M. Desai et D. Madamwar, SURFACTANTS IN ANAEROBIC-DIGESTION OF CHEESE WHEY, POULTRY WASTE, ANDCATTLE DUNG FOR IMPROVED BIOMETHANANATION, Transactions of the ASAE, 37(3), 1994, pp. 959-962
To obtain enriched methane content and improve the anaerobic digestion
of a mixture of cattle dung, poultry waste and cheese whey, with enri
ched methane content, the effect of various surfactants was studied. A
mong the surfactants tested, Tween 80 and sodium lauryl sulphate showe
d the maximum enhancement in gas production as well as methane content
, indicating better process performance. The Tween 80 dosed digester (
300 muL/L) produced about 3.5 L gas/L of digester/d with 70% methane.
Results also indicated increased percent COD reduction in the presence
of Tween 80.