| Titre : |
Adsorptive removal of As(V) from aqueous solution by Zr(IV)-loaded skin shavings |
| Type de document : |
texte imprimé |
| Auteurs : |
Jiao Limin, Auteur ; Xuepin Liao, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2009 |
| Article en page(s) : |
p. 308-315 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Absorbants et adsorbants
Arsenic
Cuirs et peaux -- Déchets
Cuirs et peaux de porcs
Déchets -- Elimination
Isotherme d'adsorption
Solutions aqueuses (chimie)
Wet-white (tannage)
Zirconium
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Wet-white shavings are one of the main solid wastes produced in the leather industry. In this paper, Zirconium (IV)-loaded adsorbent (ZrLA) was prepared by using wet-white shavings as the supporting matrix. The fundamental adsorption behaviors of this new adsorbent for arsenic [As(V)] were investigated. It was found that the adsorption capacity of ZrLA for As(V) in aqueous solution was 60.90 mg-g-1, when the initial concentration of As(V) was 75.0 mg. L-1 at pH 4.0 and the dosage of ZrLA was 1.0 g.L-1. The initial pH of As(V) solution significantly affected adsorption capacity of ZrLA to As(V) and the optimal pH for adsorption was in the range of 3.0-6.0. The adsorption isotherms of As(V) could be well fitted by the Langmuir equation, and the maximum adsorption capacities calculated by the Langmuir equation were close to those determined by experiments. The adsorption kinetics of As(V) on ZrLA could be satisfactorily described by the pseudo-second-order rate model. The adsorption capacity was increased with the increase of the zirconium content in ZrLA, and the highest adsorption capacity was obtained when zirconium content of ZrLA was 90-110 mg.g-1. |
| Note de contenu : |
- EXPERIMENTAL METHODS : Materials - Preparation of Zr(IV)-loaded absorbent based on wet-white shavings - Preparation of As(V) stock solution - Effect of initial pH on adsorption capacity of ZrLA to As(V) - Adsorption isotherms - Effect of zirconium content in ZrLA on adsorption capacity - Adsorption kinetics
- RESULTS AND DISCUSSION : Effect of initial pH on adsorption capacity of ZrLA to As(V) - Adsorption isotherm - Effect of the zirconium content in ZrLA on As(V) adsorption - Adsorption kinetics |
| En ligne : |
https://drive.google.com/file/d/1UEbM9mmPakXpBVSI8vBe0FL-y0wo2W29/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17835 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIV, N° 9 (09/2009) . - p. 308-315
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Adsorptive removal of As(V) from aqueous solution by Zr(IV)-loaded skin shavings in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 9 (09/2009)
