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Coal pollution mitigation is a series of systems and technologies that seek to mitigate health and environmental impact of burning coal for energy. Burning coal releases harmful substances that contribute to air pollution, acid rain , and greenhouse gas emissions.
A 2004 study commissioned by environmental groups, but contested by the United States Environmental Protection Agency, concluded that coal burning costs 24,000 lives a year in the United States. [30] More recently, an academic study estimated that the premature deaths from coal related air pollution was about 52,000 each year. [31]
As a type of thermal power station, a coal-fired power station converts chemical energy stored in coal successively into thermal energy, mechanical energy and, finally, electrical energy. The coal is usually pulverized and then burned in a pulverized coal-fired boiler. The heat from the burning pulverized coal converts boiler water to steam ...
In general lignite burning coal-fired power stations with subcritical boilers (in which bubbles form in contrast to the newer supercritical steam generator) emit the most. [1] [2] The Chinese national carbon trading scheme may follow the European Union Emission Trading Scheme in making such power stations uneconomic to run.
A coal surface mining site in Bihar, India A mountaintop removal mining operation in the United States. The health and environmental impact of the coal industry includes issues such as land use, waste management, water and air pollution, caused by the coal mining, processing and the use of its products.
Photomicrograph made with a scanning electron microscope and back-scatter detector: cross section of fly ash particles. Fly ash, flue ash, coal ash, or pulverised fuel ash (in the UK)—plurale tantum: coal combustion residuals (CCRs)—is a coal combustion product that is composed of the particulates that are driven out of coal-fired boilers together with the flue gases.
Water usage is one of the main environmental impacts of electricity generation. [7] All thermal power plants (coal, natural gas, nuclear, geothermal, and biomass) use water as a cooling fluid to drive the thermodynamic cycles that allow electricity to be extracted from heat energy.
Coal phase-out is an environmental policy intended to stop burning coal in coal-fired power plants and elsewhere, and is part of fossil fuel phase-out. The health and environmental benefits of coal phase-out, such as limiting respiratory diseases and biodiversity loss , are greater than the cost. [ 4 ]