Please use this identifier to cite or link to this item:
Title: Kinetics of the PO4-P adsorption onto soils and sediments from the Mondego estuary (Portugal)
Authors: Otero, M. 
Coelho, J. P. 
Rodrigues, E. T. 
Pardal, M. A. 
Santos, E. B. H. 
Esteves, V. I. 
Lillebo, A. I. 
Keywords: Eutrophication; Estuarine management; Phosphorus; Sorption; Kinetics; Modelling
Issue Date: 2013
Publisher: Elsevier Ltd.
Serial title, monograph or event: Marine Pollution Bulletin
Volume: 77
Issue: 1-2
Abstract: In order to assess the status of a North Atlantic Ocean Ecoregion (Mondego system, Portugal) after the implementation of a management programme, a study on PO4-P sorption was carried out. Considering that sorption velocity markedly determines the systems promptness to phosphorus external loading, the kinetics of the sorption of PO4-P onto estuarine sediments and the upstream agricultural soils was studied. The pseudo-second order kinetic equation gave an appropriate description of PO4-P sorption onto these soils and sediments, allowing for a quantitative comparison. For soils, the kinetic constants (k 2, lg 1 g h 1) ranged between 0.007 and 0.017 lg 1 g h 1 while, in the case of sediments these ranged between 0.008 and 0.012 lg 1 g h 1. Results showed that the reduction of water residence time after the management action was relevant for the system status, affecting its reaction capacity to phosphorus loading.
DOI: 10.1016/j.marpolbul.2013.08.039
Rights: openAccess
Appears in Collections:FCTUC Ciências da Vida - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
1-s2.0-S0025326X13005328-main(1).pdf739.62 kBAdobe PDFView/Open
Show full item record


checked on May 29, 2020


checked on Sep 14, 2020

Page view(s)

checked on Sep 23, 2020

Download(s) 50

checked on Sep 23, 2020

Google ScholarTM




Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.