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Pecan nutshell as biosorbent to remove Cu(II), Mn(II) and Pb(II) from aqueous solutions

Vaghetti, Julio C.P. ; Lima, Eder C. ; Royer, Betina ; da Cunha, Bruna M. ; Cardoso, Natali F. ; Brasil, Jorge L. ; Dias, Silvio L.P.

Journal of hazardous materials, 2009-02, Vol.162 (1), p.270-280 [Periódico revisado por pares]

Kidlington: Elsevier B.V

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Título:
Pecan nutshell as biosorbent to remove Cu(II), Mn(II) and Pb(II) from aqueous solutions
Autor: Vaghetti, Julio C.P. ; Lima, Eder C. ; Royer, Betina ; da Cunha, Bruna M. ; Cardoso, Natali F. ; Brasil, Jorge L. ; Dias, Silvio L.P.
Assuntos: Adsorption ; Adsorption kinetic ; Agriculture, rearing and food industries wastes ; Applied sciences ; Biological and medical sciences ; Biosorption ; Biotechnology ; Carya - chemistry ; Carya illinoensis ; Chemical engineering ; Copper - isolation & purification ; Divalent metallic ion ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; Hydrogen-Ion Concentration ; Kinetics ; Lead - isolation & purification ; Manganese - isolation & purification ; Methods. Procedures. Technologies ; Microscopy, Electron, Scanning ; Models, Statistical ; Non-linear fitting ; Others ; Pecan nutshell ; Pollution ; Solutions ; Spectroscopy, Fourier Transform Infrared ; Thermodynamics ; Various methods and equipments ; Wastes ; Water
É parte de: Journal of hazardous materials, 2009-02, Vol.162 (1), p.270-280
Notas: ObjectType-Article-1
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Descrição: In the present study we reported for the first time the feasibility of pecan nutshell (PNS, Carya illinoensis) as an alternative biosorbent to remove Cu(II), Mn(II) and Pb(II) metallic ions from aqueous solutions. The ability of PNS to remove the metallic ions was investigated by using batch biosorption procedure. The effects such as, pH, biosorbent dosage on the adsorption capacities of PNS were studied. Four kinetic models were tested, being the adsorption kinetics better fitted to fractionary-order kinetic model. Besides that, the kinetic data were also fitted to intra-particle diffusion model, presenting three linear regions, indicating that the kinetics of adsorption should follow multiple sorption rates. The equilibrium data were fitted to Langmuir, Freundlich, Sips and Redlich–Peterson isotherm models. Taking into account a statistical error function, the data were best fitted to Sips isotherm model. The maximum biosorption capacities of PNS were 1.35, 1.78 and 0.946 mmol g −1 for Cu(II), Mn(II) and Pb(II), respectively.
Editor: Kidlington: Elsevier B.V
Idioma: Inglês

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Pecan nutshell as biosorbent to remove Cu(II), Mn(II) and Pb(II) from aqueous solutions

Vaghetti, Julio C.P. ; Lima, Eder C. ; Royer, Betina ; da Cunha, Bruna M. ; Cardoso, Natali F. ; Brasil, Jorge L. ; Dias, Silvio L.P.

Kidlington: Elsevier B.V

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