Evaluación de la disminución de bifenilos policlorados (PCBs) y halógenos totales mediante el uso de un consorcio bacteriano aislado presente en el aceite lubricante de motor usado
Used diesel lubricating oils contain a high level of contaminants that acquire throughout their useful life, the most common are heavy metals such as iron, copper, zinc, among others, these can come from the deterioration of engine parts or the addition of additives. However, they are not the only o...
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2019
- Institución:
- Universidad de América
- Repositorio:
- Lumieres
- Idioma:
- spa
- OAI Identifier:
- oai:repository.uamerica.edu.co:20.500.11839/7619
- Acceso en línea:
- https://hdl.handle.net/20.500.11839/7619
- Palabra clave:
- ALU
Bifenilos policlorados
Halógenos totales
Tratamiento
ULO
Polychlorinated biphenyls
Total halogens
Treatment
Tesis y disertaciones académicas
- Rights
- License
- Atribución – No comercial – Sin Derivar
| Summary: | Used diesel lubricating oils contain a high level of contaminants that acquire throughout their useful life, the most common are heavy metals such as iron, copper, zinc, among others, these can come from the deterioration of engine parts or the addition of additives. However, they are not the only ones, there are others which are not so common and more complicated to treat such as Polychlorinated Biphenyls and Total Halogens which, when they are not removed from the oil correctly, can cause serious environmental and health impacts. This research has as focus the treatment of the lubricating oil used for the removal of these last pollutants by means of an isolated bacterial consortium present in it. The isolation and identification of each of the bacterial strains belonging to the consortium had a duration of 3 months, followed by the treatment of the used lubricating oil (ULO) at three different consortium/ULO proportions and finally the technical specifications for the design of the bioreactor for the bacterial consortium culture were established. The investigation determined that the consortium is formed by four different strains, three belonging to the genus Bacillus and one to the genus Streptococcus; with which the biological treatment of ULO was carried out during 7 days, at a temperature of 36 ºC, 100 rpm and in aerobic condition; this mixed culture achieved a maximum removal of 99.2% of Total Halogens and 84.52% of Polychlorinated Biphenyls present in the used lubricating oil. |
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