GE P&W Spiral Wound Membranes - Polisher RO - Manual

Fact Sheet
Find a contact near you by visiting www.gewater.com and clicking on “Contact Us”.
* Trademark of General Electric Company; may be registered in one or more countries.
©2013, General Electric Company. All rights reserved.
FSsmPolisherRO_EN.doc Sep-13
Polisher RO
Permeate & Condensate Polishing
The Polisher RO family of proprietary thin film re-
verse osmosis membrane elements is characterized
by high flux and excellent sodium chloride rejection.
The membrane has an average rejection of 99.5%
on 2,000ppm NaCl at 25°C (77°F) and 225psi oper-
ating pressure.
The Polisher RO elements provide high rejection of
dissolved solids and low molecular weight organic
constituents at operating pressures up to 600psi.
Typically used in food-related processing that re-
quires stringent sanitary procedures, the RO Polish-
er is used to treat evaporator condensate (cow
water) and RO/NF permeate in order to recover
process water for the plant.
The Polisher RO element features a Durasan* Cage
patented outer wrap, standard feed spacer and
polysulfone parts.
Table 1: Element Specification
Membrane A-Series, Thin Film Membrane (TFM*)
Model
Spacer
mil (mm)
Active area
ft 2 (m 2 )
Part
number
POLISHER RO8040C30 30 (0.76) 404 (37.5) 1206650
Figure 1: Element Dimensions Diagram
Table 2: Dimensions and Weight
Model 1
Dimensions, inches (cm) Boxed
A B 2 C
Weight
lbs (kg)
POLISHER RO8040C30 40.00
(101.6)
1.125
(2.86)
7.91 3
(20.1)
29
(13.2)
1 These elements are dried and bagged before shipping.
2 Internal diameter.
3 The element diameter (dimension C) is designed for optimum performance in GE
pressure vessels. Others pressure vessel dimension and tolerance may result in
excessive bypass and loss of capacity.
Table 3: Operating parameters
Typical Operating Pressure 200-500psi (1,379-3,447kPa)
Typical Operating Flux 15-20 GFD (25-34 LMH)
Maximum Operating Pressure 600psi (4,137kPa)
Maximum Permeate Pressure 2 60 psi (413 kPa)
Maximum Temperature 122°F (50°C)
pH Range 2.0-11.0
Recommended Pressure Drop Over an element: 12psi (83kPa)
Maximum Pressure Drop Over an element: 15psi (103kPa)
Per housing: 60psi (414kPa)
Chlorine Tolerance 1000ppm-hours
dechlorination recommended
1 Clean water flux (CWF) is the rate of water permeability through the membrane
after cleaning (CIP) at reproducible temperature and pressure. It is important to
monitor CWF after each cleaning cycle to determine if the system is being
cleaned effectively. CWF can vary ±25%.
2 Permeate pressure should never exceed the concentrate pressure.
Table 4: CIP limits for RO elements
Temperature ‘ pH minimum ‘ pH maximum
50°C (122°F) 2.0 11.5
45°C (113°F) 1.5 11.5
35°C (95°F) 1.5 11.5
25°C (77°F) 1.0 12.0