20 years of precision: from microwave innovation to wastewater excellence

In 2006, we asked a simple question; could the microwave technology that transformed the pulp and paper industry do the same for wastewater? Two decades later, the answer is a resounding yes. This year, Valmet celebrates 20 years in the wastewater industry. What began with the Valmet Total Solids Measurement has grown into a world class portfolio now trusted in more than 4,000 installations worldwide.

From the start, our development was driven by customer needs, to meet their toughest challenges, resulting in solutions like our non sticking designs, flushing flanges, and high pressure models. Our mission remains clear; to deliver accurate and reliable real time solids measurements that help plants advance the environmental and public health benefits of wastewater treatment in their communities. By providing the data needed for precision control, we help plants protect our most precious resource.

Valmet’s portfolio covers every stage of the process. The Valmet Total Solids Measurement is the industry-standard microwave measurement for reliable and continuous solids tracking. The Valmet Low Solids Measurement for high sensitivity centrate and effluent monitoring, and the Valmet Dry Solids Measurement for optimising cake dryness and disposal costs. For tougher applications, the Valmet High Solids Measurement provides durable microwave technology built for demanding sludge conditions. The Valmet Nove C ensures consistent and representative sampling specifically for wastewater needs. The Valmet Sludge Dewatering Optimizer, the "brain" of the operation, uses all measurements to automatically optimise chemical dosing, minimise centrate solids, and maximise cake dryness.

Wastewater plants enjoy greater operational peace of mind with 24/7 optimisation, reduced laboratory sampling, and significant polymer savings. With real time insights supporting proactive decisions, they also benefit from lower energy use in drying, incineration, and transport, while contributing to cleaner water and healthier communities.