The influence of thermal desorption on genotoxicity of multipolluted soil

Bonnard, Marc; Devin, Simon; Leyval, Corinne; Morel, Jean-Louis; Vasseur, Paule

doi:10.1016/j.ecoenv.2010.02.023

Cited by 53 publications

(20 citation statements)

References 16 publications

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“…The pH of soil was changed (p = 0.007) and closer to neutral. Heating increases soil pH (Biache et al 2008;Bonnard et al 2010;Cébron et al 2011;Huang et al 2011;Yusiharni and Gilkes 2012). The pH change following LTTD could have been caused by the denaturation of organic acids (Certini 2005) or the release of alkali cations during the oxidation of organic matter (Terefe et al 2008).…”

Section: Changes In Physicochemical Properties Of Soilmentioning

confidence: 98%

“…Plant germination and growth can represent the potential of natural regeneration and biological productivity in the remediated soil (Fowler 1986). Earthworms are bioindicators of soil quality because of their ecological function in the soil matrix (Bonnard et al 2010). Therefore, microbial cell number, enzyme activities, plant germination and growth, and earthworm growth can be used as ecological indicators of soil health that can be affected by changes in the soil physicochemical properties (Ana Cláudia et al 2008;Scharenbroch et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…They showed that thermally treated soil had a high abundance and diversity of microorganisms and fauna, but enzymatic activities were weak because of significant changes in the physical and chemical properties of soil. High-temperature thermal desorption can increase genotoxicity to soil fauna such as earthworms, especially when the soil is also contaminated by heavy metals (Bonnard et al 2010).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Changes in Ecological Properties of Petroleum Oil-Contaminated Soil After Low-Temperature Thermal Desorption Treatment

Park

Munster

et al. 2016

Water Air Soil Pollut

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Effects of low-temperature thermal desorption (LTTD) treatment on the ecological properties of soil contaminated by petroleum hydrocarbons were assessed. For this purpose, various ecological properties related to soil health and physicochemical properties of the oil-contaminated soil before and after LTTD treatment were investigated. Total petroleum hydrocarbon concentration, electrical conductivity, organic matter, and total nitrogen decreased while water-holding capacity and available P 2 O 5 increased. The soil color was also changed but textural class was not changed after LTTD. The microbial number and dehydrogenase activity increased following LTTD, but there was no significant difference in the β-glucosidase and acid phosphatase activities. Seed germination succeeded after LTTD, but the germination rate was still lower than that in noncontaminated soil as the growth of plants and earthworms was. The results showed that overall soil health related to biological productivity and environmental functions was improved after LTTD and suggested that LTTD could be a better alternative to other harsh remediation methods. However, ecological indicators still show differences to the adjacent non-contaminated level. Therefore, to ensure safe soil reuse, the change in eco-physiochemical properties as well as contaminant removal efficiency during the remediation process should be considered.

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Section: Changes In Physicochemical Properties Of Soilmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Changes in Ecological Properties of Petroleum Oil-Contaminated Soil After Low-Temperature Thermal Desorption Treatment

Park

Munster

et al. 2016

Water Air Soil Pollut

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“…in determining chemicals bioavailability [2,3]. These are determining factors for their toxicity to soil organisms [3,4]. The best integrators of these complex effects are exposed organisms themselves [2,3].…”

Section: Introductionmentioning

confidence: 99%

Genotoxic endpoints in the earthworms sub-lethal assay to evaluate natural soils contaminated by metals and radionuclides

Lourenço

Pereira

Silva

et al. 2011

Journal of Hazardous Materials

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“…One potential impact of heating the soil during the TD process may be changes to CEC caused by alterations in soil mineral-ogy or loss of soil organic matter (Bonnard et al, 2010;O'Brien et al, 2016). The temperature threshold for clay deterioration is normally above 500°C (Pape et al, 2015).…”

Section: Soil Science Society Of America Journalmentioning

confidence: 99%

Binary Exchanges of Calcium, Magnesium, and Potassium on Thermally Desorbed Soil

Ritter

DeSutter

O’Brien

et al. 2017

Soil Science Soc of Amer J

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Thermal desorption (TD) remediates hydrocarbon-contaminated soil by heating the soil (200-500°C) to volatilize the hydrocarbons, effectively removing the contaminant from the soil. Knowledge of the effects of TD on remediated soil for agricultural crop production are limited, but cation exchange capacity (CEC) and selectivity for cations can be good indicators of plant productivity potential. In this study, the CEC and selectivity of cations of TD-treated and untreated topsoil and subsoil were compared using binary exchange measurements of Ca-Mg, Ca-K, and Mg-K. The tested soils were illite and smectite-dominated Mollisols that were collected near an active TD-remediation site in northwest North Dakota. Vanselow selectivity coefficients and Gibb's free energies (ΔG ex ) were computed. For all three exchanges, significant differences were observed in ΔG ex between the untreated and TD-treated topsoil. In the Ca-Mg exchange, both the untreated and TD-treated topsoil preferred Ca, whereas both TD-treated and untreated subsoils preferred Mg. For the Ca-K and Mg-K exchanges, all treatments preferred K. Cation exchange capacity values were significantly greater in the untreated subsoil of the Ca-Mg exchange and the untreated topsoil and subsoil of the Ca-K exchange than in the TD-treated soils. The differences may be caused by contrasts in soil organic C and mineralogy. Although CEC and ΔG ex differed between untreated and TD-treated soils, the cation selectivities were not altered, suggesting that the magnitude of the differences may not require alternative fertility management to retain previous soil productivity. Core Ideas• Thermal desorption is used to remediate contaminated soil.• Thermal desorption can alter Gibb's free energies.• Thermal desorption at 350°C did not change cation selectivity.

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The influence of thermal desorption on genotoxicity of multipolluted soil

Cited by 53 publications

References 16 publications

Changes in Ecological Properties of Petroleum Oil-Contaminated Soil After Low-Temperature Thermal Desorption Treatment

Changes in Ecological Properties of Petroleum Oil-Contaminated Soil After Low-Temperature Thermal Desorption Treatment

Genotoxic endpoints in the earthworms sub-lethal assay to evaluate natural soils contaminated by metals and radionuclides

Binary Exchanges of Calcium, Magnesium, and Potassium on Thermally Desorbed Soil

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