Water management

Water management means limiting the consumption of natural resources, including raw materials, energy, and fresh water. Fresh water is probably the most critical resource for pulp and paper mills today. By consuming less fresh water, paper mills can influence both the quantity and quality of their environmental load. For example, toxic pollution emissions to water systems decrease, along with the unnecessary use of chemicals, less carbon dioxide is released by the heating of fresh water, and overall energy consumption is reduced, as are waste water and solid waste volumes. The optimization of fresh water consumption and raw materials usage will enable mills to better meet ever-tightening environmental requirements.

From a process point of view, proper water management is needed to ensure good runnability at low fresh water consumption levels. With efficient water management, pulp and paper mills are able to achieve big measurable savings and improve their total efficiency.

Comprehensive solutions for better water utilization

Valmet’s comprehensive water management solutions include process optimization, process evaluation and feasibility studies, and water concepts for lowering fresh water consumption in the production of various paper grades. We also offer advanced water treatment processes based on Valmet Ultrafilter CR*(= cross rotational) ultrafiltration technology.

• Valmet Ultrafiltration W** for paper machines' white water treatment to reduce fresh water consumption
• OptiCycle R to remove resins from mechanical pulp mill filtrates
• Valmet Ultrafiltration C*** to recover coating color from effluent
• OptiMixer Stock and OptiMixer Retention mixers for the efficient mixing of chemicals and pulp

*earlier known as OptiFilter CR
**earlier known as OptiCycle W
***earlier knonw as OptiCycle C