About Us Mill Tour Sales Environment News Contacts
 
Home Directions Français Mail

 

Protecting our aquatic environment
Previous page

Since 1990, the pulp and paper industry has invested significantly in environmental protection, and it continues to do so. Papier Masson, in order to reach its current level of environmental performance, invested tens of millions of dollars to modernize its facilities. This modernization program allowed the company to remain competitive in the marketplace, and it ensured that requirements for environmental protection would be met and even surpassed.

In 1995, we spent around $35 million on the construction of a secondary wastewater treatment plant. In 1999–2000, the mill upgraded its facilities at a cost of $158 million, installing a new thermo-mechanical pulping system (TMP) to replace the older equipment. Each year, Papier Masson invests more than $4 million in modernization and optimisation projects; and each of these projects involves a careful impact study so that the best plans may be chosen. Overall, the changes to our facilities and practices have registered very positive and quantifiable reductions in our environmental impact. Water consumption and effluent levels have been reduced by a drastic amount despite a 27% increase in paper production at the mill compared with 1992 levels.

Since 1992, our water consumption per tonne of paper has fallen by 29% (Figure 1). Thanks to the construction of the secondary wastewater treatment plant in 1995, we achieved a 78% reduction in the emission of suspended solids (SS)¹ (Figure 2), and a 98% reduction in the emission of dissolved organic matter (BDO5)² (Figure 3). We also eliminated toxicity³ in the water directed back into the river.

Residues management description


 
¹ SS: Solid matter composed of wood fibres, paper fibres, and natural micro-organisms emanating from the treatment of wastewater.
² BDO5: Quantity of organic matter which consumes, as it decomposes, the oxygen in water necessary for maintaining ecological balance.
³ Toxicity: Regulated laboratory test that measures the survival of rainbow trout directly exposed to treated wastewater for 96 hours. A survival rate of more than 50% indicates non-toxic water.


 


Figure 1


Figure 2


Figure 3

     

 

 

Environment : Environmental Report | Aquatic Environment | Effects Monitoring
Compliance Attestation
| Residues and Biosolids | Climate Change

About Us| Mill Tour | Sales | Environment | News | Getting there | Contacts | Home | Français

Copyrights © 2001 Papier Masson ltd, All Rights Reserved