SALT RECOVERY FROM TEXTILE DYE BATH SOLUTION USING MEMBRANE TECHNOLOGY

Various salts such as Glauber's salt (sodium sulphate) and common salt (sodium chloride) are used in dyeing process to increase the affinity of the dye towards the Cellulosic substrate. It is used as an electrolyte for migration, adsorption and fixation of the dyestuff to the cellulose material. Dyeing process involves steps such as washing, rinsing, and drying and hence consumes large quantity of fresh water, energy, and chemicals which cause waste generation and environmental impact.

INDION Salt Recovery system from Textile dye bath effluent based on specialty NF membrane technology recovers brine for its reuse in dyeing process & recovers water to be recycled in various plant processes.

INDION specialty NF membrane system minimizes 60% - 80% of salt usage in dyeing process provides recycled water & reduces load on downstream ETP units with reduction in water consumption in dyeing process.