Scientists have developed a method to recycle phosphorus from wastewater and integrate it into biochar, a soil superfood, effectively closing the loop on agricultural practices.
Biochar, created by incinerating organic material in an oxygen-deprived environment, acts as a sponge for rainwater underground while delivering essential nutrients, including phosphorus, for plant growth.
They have successfully enriched biochar with phosphorus collected from wastewater treatment plants, simultaneously recycling the nutrient, improving water quality, enhancing soil health, and reducing greenhouse gas emissions.
By transforming manure into biochar, the phosphorus extraction method offers an alternative to its disposal in landfills when not required for fertilization. This innovative approach could revolutionize agricultural practices by harnessing phosphorus runoff and reintroducing it into future crop seasons through biochar, contributing to sustainable farming and environmental stewardship.