Valmet goes underground to help treat wastewater
May 20, 2016
The Kakolanmäki wastewater treatment plant, jointly owned by 14 municipalities, has been operating in the southern Finnish city of Turku since the beginning of 2009. Since the plant is built underground it has a more constant and higher temperature than surface facilities, a distinct advantage for treatment conditions. It is able to process the wastewater from 300,000 people and various industrial sources in a way that considerably reduces the nutrient load on the Baltic Sea.
Product and company names changed from Metso to Valmet. Valmet acquired Metso’s Process Automation System business and products on April 1st 2015.
Summary
| Location | Turku, Finland |
| Customer challenge |
More effective plant operations using online measurements |
| Solution | Valmet Total Solids Transmitter (Valmet TS), Valmet Dry Solids Measurements (Valmet DS) and Valmet Low Solids Measurement (Valmet LS) |
| Results |
Laboratory measurements have been reduced from 1 or 2 per day to 3 times per week Stop pumping from the clarifiers when the sludge content drops below 3.5% and avoid diluting the sludge storage with excess water Polymer dosing and centrifuge control based on online total solids and low solids measurement Operators can be sure that the target of 22% solids content is met Maintenance needs are minimal |
| Keywords | Wastewater, Automation, Europe |
