Biochar from sewage sludge: the phos­phorus ferti­lizer for a safe and sustainable agriculture

Biochar from sewage sludge: the phos­phorus ferti­lizer for a safe and sustainable agriculture

The Danish EPA gives green light for appli­ca­tion of biochar from sewage sludge for use in farming: Biochar from sewage sludge can now be used as a ferti­lizer. If the pyro­lysis takes place at tempe­ra­tures > 500˚C for more than 3 minutes, and the process...