Journal
ENVIRONMENTAL RESEARCH
Volume 229, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.envres.2023.115843
Keywords
Bioelectrochemical systems; Wastewater treatment; Energy production; Fuel production
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Wastewater treatment using bioelectrochemical systems (BESs) has diverse applications, including renewable energy production, environmental pollution reduction, biosensors, and bioelectrosynthesis. This review article critically discusses the challenges and advances in bio-electrochemical studies in the 21st century, focusing on the structure, performance, and application of BESs such as Microbial Fuel Cells (MFCs), Microbial Electrolysis Cells (MECs), and Microbial Desalination Cells (MDCs). The review highlights the impact of various parameters on treatment processes and energy/fuel production, aiming to guide future studies and promote the practical application of BESs in achieving sustainable development.
Wastewater treatment using bioelectrochemical systems (BESs) can be considered as a technology finding application in versatile areas such as for renewable energy production and simultaneous reducing environmental problems, biosensors, and bioelectrosynthesis. This review paper reports and critically discusses the challenges, and advances in bio-electrochemical studies in the 21st century. To sum and critically analyze the strides of the last 20+ years on the topic, this study first provides a comprehensive analysis on the structure, performance, and application of BESs, which include Microbial Fuel Cells (MFCs), Microbial Electrolysis Cells (MECs) and Microbial Desalination Cells (MDCs). We focus on the effect of various parameters, such as electroactive microbial community structure, electrode material, configuration of bioreactors, anode unit volume, membrane type, initial COD, co-substrates and the nature of the input wastewater in treatment process and the amount of energy and fuel production, with the purpose of showcasing the modes of operation as a guide for future studies. The results of this review show that the BES have great potential in reducing environmental pollution, purifying saltwater, and producing energy and fuel. At a larger scale, it aspires to facilitate the path of achieving sustainable development and practical application of BES in real-world scenarios.
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