Design of Organic Waste-based Biogas Lamp for Low Light Area in Universitas Pertamina

Abstract

Organic waste often has a negative impact on the environment due to the speed of its decomposition. By the production of 31.51% of organic waste at Universitas Pertamina, it has the potential to produce disease vectors and bad aesthetics if not managed properly. In line with the vision and mission of Universitas Pertamina in the energy sector, this study aims to design biogas lamp made from biodegradable waste for the campus area. The location of the placement of the biogas lamp is planned in a low light and safe area for the biodigester installation. There were three alternative designs for biogas lamp circuits (conversion of gas to electricity with a generator, automatic ignition gas lamp, manual ignition gas lamp), the second alternative was selected using the analytical hierarchy process (AHP) method. The design was planned to process 100% biodegradable waste generation at Universitas Pertamina, which produce 0.63 m 3 of methane gas with the ability to turn on the biogas lamp for five days (3 hours/day). Purification of biogas was done by adding zeolite at the installation as much as 0.75 kg/year. The volume of the biodigester required was 1.38m3 as much as 2 units with the addition of a gas regulator and a biogas purification tube in the installation circuit. This series of biogas lighting installations requires an investment of IDR 20 millions with the installation location planning to be in the campus drop-off area.