A method of rehabilitating a mine
By applying well-rotted compost and nitrogen-fixing cyanobacteria solution to the surface of the mine, combined with water management, the problems of high cost and short-lasting effects of traditional mine remediation have been solved, achieving rapid improvement of soil structure and ecological restoration, and building a sustainable ecological restoration system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHN ENERGY NEW ENERGY TECHNOLOGY RESEARCH INSTITUTE CO LTD
- Filing Date
- 2026-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional mine remediation methods are costly and have limited lasting effects. Physical covering cannot restore soil fertility, and the application of chemical fertilizers alone can lead to nutrient loss and secondary pollution. Bioremediation is difficult in extremely barren mine substrates.
The method combines well-rotted compost with nitrogen-fixing cyanobacterial active algal liquid. The compost is tilled and mixed to a depth of 15-30cm, the surface is sprayed with nitrogen-fixing cyanobacterial liquid, and water management is carried out to promote the formation of cyanobacterial crust and build a stable biological crust.
It can rapidly improve the physical and chemical properties of the mine matrix, increase porosity and water retention capacity, provide nutrient reserves, form a stable biological crust, prevent soil erosion, promote positive ecosystem succession, and create a green, ecological, and pollution-free environment.
Smart Images
Figure CN122397412A_ABST