DOW™ Ultrafiltration Modules High-Performance Solutions for Water Treatment
DOW™ Ultrafiltration Modules are advanced membrane-based systems engineered by Dow Water & Process Solutions to deliver reliable, high-purity water across industrial, municipal, and commercial applications. Built with hydrophilic modified polyvinylidene fluoride (H-PVDF) membrane filaments—known for exceptional chemical resistance and mechanical durability—these modules remove suspended solids, colloids, microorganisms (e.g., bacteria, viruses), and organic contaminants, making them a cornerstone of modern water purification workflows.
Aligned with industry needs outlined in the reference, DOW™ Ultrafiltration Modules serve critical roles, including:
Municipal Drinking Water: Purifying raw water to meet safety standards by eliminating turbidity and pathogens.
Industrial Pretreatment: Preparing feedwater for reverse osmosis (RO) systems in power plants (boiler feedwater), semiconductor manufacturing, and pharmaceutical production.
Wastewater Reuse: Recycling industrial/municipal wastewater for cooling towers, irrigation, or process rinse water.
Food & Beverage: Ensuring product quality by filtering water for bottling, beverage blending, and equipment sanitization.
| Parameter | Specification |
|---|
| Membrane Material | Hydrophilic modified PVDF (H-PVDF) |
| Filtration Precision | 0.01–0.1 μm (targets colloids, microbes) |
| Operating Temperature | 5–40°C (41–104°F) |
| pH Range (Operational) | 2–12 (compatible with cleaning chemicals) |
| Max Transmembrane Pressure (TMP) | 2.1 bar (30 psig) |
| Typical Permeate Flux | 15–30 L/m²·h (varies by model/feedwater) |
| Chemical Compatibility | Resistant to NaOCl, HCl, NaOH (per Dow guidelines) |
Superior Contaminant Removal: Achieves >99.99% removal of microorganisms and colloids, outperforming traditional filtration methods.
Long-Lasting Durability: H-PVDF membranes resist degradation from chemicals and mechanical stress, ensuring 3–5 years of service life.
Low Operational Costs: Automated backwashing and chemical enhanced backwash (CEB) reduce energy use and chemical consumption.
Flexible Integration: Fits seamlessly into existing water treatment systems (e.g., RO pretreatment) and adapts to variable feedwater conditions.
A1: Routine backwashing occurs every 20–60 minutes during operation. CEB is recommended every 1–7 days, while in-situ chemical cleaning (CIP) is required every 1–3 months (or if normalized TMP rises by 1.0 bar).
A2: Yes—with proper pretreatment (e.g., 5-μm cartridge filters), they efficiently process feedwater with turbidity up to 10 NTU, per Dow’s technical guidelines.
A3: Keep membranes wet; if shut down for >3 days, fill modules with a Dow-approved preservative solution to prevent irreversible drying damage.
Dow ensures optimal performance of DOW™ Ultrafiltration Modules with comprehensive after-sales services:
24/7 Technical Support: Reach experts via phone or email for troubleshooting.
Training: On-site/virtual training for operators on startup, cleaning, and performance monitoring.
Genuine Parts: Fast delivery of replacement membranes, O-rings, and cleaning chemicals.
Performance Audits: Annual system checks to optimize efficiency and extend module lifespan.
For water treatment facilities prioritizing reliability and purity, DOW™ Ultrafiltration Modules deliver industry-leading performance—backed by Dow’s global expertise in water solutions.
