Staff Publications

Staff Publications

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    '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 400219
Title Effect of mass and charge transport speed and direction in porous anodes on microbial electrolysis cell performance
Author(s) Sleutels, T.H.J.A.; Hamelers, H.V.M.; Buisman, C.J.N.
Source Bioresource Technology 102 (2011)1. - ISSN 0960-8524 - p. 399 - 403.
Department(s) Sub-department of Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) fuel-cells - biocatalyzed electrolysis - exchange membranes - electrical-current - ion-transport - waste-water - hydrogen - acetate - methane - systems
Abstract The use of porous electrodes like graphite felt as anode material has the potential of achieving high volumetric current densities. High volumetric current densities, however, may also lead to mass transport limitations within these porous materials. Therefore, in this study we investigated the mass and charge transport limitations by increasing the speed of the forced flow and changing the flow direction through the porous anode. Increase of the flow speed led to a decrease in current density when the flow was directed towards the membrane caused by an increase in anode resistance. Current density increased at higher flow speed when the flow was directed away from the membrane. This was caused by a decrease in transport resistance of ions through the membrane which increased the buffering effect of the system. Furthermore, the increase in flow speed led to an increase of the coulombic efficiency by 306%.
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