Zeppilli, M., Simoni, M. orcid.org/0000-0001-5248-851X, Paiano, P. et al. (1 more author) (2019) Two-side cathode microbial electrolysis cell for nutrients recovery and biogas upgrading. Chemical Engineering Journal, 370. pp. 466-476. ISSN 1385-8947
Abstract
Here a three-chamber microbial electrolysis cell (MEC) has been developed to couple the CO2 removal from a gas mixture to the ammonium nitrogen recovery. The here proposed MEC adopted an innovative two-side cathode configuration, where two identic cathodic chambers are connected in parallel by a titanium wire and separated from an intermediate anodic compartment by an anion and a cation exchange membrane (AEM and CEM). The two-side configuration has been proposed as a post treatment unit capable to perform the biogas upgrading through the CO2 reduction and removal into the cathodic chambers as well as the ammonium recovery from a liquid waste stream due to its migration for the electroneutrality maintenance of the cell. The experiments have been conducted at two different anodic potential (i.e. +0.2 and −0.1 V vs Standard Hydrogen Electrode SHE), using a synthetic feeding solution and a gas mixture simulating a domestic wastewater and a biogas, respectively. The results obtained using the new configuration have been also compared to the performances reported in a previous work where a three – chamber MEC, characterized by the presence of an intermediate accumulation chamber, was aimed to the CO2 removal and to nitrogen recovery; this comparison highlighted higher performances of the two-side configuration in terms of methane production, CO2 removal and energy consumption, keeping the same anodic performances.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2019 Elsevier B.V. |
Keywords: | CO2 removal; Microbial electrolysis cell; Bioelectromethanogenesis; Nutrients recovery; Two-side cathode |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 06 Jan 2022 08:52 |
Last Modified: | 06 Jan 2022 08:52 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.cej.2019.03.119 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:181919 |