The Metropolitan Water Reclamation District in Chicago has announced plans to team with a Canadian company to capture and process pollutants from water and turn it into crop and lawn fertilizer. 

“Robert F. Kennedy Jr. and a representative of the Metropolitan Water Reclamation District announced Tuesday that a new technology planned for the Stickney Water Reclamation Plant will remove nutrient pollution from wastewater and convert it to pellets to be sold as fertilizer for crops and lawns…
‘Ostara’s advanced nutrient recovery technology not only reduces nutrient load but helps protect precious area waterways that are part of Mississippi River basin,’ said Kennedy, son of the late Sen. Robert Kennedy and member of Ostara’s board of directors.
The announcement was made at the Water Environment Federation’s 86th Annual Technical Exhibition and Conference at McCormick Place.

This technology should produce approximately 10,000 – 15,000 tons of fertilizer annually, according the Metropolitan Water Reclamation District, which serves Cook County. Crystal Green, Ostara’s fertilizer company, will purchase the product at $400 per ton from the water reclamation district.”
Read more about the process and its potential impact at the link above.