Back to Search
Start Over
Effects of ammonium concentration and charge exchange on ammonium recovery from high strength wastewater using a microbial fuel cell.
- Source :
-
Bioresource technology [Bioresour Technol] 2011 Mar; Vol. 102 (6), pp. 4376-82. Date of Electronic Publication: 2010 Dec 30. - Publication Year :
- 2011
-
Abstract
- Ammonium recovery using a two chamber microbial fuel cell (MFC) was investigated at high ammonium concentration. Increasing the ammonium concentration (from 0.07 to 4 g ammonium-nitrogen/L) by addition of ammonium chloride did not affect the performance of the MFC. The obtained current densities by DC-voltammetry were higher than 6A/m(2) for both operated MFCs. Also continuous operation at lower external resistance (250 Ω) showed an increased current density (0.9A/m(2)). Effective ammonium recovery can be achieved by migrational ion flux through the cation exchange membrane to the cathode chamber, driven by the electron production from degradation of organic substrate. The charge transport was proportional to the concentration of ions. Nonetheless, a concentration gradient will influence the charge transport. Furthermore, a charge exchange process can influence the charge transport and therefore the recovery of specific ions.<br /> (Copyright © 2010 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1873-2976
- Volume :
- 102
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Bioresource technology
- Publication Type :
- Academic Journal
- Accession number :
- 21277769
- Full Text :
- https://doi.org/10.1016/j.biortech.2010.12.085