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

Autor(es) y otros:
Marañón Maison, María ElenaAutoridad Uniovi; Castrillón Peláez, LeonorAutoridad Uniovi; Vázquez, Isabel; Sastre Andrés, HerminioAutoridad Uniovi
Palabra(s) clave:

Farms

Cattle manure

Anaerobic treatment

Upflow anaerobic sludge blanket (UASB)

Fecha de publicación:
2001
Editorial:

Sage

Versión del editor:
http://dx.doi.org/10.1177/0734242X0101900508
Citación:
Waste Management & Research, 19(5), p. 436-441 (2001); doi:10.1177/0734242X0101900508
Descripción física:
p. 436-441
Resumen:

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 mgO2 l–1. The highest percentage of COD removal obtained was 75.5% for a hydraulic residence time of 22.5 days. Gas production varied between values of 0.20-0.39 m3gas.kg–1 COD removed, with a methane content of up to 64%. There was a fraction refractory to biodegradation of 11%.

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 mgO2 l–1. The highest percentage of COD removal obtained was 75.5% for a hydraulic residence time of 22.5 days. Gas production varied between values of 0.20-0.39 m3gas.kg–1 COD removed, with a methane content of up to 64%. There was a fraction refractory to biodegradation of 11%.

URI:
http://hdl.handle.net/10651/29113
ISSN:
0734–242X
DOI:
10.1177/0734242X0101900508
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  • Artículos [37534]
  • Ingeniería Química y Tecnología del Medio Ambiente [354]
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