一种生物碳源优选方法及其在采空区原位净化高硫酸盐矿井水上的应用
By selecting inexpensive agricultural by-products as carbon sources and combining them with a multi-index comprehensive evaluation model, the problems of high treatment costs and low sulfate removal rates in high-sulfate mine water have been solved, achieving low-cost and high-efficiency mine water purification and promoting resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YUNLONG LAKE LAB OF DEEP UNDERGROUND SCI & ENG
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for treating high-sulfate mine water are costly, have low sulfate removal rates, and expensive carbon sources, resulting in persistently high costs for mine water treatment.
By screening and selecting inexpensive agricultural by-products as carbon sources, and using the TOPSIS multi-index comprehensive evaluation model, combined with subjective weighting and entropy weighting methods, the most suitable carbon source materials were determined. In-situ purification of high sulfate mine water in goaf areas was carried out to construct a carbon source optimization method, including material cost, carbon release performance and sulfate-reducing bacteria activity analysis.
It significantly reduced the cost of mine water treatment, improved sulfate removal efficiency (suspended solids removal rate ≥95%, sulfate removal rate ≥50%), achieved green and low-carbon treatment of mine water, reduced the cost per ton of water treated at surface mine water treatment plants, and promoted the resource utilization of agricultural waste.
Smart Images
Figure CN121342231B_ABST