Alternative utilization of skin wastes-preparation of a fe(III)-loaded adsorbent for anionic dyes in aqueous solution / Yu-Lu Wang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 5 (09-10/2006)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 90, N° 5 (09-10/2006) . - p. 205-210 Titre : Alternative utilization of skin wastes-preparation of a fe(III)-loaded adsorbent for anionic dyes in aqueous solution Type de document : texte imprimé Auteurs : Yu-Lu Wang, Auteur ; Liao Xue-Pin, Auteur ; Ying-Chun Gu, Auteur ; Shi-Lin Zhao, Auteur ; Bi Shi, Auteur Année de publication : 2006 Article en page(s) : p. 205-210 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbants et adsorbants Colorants -- Adsorption Colorants -- Elimination Colorants acides Cuirs et peaux -- Déchets -- Recyclage Fer Jaune Solutions aqueuses (chimie) Wet-white (tannage) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Fe(III)-loaded adsorbent (FLA) was prepared from waste wet-white. As a new adsorbent, its behaviour towards anionic dyes, Direct Yellow 11 (DY11) and Acid Yellow 11 (AY11), were investigated. It was found that the FLA is effective in removal of anionic dyes from aqueous solution and acidic pH favours the adsorption. The adsorption capacity of DY11 was significantly increased with an increase of temperature, whilst that of AY11 decreased, due to their difference in molecular structures. The maximum adsorption capacities of DY11 and AY11 at 323K were found to be 302.1 and 490.0 mg.g-1 respectively and the adsorption equilibrium data can be well fitted by the Langmuir model. The adsorption kinetics could be accurately described by a pseudo-second-order rate model. Investigation of column adsorption process indicated that FLA is effective in removal of AY11 from water, and the column can be regenerated by using dilute NH3 solution. Note de contenu : - EXPERIMENTAL SECTION : Materials - Methods - RESULTS AND DISCUSSION : Effect of initial pH on adsorption capacity - Effect of adsorbent dose on removal extent of dyes - Adsorption isotherms - Adsorption kinetics - Column adsorption kinetics - Table 1 : The Langmuir andFreundlich parameters of dyes on FLA at different temperatures - Table 2 : Adsorption kinetic model parameters of dyes on FLA En ligne : https://drive.google.com/file/d/1eIC6sbiqaeiyHpymGJ_mmT5jma51cL7U/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39058 [article]

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