Chemical Leaching Remediation of Heavy Metal Arsenic Contaminated Soil Engineering Application Case
The case in this paper involves a heavy metal arsenic contaminated plot in Shanghai.According to the previous investigation results,the maximum arsenic multiple was 0.83 times,the pollution depth was 1.2 m,and the amount of contaminated square was 301.2 m3.The ectopic chemical leaching technology was selected to repair the block.Before the formal construction,the dosage of repair agent was determined by pilot and pilot tests.After the completion of the restoration project,the soil was evaluated and tested to achieve the restoration target.No secondary pollution occurred in the construction process,and the successful completion of the project provides valuable experience for dealing with other similar projects.
arsenicheavy metalssoil remediationectopic chemical leachingenvironmental protection