Anaerobic Digestion of Fruit Wastes For Biogas Production

Biotechnology

Biogas production can be generated by sludge digestion process in the form of methane and carbon dioxide through anaerobic digestion process (AD). AD is a biochemical process which involves breaking down biological substances without the presence of oxygen. The ability to reduce organic matter into biogas through the production of biogas (methane gas), not only able to save space on landfills but also introduce new alternatives for natural gas. In this study, fruit wastes; banana and pineapple peels were used to produce biogas by using AD and to determine their physical characterization. The experiment was conducted at mesophilic condition (37oC) for 5 days, and the optimum pH value was between 6.8-7.2. The results had shown 17 -19% of total solid, 85-95% of volatile solids and pH at range of 3.3-6.7%. While total biogas results showed, pineapple peel had a higher value (571.4 ml) compared to banana (386.6 ml). This study also determine the presence of heavy metal (lead and ferum) in fruit wastes (samples) by using AAS, and results showed that the concentration of ferum (2.5256 mg/Kg) was higher in pineapple than banana peel (0.6700 mg/Kg). However, the concentration of lead in pineapple (0.1705 mg/Kg) was slightly lower than banana (0.2121 mg/Kg).

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.