SFD 2880

Summary

Product identification

DOW™ Ultrafiltration (UF) Modules, Models SFP-2880 and SFD-2880, are designed with high-strength, hollow fiber membranes.

Key features include:

• 0.03 µm nominal pore diameter for removal of bacteria, viruses, and particulates, including colloids.
• PVDF polymeric hollow fibers for high strength and chemical resistance.
• Hydrophilic PVDF fibers for easy cleaning and wettability.
• Outside In flow configuration for high tolerance to feed solids.
• U-PVC housing, eliminating the need for costly pressure vessels.

These modules are suitable for systems with capacities greater than 50 m³/hr (220 gpm). They feature an 8-inch diameter and 80-inch length, with an increased packing density of 10,000 fibers, offering the highest effective membrane area among DOW™ Ultrafiltration modules.

Applications include surface water, seawater, industrial wastewaters, and secondary effluent wastewater.

Models and Part Numbers

• SFP-2880: Pretreatment, Part # 280934
• SFD-2880: NSF/ANSI 61 Drinking water, Part # 324169

Product Specifications

• Membrane area: 77 m² (829 ft²)
• Module volume: 39 Liters (10.3 Gallons)
• Weight (empty/water filled): 61/100 Kg (135/220 lbs)

Mechanical / hydraulic

Dimensions

• Length (L): 2360 mm (92.9 inch)
• Length (L1): 2000 mm (78.7 inch)
• Length (L2): 2130 mm (83.9 inch)
• Length (L3): 2320 mm (91.3 inch)
• Diameter (D): 225 mm (8.9 inch)
• Width (W1): 180 mm (7.1 inch)
• Width (W2): 342 mm (13.5 inch)

Flow Configuration

• Outside in, dead end flow

Operating limits

• Filtrate Flux @ 25ºC: 40-120 l/m²/hr (24-70 gfd)
• Flow range: 3.1-9.3 m³/hr (13.6 – 40.9 gpm)
• Temperature: 1-40ºC (34-104ºF)
• Max. inlet module pressure (@ 20ºC): 6.25 bar (93.75 psi)
• Max. operating TMP: 2.1 bar (30 psi)
• Max operating air scour flow: 12 nm³/hr (7.1 scfm)
• Max backwash pressure: 2.5 bar (36 psi)
• Operating pH: 2-11
• NaOCl (max.): 2,000 mg/L
• TSS (max.): 100 mg/L
• Turbidity (max.): 300 NTU
• Particle size (max.): 300 µ

Product water

• Expected filtrate turbidity: ≤0.1 NTU
• Expected filtrate SDI: ≤2.5

General Information

Proper start-up of a UF system is essential to prepare membranes for operating service and prevent damage. This includes membrane pretreatment, module installation, instrument calibration, and other system checks. Refer to the product technical manual for detailed procedures.

Operation guidelines:

• Avoid abrupt pressure variations during start-up, shutdown, or cleaning.
• Flush the UF system to remove shipping solution prior to start-up.
• Remove residual air from the system prior to start-up.
• Manually start the equipment.
• Target a permeate flow of 60% of design during initial operations.
• Depending on the application, permeate obtained from initial operations should be discarded.

To prevent biological growth during system shutdowns, injecting a preservative solution into the membrane modules is recommended. NSF/ANSI 61 certified drinking water modules require specific conditioning procedures prior to producing potable water; consult the product technical manual flushing section.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror