Biochar – sludge: a potential fertiliser and adsorbent for a circular and sustainable agriculture: PRESENTATION ONLY

Szabolcs Pap, Researcher – Water Technologist, Environmental Research Institute


Heating this to a high temperature under restricted oxygen conditions is referred to as pyrolysis.
Sludge can be produced from various processes, i.e.:

  • wastewater treatment or fish farms.

What is biochar? A new product? By-product?

• The new EU Fertilising Products Regulation 2019/1009 (FPR) – from summer 2022 (16th of July), introduces “optional harmonisation”.
• In the EU Fertilising Products Regulation – sewage sludge was excluded from the list of eligible feedstocks due to contaminants of emerging
• Possibility of amending if: technical progress and/or scientific evidence.
• Sewage sludge (SS) biochar is however authorised for use in agriculture in: Czech Republic, Sweden, Italy, Denmark, Estonia, Norway, Israel and Australia…

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