Minnesota Plant Finds Chemical Solution for Phosphorus Reduction

Minnesota Plant Finds Chemical Solution for Phosphorus Reduction
The pilot study setup includes two bulk chemical tanks for polyaluminum chloride. Peristaltic pumps and tubing enable discharge of the chemical over the basin walls and on top of the outfall weirs.

Effluent from the Virginia (Minnesota) Wastewater Treatment Plant discharges to Manganika Lake, which is impaired by eutrophication. The Minnesota Pollution Control Agency ordered the plant to achieve 0.07 mg/L monthly average total phosphorus by March 2023.

In 2015,...

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