Bioremediation of Petroleum-Contaminated Soil

Abstract

Petroleum is not only an important energy resource to boost the economic development, but also a major pollutant of the soil. The toxicity of petroleum can cause a negative impact on ecosystem, as well as the negative effects related to its carcinogenic for both animals and humans. In the present study, bioremediation as an alternative tool for restoration petroleum-contaminated soils was set forth, and focusing on the phytoremediatior plants, petroleum-biodegradable microorganism are responsible for the biodegradation of petroleum. In the present chapter, the bioremediation of petroleum-contaminated soil, as well as the influence factors of bioremediation are elaborated based on the recently studies. This will provide a novel understanding on bioremediation and help improve strategies for petroleumcontaminated soils remediation.

Enzymatic Assessment of the State of Oil-Contaminated Soils in the South of Russia after Bioremediation

“…After the introduction of ameliorants, it is necessary to use the most informative and sensitive indicators of biodiagnostics of oil-contaminated soils, making it possible to assess the effectiveness of their restoration by the rate of restoration of soil fertility. Currently, many restoration technologies are available to work with soils contaminated with petroleum hydrocarbons, including solvent washing followed by extraction, incineration and thermal desorption, chemical oxidation, electrokinetic remediation, and other approaches [9][10][11][12][13]. However, in most of these methods, there is no possibility of mass application, due to the high cost and the threat of secondary pollution with petroleum hydrocarbons.…”

Soil initial bacterial diversity and nutrient availability determine the rate of xenobiotic biodegradation

“…bio‐attenuation) (Cébron et al ., 2011; Xu and Zhou, 2017; Ławniczak et al ., 2020) and, in the plethora of highly diverse and specialized microbial communities capable of PAH degradation (Fernández‐Luqueño et al ., 2011; Patel et al ., 2020), bacteria are considered as the most efficient and favourable (Premnath et al ., 2021). However, bio‐attenuation relies on the natural ability of microorganisms such as bacteria to carry out the degradation of PAHs, and several engineered bioremediation strategies are commonly employed to improve the microbially mediated removal of these recalcitrant contaminants in soils, including biostimulation and phytoremediation (Tyagi and da Fonseca, 2011; Chen and Zhong, 2019). Biostimulation provides for the adjustment of abiotic environmental conditions (e.g.…”