The raw material used in the biogas plant was cow dung.
The main physico-chemical parameters of BPS were: pH: 7.8 ± 0.2,
OCtotal: 471 ± 31 g/kg; Ntotal: 6.2 ± 0.3 g/kg, Pavail: 5.6 ± 0.15 g/kg;
Ktotal: 4.2 ± 0.1 g/kg; Natotal 1.9 ± 0.05 g/kg; C:N ratio: 75.9 ± 4.5.
The poultry droppings (PD) were collected from a poultry farm located
near Hisar, India.