Wastewater Treatment in the Textile Industry
The textile industry is an intensive producer of wastewater. Due to the vast range of production and finishing processes, highly specific technologies are employed for low-energy wastewater treatment.
Water is needed in many production steps, both when manufacturing yarns and fabrics and during textile finishing. The wastewater produced during these processes contains a very diverse range of chemicals and dyes. This is because textile production makes use of several thousand different substances, ranging from solvents to resins and from caustic soda to bleach. During rinsing, which is necessary after many of the process steps, it is impossible to completely avoid some measure of the substances used ending up in the wastewater.
This makes wastewater treatment a necessity. Each individual factory requires a facility specifically designed for the production processes in question. Different techniques are required, depending on the quantity of wastewater and the type of pollution. Problematic substances must be reliably removed from the wastewater before it can be discharged into municipal wastewater systems or surface waters.