Unveiling the Role of Dissolved Organic Matter on the Hg Phytoavailability in Biochar-Amended Soils.

Wenhao Chen,Zhigang Yu,Xu Yang,Tantan Wang,Zihao Li, Xin Wen,Yubo He,Chang Zhang

International journal of environmental research and public health（2023）

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摘要

Biochar can effectively reduce the phytoavailability of mercury (Hg) in soil, but the mechanisms are not fully understood. In this study, the dynamic changes in Hg content adsorbed by the biochar (BC-Hg), Hg phytoavailability in the soil (P-Hg), and soil dissolved organic matter (DOM) characteristics were determined over a 60-day treatment period. Biochar obtained at 300 °C, 500 °C and 700 °C reduced the P-Hg concentration assessed by MgCl 2

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biochar,dissolved organic matter,mercury,pyrolysis temperature,soil remediation

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