Finnish wastewater treatment plant gets quick reduction in operating costs
Problem
The wastewater treatment plant in Turku, Finland, processes wastewater from the region’s industries and almost 300,000 residents. “The acquisition of new dewatering systems became a hot topic when we renewed our sludge treatment contract in 2018,” says Jouko Tuomi, process engineer. “We decided to launch a tendering procedure to replace our machines with modern decanters and thus achieve maximum dryness.”
Solution
The city purchased two decanter centrifuges from Flottweg.
Result:
“In two years we have saved sludge costs of over $170,000 per year because the dry matter content has increased by about 5%,” Tuomi says. “At the same time, we have saved















