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50 Years of Environmental Monitoring at Henkel / T. Wind in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 3/2008 (05-06/2008)
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Titre : 50 Years of Environmental Monitoring at Henkel Type de document : texte imprimé Auteurs : T. Wind, Auteur ; J. Steber, Auteur ; J. Tolls, Auteur Année de publication : 2008 Article en page(s) : p. 144-152 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cours d'eau -- Salubrité
Eaux usées -- Epuration
Environnement -- Surveillance
SurfactantsIndex. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The gradually increasing detergents consumption in Germany since 1950 resulted in higher emissions of their ingredients to the environment. The first generation of mineral oil-based surfactants, tetrapropylene benzene sulfonate (TPS), exhibited poor biodegradability and caused public environmental concerns. These prompted Henkel in 1958 to start a systematic measurement of some main detergent constituents in the river Rhine in Germany. Since then, a number of monitoring activities regarding the determination of detergent ingredients concentrations and freights in rivers and waste water treatment plants (WWTP) followed. This paper summarizes 50 years experience at Henkel in monitoring of detergent ingredients in the aquatic environment. The long-term monitoring results on the river Rhine provides an impressive record of the development of the environmental burden by surfactant emissions and of the gradual improvement of river water quality over time. The reasons for the changes are discussed. Further monitoring activities on WWTPs have shown for the first time, that domestic wastewater treatment plants (DWTP) are similarly suitable for the removal of surfactants like municipal ones. The good removal of prominent organic detergent ingredients was shown by several time-proportional sampling campaigns in municipal WWTPs. Finally the positive impact of the modernisation of a municipal WWTP on the chemical and biological water quality on a small river creek is reported over the time period of 7 years. All of the reported studies indicate a low environmental burden due to the use of detergents ingredients today. The learnings from the different activities in environmental monitoring by Henkel have contributed to a solid understanding of the fate of detergent ingredients in the environment. This in turn was the prerequisite for development of reliable exposure prediction models. Today, Henkel employs both, environmental monitoring and modeling instruments, for assessing the environmental exposure of chemicals. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3048
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 45, N° 3/2008 (05-06/2008) . - p. 144-152[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010305 - Périodique Bibliothèque principale Documentaires Disponible Adsorption, biosorption and bioaccumulation used to remove chromium (III) from tanning wastewaters : A critical review / B. H. Hintermeyer in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 97, N° 6 (11-12/2013)
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Titre : Adsorption, biosorption and bioaccumulation used to remove chromium (III) from tanning wastewaters : A critical review Type de document : texte imprimé Auteurs : B. H. Hintermeyer, Auteur ; E. L. Tavani, Auteur Année de publication : 2013 Article en page(s) : p. 231-237 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbants et adsorbants
Adsorption
Bioaccumulation
Biosorption
Champignons microscopiques
Chrome trivalent
Déchets industriels -- Elimination
Eaux usées -- Décontamination
Eaux usées -- Epuration
Eaux usées -- Recyclage
Microorganismes
Séparation (technologie)Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Processes of adsorption, biosorption and bioaccumulation were analyzed considering their ability to remove chromium(III). Already published studies that represent the actual state of knowledge were taken into account for this purpose. The review includes a detailed description of principal physicochemical properties of adsorbents, biosorbents and micro-organisms, pointing out those features that explain the mechanism by which the separation occurs. We noted an inadequate evaluation of the bearing species of the tanning agent with respect to treated solutions and that, not always the most adequate species was selected. In order to elucidate both aspects, the way in which the electrical charge and the size of studied complex ions affect the attraction force in adsorption/biosorption were examined. The consideration of such parameters proved that the electrical charge varies enormously from one substance to another and besides it prevails on the size. Accordingly, it was decided to focus attention only on treatments that were performed with tanning wastewater or with basic chromium(III) sulphate. Finally, the amounts of chromium(III) sequestered per gram of each adsorbent/biomaterial were compared. The largest uptake was 189.1mg/g, obtained with a Cr-resistant autochthonous fungus. Note de contenu : - Organic adsorbents
- Electric charge and size of chromium (III) bearing species
