Aerobic treatment of swine manure to enhance anaerobic digestion and microalgal cultivation.
J Environ Sci Health B
; 53(2): 145-151, 2018 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-29131711
ABSTRACT
Aerobic treatment of swine manure was coupled with anaerobic digestion and microalgal cultivation. A 14-day aerobic treatment reduced the total solid content of swine manure by >15%. Ammonia and carbon dioxide were stripped by the air supplied, and this off-gas was further used to aerate the culture of Chlorella vulgaris. The microalgal growth rates in Bristol medium and the wastewater with the off-gas increased from 0.08 to 0.22 g/L/d and from 0.15 to 0.24 g/L/d, respectively. Meanwhile, the aerobically treated swine manure showed a higher methane yield during anaerobic digestion. The experimental results were used to establish a demonstration unit consisting of a 100 L composter, a 200 L anaerobic digester, a 60 L tubular photobioreactor, and a 300 L micro-open raceway pond.
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Base de dados:
MEDLINE
Assunto principal:
Gerenciamento de Resíduos
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Chlorella vulgaris
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Microalgas
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Esterco
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Metano
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article