Valmet Sludge Dewatering Optimizer improves dewatering at Norske Skog
Dec 18, 2018
Norske Skog in Bruck an der Mur, Austria makes high-quality lightweight coated and newsprint grades with varying amounts of post-consumer waste pulp. The mill decided in 2016 to purchase a Valmet Sludge Dewatering Optimizer (Valmet SDO) solution to stabilize the process and improve boiler operation. Integrated to the existing Valmet DNA distributed control system, which was installed in 2007 to control effluent treatment, the software package was accompanied by a Valmet Total Solids Measurement (Valmet TS) microwave transmitter to measure the total solids amount to sludge dewatering.
Now with Valmet SDO controlling dewatering the operator’s job is a little easier. We have achieved the stable operation we were looking for and the process is better balanced leading to more stable boiler operation.
Martin Simmler, Energy Manager
Summary
Location
Bruck an der Mur, Austria
Customer challenge
Consume of additives in dewatering
Total solids measured by a laboratory test indicating the average over 24 hours from an automatic sampler, meaning that short-term variations went undetected
