Metso has developed an online measurement technology with which municipal and industrial wastewater plants are able to improve their performance and reduce the amount of chemicals used in sludge drying process by even up to one third. The new Metso Low Solids Measurement is the first online measurement technology for municipal and industrial wastewater treatment plants that enables measurement of a media with very low solids contents in difficult applications like centrifuge centrate. The technology also offers significant savings per centrifuge in polymer and centrifuge usage. There has not been any online measurement technology available that enables reliable measurement of a media with very low solids contents in this measurement position. "The new technology developed by Metso offers the world's water treatment plants an opportunity to improve their performance and thus gain major cost savings. A large North American wastewater treatment plant has calculated that it saves even up to 30 per cent in its annual $2.5 million chemical costs. In addition, a municipal plant in Finland using Metso LS™ estimates that they will achieve annually EUR 15,000 savings in polymer and centrifuge usage only by keeping reject water total suspended solids lower that 1000 mg/l", says Timo Rantala, Product Manager, Metso's Automation business line.