| Titre : |
Removal of Cr(VI) by emulsion membrane technology |
| Type de document : |
texte imprimé |
| Auteurs : |
Liu Anjun, Auteur ; Ding Shaolan, Auteur ; Zhao Chuanchuan, Auteur ; Ren Huijun, Auteur ; Zhao Quanyong, Auteur |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 52-58 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chrome hexavalent
Cuirs et peaux -- Industrie
Déchets industriels -- Elimination
Eaux usées -- Epuration
Emulsification
Extraction (chimie)
Membrane liquide en émulsion
pH -- Mesure
Surfactants
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
This article describes our study on the removal of Cr(VI) with the emulsion membrane formed from trioctylamine, secondary capryl alcohol and tributyl phosphate as carriers, Span-80 and Lan-113 as surfactants, and kerosene as the membrane solvent. Further, we have performed an orthogonal experiment regarding the carriers, surfactants for individual use and in combination. We also determined the way in which operational conditions, such as Roi, Rew, the internal and external phase pH values, emulsification mixing speed, time and waste/emulsion mixing rate affected the removal rate of Cr(VI). |
| Note de contenu : |
- EXPERIMENTAL PROCEDURES : Reagents, instruments and equipment
- RESULTS AND DISCUSSION : Selection and determination of the emulsion liquid membrane system - Carriers - Extracting mechanism of extractants - Surfactant concentration and types - Liquid volume rate in emulsion liquid (Voil/Vwi) - oil internal ratio Roi - Emulsification stirring speed and time - Extraction stirring/rotating speed - Extraction time - External phase pH values - NaOH concentration of internal water phase - Vw/o/Vwe -
- Table 1 : L27(313) orthoganol experimental design - the factors and levels table
- Table 2 : L18(37) orthoganol experimental design - the factors and levels table
- Table 3 : L25(56) orthoganol experimental design - the factors and levels table |
| En ligne : |
This article describes our study on the removal of Cr(VI) with the emulsion memb [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39033 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 91, N° 2 (03-04/2007) . - p. 52-58
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Removal of Cr(VI) by emulsion membrane technology in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 2 (03-04/2007)
