No phase change is required during filtration
02 / ULTRAFILTRATION
UF Ultrafiltration System
Hollow-fibre membranes retain suspended solids, colloids, bacteria and macromolecules. UF can operate as an independent clarification step or as stable pretreatment for RO.
Performance depends on feedwater and membrane selection
Automatic cleaning sequences maintain membrane permeability
PROCESS ROUTE
Typical Process Route
This is a typical configuration logic, not a fixed equipment list. The final design depends on feed analysis, target requirements, capacity and site constraints.
- 01
Feed Screening
Remove large particles and protect membrane modules
- 02
Dosing as Needed
Coagulation or disinfection according to water quality
- 03
UF Filtration
Hollow-fibre membranes retain suspended contaminants
- 04
Backwash
Periodic hydraulic cleaning restores flux
- 05
Product-Water Storage
Buffer supply to downstream RO or reuse
APPLICATIONS
Applications
RO PretreatmentReduce particulate and colloidal loading
Surface WaterClarification and microbial control
Water ReusePolishing after biological treatment
Food ProcessingProcess-water clarification
Industrial ParksCentralized pretreatment
System UpgradesReplace or reinforce conventional filtration
TECHNICAL KNOWLEDGE
Technical Notes & FAQ
Clear principles, prerequisites and operating limits help determine whether a process is suitable before quotation.
What is the difference between UF and RO?
UF mainly removes suspended and macromolecular contaminants; RO also removes dissolved salts. They often work in series rather than replace each other.
What affects UF flux?
Water temperature, turbidity, organic loading, membrane material and cleaning strategy all influence sustainable flux.
Why is backwashing required?
Retained contaminants build up on the membrane surface. Controlled backwashing and chemically enhanced cleaning recover permeability.
Can UF directly produce drinking or ultrapure water?
UF is a barrier step, not a complete guarantee for every final-water target. Disinfection, RO or polishing may still be required.
Technical reference: Public ultrafiltration principles and application guidance from DuPont Water Solutions. Final design follows feedwater testing and selected membrane specifications.
ENGINEERING DELIVERY
Engineering Delivery & Support
We support the full project lifecycle from process planning and manufacturing to commissioning and after-sales service.
Process Design
Define the process route and equipment selection from water quality, capacity, targets and site constraints.
Manufacturing
Modular assembly, quality inspection and factory testing against the approved design.
Installation & Commissioning
Site installation, integrated commissioning, operating optimization and operator training.
After-Sales Support
Ongoing technical support, consumables and troubleshooting, with a 24-hour response to after-sales issues.
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