Details
| Original language | English |
|---|---|
| Pages (from-to) | 419-423 |
| Number of pages | 5 |
| Journal | Bioresource technology |
| Volume | 151 |
| Early online date | 23 Oct 2013 |
| Publication status | Published - Jan 2014 |
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.
Keywords
- Eutrophication, Lake sediments, Phosphorus, Sediment microbial fuel cell, Wastewater
ASJC Scopus subject areas
- Chemical Engineering(all)
- Bioengineering
- Environmental Science(all)
- Environmental Engineering
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Environmental Science(all)
- Waste Management and Disposal
Sustainable Development Goals
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In: Bioresource technology, Vol. 151, 01.2014, p. 419-423.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Impact of an external electron acceptor on phosphorus mobility between water and sediments
AU - Martins, G.
AU - Peixoto, L.
AU - Teodorescu, S.
AU - Parpot, P.
AU - Nogueira, R.
AU - Brito, A. G.
N1 - Funding Information: The authors are indebted and grateful to the Regional Department of Water Resources and Land Planning (Azores) and its staff. The authors also acknowledge the Grant SFRH/BPD/80528/2011 from the Foundation for Science and Technology, Portugal , awarded to Gilberto Martins.
PY - 2014/1
Y1 - 2014/1
N2 - 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.
AB - 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.
KW - Eutrophication
KW - Lake sediments
KW - Phosphorus
KW - Sediment microbial fuel cell
KW - Wastewater
UR - http://www.scopus.com/inward/record.url?scp=84897101961&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2013.10.048
DO - 10.1016/j.biortech.2013.10.048
M3 - Article
C2 - 24210650
AN - SCOPUS:84897101961
VL - 151
SP - 419
EP - 423
JO - Bioresource technology
JF - Bioresource technology
SN - 0960-8524
ER -