- Complete pulp mills
- Chemical pulping
- Wood handling
- Cooking and fiber line
- Pulp drying and baling
- Chemical recovery
- Air emission control
- New value-adding processes
- Dissolving pulping
- Mechanical pulping
- Recycled fiber
-
Automation for pulp
- Distributed control systems
- Industrial applications
-
APC Advanced Process Controls
- Valmet WinGEMS
- Valmet Debarking Optimizer
- Valmet Batch Cooking Optimizer
- Valmet Continuous Cooking Optimizer
- Valmet Washing Line Optimizer
- Valmet Oxygen Stage Optimizer
- Valmet Bleaching Optimizer
- Valmet Evaporation Optimizer
- Valmet Recovery Boiler Optimizer
- Valmet Recovery Boiler Leak Detector
- Valmet Recovery Boiler Sootblowing Optimizer
- Valmet Causticizing Optimizer
- Valmet Lime Kiln Optimizer
- Valmet Recovery Line Management
- Mill information management
- Quality control systems
- Analyzers and measurements
- Boiler Diagnostics Systems
- Automation services
-
Services for pulp
- Spare and process parts
- Field services
- Workshop and roll services
- Fabrics
- Maintenance development and outsourcing services
- Process upgrades
- Process and production optimization
- Industrial Internet solutions
- Automation services
- Service agreements
- Valmet's way to serve
- Service centers
- Fiber Technology Center
- Pulp references
- Pulp news and stories
- Pulp
- Mechanical pulping
- Bleaching
- High-consistency bleaching (PHC)
High-consistency bleaching (PHC)
The choice of the most cost-effective OptiBright bleaching system depends on the specific brightness target. The optimal system ensures the lowest possible chemical costs.
If, for example, a TMP with brightness of 60% ISO is to be bleached to less than 72% ISO, the recommendation based on chemical cost would be medium-consistency peroxide system or in some cases a dithionite system.
Above 72% ISO, we recommend high-consistency peroxide bleaching (PHC).