Mercury emission from spontaneously ignited coal gangue hill …
Coal mining waste material (coal gangue) is a serious problem in all coal-producing countries, consuming land resource and posing occupational and environmental hazards. In China alone, coal gangue inventory reaches 4.5–5 Gt, with an annual increase of 0.37–0.55 Gt. Coal gangue is commonly stored as gangue hills and known for the …
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