Accueil
Détail de l'auteur
Auteur Jesùs Beltrà n-Heredia |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Azo dye removal by Moringa oleifera seed extract coagulation / Jesùs Beltrà n-Heredia in COLORATION TECHNOLOGY, Vol. 124, N° 5 (2008)
[article]
Titre : Azo dye removal by Moringa oleifera seed extract coagulation Type de document : texte imprimé Auteurs : Jesùs Beltrà n-Heredia, Auteur ; Jesùs Sà nchez Martin, Auteur Année de publication : 2009 Article en page(s) : p. 310-317 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this paper, the ability of Moringa oleifera seed extract–among other natural coagulants–to remove several different types of dyes has been researched. Moringa oleifera has been demonstrated to have a high removal ability for anionic dyes. This study is particularly focused on testing the removal of an azo dye such as Chicago Sky Blue 6B (CSB). It has taken out the fast kinetic of coagulant action and the high potential of this coagulant agent to treat wastewater from dyestuff. Up to 99 % of CSB removal has been achieved with M. oleifera extract dosage of 150, 200 and 250 mg-1 for 100, 160 and 200 mg l-1 of initial CSB concentration, respectively. Temperature does not affect the coagulant process and a pH level greater than 8 has a negative influence. Lower CSB percentage removal is achieved by increasing the initial dye concentration, but an optimum relationship between dye amount removed and M. oleifera extract amount has been established and it appears to be between 0.7 and 0.9, depending on the initial dye concentration and the bulk of the remaining dye concentration. DOI : 10.1111/j.1478-4408.2008.00158.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2008.00158.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3179
in COLORATION TECHNOLOGY > Vol. 124, N° 5 (2008) . - p. 310-317[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 010965 - Périodique Bibliothèque principale Documentaires Disponible Removal of Erioglaucine (Acid Blue 9) with a new coagulant agent from Acacia mearnsii tannin extract / Jesùs Sà nchez Martin in COLORATION TECHNOLOGY, Vol. 128, N° 1 (2012)
[article]
Titre : Removal of Erioglaucine (Acid Blue 9) with a new coagulant agent from Acacia mearnsii tannin extract Type de document : texte imprimé Auteurs : Jesùs Sà nchez Martin, Auteur ; Jesùs Beltrà n-Heredia, Auteur ; Teresa RodrÃguez-Sánchez, Auteur Année de publication : 2012 Article en page(s) : p. 15-20 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acacia et constituants
Biopolymères
Erioglaucine
Polymérisation
Précipitation (chimie)
Tanins végétaux
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : A new coagulant obtained through the polymerisation of Acacia mearnsii de Wild. tannin extract has been characterised in the removal of a dangerous dye pollutant: Erioglaucine (also called Acid Blue 9 or FD&C Blue 1). This coagulant was laboratory synthesised according to the etherification of tannins using glycidyltrimethylammonium chloride and formaldehyde and its performance in dye removal in terms of efficiency was high. Reasonably low coagulant dosages (ca. 50 mg l−1) reach high capacity levels (approximately 0.7 mg dye mg−1 of coagulant) and pH and temperature are not extremely affecting variables. A design of experiments using response surface methodology led to the evaluation of the influence of parameters such as coagulant dosage and initial dye concentration, and reliable data were collected in order to maximise the removal capacity. The whole coagulant-dye system was successfully modelled by applying the Langmuir hypothesis. Parameters qmax and b were obtained with an adjusted correlation factor (r2) above 0.8. Note de contenu : - EXPERIMENTAL : Coagulant syntheses - Buffered solution - Model compounds - General dyes removal trials - Mathematical and statistical procedures
- RESULTS AND DISCUSSION : Preliminary screening on dye removal - Preliminary screening on dye removal - Operative factors - Design of experiments - Theoretical modellingDOI : 10.1111/j.1478-4408.2011.00342.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00342.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13092
in COLORATION TECHNOLOGY > Vol. 128, N° 1 (2012) . - p. 15-20[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 13529 - Périodique Bibliothèque principale Documentaires Disponible