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Disposing of secondary sludge (biosludge) in the recovery boiler

Biosludge is the most problematic residue of the effluent treatment process when it comes to disposal. The high moisture content makes it difficult and costly to landfill or to incinerate in a power boiler. A proven new disposal method is discussed in this article.

Expansion of chemical recovery capacity by 64%, case study

The massive upgrade of the Södra Cell Värö mill in Sweden has increased the mill's capacity by 64%. This white paper examines the changes made to the evaporation and chemical recovery boiler area as part of the project and their role in the production capacity increase, improved environmental performance, as well as increased efficiency of the upgraded mill.

Guaíba odorless pulp mill in successful operation, a case study

In CMPC Guaíba an odorless pulp mill has now been running for almost two years. Besides reducing emissions and preventing explosions, the installation also contains many safety aspects that provide a safe working environment for the personnel at the pulp mill. CMPC Guaíba is an odorless mill without compromising safety!

Moving toward CO2 neutrality by utilizing CFB, case study

HOFOR erected a new power plant in Amagervaerket Copenhagen using Valmet CFB technology. It is a big step toward the CO2-neutral Copenhagen target.

TwinRoll modernizes Arkhangelsk pulp washing plant

Arkhangelsk Pulp and Paper Mill in Russia modernized the washing plant in their bleached pulp production line. The reasons were increased environmental requirements and the old drum filter battery becoming obsolete.

Sunila makes the most out of lignin

Stora Enso’s Sunila Mill produces kraft lignin with Valmet’s LignoBoostTM technology. In 2018, Stora Enso launched their dry lignin product, LineoTM by Stora Enso, which is an excellent alternative to fossil-based materials.

A sustainable star in South Africa

Paper and pulp producer Sappi has been producing high-quality dissolving wood pulp at its Ngodwana mill in South Africa since 2013. Valmet’s unique dissolving fiber line concept resulted in a flexible and sustainable solution.

Successful press section rebuild at Fibre Excellence SAS Provence in France

A press section rebuild has successfully started up on April 2nd 2024 at Fibre Excellence SAS Provence mill in Tarascon, France. The rebuild was a part of a modernization plan, which included 180 million euros of investments over four years, to upgrade the plant to the highest industrial and environmental standards.

Production problems at Fibre-Excellence were solved through Performance Agreement

Fibre-Excellence is a pulp mill located in Saint-Gaudens, South-West France. A few years back the mill was facing frequent breaks and severe losses. To solve their production problems, Fibre-Excellence decided to partner with Valmet. After signing a Performance Agreement, a team of experts from different parts of Valmet was appointed to work with the customer. Co-operation proved to be the key to solving the problems!

Maximizing safety and prevent accidents in knife-changing work with EasyTurn

Valmet emphasizes occupational safety with Chipper knife changing device.