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Bayerisches Staatsministerium für Ernährung, Landwirtschaft, Forsten und Tourismus
Bavaria
Ludwigstraße 2
80539 München
Website: External link to the authority
Fertilizer Production through Hydrothermal Carbonization (HTC) of Sewage Sludge
Concept development
Many farmers are heavily dependent on mineral fertilisers from abroad, the prices of which have tripled in recent times, putting pressure on value creation in arable farming.
To address these issues, farmers are increasingly seeking suitable technologies and concepts to retain nutrients regionally and save costs through sustainable nutrient recycling. Sewage sludge contains valuable nutrients, especially phosphorus, but is unfortunately regarded as a problematic residue due to its high pollutant load. Hydrothermal carbonization (HTC) of sewage sludge offers a promising solution: it neutralizes contaminants and recovers phosphate for agricultural use. The sewage sludge is carbonized in a pressure-resistant reactor, the phosphate is washed out, and it precipitates as struvite. This process could significantly enhance value creation in arable farming through low production costs for high-quality phosphate fertilizers and regional availabilty.
2025-12-23 11:37:56
Rural development 2014-2020 for Operational Groups (in the sense of Art 56 of Reg.1305/2013)
Dünger aus Klärschlamm GbR
Berliner Straße 19a
97616 Bad Neustadt a.d. Saale
Phone: 09771 9064 352
Email: eip.klaercarb@agrokraft.de
2024
completed
64,483
DE266
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