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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Glaucia Pantano, Francisco Wendel Batista de Aquino, Edenir Rodrigues Pereira-Filho, Antonio Aparecido Mozeto and Pedro Sergio Fadini
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DOI:10.17265/2162-5298/2017.11.002
Affiliation(s)
Chemistry Department, Federal University of São Carlos, São Carlos 13565-905, Brazil
ABSTRACT
The recovery of phosphorus in eutrophic water bodies is important to
ensure water and food security, phosphorus adsorption in sawdust can be
promoted by Fe(III) oxide-hydroxides biofilms. The main objective of this study
was to analyze the influence of iron addition in sawdust on phosphorus
adsorption. The microcosm experiment was performed with water and sediment
samples from a eutrophic reservoir located in Barra Bonita/SP. Three control
flasks (without bags) and 18 others as treatments (with two bags filled with
sawdust, with or without previous Fe(II) addition) were assembled. The addition
of iron did not promote greater phosphorus adsorption, the sawdust without previous iron addition had a total phosphorus
concentration of 49 μg∙P∙g-1, while the sawdust with previous iron
addition had 14.4 μg∙P∙g-1. The use of sawdust for the remediation
of eutrophic water bodies is interesting, especially considering the low-cost and possibility of reuse as
fertilizer in agriculture.
KEYWORDS
Phosphorus, eutrophication, remediation, biosorbent, iron.
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