HYDRAcap

Summary

Product identification

The HYDRAcap® ultrafiltration membrane modules feature state-of-the-art capillary technology.

• Type: Ultrafiltration (UF)
• Configuration: Capillary (Inside-out)
• Membrane Polymer: Hydrophilic polyether sulfone
• MWCO, nominal: 150,000 Daltons
• Capillary ID: 0.031 inches (0.8 mm)
• Capillary OD: 0.051 inches (1.3 mm)
• Nominal Membrane Area:
  • 40-inch module: 320 ft² (30 m²)
  • 60-inch module: 500 ft² (46 m²)

Module Dimensions (from diagram):

• Diameter: ø11 1/4" (285.8 mm), ø9 7/8" (250.8 mm), 6.32" (160.5 mm)
• Module Length (A, B, C):
  • HYDRAcap 40:
    • A: 43" (109.2 cm)
    • B: 46 1/8" (117.2 cm)
    • C: 47 1/4" (120.0 cm)
  • HYDRAcap 60:
    • A: 63" (160.0 cm)
    • B: 66 1/8" (168.0 cm)
    • C: 67 1/4" (170.8 cm)

Operating limits

• Maximum Operating Temperature: 104°F (40°C)
• Maximum Feed Pressure: 73 psig (5 bar)
• Transmembrane Pressure (TMP) range: 4 - 22 psig (27 - 152 kPa)
• pH Range: 2 - 13
• Instantaneous Chlorine Tolerance: 200 PPM
• Instantaneous Hydrogen Peroxide Tolerance: 200 PPM

Feed water

HYDRAcap modules are designed for treating high-fouling surface water and municipal effluents. They can serve as either the primary treatment method or as a pretreatment step to RO/NF, replacing conventional pretreatment for potable applications, groundwater recharging, and water recycling.

Product water

HYDRAcap provides superior filtrate quality compared to conventional pretreatment, exhibiting 100% removal of colloidal material. It achieves over 5 log removal efficiency for bacteria and viruses, and reduces turbidity levels to <0.06 NTU.

Mechanical / hydraulic

Typical Process Conditions:

• Operating Mode: Cross-flow or dead-end, backwashable
• Typical Filtrate Flux Range: 35 - 85 GFD (59 - 145 l/m²/hr)
• Backwash Pressure: 35 psig (242 kPa)
• Backwash Flux: 175 - 200 gfd (298 - 340 l/m²/hr)
• Backwash Frequency: once every 15 - 60 minutes
• Backwash Duration: 30 - 60 seconds
• Chemically Enhanced Backwash Frequency: Minimum 1 - 2 times per day
• Chemically Enhanced Backwash Duration: 1 - 10 minutes
• Disinfection Chemicals: NaOCl (hypochlorite) or H₂O₂ (peroxide)
• Cleaning Frequency: once every 1 - 2 months
• Cleaning Chemicals: NaOCl + NaOH, Citric Acid

HYDRABLOC™ Modular Ultrafiltration Design:

• HYDRAcap 40 (8-module configuration):
  • Typical Filtrate Flow: 50 - 140 gpm (11 - 32 m³/hr)
  • Footprint (W x L x H): 4' x 4' x 7' (1.2 x 1.2 x 2.1m)
• HYDRAcap 60 (24-module configuration):
  • Typical Filtrate Flow: 240 - 640 gpm (55 - 145 m³/hr)
  • Footprint (W x L x H): 5' x 14' x 9' (1.5 x 4.3 x 2.7m)
• One HYDRABLOC can accommodate up to 144 HYDRAcap 60 modules in a 3 x 2 bloc configuration.

Certifications

HYDRAcap modules hold CADHS, NSF/EPA, and DWI (U.K.) certifications for materials of construction, operation, and pathogen removal efficiency. They are designed to respond effectively to the requirements of the Surface Water Treatment Rule and Drinking Water Inspectorate regulations for potable water use.

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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