Reduce the Need for Phosphate Ore Imports
Recovering Phosphorus from Sewage Sludge Ash
Tags: Hokkaido University, Japan, Energy & Environment, Industrial Automation & Manufacturing
Researchers at Hokkaido University have developed a method to recover phosphorus from sewage sludge ash, which remains after the sludge is burned for power generation. By using chemical treatment and heat, they can efficiently separate phosphorus compounds, reducing the reliance on depleting phosphorus ores. This method lowers energy requirements, CO2 emissions, and costs compared to conventional phosphorus recovery processes. The recovered phosphorus chloride can be further converted into phosphoric acid, useful in applications like fertilizers and medicines. The process could significantly reduce Japan’s need for phosphorus imports.
IP Type or Form Factor: Process & Method; Material
TRL: 4 - minimum viable product built in lab
Industry or Tech Area: Circular Economy & Waste Upcycling; Sustainable Raw Materials
