DESIGN OF ANAEROBIC DIGESTER FOR TREATING FOOD WASTE IN PPS SABUGA

• Main Author: NADHILA (NIM: 15314071), KIRANA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/28500
• Institution: Institut Teknologi Bandung

PPS is a waste processing facility owned by ITB which eaccommodates 3,463.13 kg waste daily, with food waste as its biggest constituent (42% or 1,454.51 kg). Until now, there is no specific treatment for food waste in PPS Sabuga. If not properly managed, food waste is prone to be the breeding ground disease vector and can contribute greenhouse gases (CH4) to the atmosphere. Anaerobic digester (AD) technology is very suitable to be applied to process food waste because not only negative impacts arising from food waste are handled, but also there is an economic value that can be obtained from the utilization of biogas production, leachate, and digestate. The chosen AD configuration is dry, batch, and mesophilic. The standards used for design purposes in this final project are SNI 7826:2012 and Regulation of Minister of Public Works No. 3/2013. Designed components of AD system are unloading area, conveyor belt, shredder, reactor, leachate container, residue container, gas container, and activated carbon unit to eliminate H2S. By applying AD, waste generation at PPS Sabuga decreases by 42% and from that process leachate (781.95 kg), digestate (637.46 kg), and biogas (35.1 kg) are produced. Leachate and digestate are used as fertilizer and compost while biogas is utilized for cooking at Tamansari Food Fest. With this design of anaerobic digester for treating food waste in the Bandung Institute of Technology Ganesha Campus, it is expected that the quantity of waste transported to the TPA is reduced while generating products that are significantly beneficial in many aspects