Assessment of the Efficiency of Using Organic Waste from the Brewing Industry for Bioremediation of Oil-Contaminated Soils

Abstract

At present, the development and optimization of methods to eliminate the consequences of soil contamination with hydrocarbons is gaining increasing economic and social importance; it is the basis for sustainable development of the oil industry. Within the frames of the scientific research, a review of literature was carried out in the sphere of utilization of organic wastes from the food industry in reclamation of oil-contaminated soils; an experimental study of efficiency of the use of wastes from the brewing industry in the process of bioremediation of oil-contaminated soils was conducted and phytotoxicity of these wastes was determined. Experimental research was conducted at different initial concentrations of oil in the soil, which allowed to establish the optimal range of oil pollution level at which the efficiency of brewing waste use is the highest. Thus, at low concentrations (1000-2000 mg/kg), the dynamics of oil concentration decrease in the soil remained preserved throughout the whole duration of the experiment, and the efficiency of oil destruction in the soil exceeded 98%, which confirmed the overall efficiency of application of brewing waste for reclamation of oil-contaminated soils.

A critical review on the biotechnological potential of Brewers’ waste: Challenges and future alternatives

“…The interfacial tension at oil/water interfaces and the surface tension at air/water interfaces are both decreased by these amphiphilic biomolecules. In vitro and field studies have demonstrated that organic brewing waste boosts the activity of enzymes produced by microorganisms that oxidize hydrocarbons, speeds up the reduction of oil content, and enhances the chemical and physical characteristics of chernozemic environments ( Strizhenok et al, 2021 ). BSG includes complexes of nutrients and physiologically active chemicals that support the growth of hydrocarbon oxidizing microorganisms and consequently result in the degradation of hydrocarbons in the soil ecosystem ( Fig.…”

“…BSG includes complexes of nutrients and physiologically active chemicals that support the growth of hydrocarbon oxidizing microorganisms and consequently result in the degradation of hydrocarbons in the soil ecosystem ( Fig. 4 b) ( Strizhenok et al, 2021 ).…”