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The Oxidation Of Pyrite Associated With Coal Mines
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Book Synopsis The Oxidation of Pyrite Associated with Coal Mines by : Walter C. Lorenz
Download or read book The Oxidation of Pyrite Associated with Coal Mines written by Walter C. Lorenz and published by . This book was released on 1967 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Oxidation of Coal Mine Pyrites by : Walter C. Lorenz
Download or read book Oxidation of Coal Mine Pyrites written by Walter C. Lorenz and published by . This book was released on 1963 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Oxidation of Coal Mine Pyrite by : Corodon Scott Clark
Download or read book The Oxidation of Coal Mine Pyrite written by Corodon Scott Clark and published by . This book was released on 1965 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Oxidation of Pyrites in Chlorinated Solvents by : Joseph C. Troy
Download or read book Oxidation of Pyrites in Chlorinated Solvents written by Joseph C. Troy and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Near-neutral Oxidation of Pyrite in Coal Slurry Solids. Quarterly Report, 1 December 1994--28 February 1995 by :
Download or read book Near-neutral Oxidation of Pyrite in Coal Slurry Solids. Quarterly Report, 1 December 1994--28 February 1995 written by and published by . This book was released on 1995 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research project we plan to determine the rate of oxidation of pyrite associated with coaly particles when the pH of the surrounding environment is held at approximately 7.8. Coaly particles that contain pyrite are generated during the preparation of Illinois Basin coal for market. These particles are discharged to an impoundment, which eventually must be reclaimed. The purpose for reclamation is either to prevent the Generation of acidic solution as the pyrite in the coal slurry solid reacts with air, or to prevent the migration of the acidic solution to a groundwater aquifer. The reclamation is usually accomplished by covering the impoundment with a four-foot-thick layer of topsoil. One possible alternative method for reclamation of a coal slurry impoundment is to mix in alkaline residue from the fluidized-bed combustion of coal. This codisposal would slow the production of acid and would also neutralize any acid produced. If the codisposal method is found to be environmentally acceptable, it will save the coal mining companies part of their cost of reclamation, and also provide a safe and useful disposal outlet for a portion of the residue that is Generated by the fluidized-bed combustion of coal.
Book Synopsis USDA Forest Service General Technical Report NE. by :
Download or read book USDA Forest Service General Technical Report NE. written by and published by . This book was released on 1975 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Near-neutral Oxidation of Pyrite in Coal Slurry Solids. Technical Report, March 1--May 31, 1995 by :
Download or read book Near-neutral Oxidation of Pyrite in Coal Slurry Solids. Technical Report, March 1--May 31, 1995 written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research project are determining the rate of oxidation of pyrite associated with coaly particles (coal slurry solid) when the pH of the surrounding environment is held at approximately 7.8. Coaly particles that contain pyrite are generated during the preparation of Illinois Basin coal for market. These particles are discharged to an impoundment, which eventually must be reclaimed. The purpose for reclamation is either to prevent the generation of acidic solution as the pyrite in the coal slurry solid reacts with air, or to prevent the migration of the acidic solution to a groundwater aquifer. The reclamation is usually accomplished by covering the impoundment with a four-foot-thick layer of topsoil. One possible alternative method for reclamation of a coal slurry impoundment is to mix in alkaline residue from the fluidized-bed combustion of coal. This codisposal would slow the production of acid and would also neutralize any acid produced. If the codisposal method is found to be environmentally acceptable, it will save the coal mining companies part of their cost of reclamation, and also provide a safe and useful disposal outlet for a portion of the residue that is generated by the fluidized-bed combustion of coal. Pyrite oxidation experiments were conducted during the quarter in the following manner. Air, free of carbon dioxide, is bubbled through water in a covered beaker. The pH is adjusted to 7.8 and the solution is circulated by a peristaltic pump through the coal slurry sample contained in a cellulose thimble in a Soxhlet tube mounted above the beaker. The pH of the solution is continuously statted to 7.8 by addition of NaOH solution. Samples are pipetted from the reaction solution for sulfate determination. The rate of oxidation of pyrite in coal slurry solids sample CSS-2a was calculated from the rate of production of sulfate ion to be 1.71[times] 10[sup[minus]6][micro]mole pyrite per minute per[micro]mole of pyrite present.
