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SHP Series – Super Hydrophilic Membrane for Oil/Water Separation

The SHP Series membrane filters are made of chemically modified polyacrylonitrile (PAN) polymer in spiral-wound form for WRS systems. This membrane is characterized by a pore size of 0.01 microns with an approximate molecular weight cut-off of 20K – 50K Dalton. To avoid fouling by "free" oils, the SHP series elements have been engineered to be extremely hydrophilic (water attracting) as compared to conventional membranes that are oleophilic (oil attracting). These membranes are used for oil/water separation and suspended solids removal. They are also used as pretreatment of process water before reverse osmosis or nano-filtration.

Membrane maintenance is extremely easy. Periodic cleaning with a nonionic detergent is all that is necessary to maintain optimal performance. Chemicals may be used for cleaning. Acid solutions are used to remove inorganic scale, while bleach or caustic solutions are used to remove organic materials. The maximum cleaning solution strength is not to exceed the recommended limit shown in the Table.

SHP Series filter cartridge

Filter Element Dimensions and Weight


Filter
Part No.
Feed Spacer

mil          (mm)
Dimensions
(Dia x Lg)
in              (cm)
Permeate Tube

in                (cm)
Dry Wt.

Lbs    (Kg)
Membrane Area
Ft2    (m2)
SHP-2012 35 0.89 1.8 x 12 4.6 x 30.5 0.67 od 1.71 od 0.75 0.34 3.5 0.33
SHP-2540 35 0.89 2.4 X 40 6.1 x 101.6 0.75 od 1.91 od 3.25 1.5 23 2.14
SHP-4040 50 1.27 3.9 x 40 9.9 x 101.6 0.625 id 1.59 id 8.5 3.9 65 6.04
SHP-8040 50 1.27 7.9 x 40 20.1 x 101.6 1.125 id 2.86 id 29 13.2 288 26.75

Operating and Cleaning Parameters


Typical Operating Flux 10 - 25 GFD (17 - 43 LMH)
Max Operating Pressure 60 psi (410 kPa)
Max Temp. 122°F (50°C) - Continuous Operation
122°F (50°C) - Clean-In-Place (CIP)
pH Range 3 - 9 for Continuous Operation
2 - 10 for Clean-In-Place (CIP)
Trans-membrane
Pressure
30 psi (205 kPa) - Max
3 - 25 psi (20 - 170 kPa) - Normal
Chlorine Tolerance 200,000 ppm-hours

Maximum Cleaning Solution Strength


Solutions Maximum Strength
Bleach (NaOCl) 150 ppm  <122°F (<50°C)
Caustic (NaOH) pH 10      <122°F (<50°C)
Citric Acid 0.5%        <122°F (<50°C)

Note: Material compatibility shall be tested for applications with a content of highly concentrated solutions.

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