Coal mines are significant water consumers, utilizing substantial volumes for production, heating, fire protection, bathing, coal washing, coking, and other operations. They also represent major water drainage sources. Relying solely on municipal water supply systems not only increases water supply volume but also results in significant resource waste.
Since many water usage scenarios have relatively flexible water quality requirements, treated mine drainage water can easily meet operational standards. Establishing a water reuse system for mine drainage creates a secondary water source, reduces fresh water extraction, minimizes wastewater discharge, and decreases pollution of receiving water bodies while reducing environmental control investments.
Mine drainage water reuse conserves water resources, eliminates environmental pollution, and delivers multiple benefits. This approach achieves wastewater resource utilization and represents the most effective solution for addressing both water conservation and pollution control challenges in coal mining operations.
Treating mine drainage water to general use standards requires capital investment comparable to drawing water from 30 kilometers away, while achieving higher quality reusable water standards equates to drawing water from 40-60 kilometers distant.