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.
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 |
| Solution | |
| Results |
Improved boiler operations and stabilized dewatering conditions to meet the dry solids target with optimum additive addition. Good control results with the continuous total solids measurement. Stable operation and the balanced process leading to more stable boiler operation. |
| Keywords | Wastewater, Automation, Europe |
