Buscar
Mostrando ítems 21-30 de 1034
Lability and sorption of heavy metals as related to chemical, physical, and mineralogical characteristics of highly weathered soils
(Journal of Soils and Sediments, 2018)
Sorption and Selectivity Sequences of Cd, Cu, Ni, Pb, and Zn in Single- and Multi-Component Systems in a Cultivated Chilean Mollisol
(TAYLOR & FRANCIS INC, 2010)
The heavy-metal sorption ability of soils is one of the most important factors that determine the fate of these contaminants in this medium of the biosphere. When heavy-metal containing soil amendments are land applied, a ...
Estudo da adsorção de chumbo II em lignina modificada a partir do resíduo do milho
(Universidade Tecnológica Federal do ParanáCampo MouraoBrasilDepartamento Acadêmico de AmbientalEngenharia AmbientalUTFPR, 2014-08-07)
The use of heavy metals, especially in the industrial sector, has attracted attention for the impacts generated by the use of potentially toxic metals to the environment and public health. Some species of heavy metals when ...
Study of adsorption and preconcentration by using a new silica organomodified with [3-(2,2′-dipyridylamine)propyl] groups
(2013-02-01)
In this work, a silica surface chemically modified with [3-(2,2′-dipyridylamine)propyl] groups, named [3-(2,2′- dipyridylamine)propyl]silica (Si-Pr-DPA) was prepared, characterized, and evaluated for its heavy metal ...
Study of adsorption and preconcentration by using a new silica organomodified with [3-(2,2′-dipyridylamine)propyl] groups
(2013-02-01)
In this work, a silica surface chemically modified with [3-(2,2′-dipyridylamine)propyl] groups, named [3-(2,2′- dipyridylamine)propyl]silica (Si-Pr-DPA) was prepared, characterized, and evaluated for its heavy metal ...
Carbon-based sorbets for heavy metal removal from aqueous solution, discrepancies, and future prospects: a state-of-the-art review
(Springer, 2021-08)
Heavy metal contamination is severely affecting human health and environment. These metals are known to exist naturally but the anthropogenic activities have contributed towards increasing their concentrations beyond ...
Study on soluble heavy metals with preconcentration by using a new modified oligosilsesquioxane sorbent
(Elsevier B.V., 2012-10-30)
In this work, a new modified oligosilsesquioxane was prepared, characterized and evaluated for its heavy metal adsorption characteristics from aqueous solution. The material was characterized using infrared spectroscopy, ...
Study on soluble heavy metals with preconcentration by using a new modified oligosilsesquioxane sorbent
(Elsevier B.V., 2012-10-30)
In this work, a new modified oligosilsesquioxane was prepared, characterized and evaluated for its heavy metal adsorption characteristics from aqueous solution. The material was characterized using infrared spectroscopy, ...
Synthesis, characterization and determination of the metal ions adsorption capacity of cellulose modified with p-aminobenzoic groups
(ABM, ABC, ABPol, 2004-06)
This paper describes the synthesis and characterization of p-aminobenzoic modified cellulose (Cell-PAB), as well as the separation and preconcentration of Cd(II), Cu(II), Ni(II), Pb(II) and Zn(II) ions from an aqueous ...
Simultaneous heavy metal removal mechanism by dead macrophytes
(Pergamon-Elsevier Science Ltd, 2006-01)
The use of dead, dried aquatic plants, for water removal of metals derived from industrial activities as a simple biosorbent material has been increasing in the last years. The mechanism of simultaneous metal removal (Cd2+, ...