- Recycled fiber
- Stock preparation
- Board and paper machines
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Services for board and paper
- Spare and process parts
- Workshop and roll services
- Paper machine clothing and filter fabrics
- Maintenance development and outsourcing
- Field services
- Process upgrades
- Process and production optimization
- Service Agreements
- Industrial Internet solutions
- Automation services
- Valmet's way to serve
- Service Centers
- Automation for board and paper
- Industrial Internet
- Service Centers
- References
- Board and paper news and stories
- Search for products & services
- Sustainable board and paper production
- Board and paper
- Stock preparation
- White water system
- Filtration
- Ultrafiltration
Ultrafiltration

A modular process for paper machine white water treatment
Colloidal substances, stickies and bacteria are among the main components that lead to runnability and efficiency losses in paper machine processes. Prevention of these reductions in performance can be achieved using a modular approach to whitewater treatment.
Valmet’s Ultrafiltration process is a solution for paper, board and tissue mills to produce colloid-free, bacteria-free, ultrapure water from white water. The main objectives are to reduce fresh water consumption, improve paper machine runnability, efficiency, and manage energy.
Key benefits include:
- Lower fresh water consumption
- Reduced chemical consumption
- Reduced slime formation
- Reduced need for biocide
- Reduced micro stickies
- Better runnability of paper machine
CUSTOMER SUCCESS STORY
New ultrafiltration technology saves fresh water at tissue mills
Water is a scarce natural resource. Valmet’s new ultrafiltration technology is a unique solution for decreasing tissue mills’ fresh water consumption.