PRODUCTS
MOLSEP®
Hollow fiber membrane module
The hollow fiber membrane modules of DAICEN MEMBRANE-SYSTEMS Ltd. are UF membrane module products (ultrafiltration spectrum). With an optimal balance of good treatment performance and ease in handling, these modules are used in various applications such as water purification plants and manufacturing processes. Cross flow filtration allows for not only filtration and separation but also purification and concentration of feed water.
Mechanism
A module is packed with thousands to tens of thousands of thin straw-shaped separation membranes with an inner diameter of approximately 0.4 to 1.4 mm. Each hollow fiber membrane has a skin layer with fine pore diameters on its surface, which separates the target materials according to their molecular sizes.
These modules mainly use the internal pressure method, which supplies feed water inside the hollow fiber, as well as the cross flow filtration method, which prevents contamination from accumulating on the membranes.
Cross flow filtration method
Operation method that flows feed water parallel to the membrane surface. Since a scraping effect of water flow is obtained, contamination is less likely to accumulate. On the other hand, in dead end filtration method where the feed water flows through the membrane perpendicular to the membrane surface, the membrane becomes clogged quickly.
Features
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01
Compact hollow fiber UF membrane module with wide membrane area
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02
Stable treatment by the internal pressure and cross flow filtration methods
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03
Available in 3 types of membrane materials
Cellulose acetate (CA)
- Highly hydrophilic membrane material derived from nature
- Extensive track record of success in water treatment (installed at more than 170 water purification plants in Japan)
Polyethersulfone (PES)
- Membrane material with high heat resistance, chemical resistance, and water permeability
- Extensive product lineup of molecular weight cut-offs
- Used in various manufacturing processes such as chemicals, pharmaceuticals, and food products
Polyacrylonitrile (PAN)
- Membrane material with low protein adsorption characteristics
- Used in enzyme separation and protein processing
Material CA PES PAN Max. operating temperature＊1 40°C 98°C 45°C pH range 4～8 1～13 2～11 Molecular
weight cut-off150,000 10,000
30,000
150,000
500,00030,000
150,000＊1 May differ according to the operating conditions. Consult us in advance if the module is used for continuous high-temperature conditions.
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04
Extensive product lineup of molecular weight cut-offs and module sizes
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05
Versatile use in pharmaceuticals, food products, chemicals, and water treatment
Applications
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Water purification system for water purification plants
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Pretreatment for wastewater treatment by RO
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Groundwater treatment system
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Filtration of unpasteurized sake (rice wine)
Specifications
- Module model guide
- Main product
specifications
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Membrane area
F50 model F20 model F10 model F06 model F03 model Module for piloting 
FZ50/FX50/FV50/FW50/FR50 FN20/FK20 FS10/FE10/FG10 FG06 FS03/FA03/FF03 FB02/FB03/FB10
AMK/HIT -
Model size Membrane type Molecular Weight Cut Off Membrane material＊1 Hollow fiber inner diameters
(mm)Membrane area
(㎡)Initial permeate water flow rate＊2
(㎥/hr/mo)Max. operating temperature
＊3
(°C)pH range F50 model FUC1582 150,000 CA 0.8 50 28.5 40 4～8 F20 model FUS0382 30,000 PES 0.8 17 6.8 85 1～13 FUS1582 150,000 PES 0.8 16 23.5 85 1～13 FUC1582 150,000 CA 0.8 16 9.8 40 4～8 F10 model FUST653 6,000 PES 0.5 7.8 3.0 98 1～13 FUS0181 10,000 PES 0.8 5 1.8 98 1～13 FUY03A1 30,000 PAN 1.0 4.2 1.2 45 2～11 FUS0382 30,000 PES 0.8 5 2.0 98 1～13 FUS0353 30,000 PES 0.5 7.8 3.0 98 1～13 FUS1582 150,000 PES 0.8 5 4.0 98 1～13 FUS5082 500,000 PES 0.8 5 3.9 98 1～13 F06 model FUS1041 100,000 PES 0.4 7 2.0 90 1～13 F03 model FUS1041 100,000 PES 0.4 2.3 1.0 98 1～13 FUS0353 30,000 PES 0.5 2.1 0.7 98 1～13 FUS0382 30,000 PES 0.8 1.4 0.6 98 1～13 Module for evaluation We can propose modules for evaluation according to the evaluation scale and feed water. - ＊1：CA=Cellulose acetate、PAN=Polyacrylonitrile、PES=Polyethersulfone
- ＊2：The amount of permeated water when pure water at 25 °C is filtered at 0.1 MPa by whole quantity filtration.
- ＊3：May differ according to the operating conditions. Please consult us if the module is used for continuous high-temperature conditions.
We have a wide range of products in addition to those listed.
For more information, please download the specifications or contact us.
