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Type: Artigo de periódico
Title: Preparation and characterization of a Brazilian bentonite clay for removal of copper in porous beds
Author: Bertagnolli, C
Kleinuebing, SJ
da Silva, MGC
Abstract: The objective of this work focused on preparing and characterizing bentonite clay through thermal treatment in order to be applied in a porous bed for copper adsorption. Tests to obtain adsorbent physical and chemical characteristics were performed on natural clay samples, samples calcined at 400 and 500 degrees C, and calcined submitted to copper adsorption. This clay was characterized according to the following techniques: X-ray diffraction (XRD). Fourier transform infrared spectroscopy (FTIR), ethylene glycol monoethyl ether (EGME) method, N-2 physisorption (BET), helium pycnometry, mercury porosity, scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDX). A study was conducted to define the operation outflow, based on the minimum mass transfer zone (MTZ) obtained, useful (q(U)) and total (q(T)) adsorbed amounts, and total copper removal percentage (R (%)). (C) 2011 Elsevier B.V. All rights reserved.
Subject: Bentonite clay
Heavy metal
Dynamic adsorption
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.clay.2011.05.002
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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