Comparison of the biodegradation performances of used lubricating oil adsorbed on bentonite using the bacterial consortium of oil-feeding microbes (Rhodococcus, Pseudomonas and Bacillus)

Chirre-Flores J.H.; Robles-Calderón R. · Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology (2023)

Resumen

The planet is being affected by environmental contamination due to petroleum residues such as used lubricating oils, which originate from the lubricating oil of various commercial brands used by vehicles, industrial machines, among others, which lose their properties when used. physical and chemical characteristics that cause pollutants in its composition such as sulfur, heavy metals, water, etc. In the present study, the biodegradation performance of the lubricating oil used will be evaluated, using the Oil Eating Microbes (OEM) bacterial consortium made up of three bacteria (Rhodococcus, Pseudomonas and Bacillus), which quantified the biodegradation percentage of total petroleum hydrocarbons. contained in the Tonsil 166 bentonite clay, the optimal result of two experimental tests was a biodegradation percentage of 57 %, at a temperature of 35 °C, pH 7.0; with mechanical agitation of 120 RPM and a dilution of the contaminated clay with used lubricating oil in water of 1(clay):3(water).

Instituciones: Universidad Nacional Mayor de San Marcos; Universidad Privada del Norte