Penentuan Pengadukan Optimum Berdasarkan Pengomposan dan Produksi Listrik dalam CSMFCs (Compost Solid Phase Microbial Fuel Cells)

Abstract

Compost Solid Phase Microbial Fuel Cells are an alternative technology for processing organic waste that can produce clean energy as a result of processing solid materials. The problem with CSMFCs is the low power produced during the process, that it cannot be applied with the expected conditions. This study developed a CSMFCs system using turning frequency as an independent variable in influencing the performance of CSMFCs, both in producing mature compost and electricity. The electrode used was a graphene electrode strung in a reactor using a single chamber-air cathode configuration. The volume of the waste is 2/3 of the reactor volume and the source of waste comes from food waste, vegetable waste, soybean dregs, and leaf waste from the yard around Undip which is operated in batch conditions. The results showed that the most optimum performance was found at a turning frequency every 4 days. The compost result is compatible with SNI 19-7030-2004 and produces electricity with Power Density, Coulombic Efficiency (CE), and Energy Efficiency (EE) respectively 17.744 mW / m2, 0.6477%, and 0.0000733% on day 20.