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Assessment of water management in tanneries / Patrice Monteiro de Aquim in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 6 (11-12/2010)
[article]
Titre : Assessment of water management in tanneries Type de document : texte imprimé Auteurs : Patrice Monteiro de Aquim, Auteur ; Mariliz Gutterres, Auteur ; Jorge Trierweiler, Auteur Année de publication : 2010 Article en page(s) : p. 253-258 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eaux usées -- Analyse
Gestion des ressources en eau
Tannage
Tannage -- Aspect de l'environnementIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Assessment of water management in tanneries --- This study evaluates the use of water in processing hides into leather. It investigates the environmental impact on water resources of tanneries in Rio Grande do Sul State, evaluating the water demand and concentrations of certain chemicals in the wastewater discharged from the beamhouse, tanning and retanning processes of this industry.
A questionnaire was formulated which was intended to identify water management problems in tanneries, and the possible alternatives available to tanneries aiming at their improvement. A simple and objective application called IRGO (insufficient, regular, good and optimal was developed. The IRGO was applied to 10 tanneries. After completing the questionnaire, the tanneries could check how removed they are from an ideal tannery and ascertain which actions must be taken to improve their performance.
The results showed that there is a large demand for water in the process and little water is re-used. The most conventional liming process employs sulphide, lime and amine and recycling is already applied to this operation in the state. The steps of washing, deliming and the float itself use large quantities of water, although the majority of the tanneries do not use ammonia in deliming. The tanning procedure most used employs chrome III without recycling. In relation to retanning, studies need to be carried out aiming to increase the efficiency of the absorption of chemicals. The wastewater treatment plants are satisfactory due to the requirements of the environmental organizations.En ligne : https://drive.google.com/file/d/1FfVgVeI6OIap-Jj61pjuYIU02rdssLx3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10811
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 94, N° 6 (11-12/2010) . - p. 253-258[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012670 - Périodique Bibliothèque principale Documentaires Disponible Removal of anionic dye from tannery wastewater using peanut shell waste as a biosorbent / Samantha Feron de Moraes in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 1 (01/2023)
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Titre : Removal of anionic dye from tannery wastewater using peanut shell waste as a biosorbent Type de document : texte imprimé Auteurs : Samantha Feron de Moraes, Auteur ; Patrice Monteiro de Aquim, Auteur ; Bethania Brochier, Auteur ; Amanda Gonçalves Kieling, Auteur ; Everton Hansen, Auteur Année de publication : 2023 Article en page(s) : p. 42 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Absorbants et adsorbants
Caractérisation
Colorants -- Elimination
Colorants acides
Coque d'arachide
Cuir synthétique
Eaux usées -- Analyse
Eaux usées -- Epuration
Eaux usées -- Teneur en colorants
Essais (technologie)
StatistiqueIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Contamination of water bodies by organic substances, such as dyes, cause impacts on the environment and human health. Furthermore, the search for environmentally appropriate destinations for solid waste, such as those from agro-industries, has been intensifying, to minimize the impact of the growing generation of waste as a result of population growth. Thus, this work aimed to evaluate the use of raw peanut shells as an alternative adsorbent for the removal of Brown acid dye from synthetic leather dyeing wastewater. The peanut shells were milled and sieved. The material was characterized by Fourier Transform Infrared Spectroscopy. The parameters evaluated in the adsorption tests were pH, contact time, and mass of adsorbent material. The maximum adsorption capacity verified for the peanut shell was 7.753 mg/g and up to 93% of the dye was removed. The best adsorption conditions were at pH 2.5, 10 minutes, and adsorbent mass of 0.3 g in 50 mL of effluent. The results showed relevant removal of the Brown acid dye by the peanut shells’ adsorbent material. Note de contenu : - EXPERIMENTAL : Preparation of peanut shells - Analysis of peanut shells by Fourier Transform Infrared spectroscopy - Preparation of synthetic wastewater containing dye - Adsorption experiments - Statistical analysis
- RESULTS AND DISCUSSION : Analysis of peanut shells by Fourier Transform Infrared spectroscopy - Adsorption experiments
- Table 1 : Removal efficiency and sorption capacity of dyes by peanut shellDOI : https://doi.org/10.34314/jalca.v118i1.6414 En ligne : https://drive.google.com/file/d/1_W8sxqmpNw3ySEwGZPgzZjYt_hY9Ph-K/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39163
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVIII, N° 1 (01/2023) . - p. 42[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24007 - Périodique Bibliothèque principale Documentaires Disponible