Waste Not: Urine

  • October 20, 2020
    6:00 pm - 7:30 pm

In a vain attempt at producing gold, 17th century alchemist Hennig Brand accidentally discovered elemental Phosphorus while heating within a glass retort the residues from boiled down urine. In modern times, this ‘liquid gold’ is seen as a valuable source of increasingly limited phosphorus and useful soluble nitrogen fertilizer. It’s application in the garden is (more…)