need scrubberbox liquidunderground coal mines,Trump's promises have some coal miners optimistic — so they're .Dec 27, 2017 . While some coal miners continue looking for work in the industry, others look to careers outside of coal for more stability.need scrubberbox liquidunderground coal mines,Germany's Coal Mines Could Have a Second Life in Clean Energy .Dec 1, 2017 . Germany's Prosper-Haniel coal mine is a symbol of the challenges and opportunities facing the country—and coal-producing states everywhere.
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Coal mining - Wikipedia
Coal mining processes are differentiated by whether they operate on the surface or underground. Many coals extracted from both surface and underground mines require washing in a coal preparation plant. Technical and economic feasibility are evaluated based on the following: regional geological conditions; overburden.
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Coal mining | World Coal Association
Coal mining is only a temporary use of land, so it is vital that rehabilitation of land takes place once mining operations have stopped. In best practice a detailed rehabilitation or reclamation plan is designed and approved for each coal mine, covering the period from the start of operations until well after mining has finished.