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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.

XXL size recovery boilers - safety and availability, case study

XXL size recovery boilers have operated since 2004, reaching or exceeding all process requirements. The XXL size recovery boilers are typically designed for high dry solids content, high energy efficiency, low air emissions, and environmentally friendly process solutions. Those boilers burn Non-Condensable Gases (NCG) and other side streams coming from the other parts of the mill, and therefore the XXL size recovery boilers are very important in targeting for odorless pulp mills.

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!

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.

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.

Valmet shoe press belt has proven success, six case studies

An unscheduled belt change in the press section is costly. Case studies show Valmet Black Belt handles extremely high nip loads and provides long run times.

Knowledge and technology drive Valmet roll cover development

It is just as important to optimize the structural design of covers as the choice of materials. This has been, and will continue to be, a tough but interesting challenge, since the requirements of the papermaking process often exceed the demands of any other industry.

The Valmet eStore interactive parts catalog is available 24/7

Valmet eStore is an electronic spare parts catalog for easy access to BOMs, drawings, and other important machine documentation specific to your mill.

Reliable flow control for carbon capture

Carbon capture and storage will be essential to lowering emissions and to help tackle climate change. Did you know reliable flow control and high quality valves play an important role also in carbon capture technologies?

Flow control partner spotlight: PMS valveTec

We are excited to share our second partner spotlight story with you. Meet PMS valveTec from Austria. We've done successful cooperation with PMS already for 20 years.