Textile dyeing wastewater is among the most challenging industrial effluents due to high color, variable pH, and persistent organic pollutants.

Textile Wastewater Characteristics

• High color content (dyes)
• High COD: 500-5,000 mg/L
• Variable pH (often alkaline)
• Persistent organic compounds
• High temperature
• Variable flow and pollutant concentrations

Treatment Approach

Pre-Treatment

Equalization tank for flow and load balancing. pH adjustment and temperature reduction.

Coagulation-Flocculation

Chemical precipitation removes color and a portion of COD. Key for subsequent biological treatment.

Biological Treatment

Sequencing batch reactors or activated sludge for organic removal. May require adapted biomass for dye compounds.

Advanced Treatment

Fenton oxidation, ozone, or membrane filtration for color removal and water reuse.

Water Reuse Opportunities

• Rinse water recycling after appropriate treatment
• Process water for non-critical uses
• Zero liquid discharge (ZLD) systems for complete water recovery

Feiran EP Textile Solutions

We provide complete textile wastewater treatment systems meeting discharge and reuse standards.

Email: sale@yixingenviroequipment.com