Salt Recovery in Dyeing Bath

A. OVERVIEW

During the reactive dyeing of cotton, salts such as sodium chloride (NaCl) are placed in a dye bath to aid the exhaustion of various dyes onto the fabric while bases are added to raise the pH from around neutral to pH 11 to achieve fixation. Afterwards, the used dye bath solution, calle dye bath, is discharged with almost all the salts and bases added as well as unfixed dyes. Consequently many raw materials are lost in the waste stream ending up in the environment as pollutants. When the other Polluting Components are treated with different treatment techniques mentioned in this brochure, the salt remains same in the Effluent resulting in high TDS. The NaCl salt solution can be recovered for Re-use in Dyeing by using Nano filtration membrane system.

B. OUR SOLUTION FOR RECOVERY SALT SOLUTION

Panatech is the exclusive technology partner of Confident Engineering India Private Limited - a pioneer company in India in the field of water and wastewater treatment for more than 20 years. Not only that, we have successfully applied the Electro-Ionization process and nano filtration technology to businesses in the textile and dyeing industry around the world.

Benefits of our salt recovery technology:

• 98% pure NaCl solution is recovered from wastewater.

• Hardness less than 10 mg/L..

• Rapid repeatability of dyeing process due to stable salt solution.

• Enhanced repeatability of dyeing process due to stable salt solution.

Contact PANATECH now to consult and find the best solution for you!

PANATECH TECHNOLOGY JOINT STOCK COMPANY

Hotline: 028. 22000212

Address: 59 Street 3, An Khanh Ward, City. Thu Duc, City. HCM