Biodegradation of pulp and paper mill effluent using anaerobic followed by aerobic digestion.
J Environ Biol
;
2006 May; 27(2 Suppl): 405-8
Article
in English
| IMSEAR
| ID: sea-113396
ABSTRACT
An experimental study was carried to find out the degradability of black liquor of pulp and paper mill wastewater for biomethanogenesis in continuous stirred tank reactor (CSTR) and followed by activated sludge process (ASP). Continuous stirred tank reactor was used in present study for anaerobic digestion of black liquor, while completely mixed activated sludge system was used for aerobic digestion. A maximum methane production was found up to 430 ml/day, chemical oxygen demand was reduced up to 64% and total volatile fatty acid increased up to 1500 mg/l from 975 mg/l at 7.3 pH, 37 degrees C temperature and 8 days hydraulic retention time during anaerobic digestion. In activated sludge process (aerobic digestion) chemical oxygen demand and biological oxygen demand reduction were 81% and 86% respectively at 72 hr hydraulic retention time.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Textile Industry
/
Water Pollutants, Chemical
/
Aerobiosis
/
Anaerobiosis
/
Industrial Waste
Language:
English
Journal:
J Environ Biol
Year:
2006
Type:
Article
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