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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. |
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Figure 1

Figure 2

Figure 3
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