Journal
ENVIRONMENTAL TECHNOLOGY & INNOVATION
Volume 19, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.eti.2020.100997
Keywords
Aromatic hydrocarbons; Bioelectrochemical system; Microbial fuel cells; Electron transfer; Metal recovery
Funding
- National Research Foundation of Korea (NRF) - Korea government (Ministry of Science and ICT, MSIT) [NRF-2019M3E6A1103839]
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In recent years, bioelectrochemical hybrid technology has emerged as an alternative energy conversion device for bioelectricity generation with concurrent waste remediation. The major attractions of this bioelectrochemical technology are eco-friendly nature, energy-saving, and energy transformation with reduced sludge generation. A wide variety of substrates, including complex wastewater, can be employed as a potential substrate to operate the bioelectrochemical cells (BEC). Hence, microbial electro-remediation technologies are aimed towards the enhancement of the metabolic activity of electrochemically active biocatalyst by supplying organic/inorganic nutrients, electron acceptors, or donors, thus stimulating oxidation or reduction of contaminants. In this regard, BEC has gained much attention, in which the control environment is feasible by means of electrical current/voltage that serves as a donor or acceptor for hazardous waste remediation. In the present review, we mainly emphasize the developments and advancements of microbial electro-remediation technologies in the direction of complex hazardous waste remediation. We reviewed and discussed various BEC mediated complex pollutants remediation (ex: aromatics, dye, nitrogen compounds, heavy metals etc.) and its limitations. In conclusion, the future perspectives in the BEC for bioenergy generation with concurrent waste remediation are proposed through numerous aspects and approaches to afford clean energy and the environment. (c) 2020 Elsevier B.V. All rights reserved.
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