Chemical diagenesis in near-surface zone above oil fields in geochemical exploration

Соболев, Игорь Станиславович; Bredikhin, Nikolay P.; Bratec, Tatiana; Falk, Alla Yu.; Толкачев, О. С.; Рихванов, Леонид Петрович; Тишин, П. А.

doi:10.1016/j.apgeochem.2018.05.005

Cited by 7 publications

(1 citation statement)

References 19 publications

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“…Thus, in areas of cold and moderately cold climates where the amount of precipitation exceeds their evaporation (e.g., tundra or taiga landscape zones), a probability of formation of stable emulsions of petrochemicals with water during spills and leaks is higher. This can result in their accumulation and generate lithogeochemical plumes and pollution flows (Alekseenko et al 2017 ; Boev et al 2019 ; Jordán et al 2016 ; Kruk et al 2018 ; Sobolev et al 2018 ). The humus content in these lands is low and ecosystems are unstable and almost incapable of self-cleaning.…”

Section: Introductionmentioning

confidence: 99%

Thermal desorption treatment of petroleum hydrocarbon-contaminated soils of tundra, taiga, and forest steppe landscapes

Bykova

Alekseenko

Пашкевич

et al. 2021

Environ Geochem Health

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The results of field, analytical, and experimental research at a number of production facilities reflect the properties of oil-contaminated soils in 3 landscapes: the permafrost treeless Arctic ecosystem, boreal forest, and temperate-climate grassland-woodland ecotone. Laboratory studies have revealed the concentrations of petroleum hydrocarbons in soils, ranging from medium levels of 2000–3000 mg/kg to critical figures over 5000 mg/kg, being 2–25 times higher than the permissible content of oil products in soils. The experimentally applied thermal effects for the oil products desorption from the soil allowed finding an optimal regime: the treatment temperature from 25 to 250 °C reduces the concentrations to an acceptable value. The conditions are environmentally sound, given that the complete combustion point of humates is ca. 450 °C. The outcomes suggest the eco-friendly solution for soil remediation, preserving the soil fertility in fragile cold environments and in more resilient temperate climates, where revitalized brownfields are essential for food production.

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Section: Introductionmentioning

confidence: 99%