Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 551117
Title Electrochemical and microbiological characterization of single carbon granules in a multi-anode microbial fuel cell
Author(s) Caizán-Juanarena, Leire; Servin-Balderas, Ivonne; Chen, Xuan; Buisman, Cees J.N.; Heijne, Annemiek ter
Source Journal of Power Sources 435 (2019). - ISSN 0378-7753
DOI https://doi.org/10.1016/j.jpowsour.2019.04.042
Department(s) Environmental Technology
Biological Recovery & Re-use Technology
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2019
Keyword(s) Capacitive bioanode - Charge storage - Charge/discharge cycles - Granular activated carbon - Microbial community - Total nitrogen
Abstract

Capacitive microbial fuel cells (MFCs) use bacteria on a capacitive anode to oxidize organics in wastewater and simultaneously charge the electrode. This study aims to gain knowledge on the performance of single activated carbon (AC) granules, which are used as capacitive bioanodes. To this end, a multi-anode MFC that allows the testing of up to 29 granules under the same experimental conditions is used. 2 types of AC granules (PK and GAC) and 3 different size-ranges (n = 8 each) are studied in terms of current production, biomass quantification, microbial community and charge storage. Additionally, charge storage of PK granules (n = 24) is determined for different charging/discharging times. Results show that total produced charge directly relates to biomass amount, which has a linear relation towards granule outer surface area. Small AC granules have higher volumetric current densities, which could be of interest for their application in up-scaled reactors. PK granules show slightly higher biomass and current production than GAC granules, while these latter ones show larger volumetric charge storage capacity. Similarly, it is shown that short charging/discharging times are needed to obtain maximum charge storage and current output. These findings are of importance to design and operate MFCs with capacitive properties.

Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.