Physico-Chemical Properties of Before and After Anaerobic Digestion of Jatropha Seed Cake and Mixed With Pure Cow Dung

Abstract

In this study, the biogas production potential of Jatropha seed cake (JSC) was assessed in the laboratory. The physico-chemical analysis data Total solids (TS%), Volatile solids (VS%), Organic carbon (OC%), Total nitrogen (N%), Total phosphorus (P%), Total potassium (K%), Moisture content (MC%) of the cakes confirmed that JSC is feasible of anaerobic digesters. By blending, JSC with cow dung in different ratios, the feedstock of the biogas digesters was prepared. From the nine treatments to analyze the changes in physico-chemical parameters of the fresh and digested slurry of moisture content is highest after digestion Treatment control-2, 15.8% and lowest before digestion (12.2%). But before digestion, Treatment control-2, TS is 98.2% and VS is 93.12% higher than after digestion. The organic nutrients content Treatment control-2 is C%, 27.37%, N% 2.67 and K % 1.98 of BD is higher than AD but P% 1.078% thus the phosphorous content had increased during the digestion process.