Effect of combination of electrolyte and buffer on electrical production in fuel cell microbial system withPseudomonas sp.in molasses substrate

Maswati Baharuddin,Muh Rajib,Ummi Zahra,Sappewali Sappewali,H Herdiansyah,A Sodri

doi:10.1051/e3sconf/202021103001

Abstract

MFC is a bio-electrochemical system driving an electric current by using high-energy bacteria and oxidants. This research aimed to investigate the effect of electrolyte and buffer on electrical production using Pseudomonas sp. In Molasses substrate. The method in this research was the double compartment that consist of anode and cathode chambers. Both were related by salt bridge. This study showed that the addition of a combination of KMnO4electrolyte solution with sodium phosphate buffer solution obtained a maximum potential difference of 0.67 V. The result also revealed that the combination of KMnO4electrolyte solution with Potassium Phosphate Buffer solution produced a 1.44 mA maximum current with power density of 660.82 mW/m2.

Highlights

Energy is one of the important components used in human activities using at human activities
Substrate is one of the important components in the Microbial Fuel Cell Technology (MFC) system as an energy source for bacteria that will be converted into electrical energy [1]
The result showed current and potential differences in the molasses substrate when combined with the addition of KMnO4 and K3Fe(CN)6 electrolytes in the cathode chamber, whereas in the anode chamber variations of sodium phosphate buffer and potassium phosphate buffer were used at pH 7

Summary

Introduction

Energy is one of the important components used in human activities using at human activities. The energy can be produced from biomass waste that still contains organic compounds such as molasses, bagasse, and water hyacinth. Substrate is one of the important components in the MFC system as an energy source for bacteria that will be converted into electrical energy [1]. Molasses is a syrup by-product of sugar which is unable to crystallize. It consists of 4055% sucrose with a pH approximately 5.5 - 6.5 and organic acids as a substrate [2]. The use of types condition in the MFC system influenced the production of energy

Objectives

Methods

Results