Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/173173
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ribot Bermejo, Miquel | - |
dc.contributor.author | Martí Roca, Eugènia | - |
dc.contributor.author | Schiller Calle, Daniel von | - |
dc.contributor.author | Sabater i Comas, Francesc | - |
dc.contributor.author | Daims, Holger | - |
dc.contributor.author | Battin, Tom J. | - |
dc.date.accessioned | 2021-01-15T16:45:40Z | - |
dc.date.available | 2021-01-15T16:45:40Z | - |
dc.date.issued | 2012 | - |
dc.identifier.issn | 2161-9549 | - |
dc.identifier.uri | http://hdl.handle.net/2445/173173 | - |
dc.description.abstract | We investigated how dissolved inorganic N (DIN) inputs from a wastewater treatment plant (WWTP) effluent are processed biogeochemically by the receiving stream. We examined longitudinal patterns of NH4+ and NO3− concentrations and their 15N signatures along a stream reach downstream of a WWTP. We compared the δ15N signatures of epilithic biofilms with those of DIN to assess the role of stream biofilms in N processing. We analyzed the δ15N signatures of biofilms coating light- and dark-side surfaces of cobbles separately to test whether light constrains functioning of biofilm communities. We sampled during 2 contrasting periods of the year (winter and summer) to explore whether changes in environmental conditions affected N biogeochemical processes. The study reach had a remarkable capacity for transformation and removal of DIN, but the magnitude and relevance of different biogeochemical pathways of N processing differed between seasons. In winter, assimilation and nitrification influenced downstream N fluxes. These processes were spatially segregated at the microhabitat scale, as indicated by a significant difference in the δ15N signature of light- and dark-side biofilms, a result suggesting that nitrification was mostly associated with dark-side biofilms. In summer, N processing was intensified, and denitrification became an important N removal pathway. The δ15N signatures of the light- and dark-side biofilms were similar, a result suggesting less spatial segregation of N cycling processes at this microhabitat scale. Collectively, our results highlight the capacity of WWTP-influenced streams to transform and remove WWTP-derived N inputs and indicate the active role of biofilms in these in-stream processes. | - |
dc.format.extent | 13 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | The University of Chicago Press | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1899/11-161.1 | - |
dc.relation.ispartof | Freshwater Science, 2012, vol. 31, num. 4, p. 1057-1069 | - |
dc.relation.uri | https://doi.org/10.1899/11-161.1 | - |
dc.rights | (c) The Society for Freshwater Science, 2012 | - |
dc.source | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) | - |
dc.subject.classification | Nitrogen | - |
dc.subject.classification | Tractament biològic de depuració d'aigües residuals | - |
dc.subject.other | Nitrogen | - |
dc.subject.other | Biological treatment of sewage | - |
dc.title | Nitrogen processing and the role of epilithic biofilms downstream of a wastewater treatment plant | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 633489 | - |
dc.date.updated | 2021-01-15T16:45:40Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
633489.pdf | 456.48 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.