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Author : Bituminous Coal Research, Inc
Publisher : Unknown
Page : 158 pages
File Size : 53,7 Mb
Release : 1970
Category : Acid mine drainage
ISBN : MSU:31293012900415
Author : Bituminous Coal Research, Inc
Publisher : Unknown
Page : 96 pages
File Size : 53,5 Mb
Release : 1970
Category : Acid mine drainage
ISBN : LCCN:73608260
Author : Bituminous Coal Research, Inc
Publisher : Unknown
Page : 282 pages
File Size : 51,6 Mb
Release : 1970
Category : Acid mine drainage
ISBN : UOM:39015002033242
Author : Roger C. Wilmoth
Publisher : Unknown
Page : 110 pages
File Size : 54,6 Mb
Release : 1977
Category : Acid mine drainage
ISBN : UOM:39015104957199
Author : David G. McDonald,Alten F. Grandt
Publisher : Unknown
Page : 3 pages
File Size : 55,9 Mb
Release : 1981
Category : Acid mine drainage
ISBN : OCLC:42402875
Author : Industrial Environmental Research Laboratory (Cincinnati, Ohio)
Publisher : Unknown
Page : 250 pages
File Size : 41,5 Mb
Release : 1983
Category : Acid mine drainage
ISBN : UOM:39015095300508
Author : Roger C. Wilmoth
Publisher : Unknown
Page : 72 pages
File Size : 54,5 Mb
Release : 1978
Category : Acid mine drainage
ISBN : IND:39000008648037
Author : Anonim
Publisher : Unknown
Page : 28 pages
File Size : 46,9 Mb
Release : 1968
Category : Mine water
ISBN : UOM:39015078537878
Author : Industrial Environmental Research Laboratory (Cincinnati, Ohio)
Publisher : Unknown
Page : 252 pages
File Size : 49,6 Mb
Release : 1983
Category : Acid mine drainage
ISBN : STANFORD:36105126783153
Author : Anonim
Publisher : Unknown
Page : 32 pages
File Size : 47,6 Mb
Release : 1982
Category : Acid mine drainage
ISBN : UOM:39015078460352
Author : Anonim
Publisher : Unknown
Page : 252 pages
File Size : 53,8 Mb
Release : 1983
Category : Electronic
ISBN : IND:30000090155049
Author : John J. Metesh
Publisher : Unknown
Page : 28 pages
File Size : 46,9 Mb
Release : 1998
Category : Acid mine drainage
ISBN : MINN:31951D02973540V
This paper describes the results and conclusions gained from the three demonstration projects. The paper concentrates on the characteristics of the processed material, equipment production, and the cost of the operation. Samples taken from windrows during the crushing operation were tested to determine hardness and gradations before and after crushing. The test results are included in the appendix. Cost varied from $6.38 to $18.83 per cubic yard, including roadbed preparation, crushing and blading. Rocks and boulders to?16-inch (406 millimeter) maximum size were crushed. The processed material has a maximum size of 2 to 3 inches (50 to 75 millimeters).?The product produced by the crusher offers a viable alternative for aggregate on a road surface, particularly as a road surface cushion material, where the quality and expense of standard crushed aggregate are not warranted.
Author : Roger C. Wilmoth
Publisher : Unknown
Page : 92 pages
File Size : 50,7 Mb
Release : 1974
Category : Acid mine drainage
ISBN : OCLC:1845638
Author : Louis B. Whitesell,Robert L. Huddleston,Ray C. Allred,Continental Oil Company. Research and Development Department
Publisher : Unknown
Page : 96 pages
File Size : 54,9 Mb
Release : 1971
Category : Acid mine drainage
ISBN : MINN:30000010095838
The purpose of the study was to determine if the abilities of certain bacteria to oxidize ferrous iron or to convert sulfate to hydrogen sulfide could be applied to the neutralization and subsequent removal of iron from difficult-to-treat mine drainage waters. If one or both of these concepts could be successfully utilized, the expense of adequately treating these types of problem waters might be significantly reduced. Laboratory studies demonstrated that both pure cultures and fresh field cultures of acidophilic iron bacteria could readily oxidize ferrous iron in both synthetic and natural acid mine drainage waters. Approximate requirements of oxygen, carbon dioxide, nitrogen and phosphorus by the iron bacteria were established. Limestone neutralizations of partially oxidized acid mine waters were conducted. Although sulfate-reducing bacteria were isolated, attempts to grow the cultures or produce hydrogen sulfide at pH values below 5.5 were unsuccessful.
Author : United States. Environmental Protection Agency
Publisher : Unknown
Page : 968 pages
File Size : 52,7 Mb
Release : 1973
Category : Environmental protection
ISBN : UCSD:31822029011426
