Landscape water body sediment repairing agent as well as preparation method and application thereof

By using a ferrate-loaded sediment remediation agent for landscape water bodies, the problems of sediment accumulation and greenhouse gas emissions in landscape water bodies have been solved, achieving efficient pollutant conditioning and carbon sequestration effects, and improving the quality of the water environment.

CN121020932APending Publication Date: 2025-11-28TONGJI UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202510986792.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

Existing methods for conditioning bottom sediment in landscape water bodies cannot effectively solve the problems of sediment accumulation, blackening and odorization, and greenhouse gas emissions. They also suffer from problems such as chemical pollution and long bioremediation cycles, making it difficult to achieve fundamental removal of pollutants and reduction of carbon emissions.

Method used

A landscape water body sediment remediation agent loaded with ferrate is used. This agent is produced by mixing dewatered sludge with pig bone powder, heating and calcining to make sludge biochar, and then mixing it with ferrate through ball milling. This forms a remediation agent with a porous structure and high adsorption performance, which is used for in-situ treatment of sediment.

Benefits of technology

It achieves reduced greenhouse gas emissions in sediment, carbon sequestration and emission reduction, degradation of organic pollutants, improved sediment structure, enhanced oxidation capacity, and possesses highly efficient pollutant conditioning and carbon sequestration capabilities.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121020932A_ABST
    Figure CN121020932A_ABST
Patent Text Reader

Abstract

The invention discloses a landscape water body bottom mud repairing agent as well as a preparation method and application thereof. The specific method comprises the following steps: heating and drying dewatered sludge discharged from a sewage plant, then mixing with pig bone powder, grinding, sieving, compacting, sealing and wrapping with tinfoil, and heating and calcining to obtain a sludge biochar primary body; the obtained sludge biochar primary body is subjected to acid pickling and drying, and a sludge biochar finished product is prepared; the obtained sludge biochar finished product and ferrate are subjected to ball milling and mixing, and the bottom mud repairing agent with the multifunctional conditioning effect is prepared. The prepared remediation agent has adsorbability, oxidability and structure conditioning capacity, and can be used for improving the physicochemical properties of the landscape water body sediment, promoting the degradation of organic pollutants, reducing the anaerobic property of the sediment and the release of greenhouse gases, and realizing the synergistic effect of sediment pollution control and water body ecological remediation.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Phosphorus-absorbing biochar prepared by co-pyrolysis of kitchen waste bones and organic solid waste

    CN111672467A

  • Preparation method of efficient biomass derived carbon magnetic catalyst

    CN117463344A