| Titre : |
Mechanism of the influence of the fatliquor on the bio-decolourization of an azo dye |
| Type de document : |
texte imprimé |
| Auteurs : |
Li Yanchun, Auteur ; Zheng Liwen, Auteur ; Yulu Wang, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 163-171 |
| Note générale : |
Abbrev. - Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorants azoïques
Décoloration
Poly-3-hydroxybutyrate
Poly-B-hydroxybutyrate
Produits de nourriture du cuir
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
In the treatment of tannery wastewater, other chemical agents such as tannins and fatliquors may possibly have an influence on bio-decolourization of dyes, few researchers have addressed that problem. This paper reports how four kinds of commercial fatliquors influence the bio-decolourization of an azo dye (Acid Fuchsin 6B as the experimentat object) and expounds the mechanisms of these influence processes. it was obvious that the addition of sulfonated fatliquor and oxidized-sulfited fatliquor have improved the bio-decolourization activity of Acid Fuchsin 66, by contrary, the bio-decolourization of the dye has been stopped virtually by the addition of Lecithin based fatiguer and Phosphoric esters fatliquor. The paper used LC/MS to analyze and quantify metabolites of the dye in various substrates. The results certify that a stimulation of degradation products of these fatliquors on the breaking of the azo linkage contributes to the improvement of the bio-decolourization of the azo dye. And according to the correlation coefficient of the poly-?-hydroxybutyrate production with the residual concentrations of the dye, the inhibition of the fatliquors with phosphate groups on the bio-decolourization is directly due to the formation of the poly?-p-hydroxybutyrate. |
| Note de contenu : |
- EXPERIMENTAL DETAILS : Materials - Inoculum - Bio-decolourization of acid fuchsin 6B and biodegradation of the fatliquors
- ANALYTICAL METHODS
- RESULTS AND DISCUSSION : The bio-decolourization of acid fuchsin 6B using various fatliquors as the co-substrates - The mecanism of the improvement by the fatliquor to the biological decolourization - The inhibition mechanism of the fatliquor on the biological decolourization |
| En ligne : |
https://drive.google.com/file/d/1aBdd2k-VrWaSTOxOcAXUxL2fOFkMYz7Z/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24557 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 99, N° 4 (07-08/2015) . - p. 163-171
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