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Anaerobic treatment of leachates in UASB reactors
Author(s) -
Berrueta José,
Castrillón Leonor
Publication year - 1992
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280540107
Subject(s) - leachate , hydraulic retention time , biodegradation , environmental science , blanket , anaerobic exercise , waste management , nutrient , phosphate , pulp and paper industry , environmental chemistry , chemistry , environmental engineering , wastewater , materials science , engineering , biology , physiology , organic chemistry , composite material
Leachates from the solid urban wastes landfill of Asturias were characterized and treated in upflow anaerobic sludge blanket laboratory reactors. The highest percentage of COD removal was 88% for a hydraulic retention time of 2–4 days. Gas production was close to the theoretical values, with CH 4 content up to 88%. HCl was needed to keep pH neutral, and phosphate was added as nutrient. There was a refractory fraction to the biodegradation of 7%.