Biochar (Jul 2022)

Preparation and characterization of MgO hybrid biochar and its mechanism for high efficient recovery of phosphorus from aqueous media

  • Yueru Fang,
  • Amjad Ali,
  • Yuxi Gao,
  • Peng Zhao,
  • Ronghua Li,
  • Xianxian Li,
  • Junxi Liu,
  • Yuan Luo,
  • Yaru Peng,
  • Hailong Wang,
  • Hongbin Liu,
  • Zengqiang Zhang,
  • Junting Pan

DOI
https://doi.org/10.1007/s42773-022-00171-0
Journal volume & issue
Vol. 4, no. 1
pp. 1 – 15

Abstract

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Highlights Co-pyrolysis of magnesite with food waste generated MgO hybrid biochar composite. MgO hybrid biochar showed a high phosphorus recovery capacity (523.9 mg/g). Phosphorus recovery was controlled by MgHPO4 formation and electrostatic attraction. MgO hybrid biochar recovered > 98% of P from solution and bio-liquid wastewater. Recovered phosphorus is a slow-release fertilizer available for agriculture use.

Keywords