Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/27764
Título: | Impact of an external electron acceptor on phosphorus mobility between water and sediments |
Autor(es): | Martins, Gilberto Peixoto, L. Teodorescu, S. Parpot, Pier Nogueira, R. Brito, A. G. |
Palavras-chave: | Lake sediments Eutrophication Wastewater Phosphorus Sediment microbial fuel cell |
Data: | Jan-2014 |
Editora: | Elsevier 1 |
Revista: | Bioresource Technology |
Resumo(s): | The present work assessed the impact of an external electron acceptor on phosphorus fluxes between water-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, ∼96 mV (SMFC with carbon paper anode) and ∼146 mV (SMFC with stainless steel scourer anode), corresponding to a power density of 1.15 mW/m2 and 0.13 mW/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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/27764 |
DOI: | 10.1016/j.biortech.2013.10.048 |
ISSN: | 0960-8524 |
e-ISSN: | 0960-8524 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |