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	Author	Stoddard, C.K.
	Title	Abatement Of Mine Drainage Pollution By Underground Precipitation			Type	Journal Article
	Year	1973	Publication	Environmental protection technology series	Abbreviated Journal
	Volume		Issue		Pages	125
	Keywords
	Abstract	Laboratory tests with synthetic acid mine water show the sealing effect of the gelatinous precipitate that forms when hydrated lime or powdered limestone is added in a simulated mine entry closed by a porous barrier.^Field tests were conducted in a recently abandoned coal mine.^Hydrated lime and limestone slurries were pumped into the mine water behind rubble barriers through 2-inch steel pipes to test the laboratory findings.^The outflow was observed at weirs attached to the ends of two 12-inch diameter drain pipes.^The results indicated that only temporary sealing of the outflow was achieved and that neutralization took place when the interior water flow conditions were favorable.
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	Language		Summary Language		Original Title
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	Area		Expedition		Conference
	Notes	Abatement Of Mine Drainage Pollution By Underground Precipitation; Washington, DC; U. S. Government Print. Office; Opac			Approved	no
	Call Number	CBU @ c.wolke @ 6927			Serial	229
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