【摘要】 该文以衣康酸、三乙醇及乙二甲酸为原料成功合成衣康酸型超支化聚合物（IA-HBP），并将其用于铅锌矿区土样中重金属的去除，研究发现土样中Pb、Cd、Zn均能高效地被IA-HBP淋洗去除，且在t=140 min、施用浓度为3%、pH=4.0及固液比=1∶15时，IA-HBP对Pb、Cd、Zn的去除率分别为73.6%、78.6%和58.8%。土柱淋洗实验证明，IA-HBP适用于高浓度Pb污染土样的淋洗修复。相比于对照组而言，IA-HBP淋洗可提高土样的有机质含量和颗粒尺寸，降低重金属的生态毒性，为植物及微生物生长提供更有利的环境，但随着IA-HBP的添加，IA-HBP分子结构中的羧基释放出大量的H+，表明IA-HBP淋洗过程易发生土样酸化问题。综合考虑，结合IA-HBP的使用浓度对铅锌尾矿区土样重金属含量控制及植物、微生物生长情况来看，IA-HBP可应用于铅锌库区污染土样的生态修复。更多还原

【Abstract】 The itaconic acid hyperbranched polymer(IA-HBP) was successfully synthesized using itaconic acid, triethanol,and ethylenedicarboxylic acid. And then the IA-HBP was used to leach the soil of lead-zinc mining areas. Static leaching experiments showed that the IA-HBP had excellent removal effects on Pb, Cd, and Zn in the soil. Moreover, when the leaching time was 140 min, the application concentration was 3%, pH 4.0, and the solid-liquid ratio was 1∶15, the removal rates of Pb,Cd, and Zn were 73.6%, 78.6%, and 58.8%, respectively. In addition, the soil column leaching experiment proved that IA-HBP was suitable for leaching and remediation of high concentration Pb contaminated soil samples. Compared to the control group,the IA-HBP leaching could increase the organic matter content and particle size of soil, reduce the ecological toxicity of heavy metals, which could provide a more favorable environment for plant and microbial growth. However, with the addition of IA-HBP, the carboxyl groups of IA-HBP molecular structure could release a large amount of H+, indicating that soil acidification was prone to occur during the IA-HBP leaching process. Overall, based on the control of heavy metal content and the growth of plants and microorganisms in soil samples from lead-zinc tailings areas using IA-HBP concentration, IA-HBP could be applied for ecological restoration of polluted soil samples in lead-zinc tailings areas.更多还原