- Amount of chromium (III) retained by each adsorbentEn ligne : https://drive.google.com/file/d/1qmrD9Zv-_GzouZpxAndkHY9xXn5JrH_S/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20144
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 97, N° 6 (11-12/2013) . - p. 231-237[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15837 - Périodique Bibliothèque principale Documentaires Disponible Adsorption equilibrium studies of a simulated textile effluent containing a wool reactive dye on gallinaceous feathers / Olga M. Freitas in COLORATION TECHNOLOGY, Vol. 132, N° 5 (10/2016)
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Titre : Adsorption equilibrium studies of a simulated textile effluent containing a wool reactive dye on gallinaceous feathers Type de document : texte imprimé Auteurs : Olga M. Freitas, Auteur ; Lilita M. Moura, Auteur ; Sonia A. Figueiredo, Auteur ; Maria T. Pessoa de Amorim, Auteur Année de publication : 2016 Article en page(s) : p. 421-430 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbants et adsorbants
Colorants -- Adsorption
Colorants réactifs
Déchets -- Valorisation
Eaux usées -- Analyse
Eaux usées -- Epuration
PlumesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Gallinaceous feathers (from Gallus gallus domesticus, strains Cobb 500 and Label) were used as adsorbent for colour removal from a simulated textile effluent containing a wool reactive dye, the Yellow Lanasol 4G (CI Reactive Yellow 39). A brief chemical and physical characterisation of feathers was performed. Equilibrium studies at different selected temperatures, in the range 10–60 °C, were carried out. The equilibrium data were analysed using the Freundlich and Langmuir isotherm models. Adsorption capacity strongly increases with temperature. A maximum adsorption capacity of around 300 mg g?1 was obtained for Gallus gallus feathers, strain Cobb 500, at 60 °C, while for strain Label, 200 mg g?1 was obtained at 50 °C. For each type of feather a generalised model, valid for a given temperature range, was obtained. The isosteric heat of adsorption calculated was positive, so the mechanism involved in the adsorption process should correspond to endothermic chemisorption. This study provides important information concerning the use of gallinaceous feathers without any chemical treatment for colour removal from real textile wastewaters. The results in this study indicated that gallinaceous feathers, when compared with activated carbon, open promising perspectives concerning their utilisation for colour removal from textile effluent discharged at high temperatures; moreover, it would be an alternative for the valorisation of this waste. Note de contenu : - MATERIALS AND METHODS : Adsorbents and characterisation - Dyestuff and simulated dyebath effluent preparation - Kinetic tests - Equilibrium tests - Analytical control of pH and dyestuff concentration
- RESULTS AND DISCUSSION : Adsorbent characterisation- Adsorbent : feather of Gallus gallus Cobb 500 - Adsorbent : feathers of Gallus gallus Label - Comparison of Gallus gallus Cobb 500 and label feathers - Comparison of Gallus gallus label feathers with other feathersDOI : 10.1111/cote.12234 En ligne : https://drive.google.com/file/d/1sNRLvUPiOtpVcHPET3d6hrm2crLR-93X/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27234
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Code-barres Cote Support Localisation Section Disponibilité 18353 - Périodique Bibliothèque principale Documentaires Disponible Adsorption of a spent reactive dyebath by a chitosan bed : study of water reuse, bed regeneration, and UV/Fenton oxidation / Chunhui Li in COLORATION TECHNOLOGY, Vol. 130, N° 2 (04/2014)
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Titre : Adsorption of a spent reactive dyebath by a chitosan bed : study of water reuse, bed regeneration, and UV/Fenton oxidation Type de document : texte imprimé Auteurs : Chunhui Li, Auteur ; Jinxin He, Auteur Année de publication : 2014 Article en page(s) : p. 93-101 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bains de teinture -- Epuration
ChitosaneLe chitosane ou chitosan est un polyoside composé de la distribution aléatoire de D-glucosamine liée en ß-(1-4) (unité désacétylée) et de N-acétyl-D-glucosamine (unité acétylée). Il est produit par désacétylation chimique (en milieu alcalin) ou enzymatique de la chitine, le composant de l'exosquelette des arthropodes (crustacés) ou de l'endosquelette des céphalopodes (calmars...) ou encore de la paroi des champignons. Cette matière première est déminéralisée par traitement à l'acide chlorhydrique, puis déprotéinée en présence de soude ou de potasse et enfin décolorée grâce à un agent oxydant. Le degré d'acétylation (DA) est le pourcentage d'unités acétylées par rapport au nombre d'unités totales, il peut être déterminé par spectroscopie infrarouge à transformée de Fourier (IR-TF) ou par un titrage par une base forte. La frontière entre chitosane et chitine correspond à un DA de 50 % : en deçà le composé est nommé chitosane, au-delà , chitine. Le chitosane est soluble en milieu acide contrairement à la chitine qui est insoluble. Il est important de faire la distinction entre le degré d'acétylation (DA) et le degré de déacétylation (DD). L'un étant l'inverse de l'autre c'est-à -dire que du chitosane ayant un DD de 85 %, possède 15 % de groupements acétyles et 85 % de groupements amines sur ses chaînes.
