#TITLE_ALTERNATIVE#

• Main Author: NABILAH (NIM : 15311002), HANDAYANI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/27676
• Institution: Institut Teknologi Bandung

<p align="justify">Everyday, canteens at ITB Ganesha generate a great amount of organic food waste (approximately 68.62 kg/day). Aside from emitting greenhouse gases, food waste generation can pollute the environment and become the source of disease vectors that eventually took part in a public health level reduction. As an effort towards ITB smart campus, Directorate of Development ITB is seeking for the utilization of food waste in ITB's canteens as a form of clean-technology implementation, particularly the retrieve-to-energy concept where kitchen wastes are treated into source of energy (biogas). Food waste processing experiment was carried from eight canteens in ITB Ganesha campus area through anaerobic digestion technique. The study was conducted by using three identical batch-type biodigester with a capacity of 13.5 L (Reactor A, B, and C) using different inoculum concentrations in the form of cow's rumen (25%, 5% and 0%) for 30 days. Reactor feed had levels of C/N ratio from about 22. to 25, making it suitable for anaerobic decomposition as the ideal range of C/N ratio is between 20-30. The results showed that the canteen food wastes from ITB Ganesha are potential to be treated by anaerobic digestion although the resulting gas production is not optimal due to pH fluctuations which is difficult to control. Reactor A (25% rumen) became variation with the best methane gas production that reached 0.004 m3/kg food waste, reactor B (5% rumen) with methane gas production of 0.001 m3/kg food waste, and reactor C with methane gas production reached 0.002 m3/kg food waste. By converting biogas produced with LPG gas, it was estimated that ITB Ganesha could save up to Rp. Rp. 648,500.00 per year. <br /> <p align="justify">