Sustainable Water Management: The Heart of Our Pulp and Paper Mills

When people think of paper manufacturing, the first natural resource that comes to mind is probably trees. But water plays an equally important role in our industry. That’s why sustainable water management is one of our top priorities.

The location of our facilities shows how important water is to our manufacturing process. We’ve built our mills near abundant water supplies, such as the shores of rivers, to draw water for our operations. Managing these natural resources is important to us and to the communities in which we live.

Water Use at Domtar
In 2017, our pulp and paper mills used enough water to fill 164,000 Olympic-sized swimming pools. But because of our extensive water recycling loops, we can reuse that water an average of 10 times in the mill before we treat it one final time in our onsite wastewater treatment plants. Of the water we bring into our mills, about 90 percent is returned to its original source. The other 10 percent evaporates or becomes part of our products and byproducts.

The water we do use — 94 percent of which comes from surface-water sources such as lakes and rivers — does a lot of work. It’s used to wash and transport pulp, dilute and prepare process chemicals, generate steam and electricity, carry energy and raw materials throughout the mill, and clean and cool equipment.

Each of our mills has a unique water footprint. Mill age, the kind of equipment we use and the types of pulp and paper products we produce are the primary drivers of how much water we use.

For example, specialty papers, such as medical paper, require more water to produce than everyday copy paper. That’s because specialty papers are generally manufactured using shorter runs with more grade changes. They also have more stringent quality requirements, such as FDA requirements for food packaging, which can limit opportunities to reuse water.
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