Application of Bioelectrochemical Systems and Anaerobic Additives in Wastewater Treatment: A Conceptual Review

Overview

Journal Int J Mol Sci

Publisher MDPI

Specialties Biochemistry
Chemistry
Molecular Biology

Date 2023 Mar 11

PMID 36902185

Authors

Nhlanganiso Ivan Madondo

Sudesh Rathilal

Babatunde Femi Bakare

Emmanuel Kweinor Tetteh

Affiliations

Soon will be listed here.

Abstract

The interspecies electron transfer (IET) between microbes and archaea is the key to how the anaerobic digestion process performs. However, renewable energy technology that utilizes the application of a bioelectrochemical system together with anaerobic additives such as magnetite-nanoparticles can promote both direct interspecies electron transfer (DIET) as well as indirect interspecies electron transfer (IIET). This has several advantages, including higher removal of toxic pollutants present in municipal wastewater, higher biomass to renewable energy conversion, and greater electrochemical efficiencies. This review explores the synergistic influence of bioelectrochemical systems and anaerobic additives on the anaerobic digestion of complex substrates such as sewage sludge. The review discussions present the mechanisms and limitations of the conventional anaerobic digestion process. In addition, the applicability of additives in syntrophic, metabolic, catalytic, enzymatic, and cation exchange activities of the anaerobic digestion process are highlighted. The synergistic effect of bio-additives and operational factors of the bioelectrochemical system is explored. It is elucidated that a bioelectrochemical system coupled with nanomaterial additives can increase biogas-methane potential compared to anaerobic digestion. Therefore, the prospects of a bioelectrochemical system for wastewater require research attention.

Citing Articles

Utilizing a FeO Magnetite Nanoparticle for Anode Modification in a Microbial Desalination Cell to Treat Saltwater.

Singh S, Kumar A, Pandit S, Roy A, Lahiri D, Alghamdi S Appl Biochem Biotechnol. 2024; 196(11):7861-7876.

PMID: 38573532 DOI: 10.1007/s12010-024-04925-3.

Effect of Electrode Spacing on the Performance of a Membrane-Less Microbial Fuel Cell with Magnetite as an Additive.

Madondo N, Rathilal S, Bakare B, Tetteh E Molecules. 2023; 28(6).

PMID: 36985825 PMC: 10058918. DOI: 10.3390/molecules28062853.

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