Respirometric studies on the effectiveness of biogas production from wastewaters originating from dairy, sugar and tanning industry.
Environ Technol
; 34(9-12): 1439-46, 2013.
Article
em En
| MEDLINE
| ID: mdl-24191477
ABSTRACT
The objective of the present study was to determine the effectiveness of biogas production during methane fermentation of wastewaters originating from the dairy, tanning and sugar industries, by means ofrespirometric measurements conducted at a temperature of 35 degrees C. Experiments were carried out with the use of model tanks of volume 0.5 dm3. A high production yield of biogas, with methane content exceeding 60%, was achieved in the case of the anaerobic treatment of wastewaters from the dairy and sugar industries. A significantly lower effect was observed in the case of tanning wastewaters. The effectiveness of the fermentation process decreased with increasing loading of the tanks with a feedstock of organic compounds. By loading a model tank with this feedstock, the effectiveness of treatment ranged from 62.8% to 71.4% residual chemical oxygen demand for dairy wastewaters and from 57.9% to 64.1% for sugar industry wastewaters. The efficiency of organic compound removal from tanning wastewaters was below 50%, regardless of the method applied.
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Base de dados:
MEDLINE
Assunto principal:
Eliminação de Resíduos Líquidos
/
Biocombustíveis
/
Águas Residuárias
/
Resíduos Industriais
/
Metano
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article