SWC4B MAX Hydranautics RO Membrane

Features

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SWC4B membranes use the same polymer chemistry as SWC4 offering highest rejection including boron. SWC4B-LD and SWC4B MAX membranes are used in the production of potable waters when the permeate boron concentration is critical.They do not need the second pass thus reducing capital costs.

SWC4B MAX, with higher active membrane surface area, is preferred with membrane pre-treatment to get consistently lower boron concentrations in permeate.

SWC4B-LD and SWC4B MAX membranes are available in 8 inch diameter only.

Performance

Permeate Flow: 7,200 gpd (27.3 m3/d)
Salt Rejection: 99.8 % (99.7 % minimum)

Type

Configuration: Spiral Wound
Membrane Polymer: Composite Polyamide
Membrane Active Area: 440 ft2 (40.9m2)

Application Data

Maximum Applied Pressure: 1200 psig (8.27 MPa)
Maximum Chlorine Concentration: < 0.1 PPM
Maximum Operating Temperature: 113 °F (45 °C)
pH Range, Continuous (Cleaning): 2-11 (1-13)*
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Feed Flow: 75 GPM (17.0 m3/h)
Minimum Ratio of Concentrate to
Permeate Flow for any Element: 5:1
Maximum Pressure Drop for Each Element: 15 psi
* The limitations shown here are for general use. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more detail on operation limits, cleaning pH, and cleaning temperatures.

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