PROPERTIES OF COAL, PROCESSES IN COAL MINING COMPANIES, METHODS OF COAL MINING IN THE WORLD

Abstract

Coal is a strategic and important source of quality of life, energy security and sustainable development. It is the cheapest energy source, second only to oil, which produces 40% of the world's electricity. the extraction of conventional coal fuel can pose a threat to human health by polluting the air and water. It can damage the earth and contribute to global warming. Impact on the environment Coal mining and consumption associated with traditional methods can affect all components of the environment, and these effects can be beneficial. harmful, permanent or temporary, irreparable or irreparable and reversible or irreversible in nature. These effects require thinking about changing coal production and consumption on a technological basis. Coal mining. Practices can have a quantitative and qualitative impact on mining systems and surrounding water systems. Considers the impact of coal mining on the development of water resources. Landslides, disturbances in hydrology, canals, floods, pollution of water resources, and declining water levels are the main effects measured in mining activities in the hydrological environment.