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Green Energy Production and Integrated Treatment of Pharmaceutical Wastewater Using MnCo 2 O 4 Electrode Performance in Microbial Fuel Cell

Author

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  • Arul Devi Ettiyan

    (Department of Civil Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, India)

  • Tamilarasan Karuppiah

    (Department of Civil Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, India)

  • Shabarish Shankaran

    (Department of Civil Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, India)

  • Simona Di Fraia

    (Department of Engineering, University of Naples “Parthenope”, Centro Direzionale, Isola C4, 80133 Naples, Italy)

Abstract

The wastewater produced by the pharmaceutical industry is highly organic and toxic. Dual-chambered microbial fuel cells (DMFCs) may represent a sustainable solution to process wastewater while simultaneously recovering its energy content. DMFCs are bio-electrochemical devices that employ microorganisms to transform the chemical energy of organic compounds into electrical energy. This study aims to demonstrate the feasibility of a DMFC with a manganese cobalt oxide-coated activated carbon fiber felt (MnCo 2 O 4 -ACFF) electrode to treat pharmaceutical industry wastewater (PW) and exploit its energy content. The proposed technology is experimentally investigated considering the effect of the organic load (OL) on the system performance in terms of organic content removal and electricity production. As per the experimental campaign results, the optimum OL for achieving maximum removal efficiencies for total chemical oxygen demand, soluble oxygen demand, and total suspended solids was found to be 2 g COD/L. At this value of OL, the highest current and power densities of 420 mA/m 2 and 348 mW/m 2 were obtained. Therefore, based on the outcomes of the experimental campaign, the (MnCo 2 O 4 -ACFF) electrode DMFC technique was found to be a sustainable and effective process for the treatment and energy recovery from PW.

Suggested Citation

  • Arul Devi Ettiyan & Tamilarasan Karuppiah & Shabarish Shankaran & Simona Di Fraia, 2024. "Green Energy Production and Integrated Treatment of Pharmaceutical Wastewater Using MnCo 2 O 4 Electrode Performance in Microbial Fuel Cell," Sustainability, MDPI, vol. 16(13), pages 1-13, July.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:13:p:5654-:d:1427514
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    References listed on IDEAS

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    1. Subhashis Das & Rajnish Kaur Calay, 2022. "Experimental Study of Power Generation and COD Removal Efficiency by Air Cathode Microbial Fuel Cell Using Shewanella baltica 20," Energies, MDPI, vol. 15(11), pages 1-12, June.
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