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 can be ...

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 can be ...

Compost piles are prepped for screening at the Tulare Lake Compost plant. Researchers say that natural fertilizers created from sewage sludge are an increasing source of wind-blown microplastics.

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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. What goes down your toilet can end up on ...

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FAIRBANKS, Alaska -- Environmental consultant Michael Pollen remembers standing on a pile of sewage sludge composting outside the Fairbanks treatment plant on a November day in 1997. The temperature ...