NickelMaghrebV1, Main, Exploration, bibRecord, 000184

Removal of heavy metals from aqueous solutions by Algerian bentonite

Identifieur interne : 000184 ( Main/Exploration ); précédent : 000183; suivant : 000185

Removal of heavy metals from aqueous solutions by Algerian bentonite

Auteurs : F. Mohammed-Azizi [Algérie] ; S. Dib [Algérie] ; M. Boufatit [Algérie]

Source :

Desalination and water treatment : (Print) [ 1944-3994 ] ; 2013.

RBID : Pascal:13-0265125

Descripteurs français

Pascal (Inist)
- Cuivre II Composé, Métal lourd, Epuration eau usée, Algérie, Bentonite, Argile, Eau usée industrielle, Epuration physicochimique, Cinétique, Zinc II Composé, Adsorption, Plomb II Composé, Adsorbant, Nickel II Composé, Microscopie électronique balayage, Aire surface spécifique, Caractérisation, Diffraction RX, Isotherme adsorption, Structure surface, Morphologie, Spectrométrie IR, Transformation Fourier, Propriété surface, FT IR.
Wicri :
- geographic : Algérie.
- topic : Métal lourd.

English descriptors

KwdEn :
- Adsorbent, Adsorption, Adsorption isotherm, Algeria, Bentonite, Characterization, Clay, Copper II Compounds, Fourier transformation, Heavy metal, Industrial waste water, Infrared spectrometry, Kinetics, Lead II Compounds, Morphology, Nickel II Compounds, Physicochemical purification, Scanning electron microscopy, Specific surface area, Surface properties, Surface structure, Waste water purification, X ray diffraction, Zinc II Compounds.

Abstract

This study aimed the removal of heavy metals by Algerian bentonite. An Algerian natural clay, a bentonite of Mostaganem (N.W. Algeria), has been first acid-activated (HCl) and characterized by powder X-ray diffraction, FT-IR spectroscopy, electron microscopy (SEM), and specific surface area. The acid-activated clay (AAC) was employed as adsorbent for the removal of Zn²⁺, Pb²⁺, Cu²⁺, and Ni²⁺ ions from aqueous solutions using adsorption method. The sorption process was examined in terms of its equilibrium and kinetics. The study was carried out by varying shaking time, pH, concentration of metal ions and amount of adsorbent. The optimum parameters of our study obtained were pH values range (4-6), mass of AAC (1 g), shaking time (1 h), and initial concentration of metal ions (10 mgL^-1). The results have shown that Algerian bentonite clay had significant potential for removing Zn²⁺, Pb²⁺, Cu²⁺, and Ni²⁺ ions from polluted water.

Affiliations:

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Le document en format XML

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<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Faculté de Chimie, Laboratoire d'Electrochimie-Corrosion, Métallurgie et Chimie Minérale, Université des Sciences et de la Technologie Houari Boumediène (U. S. T. H. B.), B.P.: 32, El-Alia, Bab-Ezzouar</s1>
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<term>Bentonite</term>
<term>Characterization</term>
<term>Clay</term>
<term>Copper II Compounds</term>
<term>Fourier transformation</term>
<term>Heavy metal</term>
<term>Industrial waste water</term>
<term>Infrared spectrometry</term>
<term>Kinetics</term>
<term>Lead II Compounds</term>
<term>Morphology</term>
<term>Nickel II Compounds</term>
<term>Physicochemical purification</term>
<term>Scanning electron microscopy</term>
<term>Specific surface area</term>
<term>Surface properties</term>
<term>Surface structure</term>
<term>Waste water purification</term>
<term>X ray diffraction</term>
<term>Zinc II Compounds</term>
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<term>Métal lourd</term>
<term>Epuration eau usée</term>
<term>Algérie</term>
<term>Bentonite</term>
<term>Argile</term>
<term>Eau usée industrielle</term>
<term>Epuration physicochimique</term>
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<term>Zinc II Composé</term>
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<term>Plomb II Composé</term>
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<term>Nickel II Composé</term>
<term>Microscopie électronique balayage</term>
<term>Aire surface spécifique</term>
<term>Caractérisation</term>
<term>Diffraction RX</term>
<term>Isotherme adsorption</term>
<term>Structure surface</term>
<term>Morphologie</term>
<term>Spectrométrie IR</term>
<term>Transformation Fourier</term>
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<front><div type="abstract" xml:lang="en">This study aimed the removal of heavy metals by Algerian bentonite. An Algerian natural clay, a bentonite of Mostaganem (N.W. Algeria), has been first acid-activated (HCl) and characterized by powder X-ray diffraction, FT-IR spectroscopy, electron microscopy (SEM), and specific surface area. The acid-activated clay (AAC) was employed as adsorbent for the removal of Zn<sup>2+</sup>
, Pb<sup>2+</sup>
, Cu<sup>2+</sup>
, and Ni<sup>2+</sup>
 ions from aqueous solutions using adsorption method. The sorption process was examined in terms of its equilibrium and kinetics. The study was carried out by varying shaking time, pH, concentration of metal ions and amount of adsorbent. The optimum parameters of our study obtained were pH values range (4-6), mass of AAC (1 g), shaking time (1 h), and initial concentration of metal ions (10 mgL<sup>-1</sup>
). The results have shown that Algerian bentonite clay had significant potential for removing Zn<sup>2+</sup>
, Pb<sup>2+</sup>
, Cu<sup>2+</sup>
, and Ni<sup>2+</sup>
 ions from polluted water.</div>
</front>
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<affiliations><list><country><li>Algérie</li>
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<settlement><li>Alger</li>
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<tree><country name="Algérie"><region name="Wilaya d'Alger"><name sortKey="Mohammed Azizi, F" sort="Mohammed Azizi, F" uniqKey="Mohammed Azizi F" first="F." last="Mohammed-Azizi">F. Mohammed-Azizi</name>
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<name sortKey="Boufatit, M" sort="Boufatit, M" uniqKey="Boufatit M" first="M." last="Boufatit">M. Boufatit</name>
<name sortKey="Dib, S" sort="Dib, S" uniqKey="Dib S" first="S." last="Dib">S. Dib</name>
</country>
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Removal of heavy metals from aqueous solutions by Algerian bentonite

Removal of heavy metals from aqueous solutions by Algerian bentonite

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri