Introduction:
The treatment and reclamation of textile dye wastewater pose significant challenges due to high COD and turbidity levels. A pilot test employing PolyCera Hydro ultrafiltration (UF) membrane was conducted in a textile mill to address these challenges and facilitate wastewater reclamation. This pilot test aimed to evaluate PolyCera membrane’s performance in treating textile dye wastewater and serving as pretreatment for reverse osmosis (RO) systems.
Background:
Textile dye wastewater typically contain high levels of COD and turbidity, necessitating effective treatment methods to meet regulatory standards. The PolyCera Hydro UF membrane offers a promising solution for treating and reclaiming textile dye wastewater while serving as pretreatment for RO systems.
Process Flow:
The treatment process involves several stages, including pretreatment, UF and RO, as illustrated in the following process flow diagrams:
Results:
The pilot test yielded promising results:
- The PolyCera Hydro UF membrane maintained a stable average flux of 70 LMH, with a transmembrane pressure of less than 1 bar and an 85% system recovery rate.
- The influent to PolyCera Hydro UF membrane had COD ~100 mg/L and turbidity ~20NTU. Filtrate produced by the membrane had turbidity levels < 1 NTU, indicating effective turbidity removal. The removal rate of COD was approximately 20%.
Value Proposition:
The use of PolyCera Hydro UF membrane offers several key advantages:
- Effective Flux Maintenance: The membrane system maintains stable flux even under challenging conditions, ensuring consistent and reliable operation.
- Turbidity and COD Removal: The membrane effectively removes turbidity and COD from textile dye wastewater, ensuring downstream RO membrane system stable operation.
- Chemical Enhanced Backwashing (CEB) Efficiency: CEB effectively restores flux without the need for Clean-in-Place (CIP) procedures, reducing maintenance requirements and operational costs.
- Sustainable Reclamation: Process utilizing PolyCera membrane facilitates the reclamation of textile dye wastewater, contributing to environmental sustainability and resource conservation.
Conclusion:
The pilot test demonstrates the effectiveness of PolyCera Hydro ultrafiltration membrane in treating and reclaiming textile dye wastewater while serving as pretreatment for reverse osmosis systems. By achieving stable flux maintenance, effective turbidity and COD removal, and sustainable reclamation, the membrane offers a promising solution for the textile dye industry’s wastewater treatment challenges.
Keywords
Textile dye wastewater, PolyCera Hydro ultrafiltration membrane, COD removal, Turbidity removal, Wastewater reclamation.
