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Improved hydrogen gas production in microbial electrolysis cells using inexpensive recycled carbon fibre fabrics

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Carlotta-Jones, Daniel Indiana, Purdy, Kevin J., Kirwan, Kerry, Stratford, James P. and Coles, Stuart R. (2020) Improved hydrogen gas production in microbial electrolysis cells using inexpensive recycled carbon fibre fabrics. Bioresource Technology, 304 . 122983. doi:10.1016/j.biortech.2020.122983 ISSN 0960-8524.

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Official URL: http://dx.doi.org/10.1016/j.biortech.2020.122983

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Abstract

Growing energy demands of wastewater treatment have made it vital for water companies to develop less energy intensive processes for treating wastewater if net zero emissions are to be achieved by 2050. Microbial electrolysis cells (MECs) have the potential to do this by treating water and producing renewable hydrogen gas as a product, but capital and operational costs have slowed their deployment. By using recycled carbon fibre mats, commercially viable MECs can brought closer to reality, where recycled carbon fibre anode MECs treating real wastewater (normalised ~3100 L d−1) were producing 66.77 L H2 d−1 while graphite felt anode MECs produced 3.65 L H2 d−1 per 1 m3 reactor, anodes costing £5.53 m−2 and £88.36 m−2 respectively, resulting in a total anode cost saving of 93%. This could incentivise the development of larger pilot systems, opening the door for generating greater value and a more sustainable wastewater treatment industry.

Item Type: Journal Article
Subjects: T Technology > TD Environmental technology. Sanitary engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TP Chemical technology
Divisions: Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- )
Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Sewage disposal plants, Sewage disposal plants -- Efficiency, Microbial fuel cells , Hydrogen—Biotechnology
Journal or Publication Title: Bioresource Technology
Publisher: Elsevier BV
ISSN: 0960-8524
Official Date: May 2020
Dates:
DateEvent
May 2020Published
11 February 2020Available
7 February 2020Accepted
Volume: 304
Article Number: 122983
DOI: 10.1016/j.biortech.2020.122983
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 25 February 2020
Date of first compliant Open Access: 28 February 2020
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/L016389/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
UNSPECIFIEDSevern Trent Water Authorityhttp://viaf.org/viaf/129867026

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