title: F sorption/desorption on two soils and on different by-products and waste materials.
abstract: We used batch-type experiments to study F sorption/desorption on a forest soil, a vineyard soil, pyritic material, granitic material, finely and coarsely ground mussel shell, mussel shell calcination ash, oak wood ash, pine-sawdust, slate processing fines, and three different mixtures that included three components: sewage sludge, mussel shell ash, and calcined mussel shell or pine wood ash. The three waste mixtures, forest soil, pyritic material, and shell ash showed high sorption capacity (73-91 % of added F) and low desorption, even when 100 mg F L(-1) was added. All these materials (and to a lower extent wood ash) could be useful to remove F from polluted media (as certain soils, dumping sites, and contaminated waters). The vineyard soil, the granitic material, mussel shell, slate fines, and pine-sawdust were less effective in F removal. In most cases, sorption data fitted better to the Freundlich than to the Langmuir equation. These results can be useful to program the correct management of the soils, by-products, and waste materials assayed, mostly in situations where F concentrations are excessive and F removal should be promoted.
authors.affiliation: Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, Lugo, 27002, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Quintáns-Fondo
authors.affiliation: Center for Agricultural Sciences, State University of West Paraná, Marechal Cândido Rondon, Paraná, Brazil.
authors.forename: Gustavo
authors.initials: G
authors.lastname: Ferreira-Coelho
authors.affiliation: Department of Plant Biology and Soil Science, Faculty of Sciences, Campus Ourense, University of Vigo, Ourense, 32004, Spain.
authors.forename: Remigio
authors.initials: R
authors.lastname: Paradelo-Núñez
authors.affiliation: Department of Plant Biology and Soil Science, Faculty of Sciences, Campus Ourense, University of Vigo, Ourense, 32004, Spain.
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Nóvoa-Muñoz
authors.affiliation: Department of Plant Biology and Soil Science, Faculty of Sciences, Campus Ourense, University of Vigo, Ourense, 32004, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Arias-Estévez
authors.affiliation: Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, Lugo, 27002, Spain.
authors.forename: María J
authors.initials: MJ
authors.lastname: Fernández-Sanjurjo
authors.affiliation: Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, Lugo, 27002, Spain.
authors.forename: Esperanza
authors.initials: E
authors.lastname: Álvarez-Rodríguez
authors.affiliation: Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, Universidade de Santiago de Compostela, Lugo, 27002, Spain. avelino.nunez@usc.es.
authors.forename: Avelino
authors.initials: A
authors.lastname: Núñez-Delgado
mesh_terms: D000327:Adsorption; D000818:Animals; D049872:Bivalvia; D065928:Forests; D028223:Pinus / Q000737:chemistry; D012722:Sewage; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*; D014866:Waste Products; D014934:Wood / Q000737:chemistry
chemical_list: D012722:Sewage; D012987:Soil; D012989:Soil Pollutants; D014866:Waste Products
keywords: Adsorption; By-products; Desorption; Fluoride; Soils; Wastes