Botnia's Rauma mill invests in bleaching

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Botnia is investing EUR 45 million in developing the bleaching process and
wastewa-ter treatment at its Rauma mill. The mill's bleaching process will be
modified to allow the production of both ECF (elemental chlorine free) and TCF
(totally chlorine free) bleached pulps in the future. Work will begin
immediately and is due for completion in May 2007. 

The purpose of the investment is to improve pulp quality characteristics in
line with customers' changing needs. The investment will also improve
cost-effectiveness and raise the mill's production capacity. 

The advantages of ECF bleaching include higher pulp brightness and better
runnabil-ity on the paper machine, both of which are important from the point
of view of pa-permaking and the final paper products. The ECF bleaching process
is less energy-consuming than the TCF process. Wood consumption per tonne of
pulp produced is also smaller than with the TCF process. Greater production
efficiency will raise the mill's production capacity by 10 %. 

The technology behind ECF bleaching has undergone considerable development in
recent years. It involves the use of chlorine dioxide alongside oxygen
bleaching chemicals. In terms of environmental impact, there is little
difference between the ECF and TCF bleaching processes. 

For more information contact:
Kaija Pehu-Lehtonen, Vice President and Mill Manager, Rauma, tel. +358 1046 46
200 
Ilkka Hämälä, Senior Vice President, Supply Process, tel. +358 50 598 8617

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