Optimization of Abiotic Factors for Biogas Production from Vegetable Agronomic Wastes

Abstract

Vegetable wastes, fruit wastes and cow dung was collected and brought to the laboratory. 1kg of each vegetable wastes and fruit wastes were partially sterilized and homogenized before fermentation. Then the wastes were mixed with equal volume of distilled water with 1:1 ratio. The mixture is maintained at the pH of 6.8-7.2. The biogas was collected in a balloon which was connected to the inlet slit of the reactor. From the result, clearly revealed that the biogas production efficiency completely depends upon the emperature effect of the particular types or ingredients present on the experimental sample wastes. Vegetable wastes over maximum (90%) production noted at 25-300C.
Hence, the current result conformed that this optimum temperature is susceptible or support for the production of biogas from the vegetable wastes. Moreover, other parallel higher production (80%) noted on 30-400C and 40-500C from Fruit and Cow dung wastes respectively. From the result showed the vegetable wastes produces high gas production on the 2nd day resulting at 90% of biogas, followed by fruit wastes on 3rd day resulting at 50% of biogas production with lowest acidity. Hence, the results evidenced that the vegetable wastes with enhancer showed the higher production of biogas in less retention time.