Södra Cell, Värö Bruk
Purac AB has successfully delivered a turnkey contract including a completely new biological treatment plant for Värö Bruk. The total contract value was approx. MSEK 40.
Värö Bruk is a TCF (Totally Chlorine Free) pulp mill, and the wastewater treatment plant treats mainly bleaching effl uents rich in COD from the mill. Also a small portion of water from the debarking station and landfill leachate is fed to the plant. The process includes cooling, biological treatment in three steps and final clarification. The produced sludge is pumped 700 m to the evaporation building where it is dewatered in a centrifuge, evaporated and finally burnt in a recovery boiler.