生物炭修复Cd,Pb污染土壤的研究进展

随着矿产开采、冶炼等工业活动以及污水灌溉、施用污泥和劣质化肥等农业活动的进行，Cd，Pb等有害重金属不断进入农业环境中，对农田、菜地等造成污染。生物炭作为重要的土壤改良剂，在对Cd，Pb污染土壤的修复中表现出巨大的潜力。从生物炭的特性及制备、修复效果及其影响因素、修复机理等方面，对近年来国内外有关生物炭修复Cd，Pb污染土壤的研究成果和现状进行了总结，并对生物炭修复Cd，Pb污染土壤的发展前景和未来研究方向进行了展望。

Research Progresses in Remediation of Cd,Pb Contaminated Soils by Biochar

With the development of industrial activities such as mining and smelting,and agricultural activities such as sewage irrigation and using sludge and inferior chemical fertilizers,the harmful heavy metals such as Cd,Pb are continuously introduced into the agricultural environment,which leads to the contamination of farmland and vegetable plots. As an important soil amendment,biochar has shown great potential in remediation of Cd,Pb contaminated soil. The recent research achievements and status quo of remediation of Cd,Pb contaminated soil by biochar at home and abroad are reviewed from the aspects of biochar property,biochar preparation method,remediation effect and affecting factors,remediation mechanism,and so on. The development and research directions of remediation of Cd,Pb contaminated soil by biochar are also prospected.