Research Review of Coal Mine Water Treatment Technology
Yinlei Li *
School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450000, China.
Yucong Wang
School of Materials Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450000, China.
*Author to whom correspondence should be addressed.
Abstract
A large amount of mine water is produced during coal mining. The treatment and reuse of mine water is a significant research topic in the environment with shortages of water resources. In this paper, the characteristics of coal mine water are systematically reviewed based on previous studies. The water quality conditions of coal mine water, the particle size of suspended particles, and the aggregation stability of particles in coal mine water were reviewed in summary. The application of Stokes law and EDLVO theory in the field of water sedimentation in coal mines is illustrated. The types of sedimentation tanks used in the settlement of coal mine water and their characteristics are also reviewed according to the treatment technology. It provides significant assistance in the selection of sedimentation tanks. And a brief analysis of the future development trend and research focus of coal mine water treatment technology was made in the end.
Keywords: Coal mine water, water reuse, treatment technology, EDLVO theory, sedimentation tank