Preparation method and apparatus for catalysts in soil pollution remediation projects

By preparing modified zinc-iron oxide mineral piezoelectric materials and an electromagnetic-piezoelectric catalytic system, the problem of uneven mechanical energy input at the soil remediation site was solved, achieving efficient, low-cost, and low-pollution soil remediation results.

CN117899878BActive Publication Date: 2026-06-30JINAN UNIVERSITY
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Patent Information

Application Number
CN202410069195.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-01-17
Publication Date
2026-06-30
Estimated Expiration
2044-01-17

AI Technical Summary

Technical Problem

Existing piezoelectric catalysis technology struggles to achieve uniform, stable, and continuous mechanical energy input at soil remediation sites. Furthermore, the diverse types and properties of pollutants in soil lead to low efficiency, and existing technologies pose a risk of secondary pollution.

Method used

Modified zinc-iron oxide mineral piezoelectric materials were prepared using multilayer magnetically responsive zinc-iron oxide nanoblocks and brominated polyhydroxy calcium magnesium phosphate foam. Combined with an electromagnetic-piezoelectric catalytic system and a piezoelectric catalytic auxiliary system, uniform spraying of the catalyst and soil mixing were achieved through mechanical energy input.

Benefits of technology

It improves the catalytic efficiency of soil remediation materials, reduces the cost of catalyst use, reduces the risk of secondary pollution, and makes the soil remediation process simple, efficient, and adaptable to the remediation requirements of different soils.

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Abstract

This invention discloses a method and apparatus for preparing a soil pollution remediation engineering catalyst, specifically belonging to the field of soil remediation technology. The soil pollution remediation engineering catalyst is a modified zinc-iron oxide mineral piezoelectric material, mainly composed of multilayer magnetically responsive zinc-iron oxide nanoblocks supported on brominated polyhydroxy magnesium phosphate foam. The preparation method includes the preparation of multilayer magnetically responsive zinc-iron oxide nanoblocks, the preparation of brominated polyhydroxy magnesium phosphate foam, and the preparation of the modified zinc-iron oxide mineral piezoelectric material. The application apparatus of this soil pollution remediation engineering catalyst includes an electromagnetic-piezoelectric catalytic system and a piezoelectric catalytic auxiliary system. The modified zinc-iron oxide mineral piezoelectric material is forced to deform by magnetic force and the mechanical force generated by mixing, thereby activating persulfate degradation of pollutants in the soil. This invention features high treatment efficiency, low energy consumption, and environmental friendliness, providing a novel remediation method for soil remediation.
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