Effect of free ammonia nitrogen on the methanogenic activity of swine wastewater
Electron. j. biotechnol
;
14(3): 2-2, May 2011. ilus, tab
Artículo
en Inglés
| LILACS
| ID: lil-602979
ABSTRACT
Swine wastewater is characterized by high organic matter content, solids, nitrogen (expressed as total ammonia and protein) and heavy metals. This work determines the methanogenic toxicity effect of free ammonia contained in swine wastewater comparing raw swine wastewater (RW) and the liquid fraction of swine wastewater (TW). The values of IC50 (50 percent of inhibition) obtained for methanogenic bacteria ranged between 56 and 84 percent for RW, meanwhile IC50 for TW was ranged between 84 and 94 percent. Such inhibitory effects can be related to the free ammonia nitrogen concentration (> 40 mg NH3-N/L) contained in swine wastewater.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Aguas Residuales
/
Amoníaco
/
Metano
/
Nitrógeno
Límite:
Animales
Idioma:
Inglés
Revista:
Electron. j. biotechnol
Asunto de la revista:
Biotecnologia
Año:
2011
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Chile
/
España
Institución/País de afiliación:
Universidad de Concepción/CL
/
Universidad de Santiago de Compostela/ES
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