Iron-carbon ball-milling composite material, preparation method thereof and application thereof in anaerobic digestion system
By preparing iron-carbon ball milling composite materials, the problem of low carbon-nitrogen conversion efficiency in anaerobic digestion systems was solved, achieving high methane production and improved system stability, and realizing high-value utilization of waste biogas residue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-10
- Publication Date
- 2026-07-17
AI Technical Summary
The organic solid waste in existing anaerobic digestion systems has poor stability, low operating efficiency, low carbon and nitrogen conversion efficiency, and improper treatment of biogas residue can easily become a source of pollution.
Iron-carbon ball milling composite material was prepared by ball milling and high-temperature pyrolysis of biogas residue and iron-based materials. This process formed an Fe-C heterostructure interface, which enhanced electron transfer capacity and enriched various trace elements, forming a slow-release trace element library and alkaline minerals, thus optimizing the microbial environment.
Simultaneously, it improved the carbon and nitrogen conversion efficiency in the anaerobic digestion process, increased methane production and ammoniation rate, enhanced system stability, realized "waste treatment with waste" and material recycling, and reduced operating costs.
Smart Images
Figure CN122400261A_ABST