And tree waste isn’t the only unwanted product that can be used to make this compost. Cities could also nourish their trees with a little assistance from their human residents: by recycling their poop.
A growing number of wastewater treatment plants are devising ways to produce safe soil amendments based on recycled biosolids—the feces and other organic matter that pass through water treatment plants and also often end up in landfills or incinerators. DC Water, which provides water and sewer services for the US capital, is one such example, creating a heat- and pressure-treated biosolids product called Bloom. It expects to sell
→ Continue reading at Wired - Science