Customer case: Talvivaara - Efficient selection and implementation of water purification system
Features & benefits:
In a fast-track cooperation project, the most feasible water treatment solution was found for Talvivaara’s sulphate containing mine waters. Based on VTT’s technical and economic feasibility study Talvivaara was able to select and adopt quickly a solution to treat their process waters. Their choice was a new VTT membrane technology which was seen as the most responsible, practicable and economical solution.
In spring 2011 Talvivaara, a Finnish base metals producer, began the search for a technical solution to treat sulphate containing process waters. The company contracted VTT to conduct an extensive assessment of alternative sulphate removal methods. A preliminary screening step on of several promising technologies was followed by a detailed exploration to find the treatment method that was the most viable technically and economically. Membrane filtration was ultimately selected as the best option. The experiments showed that it worked well for the specific use case and could easily be adapted for the mining waste water treatment.
Leif Rosenback, CTO at Talvivaara, had good things to say about working with VTT: “Our cooperation with VTT quickly resulted in a new concept for treating elevated levels of sodium sulphate in process waters. Based on VTT’s technical and economic feasibility study, we at Talvivaara came to the conclusion that membrane filtration technology could be adopted most quickly, and would be the fastest way of purifying the process waters.”
Talvivaara Mining Company Plc. is an internationally significant base metals producer with its primary focus on nickel and zinc. Talvivaara´s main asset is the Talvivaara nickel mine in Sotkamo, Finland. The Group supplies metal intermediaries to companies with metal refining operations.
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