Andritz will convert the digester to its Downflow Lo-Solids cooking technology and add a TurboFeed chip pumping system to improve the feed to the digester as well as a vapor reboiler to further reduce odorous emissions. In the brownstock washing area, the company will deliver a pressure diffuser washer.
This upgrade is a follow-up order to the recovery boiler that was delivered and started up successfully in the Frantschach mill in 2013. Mondi’s investment will help to improve the use of resources and further increase the mill’s energy efficiency and competitiveness.