Comparison of a bioremediation process of PAHs in a PAH-contaminated soil at field and laboratory scales

Lors, Christine; Damidot, D.; Ponge, Jean‐François; Périé, Frédéric

doi:10.1016/j.envpol.2012.02.004

Cited by 115 publications

(45 citation statements)

References 33 publications

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“…There have been a number of studies demonstrating the successful use of biopiling to remediate PAH contaminated soil. Lors et al [35] used large field scale windrows (5000 tons each) to remediate soils heavily contaminated with PAHs (3000 mg kg -1 ). After 181 days they reported 85% degradation of EPA 16 PAHs.…”

Section: Discussionmentioning

confidence: 99%

Use of Ecopiling to Remediate PAH-Contaminated Storm-water Lagoon Sediment

Liu¹,

Kiwanuka²

2016

J Bioremediat Biodegrad

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Polycyclic Aromatic Hydrocarbons (PAHs) are widely distributed in the environment originating from both natural and anthropogenic sources. Consequently, they are found ubiquitously in the lithosphere, hydrosphere, atmosphere and biosphere. They are of major concern due to their recalcitrant nature, ability to bio-accumulate and their toxic, carcinogenic and mutagenic effects on biological systems. One major anthropogenic source of PAHs is creosote which is used as a wood preservative and contains 85% PAHs (w/w). Industrial facilities carrying out creosote treatment activities can result in major contamination of soil and groundwater at these sites. The current study investigates the potential of Ecopiling as a bioremediation strategy for creosote contaminated soil/sediment at a former wood preservation facility. The study involved greenhouse experiments to assess the phytoremediation potential of perennial ryegrass (Lolium perenne L.) and onsite construction of two small-scale, trial Ecopiles. The greenhouse study showed that the creosote contaminated sediment had an inhibitory effect on plant growth and reduced the effectiveness of rhizoremediation. However, the use of a clean soil overlay led to a significant decrease in the phyto-toxicity experienced by the ryegrass plants and subsequently resulted in greater PAH degradation in these pots. The use of Ecopiling was found to reduce the sum of EPA 16 PAH concentrations in the sediment by 94-96% after 730 days. The incorporation of spent-mushroom compost into the Ecopile, did initially increase the rate of PAH degradation, however, after 730 days there was no significant difference between the PAH concentrations remaining in the two Ecopiles. Although Ecopiling is a slow process compared to thermal and chemical treatments it has proven to be an effective and low cost process for the remediation of PAHs from industrial sediments.

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Section: Discussionmentioning

confidence: 99%

Use of Ecopiling to Remediate PAH-Contaminated Storm-water Lagoon Sediment

Liu¹,

Kiwanuka²

2016

J Bioremediat Biodegrad

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“…The losses of naphthalene from the soil columns are mainly attributed to volatilisation due to its elevated Henry's Law constant compared to the other tested PAHs. Park et al (1990) observed that volatilisation accounted for losses of 30% from two different soils under unsaturated conditions and Lors et al (2012) monitored the complete elimination of 2-ring PAHs in laboratory experiments conducted on PAH contaminated soils. There is also the possibility of microbial degradation as the soils were not sterilised and half-lives of the order of 2 days have been determined for naphthalene in soils (Park et al, 1990).…”

Section: Pah Distribution In the Soil Columnsmentioning

confidence: 99%

“…There is also the possibility of microbial degradation as the soils were not sterilised and half-lives of the order of 2 days have been determined for naphthalene in soils (Park et al, 1990). The potential for phenanthrene to undergo biodegradation is indicated by half-lives between 7 and 34 days with almost complete degradation (94%) in the soil environment after 3 months (Lors et al, 2012). The impact of biodegradation losses for phenanthrene in the soil column experiments is exemplified by the the total amounts retained at the end of the leaching experiment representing only 30.4 % (soil A) and 14.4 % (soil B) of that applied.…”

Section: Pah Distribution In the Soil Columnsmentioning

confidence: 99%

Soil mobility of surface applied polyaromatic hydrocarbons in response to simulated rainfall

Revitt

Balogh

Jones

2013

Environ Sci Pollut Res

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Polyaromatic hydrocarbons (PAHs) are emitted from a variety of sources and can accumulate on and within surface soil layers. To investigate the level of potential risk posed by surface contaminated soils, vertical soil column experiments were conducted to assess the mobility, when leached with simulated rainwater, of six selected PAHs (naphthalene, phenanthrene, fluoranthene, pyrene, benzo(e)pyrene and benzo(ghi)perylene) with contrasting hydrophobic characteristics and molecular weights/sizes. The only PAH found in the leachate within the experimental period of 26 days was naphthalene. The lack of migration of the other applied PAHs were consistent with their low mobilities within the soil columns which generally parallelled their log K oc values. Thus only 2.3% of fluoranthene, 1.8% of pyrene, 0.2% of benzo(e)pyrene and 0.4% of benzo(ghi)perylene were translocated below the surface layer. The PAH distributions in the soil columns followed decreasing power relationships with 90% reductions in the starting levels being shown to occur within a maximum average depth of 0.94 cm compared to an average starting depth of 0.5 cm. A simple predictive model identifies the extensive time periods, in excess of 10 years, required to mobilise 50% of the benzo(e)pyrene and benzo(ghi)perylene from the surface soil layer. Although this reduces to between 2 and 7 years for fluoranthene and pyrene, it is concluded that the possibility of surface applied PAHs reaching and contaminating a groundwater aquifer is unlikely.

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“…The lowest concentration of phenanthrene was obtained at a high level of macronutrients in the range of 67-87% and a low level of microelements (12-32%), where nitrogen was the dominant ingredient. The most effective biodegradation of phenanthrene proceeded in the following order N>K>P>Cl>Na>Mg [19][20][21].…”

Section: Application Of Chemical Compoundsmentioning

confidence: 99%

The ways to increase efficiency of soil bioremediation

Wołejko

Wydro

Loboda

2016

Ecological Chemistry and Engineering S

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Abstract:The aim of this paper was to present possibilities of using different substrates to assist the bioremediation of soils contaminated with heavy metals, pesticides and other substances. Today's bioengineering offers many solutions that enable the effective conduct of biological remediation, including both biostimulation and bioaugmentation. For this purpose, they are used to enrich various organic substances, sorbents, microbiological and enzymatic preparations, chemical substances of natural origin or nanoparticles. The use of genetic engineering as a tool to obtain microorganisms and plants capable of efficient degradation of pollutants may cause the risks that entails the introduction of transgenic plants and microorganisms into the environment. In order to determine the efficacy and possible effects of the various bioremediation techniques, it is required to conduct many studies and projects on a larger scale than only in the laboratory. Furthermore, it should be emphasized that bioremediation involves interdisciplinary issues and therefore, there is a need to combine knowledge from different disciplines, such as: microbiology, biochemistry, ecology, environmental engineering and process engineering.

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Comparison of a bioremediation process of PAHs in a PAH-contaminated soil at field and laboratory scales

Cited by 115 publications

References 33 publications

Use of Ecopiling to Remediate PAH-Contaminated Storm-water Lagoon Sediment

Use of Ecopiling to Remediate PAH-Contaminated Storm-water Lagoon Sediment

Soil mobility of surface applied polyaromatic hydrocarbons in response to simulated rainfall

The ways to increase efficiency of soil bioremediation

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