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High sorption of reactive dyes onto cotton controlled by chemical potential gradient for reduction of dyeing effluents.
Mu, Bingnan; Liu, Linyun; Li, Wei; Yang, Yiqi.
Afiliación
  • Mu B; Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE, 68583-0802, United States. Electronic address: bingnan.mu@huskers.unl.edu.
  • Liu L; Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, 214122, China.
  • Li W; Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE, 68583-0802, United States.
  • Yang Y; Department of Textiles, Merchandising and Fashion Design, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE, 68583-0802, United States; Department of Biological Systems Engineering, 234, HECO Building, University of Nebraska-Lincoln, Lincoln, NE, 68583-0802, United States; Nebraska Cen
J Environ Manage ; 239: 271-278, 2019 Jun 01.
Article en En | MEDLINE | ID: mdl-30903839
This research uses soybean oil/water dual-phase solvents system (SWDS) to achieve high dye fixation as well as minimal discharge of waste effluents. Reactive dyeings are one of the most serious pollution sources and few dyeing technologies developed could successfully reduce the generation of toxic substances without decreasing dyeing qualities. Through a remarkable increase in chemical potential of dyes in dyeing medium, SWDS remarkably increased the dye concentration in the internal solvent phase. As a result, % exhaustion of dye was 100%, and % fixation of dye was up to 92% in SWDS. Final discharges of dyes and salts from SWDS were decreased by 85% and 100%, respectively, compared to that from the conventional aqueous system. More than 99.5% of initially added biodegradable soybean oil could be recycled for reactive dyeing without treatments. Furthermore, SWDS could be readily applied in jet-dyeing machines on a pilot scale. Via the reuse of soybean oil, SWDS could save up to $0.26 per kg of fabric compared to aqueous dyeings in terms of materials cost.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fibra de Algodón / Colorantes Idioma: En Revista: J Environ Manage Año: 2019 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fibra de Algodón / Colorantes Idioma: En Revista: J Environ Manage Año: 2019 Tipo del documento: Article Pais de publicación: Reino Unido