Book Synopsis Effects of Coal-mine Discharges on the Quality of the Stonycreek River and Its Tributaries, Somerset and Cambria Counties, Pennsylvania by : Donald R. Williams
Download or read book Effects of Coal-mine Discharges on the Quality of the Stonycreek River and Its Tributaries, Somerset and Cambria Counties, Pennsylvania written by Donald R. Williams and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Oxidation of Coal Mine Pyrite by : C. Scott Clark
Download or read book The Oxidation of Coal Mine Pyrite written by C. Scott Clark and published by . This book was released on 1986 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pyrite Oxidation and Its Control by : V. P. Evangelou
Download or read book Pyrite Oxidation and Its Control written by V. P. Evangelou and published by CRC Press. This book was released on 2018-04-27 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pyrite Oxidation and its Control is the single available text on the market that presents the latest findings on pyrite oxidation and acid mine drainage (AMD). This new information is an indispensable reference for generating new concepts and technologies for controlling pyrite oxidation. This book focuses on pyrite oxidation theory, experimental findings on oxidation mechanisms, as well as applications and limitations of amelioration technologies. The text also includes discussions on the theory and potential application of novel pyrite microencapsulation technologies for controlling pyrite oxidation currently under investigation in the author's laboratory.
Book Synopsis Acid Mine Water by : Water Resources Scientific Information Center
Download or read book Acid Mine Water written by Water Resources Scientific Information Center and published by . This book was released on 1975 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Selective Bibliography of Surface Coal Mining and Reclamation Literature by : Argonne National Laboratory
Download or read book A Selective Bibliography of Surface Coal Mining and Reclamation Literature written by Argonne National Laboratory and published by . This book was released on 1977 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sulfur Intermediates in the Oxidation of Coal Mine Pyrites by : John W. Havrilla
Download or read book Sulfur Intermediates in the Oxidation of Coal Mine Pyrites written by John W. Havrilla and published by . This book was released on 1975 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Various Gas Atmospheres on the Oxidation of Coal Mine Pyrites by : John D. Robins
Download or read book The Effects of Various Gas Atmospheres on the Oxidation of Coal Mine Pyrites written by John D. Robins and published by . This book was released on 1971 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments up to 150 days in length were conducted to study the acid production rate of coal mine pyrites under various gas atmospheres. The gas atmospheres studied were air, nitrogen, methane, and carbon dioxide. The lower limits of the oxidation process were studied by introducing small amounts of oxygen along with the inert blanketing gas and by studying the effects of deaerated versus air saturated feedwater. Acid production was proportional to the available oxygen partial pressure. The acid parameters monitored continued to change and had not completely reached a steady state by the termination of the work. The acid production of nitrogen blanketed pyrite decreased to less than 1% of that of identical columns under air atmosphere. Nitrogen and methane gases were equally effective in reducing acid production. Both of these gases were slightly more effective than carbon dioxide. A large amount of detailed experimental data is presented.
Book Synopsis Near-neutral Oxidation of Pyrite in Coal Slurry Solids. [Quarterly] Technical Report, September 1--November 30, 1994 by :
Download or read book Near-neutral Oxidation of Pyrite in Coal Slurry Solids. [Quarterly] Technical Report, September 1--November 30, 1994 written by and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research project we plan to determine the rate of oxidation of pyrite associated with coaly particles (coal slurry solid) when the pH of the surrounding environment is held at approximately 7.8. Coaly particles that contain pyrite are generated during the preparation of Illinois Basin coal for market. These particles are discharged to an impoundment, which eventually must be reclaimed. The purpose for reclamation is either to prevent the generation of acidic solution as the pyrite in the coal slurry solid reacts with air, or to prevent the migration of the acidic solution to a groundwater aquifer. The reclamation is usually accomplished by covering the impoundment with a four-foot-thick layer of topsoil. One possible alternative method for reclamation of a coal slurry impoundment is to mix in alkaline residue from the fluidized-bed combustion of coal. This codisposal would slow the production of acid and would also neutralize any acid produced. If the codisposal method is found to be environmentally acceptable, it will save the coal mining companies part of their cost of reclamation, and also provide a safe and useful disposal outlet for a portion of the residue that is generated by the fluidized-bed combustion of coal. During this quarter we purchased and set up two automatic titrators, which will be used in determining the rate of pyrite oxidation at nearly neutral pH. The titrators will provide a means for maintaining the pH at the desired level. The rate at which sulfate ion is produced as a result of pyrite oxidation will be used to measure the amount of pyrite oxidized over time.
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1976 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Microbiology by : P. D. Sharma
Download or read book Environmental Microbiology written by P. D. Sharma and published by Alpha Science Int'l Ltd.. This book was released on 2005 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the applications of microorganisms to environment, public health, industry and agriculture. This text attempts to bring the scattered material on applied effects of microorganisms on environment, human health and welfare together in the form of a complete book on environmental microbiology.