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Updated: Aug 8, 2025

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites
Published on: November 28, 2014
The effect of biochar prepared at different pyrolysis temperatures on microbially driven conversion and retention of
Haihou Wang1,2, Tianyun Shao3, Yujie Zhou3
1Suzhou Academy of Agricultural Sciences, Institution of Agricultural Sciences Taihu Lake District, Suzhou, 215155, China.
Abstract:
Aerobic composting is one of the most economical ways to produce organic fertilizer from agricultural wastes. In this research, we independently developed a simple composting simulation reactor. The effects of biochar pyrolysised at different pyrolysis temperatures (B1-450 °C; B2-550 °C; and B3-650 °C) on nitrogen conversion (Total nitrogen (TN), ammonium nitrogen (NH4 +-N), nitrate nitrogen (NO3 --N), cumulative amount of ammonia (CEA) and nitrous oxide (CEN) emission, nitrogen loss rate (NLR), etc.) and functional microbial community (cbbL, cbbM and nifH) structure in the composting system were studied. Results showed that the addition of biochar significantly improved the efficiency of composting, increased the NO3 --N concentration and reduced the NLR (%) in the composting system (B3 (31.4 ± 2.73)
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