Pyrolysis Transforms Manure to Biochar Fertilizer
Cornell University scientists published their work in Nature Scientific Reports on how pyrolysis, or heating without oxygen present, can convert liquid dairy manure into biochar fertilizer with the nutrients retained. The researchers treated their biochar with carbon dioxide to enrich it with nitrogen. This enriched biochar produced greater plant growth and higher nitrogen uptake than manure biochar alone. “Coupling the local excess of manure nutrients with regional fertilizer needs could help farmers save money and alleviate environmental issues,”explained lead author Leilah Krounbi.