数字农科院2.0

生物炭老化对土壤重金属的固定效应研究进展

文献类型: 中文期刊

作者: 黄晓雅;;李莲芳;;朱昌雄

作者机构:

关键词: 重金属;;生物炭;;老化;;pH 值;;含氧官能团

期刊名称:农业资源与环境学报

ISSN: 2095-6819

年卷期: 2021 年

页码:

收录情况: 北大核心(2020版) ; CSCD(2020-2021年度) ; 农林核心(2020版)

摘要: 生物炭作为一种环境友好、稳定性强的钝化材料,因其巨大的比表面积、丰富的含氧官能团等特点成为目 前修复重金属污染土壤的有效材料。然而,除受本身特性影响外,生物炭(改性)对重金属的固定能力及效应还受 到材料老化过程及环境条件等因素的影响,导致生物炭(改性)固定土壤重金属的稳定性、持久性发生变化,从而 使得生物炭材料的钝化性能受到影响。本文重点综述了当前生物炭(改性)及其老化产物对土壤重金属固定效应的 相关进展,分析了生物炭及其老化产物固定重金属的相关机制及影响因素,并对生物炭及其老化过程可能带来的土 壤重金属固定长效性影响,以及今后以此为基础的钝化技术的研发趋势进行了展望,以期为利用生物炭钝化修复重 金属污染土壤及相关辅助技术研发提供支撑。

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