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UPM to Rebuild Biological Effluent Treatment Plant for Pulp Mill

20 Mar '12

2 min read

UPM will begin a large construction project at its Pietarsaari pulp mill to rebuild the mill's effluent treatment plant. The circa EUR 30 million investment will cover the rebuild of all of the main phases of wastewater treatment. The work will start immediately and is to be completed at the end of 2013.

”With the rebuild of the effluent treatment plant, we will improve the pulp mill's production efficiency and reduce its environmental impact. The rebuild will also enable further development of the mill in future”, says the mill's General Manager Kenneth Winberg.

The construction includes a new preliminary clarifier for fibres and an aeration basin, created mainly by excavating rock. The pumping station and compressor house will be completely new constructions.

Continuous improvement in water use

UPM is currently reviewing water management and efficiency in material use at several mills. By 2020, we aim to have reduced wastewater volume by 15% in pulp and paper production compared with levels in 2008. Sustainable use of water is one of our core environmental principles.

UPM treats all wastewater in primary and secondary effluent treatment plants before it is released into watercourses. The biological treatment stage is an efficient way to remove dissolved organic contaminants and nutrients from wastewater. The emission level of wastewater is regularly measured and monitored according to valid monitoring plans.

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