An industrial solid waste-based anti-seepage material and a preparation method thereof

By preparing industrial solid waste-based anti-seepage materials and using phosphogypsum and carbide slag to adjust the pH value of the leachate, the storage problem of phosphogypsum and carbide slag was solved, resource utilization and environmental protection were achieved, and the anti-seepage performance was improved.

CN119707428BActive Publication Date: 2025-10-21SHENZHEN UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202411940578.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-10-21
Estimated Expiration
2044-12-26

AI Technical Summary

Technical Problem

In the existing technology, the stockpiles of phosphogypsum and carbide slag are large and their utilization rates are low, resulting in environmental pollution and waste of resources. It is necessary to find effective ways to utilize these resources.

Method used

Industrial solid waste-based anti-seepage materials, including phosphogypsum, carbide slag, sand and bentonite, are prepared by mixing and compacting. Carbide slag is used to adjust the pH value of phosphogypsum leachate, reduce the content of soluble elements, and improve the anti-seepage performance.

Benefits of technology

It realizes the resource utilization of phosphogypsum and carbide slag, reduces construction costs, reduces environmental pollution, improves anti-seepage performance, and facilitates material preparation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119707428B_ABST
    Figure CN119707428B_ABST
Patent Text Reader

Abstract

The application provides an industrial solid waste-based anti-seepage material and a preparation method thereof. The industrial solid waste-based anti-seepage material comprises the following raw materials: solid waste phosphogypsum, solid waste carbide slag, sand, bentonite and water. The industrial solid waste-based anti-seepage material is based on the solid waste utilization and material modification idea, and uses the industrial solid waste such as phosphogypsum and carbide slag which has large output and low utilization rate to study the anti-seepage material, so that the solid waste storage amount is reduced, and the cost is reduced. The carbide slag of the industrial solid waste-based anti-seepage material can adjust the percolate of the phosphogypsum, so that the pH of the percolate tends to be neutral, and the content of soluble elements phosphorus (P) and fluorine (F) is reduced. The anti-seepage material is environmentally friendly, safe, has good anti-seepage performance, and minimizes the influence on the surrounding environment, soil and underground water. The solid waste phosphogypsum and the carbide slag of the industrial solid waste-based anti-seepage material do not need any pretreatment and can be directly used, so that the convenience and economy are achieved.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Novel environment-friendly phosphogypsum-based impermeable material

    CN108751890A

  • Phosphogypsum-based mine filling cementing material

    CN115504753A