Composición de microorganismos eficientes autóctonos de un suelo contaminado por hidrocarburos

This study determines the influence of contaminated soil by hydrocarbons to the composition of Native Efficient Microorganisms (EMN), compared with the EMN of an uncontaminated soil, to do this was performed correlational research-causal non experimental type. The phenomenon was observed as it occurs in natural conditions and was further analyzed. Studied variables were not manipulated. The physic-chemical conditions of the soil in natural and contaminated state (texture, pH and TPH) were determined, samples of EMN from uncontaminated and contaminated state soil were collected and studied, determining CFU/ml from both samples and correlating the survival of native microorganisms in both conditions based using a T-Student statistic test and box plot. The differences of the characteristics of both types of soils were evident, one TPH 5819.20 mg / kg for contaminated soil and 775.20 mg / kg for control. Was obtained as a result, the existence of significant highly differences (P ≤ 0.001) and significant (P ≤ 0.005) in the composition of microorganisms of both soils, the survival rate of Mods and Lactobacillus was lower than the rest within the contaminated soil. The survival values obtained in the two types of soil, could know the clear survival of Bacillus and a possible ability of Yeasts to exist in contaminated soils further hydrocarbons potential as degraders, which could be studied soils, for populations of native hydrocarbon degrading microorganisms.

• Autor principal: Vera Cedeño, Darío Fabián (author)
• Format: bachelorThesis
• Idioma: spa
• Publicat: 2016
• Matèries: Microorganismos eficientes autóctonos EMA; Hidrocarburos; Composición; TPH
• Accés en línia: http://repositorio.espam.edu.ec/handle/42000/279