Characterization of Slow Pyrolysis Biochars: Effects of Feedstocks and Pyrolysis Temperature on Biochar Properties
BOKU University · Austrian Institute of Technology · +1 more institution
Abstract
Biochars are increasingly used as soil amendment and for C sequestration in soils. The influence of feedstock differences and pyrolysis temperature on biochar characteristics has been widely studied. However, there is a lack of knowledge about the formation of potentially toxic compounds that remain in the biochars after pyrolysis. We investigated biochars from three feedstocks (wheat straw, poplar wood, and spruce wood) that were slowly pyrolyzed at 400, 460, and 525°C for 5 h (straw) and 10 h (woodchips), respectively. We characterized the biochars' pH, electrical conductivity, elemental composition (by dry combustion and X-ray fluorescence), surface area (by N adsorption), water-extractable major elements,…
Citation impact
- FWCI
- 28.58
- Percentile
- 100%
- References
- 83
Authors
9Topics & keywords
- Biochar
- Pyrolysis
- Environmental chemistry
- Chemistry
- Characterization (materials science)
- Waste management
- Charcoal
- Environmental science