Degradation of microcystins by adsorbed bacteria on a granular active carbon (GAC) filter during the water treatment process.
J Environ Biol
;
2006 May; 27(2 Suppl): 317-22
Article
Dans Anglais
| IMSEAR
| ID: sea-113180
ABSTRACT
The degradation of microcystin by adsorbed bacteria on GAC (granular active carbon) filter from a water treatment facility was investigated. Dominant bacteria isolated from GAC were indigenous microorganisms, Psuedomonas sp. and Flavobacterium sp. The direct exposure of dominant GAC bacteria to microcystins resulted in a significant reduction of microcystin levels in both shaking and static conditions (t-test; p < 0.01). In bacteria-treatments, the half-life of microcystin was 2.6-3.5 days in both conditions. Based on this result, approximately 9-10 days would be estimated for 90% or up to 18-21 days of 99% of toxin to be degraded. This biological degradation by the GAC bacteria in combination with existing purification systems has potential to increase the efficiency of water purification.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
Sujet Principal:
Pseudomonas
/
Carbone
/
Flavobacterium
/
Adsorption
/
Microcystines
/
Filtration
/
Période
langue:
Anglais
Texte intégral:
J Environ Biol
Année:
2006
Type:
Article
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