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A reductive approach to colour removal of textile wastewaters

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dc.contributor.author BERTEA, A.
dc.contributor.author BERTEA, A. P.
dc.date.accessioned 2019-08-09T09:52:54Z
dc.date.available 2019-08-09T09:52:54Z
dc.date.issued 2005
dc.identifier.citation BERTEA, A., BERTEA, A. P. A reductive approach to colour removal of textile wastewaters. In: Meridian Ingineresc. 2005, nr. 1, pp. 29-31. ISSN 1683-853X. en_US
dc.identifier.issn 1683-853X
dc.identifier.uri http://repository.utm.md/handle/5014/4163
dc.description.abstract The paper presents a study of the capability of 3 dyes, a direct, an acid and a reactive dye, to be transformed into uncolored substances using sodium dithionite. It has been found that in some special cases, the use of sodium dithionite may represent a solution for the color removal of the textile wastewater. The results depend heavily on the pH value, and the needed dithionite concentration is relatively low, depending of the dyestuff concentration. The influence of the temperature is important, and this is why on site treatment being highly recommended. en_US
dc.description.abstract În lucrare se studiază măsura în care soluţiile a trei coloranţi, unul direct, unul acid şi unul reactiv, pot fi decolorate folosind ditionit. Rezultatele au evidenţiat faptul că această metodă de decolorare poate fi utilă în anumite situaţii speciale. Gradul de decolorare depinde în mare măsură de valoarea pH-ului, iar concentraţia necesară de ditionit este în general scăzută, în funcţie de concentraţia soluţiei de colorant. Influenţa temperaturii este majoră, motiv pentru care tratamentul on site este recomandat. ro
dc.description.abstract Le papier présente une étude de la capacité de 3 colorants, un direct, un acide et un réactive, d’être décolorées en utilisant le dithionite de sodium. On a trouvé que dans quelques cas de spécial, l'usage de dithionite de sodium peut représenter une solution pour l'enlèvement de la couleur des eaux usées textile. Les résultats dépendent lourdement sur la valeur de pH, et la concentration de dithionite nécessaire est relativement basse, dépendant de la concentration du colorant. L'influence de la température est importante, et ceci est pourquoi le traitement on site est extrêmement recommandé. fr
dc.description.abstract В работе исследуются меры, при которых раствор трех красителей, один прямой, другой кислотный и третий реактивный, могут быть обесцвечены, используя дитионит. Полученные результаты выявили факт, что этот метод обесцвечивания может быть полезной в определенных специальных ситуациях. Степень обесцвечивания зависит в большей степени от значения pH, а необходимая концентрация дитионита в общем низкая и зависит от концентрации раствора красителя. Влияние температуры большое, в связи с чем рекомендуется обработка on site. ru
dc.language.iso en en_US
dc.publisher Editura U.T.M. en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject sodium dithionite en_US
dc.subject textile wastewaters en_US
dc.subject wastewaters en_US
dc.subject ditionit en_US
dc.subject ape uzate textile en_US
dc.title A reductive approach to colour removal of textile wastewaters en_US
dc.title.alternative Decolorare reductivă a apelor uzate textile en_US
dc.title.alternative Une approche réductrice pour l'enlèvement de la couleur d'eaux usées textile en_US
dc.title.alternative Редуктивное обесцвечивание текстильных сточных вод en_US
dc.type Article en_US


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