Our hollow fiber ultrafiltration (UF) membrane systems deliver high-efficiency separation of suspended solids, colloids, microorganisms, and turbidity down to 0.01 microns. Designed for modular scalability, automated operation, and harsh feed-water conditions, each skid is custom-engineered to minimize fouling and lower operating costs.
Key Advantages
High Mechanical Strength: Premium PVDF/PES fiber construction minimizes fiber breakage (less than 0.01% failure rate) and withstands aggressive chemical cleaning (CIP).
Guaranteed RO Protection: Consistently achieves permeate turbidity <0.1 NTU and Silt Density Index (SDI15) <2.5, doubling downstream RO membrane lifespan.
Compact Modular Footprint: Skid-mounted and containerized designs reduce field installation time by up to 40%.
Fully Automated Control: Integrated PLC/HMI system manages backwash, air scouring, and Chemically Enhanced Backwash (CEB) cycles automatically.
Certified Quality: Manufactured under ISO 9001, CE, and NSF/ANSI international standards.
Target Applications
RO Pretreatment: Prevents colloidal and biological fouling in seawater and brackish water RO systems.
Surface Water Treatment: Handles seasonal spikes in turbidity, algae, and organic TOC from rivers and lakes.
Industrial Water Reuse: Polishes tertiary effluent from textile, chemical, power, and food & beverage processing plants.
Municipal Drinking Water: Meets strict local regulatory requirements for pathogen removal (Giardia, Cryptosporidium).
Technical Specifications
|
Parameter |
Standard Specification |
Customization / Operating Range |
|
Membrane Material |
PVDF (Polyvinylidene Fluoride) |
PES / PVC |
|
Filtration Mode |
Out-to-In / In-to-Out |
Based on water quality |
|
Nominal Pore Size |
0.01 – 0.03 um |
100,000 – 150,000 Dalton MWCO |
|
Operating Flux |
45 – 80 LMH |
30 – 110 LMH (based on feed water) |
|
Operating Pressure |
0.5 – 2.5 bar |
Max 4.0 bar |
|
Transmembrane Pressure (TMP) |
0.2 – 1.5 bar |
Max 2.0 bar |
|
System Recovery |
90% – 95% |
Up to 98% with secondary recovery |
|
Operating pH Range |
2 – 11 (Continuous) |
1 – 13 (CIP Cleaning) |
|
Control System |
Siemens / Allen-Bradley PLC |
Touchscreen HMI + Remote SCADA |
|
Skid Frame & Piping |
SS304 / SS316L / SCH80 PVC |
Duplex Stainless Steel / FRP |
Proven Field Applications
50,000 m3/day Seawater RO Pretreatment: Maintained stable SDI <2.0 under variable algae bloom conditions in Middle East installations.
12,000 m3/day Textile Wastewater Reuse: Reduced feed turbidity from >80 NTU to <0.08 NTU, significantly saving annual freshwater procurement costs.
Project Selection & Engineering Workflow
Capacity & Flow Definition: Confirm average flow (m3/h), peak demand, and daily operating hours.
Feed Water Analysis: Review key metrics including Turbidity, TSS, SDI, TOC, Oil & Grease, and Temperature.
Flux & Area Optimization: Select design flux (LMH) based on foulant index rather than nominal values to prevent rapid fouling.
Skid Equipment Integration: Configure feed pumps, automated valves, backwash/air-scour systems, and dosing equipment into a unified skid.
Quality Assurance & Factory Testing
Every UF system undergoes testing prior to shipment:
Hydrostatic Pressure Test: 1.5x design pressure verification on all piping and headers.
Pneumatic Fiber Integrity Test: Pressure-hold verification to ensure zero defective modules.
Full PLC Sequence Simulation: Pre-testing of automatic backwash, air-scour, and emergency shutoff protocols.
Documentation & Commercial Terms
Engineering Documentation Package: Technical Datasheet, P&ID Drawings, 3D GA Layout (AutoCAD/STEP), Electrical Schematics, Control Description, and O&M Manual.
Warranty: 12-month standard warranty with extended membrane performance guarantees up to 3 years.
Delivery & Support: Available as skid-mounted systems or pre-commissioned containerized units. Includes on-site commissioning guidance and 24/7 technical support.
FAQ
Q: What is the typical lifespan of the hollow fiber UF membranes?
A: Under standard operating conditions and proper cleaning protocols (Backwash/CEB/CIP), PVDF hollow fiber membranes typically have an operational lifespan of 3 to 5 years.
Q: How does the system automatically handle membrane fouling?
A: The PLC system monitors Transmembrane Pressure (TMP). It automatically triggers periodic air scouring, hydraulic backwashing, and Chemically Enhanced Backwash (CEB) based on pre-set time intervals or pressure differential setpoints.
Q: Can this system handle raw water with high oil and grease content?
A: UF membranes are susceptible to fouling by free oil. If feed water contains oil and grease exceeding 5 mg/L, appropriate pretreatment (such as DAF or oil-water separators) must be installed upstream.
Q: What feed water pretreatment is required before entering the UF system?
A: A strain strainer or automatic self-cleaning filter (typically 100–200 microns) is required upstream of the UF system to protect membrane modules from large debris and sharp particles.
Q: Are containerized options available for remote sites?
A: Yes, complete UF systems (including modules, pumps, chemical dosing, and controls) can be pre-assembled, wired, and tested inside standard 20ft or 40ft ISO shipping containers for fast plug-and-play installation.
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