Son of Toxic Sludge: The Smell That Won’t Die

Feb 18, 2010Charles MargulisFood

Sewage sludge is the mucky residue of municipal wastewater treatment operations, consisting largely of human feces. Repackaged as “biosolids,” sludge is sold or given away to farmers and homeowners for use as a nutrient-rich fertilizer. But when used to grow food, our...