Research School for Socio-Economic and
Natural Sciences of the Environment
Research School for Socio-Economic and
Natural Sciences of the Environment

Leire Caizán Juanarena

Date: 14 June 2019
Time: 11:00 - 12:30
Location: Aula, building 362, Gen. Foulkesweg 1, Wageningen

Dissertation title: 

Granular activated carbon in capacitive microbial fuel cells

Group: Wageningen University, Environmental Technology
Promotors: C.J.N Buisman
Copromotors: A. ter Heijne

Extra information:


Wastewater represents a very suitable source of energy, as it contains organic compounds that need to be removed and can be converted into valuable products (e.g. methane, chemicals). In this context, Microbial Fuel Cell (MFC) is a sustainable and efficient technology to recover electricity from organics in wastewater, thus making profit from a treatment process. Microorganisms oxidize the organics (e.g. acetate) in the wastewater and produce electrons, which are then transferred from the anode to the cathode (i.e. current) by an external circuit, where a reduction reaction occurs. In this study, capacitive MFCs are studied as an alternative to classical MFCs. The main difference relies on the use of capacitive materials as electrodes that provide with a large (porous) surface area for the growth of biofilms and the storage of electrons in form of electrical double-layer (EDL). Thus, capacitive MFCs are able to harvest electricity but also to store it.

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