Sewage sludge can find a second life on farm fields. Here’s how it’s made
What goes down your toilet can end up on farm fields across the United States. Biosolids, or sewage sludge, are the solid byproducts of the wastewater treatment process. Rich in nutrients, they ...
Residue from human waste has long wound up as farm fertilizer. Some neighbors hate it
When Leslie Stewart moved to her home in a rural expanse of Lincoln County outside of Oklahoma City more than 20 years ago, ...