Slurry pipeline
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A slurry pipeline is used in mining and quarrying to transport aggregate materials from a or quarry. This is done by crushing the material and mixing it with a fluid, usually water, and transporting in through a pipeline. Besides water-based slurries, there are also mud or oil-based slurries. At the end of the pipeline, the material is separated from the slurry. When water is used and subsequently removed it may contain environmentally hazardous materials and create an environmental problem. Typical materials that are transferred using slurry pipelines include coal, copper, iron, and phosphate concentrates, limestone, lead, zinc, nickel, bauxite and oil sands.