Lenntech
Fact Sheet
info@lenntech.com Tel. +31-152-610-900
www.lenntech.com Fax. +31-152-616-289
Sugar Processing Sugar
Concentration Duracon*
RO-3 8040C-50P
The Duracon* family of proprietary thin-film reverse
osmosis membrane elements are characterized by
high sodium chloride rejection and a smooth, fouling-resistant membrane surface. The S-Series
membrane has an average rejection of 99.0% on
2000 ppm NaCl at 25°C and 425 psig (2,930 kPa).
The Duracon RO-3 8040C-50P Elements provide
high rejection of sugars and low molecular weight
organic constituents at operating pressures up to
600 psi (4,137 kPa). This element is designed for
high crossflow, daily CIP and the ability to handle
suspended solids and periodic hot-water sanitation,
while still maintaining element integrity. They are
typically used for concentrating sugar in foodrelated processes requiring stringent sanitary procedures. Applications include protein and sugar
concentration, lactose recovery and waste water
applications requiring reduction of BOD.
Figure 1: Element Dimensions Diagram
Table 3: Dimensions and Weight
Dimensions, inches (cm)
Model
Duracon RO-3 8040C-50P
Dry Boxed
A
B
C
Weight
lbs (kg)
40
(101.6) 1
1.125
(2.86)
7.91
(20.1) 1
32
(14.53)
1
The element diameter (dimension C) is designed for optimum performance in GE
pressure vessels. Other pressure vessel dimension and tolerance may result in
excessive bypass and loss of capacity.
Table 4: Operating and Design Parameters
Membrane
S-Series, thin-film membrane (TFM*)
Typical Operating
Pressure
200-500 psig (1,379-3,447 kPa)
The Duracon RO-3 8040C-50P Elements feature a
Durasan* patented outerwrap, patented feed spacers and polysulfone parts.
Typical Operating
Process Flux
7-18 GFD (11.9-30.6 LMH)
Clean Water Flux (CWF)2
16-18 GFD (27.2-30.6 LMH) @ 425 psig
Maximum Pressure
600 psig (4,137 kPa)
Table 1: Element Specification
Maximum Temperature
122°F (50°C)
Sanitization Temperature3
194°F (90°C)
Recommended pH
Operating Range 3.0-10.0,
Cleaning Range 2.0-11.5
Chlorine Tolerance
500 ppm-hours, dechlorination recommended
Model
Spacer
Mil (mm)
Active Area
ft2 (m2)
Part
Number
Duracon RO-3 8040C-50P
50 (1.27)
265 (24.6)
1207489
Table 2: Pressure Drops
Maximum
Pressure Drop
∆P - psig (kPa)
Elements per Pressure Vessel
1
2
3
4
5
15 (103)
30 (207)
45 (310)
60 (414)
60 (414)
2
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%.
3
Hot Water Sanitization Recommendations: Elements should be cleaned with
approved CIP procedure and flushed with fouling-free clean water before sanitization process. Feed pressure during sanitization should not exceed 40 psi and
the crossflow should not cause higher than 2 psi pressure drop per element.
Heating rate to sanitizing temperature should not be higher than 5°C/min and
cool down rate should be the same.
©2006, General Electric Company. All rights reserved.
*Tr a dema r k of Genera l Elec tr ic Compa ny ; ma y be r egis ter ed in one or more c ountr ies .
FS1212EN 0607