The Performance of Salt Bridge Microbial Fuel Cell Bioelectric Generator in Variated Carrageenan-Carboxymethyl Cellulose Ratio

Abstract

The microbial fuel cell (MFC) system is a renewable technology that converts organic matter into energy in the form of electricity. The purpose of this study was to determine the highest electrical yield from fish ‘pindang’ liquid waste through salt bridge microbial fuel cell (MFC) technology and determine the optimal ratio of carrageenan: carboxylmethyl cellulose in salt bridges to generate electrical energy in the MFC system. The carrageenan-carboxylmethyl cellulose salt bridges were prepared by treating the different carrageenan-carboxylmethyl cellulose compositions of 1: 1, 0.6:1, and 0.5: 1 (w/w). The highest electric voltage was produced from the carrageenan-carboxylmethyl cellulose salt bridge treatment with a ratio of 1:1 with a value of 0.88 V. The carrageenan-carboxylmethyl cellulose salt bridge with a ratio of 0.5:1 was produced the highest current strength of 1.22 mA and the highest electrical power of 0.85 mW. In addition, the reduction efficiency values of BOD and TAN on fishery waste with the treatment of C:CMC ratio of 1:1 were 90.36%, and 60.45%. System salt bridge MFC showed excellent performance and has the potential to be developed in the future.