Lindane dissipation in a biomixture: Effect of soil properties and bioaugmentation
The biomixture is the major constituent of a biopurification system and one of the most important factors in its efficiency; hence the selection of the components is crucial to ensure the efficient pesticides removal. Besides,bioaugmentation is an interesting approach for the optimization of these system...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/82354 |
| Acceso en línea: | http://hdl.handle.net/11336/82354 |
| Access Level: | acceso abierto |
| Palabra clave: | Biomixture Pesticides Biopurfiication System Actinobacteria https://purl.org/becyt/ford/2.8 https://purl.org/becyt/ford/2 |
| Sumario: | The biomixture is the major constituent of a biopurification system and one of the most important factors in its efficiency; hence the selection of the components is crucial to ensure the efficient pesticides removal. Besides,bioaugmentation is an interesting approach for the optimization of these systems.A mixed culture of the fungus Trametes versicolor SGNG1 and the actinobacteria Streptomyces sp. A2, A5, A11,and M7, was designed to inoculate the biomixtures, based on previously demonstrated ligninolytic and pesticidedegradingactivities and the absence of antagonism among the strains. The presence of lindane and/or the inoculum in the biomixtures had no significant effect on the development of culturable microorganisms regardless the soil type. The consortium improved lindane dissipation achieving 81?87% of removal at 66 d ofincubation in the different biomixtures, decreasing lindane half-life to an average of 24 d, i.e. 6-fold less than t1/2 of lindane in soils. However, after recontamination, only the bioaugmented biomixture of silty loam soil enhancedlindane dissipation and decreased the t1/2 compared to non-bioaugmented. The biomixture formulated with silty loam soil, sugarcane bagasse, and peat, inoculated with a fungal-actinobacterial consortium, could be appropriate for the treatment of agroindustrial effluents contaminated with organochlorine pesticides in biopurification systems. |
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