Le chitosane est biodégradable et biocompatible (notamment hémocompatible). Il est également bactériostatique et fongistatique.
Le chitosane est également utilisé pour le traitement des eaux usées par filtration ainsi que dans divers domaines comme la cosmétique, la diététique et la médecine.
Colorants -- Adsorption
Colorants réactifs
Eaux usées -- Epuration
Eaux usées -- Recyclage
Fenton, Réaction de
Photo-oxydation
Photodétérioration
Rayonnement ultraviolet
Sulfate de sodiumLe sulfate de sodium est un composé chimique courant formé d'un ion sulfate et de deux ions sodium. Lorsqu'il est anhydre, il prend l'apparence d'un solide cristallin blanc de formule chimique Na2SO4. La forme déca-hydratée, Na2SO4·10H2O, est connue sous le nom de sel de Glauber ou mirabilite. Parmi un grand nombre d'usages différents, les principales utilisations du sulfate de sodium concernent la fabrication des détergents et dans le procédé de Kraft de traitement de la pâte à papier. La moitié environ de la production mondiale provient de l'extraction de la forme naturelle décahydratée, et l'autre moitié de productions secondaires dans des procédés de l'industrie chimique.Index. décimale : 667.3 Teinture et impression des tissus Résumé : In the present paper, a facile process combining chitosan bed adsorption and the UV/Fenton advanced oxidation process for treatment and reuse of spent reactive dyebath waste has been developed. The chitosan bed was very effective in decolouring spent reactive dyebath waste by adsorption enrichment of CI Reactive Red 195, and the water and sodium sulphate there in could easily permeate through the chitosan bed and then be recycled. Although the resulting recycled dyebaths were used 10 times as reconstituted dyebaths for dyeing with CI Reactive Red 195, the colour difference and the relative unlevelness index changes of the dyed samples still remained within acceptable levels. That was also true for CI Reactive Blue 19 in the 11th recycling cycle. As a result, an average saving of 60.4% and 93.4% for water and sodium sulphate, respectively, was achieved with the reuse process for the 11 dyebaths. The exhausted chitosan bed can be regenerated three times by dilute alkali without any significant sacrifice of adsorbability or mass. Emissions of the elution concentrates generated from three regeneration runs of the chitosan bed and then treated by UV/Fenton oxidation were found to meet the most stringent emission standards for both chemical oxygen demand and colour in China. Results reveal that the process combining chitosan bed adsorption and UV/Fenton advanced oxidation is promising for treatment and reuse of spent reactive dyebath waste, which can potentially benefit the environment and reduce operating costs. Note de contenu : - EXPERIMENTAL : Materials - Water reuse - Dye oxidation - Parameters to evaluate CAAOP
- RESULTS AND DISCUSSION : Water reuse - Dye oxidation - Water recovery and dosage of salt in recycling cycles - Economic analysisDOI : 10.1111/cote.12077 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12077 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20864
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Code-barres Cote Support Localisation Section Disponibilité 16129 - Périodique Bibliothèque principale Documentaires Disponible Adsorption properties of acid dye on amine-terminated dendritic polymer / Qiang Taotao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 3 (05-06/2017)
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Titre : Adsorption properties of acid dye on amine-terminated dendritic polymer Type de document : texte imprimé Auteurs : Qiang Taotao, Auteur ; Zhao Jing, Auteur ; Bu Qiaoqiao, Auteur ; Ren Longfang, Auteur Année de publication : 2017 Article en page(s) : p. 112-122 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbants et adsorbants
Colorants -- Adsorption
Colorants acides
Eaux usées -- Epuration
Polymères -- Synthèse
Polymères à terminaison amine
Polymères dendritiquesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A series of amine-terminated dendritic polymers (ADPs) were synthesized by stepwise substitution reaction and were used as an adsorbent for removal of acid black dye NT from aqueous solution. Comparison experiments showed that the ADP-3 has good adsorption effect. Then, the effects of various parameters such as initial acid black dye NT concentration (50-300mg/L) and solution pH(1.5- 6.5) were investigated. The point of zero charge (PZC) of ADP-3 has been determined. Specific surface area and average adsorption pore size of the ADP-3 were 21.378m2/g and 3.833nm, respectively. Field scanning electron microscopy (FESEM) indicated that the