Oxidation by Fenton's reagent combined with biological treatment applied to a creosote-comtaminated soil

Valderrama, César; Alessandri, R.; Aunola, Tuomo A.; Cortina, José Luis; Gamisans, Xavier; Tuhkanen, Tuula

doi:10.1016/j.jhazmat.2008.11.108

Cited by 91 publications

(53 citation statements)

References 37 publications

(86 reference statements)

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“…However, the 180-min treatment oxidized initially only 37% of TPH but ultimately removed more contamination as a coupled treatment. Similar results were obtained when various ratios of hydrogen peroxide to iron were used to oxidize creosote in aged natural samples (Valderrama et al 2009 (mol/mol) was aggressive enough to remove 43% of contaminants without impeding further bioremediation, which led to a total removal of 75% of PAHs. Column experiments, which may more accurately represent the injection of ISCO chemicals in the field, have highlighted the influence of oxidant concentration and volumetric flux on further bioremediation at a given location in the column.…”

Section: Optimizing the Quantity Of Chemical Oxidantsupporting

confidence: 69%

“…Biological degradation of the resin and aromatic fractions increased following permanganate treatment, while bioremediation of the aliphatic fraction was reduced by 50-60%. Similarly, when optimizing Fenton's reagent dosages for subsequent bioremediation of PAH-contaminated soil, it was noted that chemical treatment parameters had an influence on the fraction of ring sizes removed (Valderrama et al 2009). More of the less biodegradable five-ring PAHs were chemically oxidized in treatments with higher hydrogen peroxide concentrations.…”

Section: Bioavailability and Biodegradability Of Contaminants Followimentioning

confidence: 99%

“…As summarized in Table 1, chemical oxidation can create adverse environments in terms of pH and oxidation potential that inhibit general microbial growth and function. Recent work has indicated that the type Kulik et al 2006;Xie and Barcelona 2003) and quantity (Buyuksonmez et al 1999;Jung et al 2005;Palmroth et al 2006a;Sahl et al 2007;Valderrama et al 2009) of chemical treatment have repercussions on soil geochemistry and bacterial populations and thus on the success of continued bioremediation. Additionally, the ISCO step oxidizes a specific fraction of the contamination, producing a range of oxidized substrates.…”

Section: Introductionmentioning

confidence: 99%

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Efforts to improve coupled in situ chemical oxidation with bioremediation: a review of optimization strategies

et al. 2010

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Purpose In order to provide highly effective yet relatively inexpensive strategies for the remediation of recalcitrant organic contaminants, research has focused on in situ treatment technologies. Recent investigation has shown that coupling two common treatments-in situ chemical oxidation (ISCO) and in situ bioremediation-is not only feasible but in many cases provides more efficient and extensive cleanup of contaminated subsurfaces. However, the combination of aggressive chemical oxidants with delicate microbial activity requires a thorough understanding of the impact of each step on soil geochemistry, biota, and contaminant dynamics. In an attempt to optimize coupled chemical and biological remediation, investigations have focused on elucidating parameters that are necessary to successful treatment. In the case of ISCO, the impacts of chemical oxidant type and quantity on bacterial populations and contaminant biodegradability have been considered. Similarly, biostimulation, that is, the adjustment of redox conditions and amendment with electron donors, acceptors, and nutrients, and bioaugmentation have been used to expedite the regeneration of biodegradation following oxidation. The purpose of this review is to integrate recent results on coupled ISCO and bioremediation with the goal of identifying parameters necessary to an optimized biphasic treatment and areas that require additional focus. Conclusions and recommendations Although a biphasic treatment consisting of ISCO and bioremediation is a feasible in situ remediation technology, a thorough understanding of the impact of chemical oxidation on subsequent microbial activity is required. Such an understanding is essential as coupled chemical and biological remediation technologies are further optimized.

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Section: Optimizing the Quantity Of Chemical Oxidantsupporting

confidence: 69%

Section: Bioavailability and Biodegradability Of Contaminants Followimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efforts to improve coupled in situ chemical oxidation with bioremediation: a review of optimization strategies

et al. 2010

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“…This reaction increases availability source of carbon to microorganisms in biological treatment. They can also be combined with bioremediation to design complete soil treatment processes [12].…”

Section: Introductionmentioning

confidence: 99%

Biostimulation combined treatments for remediation of diesel contaminated soil

Calvo¹,

Silva-Castro²,

Uad³

et al. 2010

WIT Transactions on Ecology and the Environment

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Bioremediation is an important technology for the restoration of oil polluted environments by indigenous or selected microorganisms. In general, the rate of biodegradation depends on the number and types of microorganisms, the nature and chemical structure of pollutants to be degraded and the environmental conditions. In this study we have evaluated the efficacy of the application of four different biostimulation treatments for the biodegradation of diesel contaminated soils. The treatments applied involved: (a) the addition of NPK fertilizer + Ivey I surfactant; (b) the addition of NPK fertilizer + Ethanol; (c) the addition of NPK fertilizer + Biorem; and (d) oxidation by Fenton's reagent combined with NPK fertilizer. Microbial activity was evaluated following growth of heterotrophic and degrading microorganisms, dehydrogenase activity and CO 2 production. Hydrocarbons degradation was established by determination of TPH, alkanes, branched alkanes, pristane and phytane by GC/MS. Our results have shown that the application of NPK fertilizer in combination with Ivey surfactant is an efficient treatment to be applied in clay soil. Treatment with Fenton's reagent previous to the application of NPK fertilizer also efficiently enhanced hydrocarbon biodegradation in saturated conditions.

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“…Apparent removal of PAHs had been observed in soil after Fenton oxidation in many studies (Martens & Frankenberger, 1995;Nam, Rodriguez, & Kukor, 2001;Saxe et al, 2000;Valderrama et al, 2009), but significant amount of PAHs in soil was also remained after applying sole Fenton oxidation in their studies. Therefore, it is necessary to further reduce concentration of PAHs after applying sole Fenton oxidation to remediate soils contaminated with PAHs.…”

Section: Article Historymentioning

confidence: 97%

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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Oxidation by Fenton's reagent combined with biological treatment applied to a creosote-comtaminated soil

Cited by 91 publications

References 37 publications

Efforts to improve coupled in situ chemical oxidation with bioremediation: a review of optimization strategies

Efforts to improve coupled in situ chemical oxidation with bioremediation: a review of optimization strategies

Biostimulation combined treatments for remediation of diesel contaminated soil

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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