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Valmet introduces polymer concentration measurement for paper and board polymer applications

Valmet has launched the new Valmet Polymer Concentration Measurement (Valmet PCM), which is an advanced optical inline polymer measurement for pulp and paper processes, as well as municipal and industrial wastewater treatment. Real-time, continuous polymer concentration data creates new opportunities for process optimization, such as more accurate polymer dosage, savings in polymer usage, faster reaction to process disturbances, among others.

Valmet explains in a press statement that knowing the actual polymer levels allows facilities to significantly reduce polymer consumption through accurate preparation and dosing. Steady polymer concentration in turn improves flocculation, clarification, dewatering and other key processes. Better performance saves energy and lowers sludge transport and incineration needs, furthering the positive environmental and social impacts of efficient wastewater treatment.

In paper and board processes, chemicals, typically polymers, are added to improve the retention of fine particles and fillers during web formation. Accurate information about polymer concentration helps optimize wet end retention and increase process efficiency.

Despite a compact probe design, the optics reportedly maximize measurement volume. To counter probe contamination common in wastewater applications, Valmet developed a new automatic flushing system to keep the Valmet PCM probe clean and measurements stable. The integrated sensor probe flushing unit also includes support for a manual lab sampling valve.