Projects

Wastewater Treatment of a Certain Dyeing and Printing Factory in Zhejiang（MBR+UF）

• Influent Water Source

Wastewater Discharged from a Dyeing and Printing Factory Processing Cotton, Linen, Chemical Fibers, and Their Blended Products

Wastewater Treatment by Besta membrane Company

• Characteristics of the Water Source

The composition of pollutants is highly complex, with significant variations in water quality

The organic matter content is high

The color is intense (mainly due to colored dyes)

• Process Flow

   Hydrolysis and Acidification + Aerobic Treatment + High-Efficiency Decolorization +MBR  Filtration + Activated Carbon + UF (Ultrafiltration) Device

• Final Result

Color Reduction: Decolorization and activated carbon make the water clearer.

COD and BOD Reduction: Treatment removes organic pollutants and lowers COD/BOD.

Suspended Solids Removal: MBR Filtration and UF membranes clear the water.

Microbial Removal: UF membranes filter out bacteria and viruses.

Odor and Harmful Substance Removal: Activated carbon removes odors and harmful substances.

Meets Standards: The treated water meets discharge or reuse standards.

• Summary

This wastewater treatment process involves a series of steps ranging from chemical degradation to physical separation, aimed at effectively removing harmful substances from dyeing and printing wastewater. The products and equipment involved include:

• Acidifying agents and reaction tanks(for hydrolysis and acidification)
• Aeration equipment and biological reactors(for aerobic treatment)
• Chemical flocculants and membrane filtration devices(for high-efficiency decolorization)
• Sand filters and bag filters(for filtration)
• Activated carbon(for organic matter adsorption)
• UF membrane devices(for fine filtration)

This combination of multiple treatment processes ensures that various pollutants in the wastewater, especially dyes and organic contaminants, are effectively removed, meeting environmental discharge standards.