Application of the eco-friendly bio-anode for ammonium removal and power generation from wastewater in bio-electrochemical systems

Rahmani, A.R and Nematollahi, D and Alizadeh, S and Samarghandi, M.R and Leili, M and Rahimnejad, M and Navidjouy, N (2020) Application of the eco-friendly bio-anode for ammonium removal and power generation from wastewater in bio-electrochemical systems. Journal of Cleaner Production, 243. pp. 1-12.

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Abstract

In this new insight, the potential application of the eco-friendly bioanode material was investigated with
the aim of ammonium removal and its recovery, alongside power generation from wastewater in bio-
electrochemical systems (BESs). In this procedure, biodegradation of ammonia was directly accrued via
bioanode compartment driven by in-situ generated bioelectricity. To this end, this protocol was imple-
mented with the anaerobic microbial as a biocatalyst in an anode chamber, as well as aerobic cathode
chamber and a Nafion117 membrane as a separator with attractive results for the BES. The findings of the
study suggested that BES, at the optimum operational conditions, can be an effective process for
removing the high concentrations of organic materials and ammonium from industrial wastewater. The
maximum BES efficiency was obtained 94% for the ammonium removal with a chemical oxygen demand
(COD) concentration of 10,000 mg/L and a maximum organic removal rate of 78% with a substrate
concentration of 2000 mg/L. The maximum voltage, power and current density of the BES was 481 mV,
62.7 mW/m2, 570mA/m2, respectively. Further, an increase in NH4Cl concentration improved the
maximum current density (808 mA/m2). The results demonstrated that the bio-electrochemical system
could be utilized to treat industrial wastewater, containing high amounts of ammonium and organic
materials, by adjusting the organic matter to ammonium (COD/NH4þ) ratio while simultaneously
generating electricity. Generally, the application of this eco-design, and sustainable bioanode material
can be a good foundation and new perspective for practical application with regards to green and sus-
tainable chemistr

Item Type: Article
Uncontrolled Keywords: Ammonium removal Bio-electrochemical system Power generation Wastewater treatment
Subjects: R Medicine > R Medicine (General)
Depositing User: Unnamed user with email gholipour.s@umsu.ac.ir
Date Deposited: 05 Jan 2020 05:32
Last Modified: 05 Jan 2020 05:32
URI: https://eprints.umsu.ac.ir/id/eprint/5718

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