东南园艺2023，Vol.11Issue(6)：432-436,5.DOI:10.20023/j.cnki.2095-5774.2023.06.007
钝化剂对镉铅污染土壤修复效果研究
Study on Remediation Effect of Passivation Agent on Cd-Pb Polluted Soil
黄美珍 1张宇豪 2林童2
作者信息
- 1. 泉州市鲤城区农业农村和水利渔业综合服务中心,福建泉州 362000
- 2. 中国检验认证集团福建有限公司,福建福州 350015
- 折叠
摘要
Abstract
[Objective]Heavy metal pollution in farmland is a hidden danger to the safety of agricultural products.Using Cd-Pb polluted soil as the experimental site,this study explores effective passivation measures for the safe utilization of agricultural products in Cd-Pb polluted soil,providing practical and effective methods for the safe utilization of Cd-Pb polluted soil.[Method]By spreading 0.3 kg/m2 limestone powder as alkaline passivation agent in Cd-Pb polluted soil,the soil pH value and available heavy metal status before and after the application of limestone powder were detected,and the heavy metal content in the stems and leaves of Brassica rapa leaves after application was measured to evaluate the effectiveness of limestone powder passivation measures.[Result]After the application of limestone powder,the pH value of Cd-Pb polluted soil increased by 0.2,the available Cd content decreased by 0.04 mg/kg,and the available Pb content decreased by 1.38 mg/kg.The heavy metal content in the edible parts of the produced agricultural products was lower than the pollution limit value of GB 2726-2022 standard.[Conclusion]Limestone powder passivation treatment can achieve available Cd and Pb passivation in Cd-Pb polluted soil,and the passivated soil can achieve safe production of agricultural products.关键词
钝化剂/镉铅污染/耕地安全利用Key words
Passivato/Cd-Pb pollution/Safe use of cultivated land分类
农业科技引用本文复制引用
黄美珍,张宇豪,林童..钝化剂对镉铅污染土壤修复效果研究[J].东南园艺,2023,11(6):432-436,5.
