Reinforced Ultra Filtration Hollow Fiber Membrane for Water Purification with PVDF material
Ultrafiltration (UF) is a variety of membrane filtration in which forces like pressure or concentration gradients lead to a separation through a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained in the so-called retentate, while water and low molecular weight solutes pass through the membrane in the permeate (filtrate). This separation process is used in industry and research for purifying and concentrating macromolecular (103 – 106 Da) solutions, especially protein solutions.
Hollow fiber ultrafiltration membrane is an asymmetric membrane made of a polymer material by special technology. It is a hollow capillary tube wall with microporous, under the action of pressure and the liquid flow inside the membrane, the solvent or small molecules can pass through the membrane, by collecting and become super filtrate, and one of the high polymer material (protein, nucleic acid, polysaccharide, etc.), and colloidal particles are stopped on the membrane surface, was taken away by circulating fluid concentrate and be concentrate, so as to achieve the separation of matter, and the purpose of enrichment and purification.
Structure and Specifications of UF Membrane Modules
Small size of UF modules
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Size and weight | Model | KH-UF-4040W-PVDF | KH-UF-6040W-PVDF |
| Module Diameter ( A, mm) | Φ90 mm | Φ160 mm |
| Module Length ( B, mm) | 960mm | 960mm |
| Module Length (C, mm) | 1106 mm | 1304 mm |
| Size of Inlet/Outlet (D, mm) | DN25 | DN32 |
| Operating Type | Outside to Inside | Outside to Inside |
| Membrane Area | 8.0 m2 | 20 m2 |
| Dry weight of the module | 5 Kg | 12 Kg |
| Parameters | Shell material | UPVC | UPVC |
| Membrane Material | PVDF | PVDF |
| Membrane pore size | 0.03μm | 0.03μm |
| Inner diameter of the hollow fiber | 0.7 mm | 0.7 mm |
| Outer diameter of the hollow fiber | 1.3mm | 1.3mm |
| Turbidity of Permeating water | ≤ 0.2NTU | ≤ 0.2 NTU |
| SDI value of permeating water | ≤ 3 | ≤ 3 |
| Flux rate of purified water (0.10MP,20℃) | ≥1000L/H | ≥3000L/H |
| Typical Process | Temperature Range | 5-45 ℃ | 5-45 ℃ |
| PH Value Range | 2-13 | 2-13 |
| Permeating Flux rate for different Water | 40 - 80 l/m2/hr | 40 -80 l/m2/hr |
| Operating Pressure | ≤0.12 MPa | ≤0.12MPa |
| Maximum Inlet Pressure | 0.2 MPa | 0.2MPa |
| Backwashing flux rate | 1.5-2.0 times of Permeating Flux | 1.5-2.0 times of Permeating Flux |
| Backwashing times | Once per 30-120 minutes | Once per 30-120 minutes |
| Chemical cleaning online during backwashing | Once per 7-14 days | Once per 7-14 days |
The whole installation and application process of our MBR modules are described as the following photo:
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Reinforced 52m2 UF System 80LMH Hollow Fiber Ultrafiltration Membrane Images
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