The influence of hydraulic residence time on the treatment of cattle manure in UASB reactors

Elena Maranon; Leonor Castrillon; Isabel Vazquez

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The influence of hydraulic residence time on the treatment of cattle manure in UASB reactors

机译：The influence of hydraulic residence time on the treatment of cattle manure in UASB reactors

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Cattle manure from farms in the autonomous community of Asturias, Spain, was characterised and subsequently treated, after filtration through a 1 mm sieve, in upflow anaerobic sludge blanket laboratory reactors. The volume generated per cow and day varied between 50-55 litres (obtained through a survey of 400 farms), the manure being used on Asturian farms up until now as a fertiliser. After screening, the COD of the manure employed varied between 33,000 and 56,000 mgO_2 1~(-1). The highest percentage of COD removal obtained was 75.5 percent for a hydraulic residence time of 22.5 days. Gas production varied between values of 0.20-0.39 m~3 gas kg~(-1) COD removed, with a methane content of up to 64 percent. There was a fraction refractory to biodegradation of 11 percent.

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来源
《Waste Management & Research》 |2001年第5期|436-441|共6页
作者
Elena Maranon; Leonor Castrillon; Isabel Vazquez;
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作者单位

Department of Chemical and Environmental Engineering. Higher School of Industrial Engineering, Campus of Gijon, 33204 Gijon, University of Ovideo, Spain;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类废物处理与综合利用;
关键词
farms; cattle manure; anaerobic treatment; upflow anaerobic sludge blanket (UASB);

The influence of hydraulic residence time on the treatment of cattle manure in UASB reactors

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