Valmet's new dry cake measurement improves dewatered sludge quality in wastewater treatment

Valmet Corporation's trade press release on May 3, 2016 at 9:00 a.m. EET

The new Valmet Dry Solids Measurement (Valmet DS) is used to measure dry cake solids for dewatering control in waste water treatment, and it complements Valmet's wastewater control offering. Its safe, low-power microwave technology enables stable and accurate measurements, which can be utilized by the feedback control to optimize polymer dosage and centrifuge. This decreases energy consumption through better torque control.

"The Valmet Dry Solids Measurement helps our customers take their performance forward. Remarkable polymer and energy savings can be achieved through continuous and reliable solids measurement. By maximizing drying efficiency to a target dry cake solids content, additional savings can be achieved through reduced transportation costs and fuel consumption during incineration," says Jarmo Havana, Product Manager, Valmet.

Proven results

With the help of the improved feedback control enabled by Valmet DS, the TZ Osbourne Wastewater Treatment Plant in Greensboro, North Carolina, USA has achieved a reduction in polymer of up to 25%. The Viinikanlahti wastewater treatment plant in Finland is also providing good results: "Valmet DS is a reliable online measurement. We can now really see how well the centrifuge is operating," says Sami Ilomäki, Operations Engineer at the Tampere Water plant.

Technical details

Valmet DS is typically located in the downfall section of the dry cake with a screw conveying the sample to the microwave sensor chamber before it is returned to the process. The Industrial Internet functionalities allow full access to the measurement data, alarms and diagnostics that are all remotely accessible.

Corporate Communications

For further information, please contact:
Jarmo Havana, Product Manager, Valmet.
tel. +358 505775524

Valmet is the leading global developer and supplier of process technologies, automation and services for the pulp, paper and energy industries. We aim to become the global champion in serving our customers.

Valmet's strong technology offering includes pulp mills, tissue, board and paper production lines, as well as power plants for bioenergy production. Our advanced services and automation solutions improve the reliability and performance of our customers' processes and enhance the effective utilization of raw materials and energy.

Valmet's net sales in 2015 were approximately EUR 2.9 billion. Our 12,000 professionals around the world work close to our customers and are committed to moving our customers' performance forward - every day. Valmet's head office is in Espoo, Finland and its shares are listed on the Nasdaq Helsinki.

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