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what is the environmental impact of mining apatite

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asked Oct 6 by sumaiyah (120 points)

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Apatite is the dominant mineral in phosphate ores. It may occur as carbonate-fluorapatite [Ca5 (PO4 , CO3 )3 (OH, F)] in sedimentary rocks and as hydroxyl-fluorapatite [Ca5 (PO4)3 (OH)] in igneous rocks. Apatite is commonly very insoluble in its original state as extracted from the earth and is practically unavailable as a plant phosphorus source.7 For this reason, drastic chemical processing with strong acids (such as Sulfuric acid, phosphoric or nitric acids) is necessary to produce soluble phosphate products. By virtue of its chemical behavior, apatite is generally associated with fluoride, which is a potential risk for human health. During the current decade there is a rising concerns about the environmental impacts of the phosphate mining industries. Most of the impacts are being reflected in the form of changes to local hydrology, water contamination, water consumption, air pollution and human risk.8,9 Environmental impact of phosphate mining and beneficiation which is directly or indirectly related to water resources is the subject of this review. The review result will provide a summarized update to the undergoing researches in this field.
answered Oct 10 by BobbieTennessee (170 points)
reshown Oct 18 by hershel

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