fe(II) by Xu et al (2017). Native Fe in contaminated soils has been found to catalyze Fenton-like oxidation with no Fe addition for the removal of PAHs in contaminated soils with 57.5 g kg -1 endogenous Fe oxides (amorphous + crystalline) (Watts et al, 2002).…”

Section: Chemical Oxidation Of Contaminated Sedimentsmentioning

confidence: 99%

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Remediation of oil-contaminated harbor sediments by chemical oxidation

Usman

Hanna

Faure

2018

Science of The Total Environment

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Oil hydrocarbons are widespread pollutants in sub-surface sediments with serious threats to terrestrial and aquatic environment. However, very limited data is available about remediation of historically contaminated sediments. This study reports the use of magnetite-catalyzed chemical oxidation (HO and NaSO) to degrade oil hydrocarbons in aged contaminated sediments. For this purpose, oil contaminated sediments were sampled from three different locations in France including two harbors and one petroleum industrial channel. These sediments were characterized by different hydrocarbon index (HI) values (3.7-9.0gkg), total organic carbon contents (1.9%-8.4%) and textures (sand, slit loam and silt). Chemical oxidation was performed in batch system for one week at circumneutral pH by: HO alone, HO/Fe(II), HO/magnetite, NaSO alone, NaSO/Fe(II), and NaSO/magnetite. Results obtained by GC-FID indicated substantial hydrocarbon degradation (40-70%) by HO/magnetite and NaSO/magnetite. However, oxidants alone or with soluble Fe(II) caused small degradation (<5%). In the presence of HO/magnetite, degradation of extractable organic matter and that of HI were highly correlated. However, no such correlation was observed for NaSO/magnetite which resulted in higher removal of HI indicating its selective oxidation behavior. Treatment efficiency was negatively influenced by organic carbon and carbonate contents. For being the first study to report chemical oxidation of oil hydrocarbons in real contaminated sediments, it may have practical implications to design a remediation strategy for target contaminants.

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Section: Chemical Oxidation Of Contaminated Sedimentsmentioning

confidence: 87%

Section: Chemical Oxidation Of Contaminated Sedimentsmentioning

confidence: 87%

Section: Chemical Oxidation Of Contaminated Sedimentsmentioning

confidence: 99%

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Remediation of oil-contaminated harbor sediments by chemical oxidation

Usman

Hanna

Faure

2018

Science of The Total Environment

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“…Until now, different physicochemical, thermal, and biological methods have been applied for decontamination of polluted soils. However, these methods are often costly and energy-intensive, and are almost ineffective and could, in turn, remain secondary toxic materials, which are potentially harmful to the environment [8][9][10][11] . Thus, electrochemical removal has been considered as a reliable technology for the remediation of contaminated soils 12,13 .…”

Section: Introductionmentioning

confidence: 99%

A Novel Combination of Surfactant Addition and Persulfate-assisted Electrokinetic Oxidation for Remediation of Pyrene-Contaminated Soil

Abtahi

Jorfi

Mehrabi

et al. 2018

Chem.Biochem.Eng.Q.

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Effect of surfactant addition on persulfate-assisted electrokinetic remediation of pyrene-spiked soil was studied. The influence of effective factors including voltage, surfactant addition, moisture content, and persulfate concentration on the removal of initial pyrene concentration of 200 mg kg-1 were investigated. A complete pyrene removal was observed for voltage of 1 V cm-1 , saturated conditions, Tween 80 concentration of 20 mL kg-1 , and persulfate concentration of 100 mg kg-1 after 24 h, corresponding to pyrene mineralization of 61 %, based on TPH analysis. The experimental results were best fitted with pseudo-first-order kinetic model with correlation coefficient of 0.968 and rate constant of 0.191 min −1. The main intermediates of pyrene degradation were benzene o-toluic acid, acetic, azulene, naphthalene and decanoic acid. Finally, an unwashed hydrocarbon-contaminated soil was subjected to persulfate-assisted electrokinetic remediation, and a TPH removal of 38 % was observed for the initial TPH content of 912 mg kg-1 , under the selected conditions.

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“…However, high concentration of oxidants can cause serious damage to indigenous hydrocarbon degraders (IHD), making their recovery during bioremediation difficult, resulting in poor subsequent sustainable biodegradation of TPH . Previous studies by the present authors reported that the population of residual IHD decreased by three orders of magnitude (from 2.5 × 10 8 cfu g −1 soil to 7.9 × 10 5 cfu g −1 soil), after increasing the concentration of H 2 O 2 from 225 to 900 mmol L −1 , and the biodegradation of TPH after Fenton pre‐oxidation with 900 mmol L −1 H 2 O 2 was only 60% of that after Fenton pre‐oxidation with 225 mmol L −1 H 2 O 2 . However, a lower concentration of ammonium‐nitrogen (NH 4 + ‐N) was produced only with the lower concentration of oxidants, which was not beneficial to subsequent sustainable bioremediation .…”

Section: Introductionmentioning

confidence: 66%

Efficient sustainable bioremediation of long‐chain crude oil in soils using instant Fenton pre‐oxidation

Lü

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND: Many studies have reported that most Fenton pre-oxidation steps either do more damage to the indigenous hydrocarbon degraders (IHD) or produce lower concentrations of ammonium-nitrogen (NH 4 + -N) during Fenton oxidation combined with bioremediation for oil-contaminated soils, which causes the subsequent bioremediation to be unsustainable and poor. The aim of the present study was to find an instant Fenton pre-oxidation for the efficient sustainable biodegradation of long-chain alkanes, and to determine the ratio (K) of residual concentration of NH 4 + -N to residual population of IHD that can reach a balance after this instant Fenton pre-oxidation. RESULTS: FiveFenton oxidation experiments were carried out with iron bound to soil organic matter (SOM). On this basis, a 75-day field experiment of instant Fenton pre-oxidation with K = 46 combined with bioremediation was performed. Experimental results showed that a similar efficient biodegradation (≈261 mg kg −1 ) of long-chain alkanes C 30 -C 25 at each stage was obtained after instant Fenton pre-oxidation with K = 46. So up to 75% of the biodegradation of long-chain alkanes occurred after instant Fenton pre-oxidation with K = 46, which was 2.3-and 2.0-fold greater than the corresponding biodegradation of long-chain alkanes after noninstant Fenton pre-oxidation with K ≠ 46. CONCLUSION: The study indicated that efficient sustainable bioremediation of long-chain alkanes can be achieved after instantFenton pre-oxidation with K = 46. Analyses of microbial diversity revealed that a possible explanation for the efficient sustainable bioremediation of long-chain alkanes in soils was that sensitive, slow growth of the IHDs Nocardiode and Noviherbaspirillum was not damaged after instant Fenton pre-oxidation with K = 46.

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Effect of Fenton pre-oxidation on mobilization of nutrients and efficient subsequent bioremediation of crude oil-contaminated soil

Cited by 48 publications

References 41 publications

Remediation of oil-contaminated harbor sediments by chemical oxidation

Remediation of oil-contaminated harbor sediments by chemical oxidation

A Novel Combination of Surfactant Addition and Persulfate-assisted Electrokinetic Oxidation for Remediation of Pyrene-Contaminated Soil

Efficient sustainable bioremediation of long‐chain crude oil in soils using instant Fenton pre‐oxidation

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