Salt enrichment of wastewater increased electricity production with variable impact on wastewater treatment of a microbial fuel cell

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Research Paper 07/03/2024
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Salt enrichment of wastewater increased electricity production with variable impact on wastewater treatment of a microbial fuel cell

Eudora O. Nwanaforo, Onyenonachi C. Ihejirika, Chinwe J. Nguma, Emilia O. Anyanwu, Christopher E. Nwanyanwu, Campbell O Akujobi
J. Bio. Env. Sci.24( 3), 9-19, March 2024.
Certificate: JBES 2024 [Generate Certificate]

Abstract

An H-Type microbial Fuel Cell (MFC) was developed that simultaneously treat Student’s hostel effluent and generate electricity. The MFC was designed using a 1.5%/1M NaCl agar salt bridge, copper and carbon electrodes, Potassium permanganate catholyte, and the waste water effluent as anolyte. The effect of addition of the salt enrichment to the anolyte was investigated for its effects on electricity generation and waste treatment. A max average Voltage of 1.10V was obtained which was increased to 1.16V upon enrichment of the anolyte with NaCl. On the other hand, for the COD removal efficiency of the carbon electrode MFC, it was 91.25% and on salt addition 92.29% and for the copper MFC, 86.88% and on salt addition 85.21%. The data for other parameters varies. These demonstrate that while salt enrichment enhances electricity, the effect on treatment varies dependent on type of electrode and the treatment parameter.

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