Separators used in microbial electrochemical technologies: Current status and future prospects

Authors
Daud, Siti MariamKim, Byung HongGhasemi, MostafaDaud, Wan Ramli Wan
Issue Date
2015-11
Publisher
ELSEVIER SCI LTD
Citation
BIORESOURCE TECHNOLOGY, v.195, pp.170 - 179
Abstract
Microbial electrochemical technologies (METs) are emerging green processes producing useful products from renewable sources without causing environmental pollution and treating wastes. The separator, an important part of METs that greatly affects the latter's performance, is commonly made of Nafion proton exchange membrane (PEM). However, many problems have been identified associated with the Nafion PEM such as high cost of membrane, significant oxygen and substrate crossovers, and transport of cations other than protons protons and biofouling. A variety of materials have been offered as alternative separators such as ion-exchange membranes, salt bridges, glass fibers, composite membranes and porous materials. It has been claimed that low cost porous materials perform better than PEM. These include J-cloth, nylon filter, glass fiber mat, non-woven cloth, earthen pot and ceramics that enable non-ion selective charge transfer. This paper provides an up-to-date review on porous separators and plots directions for future studies. (C) 2015 Elsevier Ltd. All rights reserved.
Keywords
PROTON-EXCHANGE MEMBRANE; WASTE-WATER TREATMENT; FUEL-CELL MFC; ELECTRICITY-GENERATION; NANOCOMPOSITE MEMBRANES; INTERNAL RESISTANCE; POWER-GENERATION; PERFORMANCE; CATION; ENHANCEMENT; Microbial electrochemical technologies; Proton exchange membrane; Porous separator; Earthenware; Inorganic separator
ISSN
0960-8524
URI
https://pubs.kist.re.kr/handle/201004/124779
DOI
10.1016/j.biortech.2015.06.105
Appears in Collections:
KIST Article > 2015
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