A comparison of the processing of biomass wastes using pyrolysis and hydrothermal carbonization
Dr Andrew Ross, The University of Leeds: PRESENTATION ONLY
(Free)
Where does biochar perform the best?
- Acidic soils pH correction, increased nutrient availability and immobilization of pollutants.
- Sandy soils Increased soil organic matter content and nutrient retention
- Poor quality soils, low nutrient and organic matter levels, degraded soils
Draft guidelines have been set out by both the International Biochar Initiative (IBI) and are set out in the “European Biochar Certificate” (EBC).
Criteria have been proposed to assess the merits of biochar from different feedstocks:
Don’t really mention hydrochar that much !
The agronomical properties of biochar /hydrochar typically measured include the levels of bioavailable macronutrients, elemental, moisture and ash contents, pH, stability and surface area.