LEELA WATI, CHYANIKA PUTATUNDA AND K.K. KAPOOR
Abstract
Anaerobic digestion of cattle dung supplemented with poultry droppings was carried out at 15- 16% total solid concentration in batch system under laboratory conditions and semi continuous mode in 2m3 capacity daily fed fixed dome biogas plant modified for solid state digestion. Supplementation of poultry droppings at 10, 20 and 30% to cattle dung resulted in enhancement in biogas production by 10.3, 24.8 and 36.9% under laboratory and 15-20% in field biogas plant. The nitrogen, phosphorous and potash content of effluent also improved by 22-23%.