Here's a before-and-after shot of biosolids land application. The Hegarty mine reclamation site is located in Clearfield County, Pennsylvania, where approximately 15,000 wet tons of biosolids were applied in an effort to reclaim 85 acres. (Photos courtesy of the Mid-Atlantic Biosolids Association)
In the 1970s, a research project analyzed the effects of biosolids land application on an area devastated by coal mining — the first comprehensive bioassay on the topic, considering impacts to the entire ecosystem, down to the health of fauna and insects in the soil.
The study...
