Title: Reduction of the soil environmental impact caused by the presence of total petroleum hydrocarbons (TPH) by using Pseudomonas sp.

Authors (ORCID): PAREDES PÁLIZ, K. (0000-0002-5474-2566), CUNACHI, A.M., LICTA, E.

Keywords: bioaugmentation, biodegradation, total petroleum hydrocarbons, efficiency, bacterium

Abstract: This research focuses on the bioaugmentation with Pseudomonas sp. (native) and Pseudomonas aeruginosa (commercial) for the biodegradation of total petroleum hydrocarbons (TPH) of the environmental soil samples of the AqLab laboratory in Orellana, Ecuador. Two treatments of sterilized soil (one inoculated with the native strain and the other inoculated with the commercial strain), where used for physical- -chemical analyzes as well as the degradation of TPH. They were evaluated every 20 days for a total period of 80–100 days. The native bacterium was isolated from the laboratory agglomerates in a selective culture medium specific for Pseudomonas sp. The biodegradation of the TPH exhibited a positive result after 80 and 100 days of treatment, with a reduction of 84 and 96% of initial TPH after the bacterial inoculation. The comparison between the two strains evaluated, commercial and native, showed a greater efficiency of biodegradation by the native strain isolated directly from the agglomerates, suggesting working with native strains of the place that have a greater adaptability to the contaminated environment that would ensure bioremediation processes faster and more efficient, low cost and environmentally friendly.

DOI: 10.22630/PNIKS.2021.30.4.48

APA style references: Paredes Páliz, K., Cunachi, A.M. & Licta, E. (2021). Reduction of the soil environmental impact caused by the presence of total petroleum hydrocarbons (TPH) by using Pseudomonas sp.. Scientific Review Engineering and Environmental Sciences, 30 (4), 573-584. doi: 10.22630/PNIKS.2021.30.4.48

APA style citation in text: The first time citation in text: (Paredes Páliz, Cunachi & Licta, 2021), next citation: (Paredes Páliz et al., 2021)

Chicago style references: Paredes Páliz, Karina, Ana M. Cunachi, Edwin Licta. "Reduction of the soil environmental impact caused by the presence of total petroleum hydrocarbons (TPH) by using Pseudomonas sp.." Scientific Review Engineering and Environmental Sciences, 94 ser., vol. 30, no 4, (2021): 573-584. doi: 10.22630/PNIKS.2021.30.4.48.

Chicago style citation in text: (Paredes Páliz, Cunachi, and Licta 2021)

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