改性材料对土壤重金属污染修复的进展研究

化学修复是土壤重金属污染治理的技术手段之一,使用修复材料对土壤中的重金属进行吸附和固定是其进行土壤修复的主要途径.为了提高修复材料的性能,增强对重金属的吸附性和固定作用,减少土壤环境多样性对修复材料性能的影响,通过化学及物理方法对石灰石、磷酸盐等传统化学修复材料进行改性,提升在土壤修复中的性能,培育和筛选应用范围广、抗干扰性强,环境适应性好的改性材料是近一段时间在土壤修复方向研究的重点.

Research Progress on Remediation to Heavy Metal Contaminated Soil by Modified Materials

Chemical remediation is one of the technical means in solving heavy metal pollution of soil. Adsorption and fixa-tion of heavy metal is the main method of soil remediation using remediation materials. The recent research emphasis of soil re-mediation are improving the conventional chemical remediation material( limestone, phosphate) through physical and chemical methods, cultivating and selecting the improved material with high interference, wide range of application and good environmen-tal suitability in order to increase the property with good fixation of heavy metal and reduce the influence from the environmental complexity.