Microbial purification technique of mineral dressing plants reject waters.
FEMS Microbiol Rev
; 11(1-3): 153-8, 1993 Jul.
Article
en En
| MEDLINE
| ID: mdl-8357615
ABSTRACT
Earlier investigations on laboratory and pilot plant scale have shown the resort to microorganisms to be a practicable approach to the problem of purifying mineral dressing plant reject waters from residual flotation reagents and/or metal ions. In spite of the proven effectiveness of this method, one major drawback, namely the pathogenicity of some microorganisms, has so far hampered its application on a commercial scale. A research programme, aimed at developing a microbial reject water purification technique utilizing non-pathogenic strains was thus drawn up and is currently being implemented. Strains such as Bacillus subtilis, Saccharomyces cerevisiae, Bifidobacterium bifidum, Lactobacillus acidophilus and Acinetobacter calcoaceticus, which are not harmful to human health, some of them being commonly found in the human intestine, have been successfully tested for removing alkylsulphates, alkylamines and fatty acids from solutions simulating flotation plant tailings waters. Removals as high as 90% in less than 48 h can be easily achieved with no nutrient requirements, since in most cases the flotation reagent residue to be removed is metabolized by the microorganisms themselves.
Buscar en Google
Banco de datos:
MEDLINE
Asunto principal:
Saccharomyces cerevisiae
/
Bacterias
/
Abastecimiento de Agua
/
Eliminación de Residuos Líquidos
/
Minerales
Límite:
Humans
Idioma:
En
Año:
1993
Tipo del documento:
Article