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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Biosorption of macronutrients by Brazilian tropical peats

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Author(s):
Melo, Camila Almeida [1] ; de Oliveira, Lilian Karla [1] ; Fraceto, Leonardo Fernandes [1] ; Rosa, Andre Henrique [1]
Total Authors: 4
Affiliation:
[1] Univ Estadual Paulista, UNESP, Grp Estudos Ambientais, Dept Engn Ambiental, Sorocaba, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Communications in Soil Science and Plant Analysis; v. 49, n. 12, p. 1530-1539, 2018.
Web of Science Citations: 0
Abstract

The objective of this work was to evaluate the adsorption of macronutrients calcium, potassium, magnesium, nitrogen, and phosphorus in two Brazilian tropical peat samples, investigating the effect of pH and determining the kinetics of the adsorption process. Two different Brazilian tropical peat samples were characterized using FTIR, TG, and SEM techniques. Different pH conditions were tested, as well as different mass concentrations of the peats. Differences in the chemical structures of the peat samples directly influenced the adsorptive capacities for the macronutrients. The adsorptive capacity for nitrogen was highest at pH 3, while the best adsorption of calcium and potassium was obtained at pH 6. The best fit to the data was provided by the pseudo-second-order model, which confirmed the rapid adsorption of calcium by both peats. (AU)

FAPESP's process: 10/11570-4 - Development of polymeric spheres containing humic substances/peat: a new system for modified release of macro and micronutrients for soils
Grantee:André Henrique Rosa
Support type: Regular Research Grants
FAPESP's process: 10/12210-1 - EVALUATION OF THE USE HUMIC SUBTANCES/TURFS FOR MODIFIED RELEASE OF NUTRIENTS IN SOIL
Grantee:Camila de Almeida Melo
Support type: Scholarships in Brazil - Doctorate