Impact of an external electron acceptor on phosphorus mobility between water and sediments
- authored by
- G. Martins, L. Peixoto, S. Teodorescu, P. Parpot, R. Nogueira, A. G. Brito
- Abstract
The present work assessed the impact of an external electron acceptor on phosphorus fluxes between water and sediment interface. Microcosm experiments simulating a sediment microbial fuel cell (SMFC) were carried out and phosphorus was extracted by an optimized combination of three methods. Despite the low voltage recorded, ~96mV (SMFC with carbon paper anode) and ~146mV (SMFC with stainless steel scourer anode), corresponding to a power density of 1.15 and 0.13mW/m2, it was enough to produce an increase in the amounts of metal bound phosphorus (14% vs 11%), Ca-bound phosphorus (26% vs 23%), and refractory phosphorus (33% vs 28%). These results indicate an important role of electroactive bacteria in the phosphorus cycling and open a new perspective for preventing metal bound phosphorus dissolution from sediments.
- Organisation(s)
-
Institute of Sanitary Engineering and Waste Management
- External Organisation(s)
-
University of Minho
Valahia University of Targoviste
- Type
- Article
- Journal
- Bioresource technology
- Volume
- 151
- Pages
- 419-423
- No. of pages
- 5
- ISSN
- 0960-8524
- Publication date
- 01.2014
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Bioengineering, Environmental Engineering, Renewable Energy, Sustainability and the Environment, Waste Management and Disposal
- Sustainable Development Goals
- SDG 7 - Affordable and Clean Energy
- Electronic version(s)
-
https://doi.org/10.1016/j.biortech.2013.10.048 (Access:
Closed)
https://hdl.handle.net/1822/27764 (Access: Open)
