生物炭材料的制备与改性及其在土壤修复中的应用

Preparation and modification of biochar material and its application in soil remediation

综述了生物炭的制备和改性方法,并分析了不同工艺对生物炭理化性质的影响,加深了对生物炭的认识。作为吸附材料,综述了土壤中重金属和有机物的去除以及生物炭的主要作用机理。总结了作为土壤改良剂的生物炭改善土壤pH、养分、氮、磷流失的趋势以及今后的应用趋势。同时,分析了生物炭的潜在风险,以有效避免对环境的可能危害。

The preparation and modification methods of biochar are reviewed,and the influence of different processes on the physical and chemical properties of biochar is analyzed,which deepens the understanding of biochar.As an adsorbent,the removal of heavy metals and organics from soil and the main action mechanism of biochar are reviewed.The trend of biochar as a soil amendment to improve soil pH,nutrients,nitrogen and phosphorus loss and its future application trends are summarized.At the same time,the potential risks of biochar are analyzed to effectively avoid possible harm to the environment.