City opens nutrient recovery plant

Published on August 17, 2013 04:35 by Water Network Research, Official research team of The Water Network in Business

The City of Saskatoon and Ostara Nutrient Recovery Technologies Inc. have opened Canada's first commercial nutrient recovery facility at the city's Wastewater Treatment Plant.

The project is the first commercial plant of its kind in Canada to use Ostara's Pearl nutrient recovery process to recover phosphorus and nitrogen from the facility's waste water stream and transform them into Crystal Green, a slow-release and environmentally responsible enhanced efficiency fertilizer.

"The example of responsible stewardship of our resources begins at home," said Mayor Donald Atchison in a news release, noting that with the project, "we are proactively and cost-effectively tackling the growing issue of nutrient overload in our regional waterways. And that's good for taxpayers and good for the environment."

By removing potentially-polluting nutrients from the treatment facility's waste water stream, the technology helps the city meet nutrient discharge limits and overcome operational issues caused by the unintentional buildup of struvite scale in plant equipment.

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