Recycling of wastewaters of textile dyeing industries using advanced treatment technology and cost analysis—Case studies

K. Ranganathan, K. Karunagaran and D.C. Sharma

Resources, Conservation & Recycling, 2007, vol. 50, issue 3, 306-318

Abstract: Textile dyeing industries in Tirupur and Karur of Tamil Nadu (India) usually discharge effluents ranging between 80 and 200m3/t of production. Dyeing is performed either by conventional winch process or by advanced soft flow reactor process. Hypochlorite, the commonly used bleaching chemical is being gradually phased out by alkaline hydrogen peroxide solution that generates less effluent and fewer solids in the effluents. Coloring of yarn/cloth takes place in the presence of high concentration of sodium chloride or sodium sulphate (25–75kg/m3) in dye solutions. Dye bath wastewaters and wash waters are the process effluents of dyeing industry which are collected separately or together and follow the advanced treatment for maximum recycling of recovered waters.

Keywords: Dyeing industry; Wastewater recycling; Reverse osmosis; Membrane process; Nanofiltration (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:50:y:2007:i:3:p:306-318

DOI: 10.1016/j.resconrec.2006.06.004

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