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-5 8040C
The Duracon* family of proprietary thin film reverse
osmosis membrane elements are characterized by
high flux and excellent sodium chloride rejection.
The A-Series membrane has an average rejection of
99.2% on 2000 ppm NaCl at 25°C and 225 psig.
The Duracon RO-5 8040C Elements provide ultrahigh rejection of dissolved solids and low molecular
weight organic constituents at operating pressures
up to 1200 psi (8,274 kPa). This element is designed
for processing streams previously treated by
ultrafiltration and can be periodically hot-water
sanitized. They are typically used for concentrating
sugar in food-related processes requiring stringent
sanitary procedures. Applications include sugar
concentration and waste water applications requiring reduction of BOD.
Figure 1: Element Dimensions and Weight
The Duracon RO-5 8040C Elements feature a
Durasan* patented outerwrap, a selection of feed
spacers and polysulfone parts.
Table 4: Operating and Design Parameters
Table 3: Dimensions
Dimensions, inches (cm)
Model
Duracon RO-5 8040C-30D P1
Duracon RO-5 8040C-50D
Duracon RO-5 8040C-50P
Duracon RO-5 8040C-30D P1
B
C
40
(101.6)
40
(101.6)
40
(101.6)
1.125
(2.857)
1.125
(2.857)
1.125
(2.857)
7.91
(20.1) 1
7.91
(20.1) 1
7.91
(20.1) 1
Weight
lbs (kg)
32
(14.53)
32
(14.53)
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 1: Element Specification
Model
A
Dry Boxed
Membrane
A-Series, thin-film membrane (TFM*)
Typical Operating
Pressure
Typical Operating
Process Flux
Clean Water Flux (CWF)2
200-800 psig (1,379-5,516 kPa)
7-18 GFD (11.9-30.6 LMH)
14 GFD (24 LMH) @ 225 psig
Spacer
Mil (mm)
Active Area
ft2 (m2)
Part
Number
Maximum Pressure
1200 psig (8,274 kPa)
Maximum Temperature
122°F (50°C)
30 (0.76)
341 (31.7)
1226495
Sanitization Temperature3
194°F (90°C)
Recommended pH
Operating Range 3.0-10.0,
Cleaning Range 2.0-11.5
1000 ppm-hours, dechlorination recommended
Duracon RO-5 8040C-50D
50 (0.76)
243 (22.6)
1231100
Duracon RO-5 8040C-50P
50 (0.76)
256 (23.8)
1223048
Chlorine Tolerance
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%.
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)
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 .
FS1210EN 0607