Production of Biogas from Mono- and Co-Digestion of Agricultural Waste (Cow Dung, Chicken Dropping, and Rice Husk)

This study focused on waste to energy technology that utilized mono- and co-digestion of cow dung (CD), chicken dropping (ChD), rice husk (RH). The fabricated digesters were assessed for the influence temperature pH biogas production from materials used. total aerobic bacteria fungi counts with droppings had highest number day zero (1.5x107cfu/ml, 1.6x105cfu/ml 1.4x108cfu/ml, 1.2x105, respectively), while lowest recorded 35th (1.3x101cfu/ml, 1.0x101cfu/ml 1.1x101cfu/ml, 1.0x101cfu/ml, respectively). count acetogenic organisms was 1.8x105cfu/ml 18th whereas no observed day. Methanogenic a ranging 1.0x 101 cfu/ml 3.4x104cfu/ml within range 5.3 – 8.5 in digesters. Cow (100% CD) showed cumulative gas 41.65m3 compared ChD) RH) which values 8.91 m3 0 m3, respectively, temperature. Furthermore, 75% CD + 25% ChD, 50% RH, ChD RH produced 20.1m3, 15.13m3, 7.51m3, 5.1m3, 2.09m3, at same 36.2OC - 41.7OC.
 assay nitrogen (N), phosphate (P), potassium (K) sulphate (S) find major plant nutrient digestate 100% richer N (1.8mg/l), P (0.5mg/l), S (0.5mg/l) than other biomass types, content P. present suggests digestion dung, droppings, can be an effective means management, pollution control, generation renewable (biogas) fertilizers, thereby further strengthening role agriculture area food security.