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-1 4040C-35D
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 98.5% on
2000 ppm NaCl at 25°C and 225 psig.
The DuraconTM RO-1 4040C-35D Elements provide
high rejection of sugars and low molecular weight
organic constituents at operating pressures up to
1200 psi (8,274 kPa). They are typically used for
concentrating sugar in food-related 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-1 4040C-35D
Active Area
ft2 (m2)
Part
Number
Duracon RO-1 4040C-35D
35 (1.27)
80 (7.43)
1223902
∆P - psig (kPa)
Elements per Pressure Vessel
1
2
3
4
5
15 (103)
30 (207)
45 (310)
60 (414)
60 (414)
C
Weight
lbs (kg)
40.00
(101.6) 1
0.625
(1.6)
3.98
(10.11)
12
(5.4)
Table 4: Operating and Design Parameters
Table 2: Pressure Drops
Maximum
Pressure Drop
B
Length includes ATD’s (not shown)
Table 1: Element Specification
Spacer
Mil (mm)
A
1
The DuraconTM RO-1 4040C-35D Elements feature
a Durasan* patented outerwrap, a selection of feed
spacers and polysulfone parts.
Model
Dry Boxed
2
Membrane
S-Series, Thin-film membrane (TFM*)
Typical Operating
Pressure
200-800 psig (1,379-5,516 kPa)
Typical Operating
Process Flux
7-18 GFD (11.9-30.6 LMH)
Clean Water Flux (CWF)2
14 GFD (24 LMH) @ 225 psig
Maximum Pressure
1200 psig (8.274 kPa)
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
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 oC/min and
cool down rate should be the same.