Effect of free ammonia nitrogen on the methanogenic activity of swine wastewater
Electron. j. biotechnol
;
14(3): 2-2, May 2011. ilus, tab
Artigo
em Inglês
| 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:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Águas Residuárias
/
Amônia
/
Metano
/
Nitrogênio
Limite:
Animais
Idioma:
Inglês
Revista:
Electron. j. biotechnol
Assunto da revista:
Biotecnologia
Ano de publicação:
2011
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Chile
/
Espanha
Instituição/País de afiliação:
Universidad de Concepción/CL
/
Universidad de Santiago de Compostela/ES
Similares
MEDLINE
...
LILACS
LIS