MICROBIAL FUEL CELL WITH Cu-B CATHODE POWERING WITH WASTEWATER FROM YEAST PRODUCTION

Abstract

With the increasing standard of living, energy consumption increases as well. So, waste production, including wastewater, increases as well. One of the types of wastewater is wastewater from yeast industry. Wastewater from this industry has not only a high pollutants load but it is produced in great amounts as well. Technical devices that can accomplish the wastewater treatment and electricity production from wastewater is a microbial fuel cell. In microbial fuel cells activated sludge bacteria can be used for electricity production during wastewater treatment. The possibility of using the Cu-B alloy as cathode catalyst for microbial fuel cells to wastewater treatment of wastewater from yeast industry is presented in this paper. The reduction time for COD with the use of microbial fuel cell with the Cu-B catalyst (with 5, 10 and 15% amount of B) is similar to the reduction time with aeration. The obtained power (4.1 mW) and the amount of energy (0.93 Wh) are low. But, if one can accept a longer COD reduction time, the obtained amount of energy will allow elimination of the energy needed for reactor aeration.

Single chamber microbial fuel cell with Ni-Co cathode

“…The obtained results are comparable to the results using e.g. carbon or Cu-B alloy as cathode catalyst [25,31]. The fundamental possibility of using of Ni-Co alloy as cathode catalyst of single chamber MFC for municipally wastewater was obtained in this paper.…”

“…But, in real conditions the choice of catalyst is mainly carried out by experimental methods. For this reason experimental research of search a new catalysts for MFCs are still conducted [15,16,[18][19][20][21][22][23][24].…”

Possibility of direct electricity production from waste canola oil

“…Investigated waste canola oil emulsion (WCOE) was obtained by mixing, in various ratios of water, waste canola oil and the detergent. WCOE was obtained with the use of a mechanical stirrer, with the speed of about 1200 rpm [10][11][12][13][14][15]. Concentration of canola oil and Syntanol DS-10 was equal to 0.0100%, 0.025% and 0.0500%.…”

“…However, there are problems with cheap production and storage of this fuel, and that is the reason for the search of new fuels for FCs, including biofuels [3,[6][7][8][9]. Previous studies by the authors [10][11][12][13][14][15] have shown a possibility of electrooxidation (in various electrolytes) of petroleum derivatives and vegetable oils, e.g. canola oil, sun flower oil or grape seed oil.…”

Direct Electricity Production From Coconut Oil - The Electrooxidation Of Coconut Oil In An Acid Electrolyte

“…However, problems with the storage of hydrogen are the reason for the search for new fuels for FCs, eg. crude oil, petroleum derivatives [5][6][7] or biofuels [8][9][10][11].…”