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Author Wilmoth, R.C.
Title Type Book Whole
Year 1973 Publication Abbreviated Journal
Volume Issue Pages 159 pp
Keywords acid mine drainage
Abstract EPA 670 2 73 100 Spiral-wound reverse osmosis systems were tested on four different acid mine drainage discharges in west virginia and pennsylvania. Comparison studies were made of the hollow-fiber, tubular, and spiral-wound systems at a ferrous iron acid discharge; and of hollow-fiber and spiral-wound systems at a ferric iron acid discharge. At all sites, the limiting factor in high recovery operation was calcium sulfate insolubility. An empirical formula was developed for predicting maximum recovery. Application of reverse osmosis was demonstrated to be technically feasible for a large percentage of acid mine drainage discharges. A process called 'neutrolisis' was developed in which the reverse osmosis brine is neutralized and clarified, and the supernatant recycled to the influent to the reverse osmosis unit. In this manner, the neutrolosis process discharges only a high quality product water and a neutralized sludge. Neutrolosis recoveries as high as 98.8 percent were achieved at a ferric iron acid discharge site. (epa)
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Corporate Author Thesis
Publisher U.S. Government Print. Offfice Place of Publication Washington Editor
Language Summary Language Original Title
Series Editor Series Title Environmental Protection Agency, Technology Series Report Abbreviated Series Title
Series Volume (down) Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Applications of reverse osmosis to acid mine drainage treatment; 99; AMD ISI | Wolkersdorfer; TUB München Approved no
Call Number CBU @ c.wolke @ 9961 Serial 74
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Author Wilmoth, R.C.; Mason, D.G.; Gupta, M.
Title Treatment of ferrous iron acid mine drainage by reverse osmosis Type Journal Article
Year 1972 Publication Abbreviated Journal
Volume Issue Pages
Keywords acid mine drainage; coal; controls; environmental geology; Environmental Protection Agency; experimental studies; ferrous iron; iron; metals; methods; mining; Mocanaqua; organic residues; Pennsylvania; pollution; reverse osmosis; sedimentary rocks; treatment; United States 22, Environmental geology
Abstract
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume (down) Series Issue Edition
ISSN 0085-7068 ISBN Medium
Area Expedition Conference
Notes Treatment of ferrous iron acid mine drainage by reverse osmosis; 1976-011825; illus. incl. tables United States (USA); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 6846 Serial 208
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