TEXTILE INDUSTRY MEMBRANE PROCESSES

TEXTILE INDUSTRY MEMBRANE PROCESSES

Ceyka offers a wide variety of Ultrafiltration and Nanofiltration membrane systems suitable for various textile and paint applications.

In the process of adding dye to textile materials, large amounts of water, salt and chemicals are used to prevent and bind dyeing. Most of them create wastewater that needs to be treated before discharging into the environment and can be reused for production processes. Among these dyes, reactive dyes for cotton have raised ecological concern because the waste produced has high levels of BOD / COD and is typically heavily colored.

Nanofiltration membranes can be used to treat wastewater and aid in the concentration and recovery of unused synthetic dyes. Nanofiltration membranes can be used in conjunction with ultrafiltration membranes to remove excess salts and sulfites from waste before reuse. With nanofiltration membrane technology, desalting and dye concentration have become more and more popular among manufacturers who want to improve the quality of their products and reduce production costs. Typically it is desirable to reduce the salinity of the dye and can be achieved by diafiltration before concentrating the dye to the required value.

In addition, the pulp and paper industry requires the use of large amounts of clean water to process wood chips used for production. In case of discharge of toxic waste, harsh chemicals used to treat wood damage the environment. The use of membrane technology provides convenient recycling for reuse in the papermaking process and can save both time and money by minimizing the environmental impact.

Polyvinyl Alcohol Recovery

Polyvinyl Alcohol (PVA) is used in the textile industry during sizing to help smooth and strengthen fibers. PVA is highly valuable, but also highly toxic. The recovery and reuse of PVA from wastewater is valuable both financially and environmentally. By treating waste water using a nanofiltration membrane, PVA can be recovered and environmental pollution can be reduced.

Wastewater Treatment and Paint Concentration

Dyes are used extensively in the textile industry. Waste water produced from the dyeing process may contain salt, sulphide and dyes. The wide range of ultrafiltration and nanofiltration membranes can be used for wastewater treatment, color removal, and concentrated dyes removal. Also, Nanofiltration membrane can be applied for removal of salts and sulfites and dye concentration.