adsorption material has porous structure, which provided favorable conditions for adsorption process. The experimental data were analyzed by Langmuir and Freundlich models of adsorption. Equilibrium data were fitted well with the Freundlich model. Thermodynamics parameters, ?G, ?H and ?S indicate that the adsorption of acid black dye NT onto ADPs were spontaneous and endothermic process in nature. Pseudo-first-order and pseudo-second-order kinetic models vvere used to fit the adsorption kinetic data. The adsorption kinetics was found to follow the pseudo-first-order kinetic model. Amino blocking indicated that the amine content plays an important role in the adsorption process. The adsorbent was also applied to the treatment of leather dye effluent, the results showed that ADP-3 exhibit a prominent adsorption property on leather dye effluent. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials and instruments - Preparation of ADP - Contrast experiments - Characterisation of products - Adsorption experiments - Adsorption mechanism - Adsorption application in leather dye effluent
- RESULTS AND DISCUSSION : Amino contents - Contrast experiments results - The point of zero charge (PZC) of ADP-3 - Instrument characterization - Adsorption experiment results - Adsorption kinetics - Adsorption mechanism - Adsorption application in leather dye effluentEn ligne : https://drive.google.com/file/d/1Tixq7ruz2XOqaidv26cg77Xmq-D4t0cL/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28795
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 3 (05-06/2017) . - p. 112-122[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19049 - Périodique Bibliothèque principale Documentaires Disponible Adsorption removal of Brilliant green and Safranin-O contaminants from water using a hydrogel based on carboxymethyl cellulose and sodium alginate crosslinked by epichlorohydrin / Khushbu in COLORATION TECHNOLOGY, Vol. 139, N° 4 (08/2023)
PermalinkAdvances in microbial remediation for heavy metal treatment: a mini review in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
PermalinkAlternative process for recovery of chrome(III)-effluents / Jaime Cot in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 4 (07-08/2008)
PermalinkAlternative treatments for footwear industry liquid effluents - Part 1 - Classical approach in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 3 (05-06/2002)
PermalinkAlternative treatments for footwear industry liquid effluents - Part 2 - Pressure wet oxygen oxidation / M. J. Ferreira in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 3 (05-06/2002)
PermalinkAlternative treatments for footwear industry liquid effluents - Part 3 - Pressure wet hydrogen peroxide / M. J. Ferreira in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 4 (07-08/2002)
PermalinkAn integrated approach for the treatment of vegetable tannins wastewaters / Balaraman Madhan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 1 (01-02/2005)
PermalinkApplication of artificial intelligence techniques in textile wastewater decolorisation fields : A systematic and citation network analysis review / Senbiao Liu in COLORATION TECHNOLOGY, Vol. 138, N° 2 (04/2022)
PermalinkApplication of Mn-doped mesoporous TiO2 in tannery wastewater treatment / Xiu He in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 6 (11-12/2019)
PermalinkAswan clay as sorbent for removal of Cr(III) and Cr(VI) from synthetic solution and tannery wastewater / O. A. Mohamed in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 5 (09-10/2005)
PermalinkAutomated determination of linear alkylbenzene sulphonate (LAS) in wastewater treatment plants effluents using on line solid-phase extraction followed by HPLC with fluorescence detection / C. Crey-Desbiolles in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 6/2009 (11-12/2009)
PermalinkBioaccumulation of chromium(III) from aqueous solutions of a leather wastewater treatment plant by Saccharomyces cerevisiae yeast / Patrizia Jankovic in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 11 (11/2020)
PermalinkBiosorption of chromium from spent semi-chrome liquor : Part 1 - Effective pollution abatement using bacillus cerus / Saranya Kailasam in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVI, N° 11 (11/2021)
PermalinkBiosorption of lac dye by the red marine alga Gracilaria tenuistipitata: biosorption kinetics, isotherms, and thermodynamic parameters / Montra Chairat in COLORATION TECHNOLOGY, Vol. 132, N° 6 (12/2016)
PermalinkBiotransformation of CI acid blue 113 and other dyes by shewanella sp. P6 / Sunil Biala in COLORATION TECHNOLOGY, Vol. 129, N° 5 (10/2013)
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