Journal des bioprocédés et des biotechniques

Utilization of Sewage Sludge for Production of Electricity using Mediated Salt Bridge Based Dual Chamber Microbial Fuel Cell

Abstract

Anand Parkash*, Shaheen Aziz and Suhail A Soomro

For developing a feasible world we need to reduce the utilization of fossil fuels and also the pollutant production. These two aims can be fulfilled by treating the waste like sewage sludge. Sewage sludge is a perfect substrate for power generation as they rich in organic substance. This study consolidated bio-cathode with in a dual chamber MFC to generate voltage from sewage sludge (2 L) at a maximum voltage generated of 2.5 V. The use of bio cathode generates an internal resistance of 36-46 ohm, hence yielding maximum voltage generation (2.5 V) from MFC. Saccharomyces cerevisiae sp. was used as biocatalyst. Methylene blue (10 ml) was used a mediator and potassium ferricyanide (350 ml) was used as an oxidizing agent for the conversion of sewage sludge into voltage generation. In this MFC, anode solution was in batch and cathode was in continuous mode of operation under optimum conditions of the operating parameters like pH, oxygen flow rate and substrate concentration.