Stickney operates a greenhouse where biosolids are mixed with soils in different proportions and tested on many different species to determine the optimum use for the biosolid product.
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Speaker
Joe CummingsEvidence Quote
“We will take our biosolids, that nutrient-rich fertilizer product, and we'll mix it with soils, blend it in different proportions, test it on many different species, and that's all to determine what is the optimum use for that biosolid.”
Source
How Chicago Cleans 1.4 Billion Gallons Of Wastewater Every Day | Deep Cleaned | Insider— InsiderCreated: 8/10/2026, 10:46:36 PM
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