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Water/Waste Processing e-News / Wastewater

Nutrient recovery technology to improve water quality at Wisconsin treatment plant

June 10, 2014
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<photocredit>Photo copyright Ostara Nutrient Recovery Technologies</photocredit>

The first nutrient recovery facility in Wisconsin has been launched by Ostara Nutrient Recovery Technologies, in collaboration with the Madison Metropolitan Sewerage District. The plant will remove excess phosphorus from water supplies in Dane County and will relieve stress on freshwater resources in the area.

Nutrient pollution has been a serious problem for farmers and for water agencies across the country for years. One of the most common pollutants is phosphorus, which also contributes to the growth of toxic algae. With the latest addition to operations at the Nine Springs wastewater treatment plant, phosphorus will be picked up from wastewater during treatment, making the end result far more eco-friendly.

The new technology will enable the plant to improve its digestion process and will help it to comply with nutrient discharge regulations. It will also optimize rates of recoverability of nutrient resources that could later be reused. Thanks to the new equipment, Nine Springs will also produce a compost-like, safe blend to be used as fertilizer.

In turn, the fertilizer will be included in a product manufactured by Wisconsin-based company Spring Valley. The producer explained that its eco-friendly fertilizer, called Crystal Green, can reduce phosphorus pollution and help protect the environment, without compromising crops for farmers. The product is an all-purpose garden blend that focuses on sustainability, according to Dave Wacker, general manager of manufacturer Spring Valley.

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