2 edition of Silicate treatment for acid mine drainage prevention found in the catalog.
Silicate treatment for acid mine drainage prevention
by Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U.S. Govt. Print. Off. in [Washington
Written in English
|Series||Water pollution control research series|
|Contributions||United States. Environmental Protection Agency. Water Quality Office.|
|LC Classifications||TD899.M5 T9|
|The Physical Object|
|Pagination||x, 94 p.|
|Number of Pages||94|
|LC Control Number||70611578|
The preferred technique for managing acid drainage is prevention, which can be effected by several existing methods (Blowes et al., ; Lawrence, ), including avoidance of acid-generating rock, the addition of inhibitors of microbial oxidation, encapsulation of acid-generating rock in the center of a waste-rock dump that contains mostly. In this paper, the authors present a fourth alternative to acid drainage treatment and prevention, that of preventing sulfide oxidation. This can occur when sulfate reduction is promoted and subsequent precipitation of low-solubility sulfide minerals occurs at depth in the tailings under conditions where these minerals remain stable.
With hundreds of entries covering tillage, irrigation, erosion control, ground water, and soil degradation, the book offers quick access to all branches of soil science, from mineralology and physics, to soil management, restoration, and global warming. It is also available in an online version. Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.A freshly exposed surface of pure copper has a pinkish-orange is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling Group: group
PREVENTION OF ACID MINE DRAINAGE BY AGGLOMERATION OF REACTIVE TAILINGS WITH SELECTED BINDERS AND BACTERICIDALS A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science in Metallurgical Engineering by Xiaotong Su Manoranjan Misra, ThesisAdvisor December, Full text of "Mine drainage and surface mine reclamation: proceedings of a conference" See other formats.
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Get this from a library. Silicate treatment for acid mine drainage prevention: silicate and alumina/silica gel Silicate treatment for acid mine drainage prevention book of coal refuse for the prevention of acid mine drainage.
[Tyco Laboratories.; United States. Environmental Protection Agency. Water Quality Office.]. Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines.
Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks.
Acid Mine Drainage (AMD): Causes, treatment and case studies Article in Journal of Cleaner Production December w Reads How we measure 'reads'. Current Approaches for Mitigating Acid Mine Drainage Article Literature Review (PDF Available) in Reviews of environmental contamination and toxicology April with 4, Reads.
Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) refers to the outflow of acidic water from metal mines or coal mines. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within.
Acid mine drainage 1. Special Topic in Mining Engineering-II (MN) Assignment-1 Issues of Acid Mine Drainage and Its Remedial Measures Submitted by Satyabrata Nayak MN 2.
Acid mine drainage treatment, East Rand, South Africa AMD waters in the Rio Tinto, Spain 3. Olson GJ, Clark TR, Mudder TI () Acid rock drainage prevention and treatment with thiocyanate and phosphate containing materials.
National Meetings of the American Society of Mining and Reclamation, Breckenridge, CO, June 19–23, Cited by: Treatment of AMD: Acid mine drainage sometimes forms when certain minerals in the soil and rocks around mines are exposed to weathering processes during exposed minerals release their contents into creeks causing them to become acidic.
This kind of pollution damages aquatic life and makes the water useless or harmful for others who depend on it for recreation or drinking water. The effective control and treatment of acid mine drainage (AMD) from sulfide-containing mine wastes is of fundamental importance for current and future long-term sustainable and cost-effective mining industry operations, and for sustainable management of legacy AMD sites.
Historically, AMD management has focused on the use of expensive neutralising chemicals to treat toxic by: 5. The abandonment of a mine as the final episode of mining activities leads in many cases to the maintenance of or even an increase in acid drainage–generating processes, which is the results of potential pollution sources more than its activity period ().Acid drainage from abandoned mines can originate from inside as well as from the surface by the oxidation of sulfides contained in the Cited by: Acid mine drainage control methods / by David J.
Akers, Jr., and William F. Lawrence; The character and utilization of the sludge from acid mine drainage treatment facilities / by Thomas Sim Silicate treatment for acid mine drainage prevention; silicate and alumina/silica gel treatment of coal.
CE M UTILIZATION OF ACID MINE DRAINAGE TREATMENT SLUDGE Grady, W. and Akers, D. J., West Virginia University, Coal Research Bureau, Report No.prepared for Proceedings of the Fifth Mineral Waste Utilization Symposium, Chicago, Illinois, sponsored by U.S.
Bureau of Mines and IIT Research Institute, April Pyrite surface passivating layers, incorporating silicate from the natural dissolution of reactive silicate minerals in real waste rocks, can be preserved in a continuous, coherent, and stable form at pH ≥ 6, and have been found to reduce the pyrite oxidation rate by 50–95% [3,4].However, in some cases the establishment of these stable surface layers requires initial short-term treatment Author: Yan Zhou, Michael D.
Short, Jun Li, Russell C. Schumann, Roger St. Smart, Andrea R. Gerson, Gujie. The environmental, social, and economic problems associated with acid mine drainage (AMD) from abandoned mine sites are globally significant.
As a consequence of mining exploration of metallic mineral deposits, large quantities of sulfides are exposed to weathering processes (oxygen, water, and bacteria) that generate acidic environments and.
Acid mine drainage (AMD) from mine wastes is a critical environmental issue worldwide. It is caused principally by the oxidation of pyrite (FeS2) through a combination of complex reactions (physical, chemical, and biological), often associated with toxic metals/metalloids with varying toxicity, such as As, Cd, Pb and Zn.
This paper is specifically focused on the role of reactive silicate Author: Yan Zhou, Michael D. Short, Jun Li, Rong Fan, Gujie Qian. TABLE IX-II EFFECTIVENESS OF ALKALINE NEUTRALIZATION FOR IMPROVING QUALITY OF MINE DRAINAGE" Feed Water Lime Limestone Limestone - Lime Parameter11 Range Treatment Treatment Treatment PH Total acidity 33 Alkalinity 93 35 Specific Conductance Sulphate Technical Report: Guidelines for metal leaching and acid rock drainage at minesites in British Columbia.
Modeling of Acid Rock Drainage, Neutral Mine Drainage, and Saline Drainage for Characterization and Remediation Introduction Geochemical Modeling Hydrological Modeling Hydrogeological Modeling Gas Transport Modeling Statistical Evaluation Conclusions References List of Tables List of Figures.
Surface Mine Reclamation and Acid Mine Drainage Pollution Abatement and Prevention The site is located near Nesquehoning Borough, in Carbon County and is another example of the backfilling and reclamation related beneficial use of coal ash, which also incorporates the beneficial use of coal ash for acid mine drainage pollution abatement and.
United States. Environmental Protection Agency. Water Quality Office United States. Water Quality Office VIAF ID: (Corporate) Permalink:. In their Interim Policy for Acid Rock Drainage at Mine Sites, the Province of British Columbia states that blending of acid generating and acid consuming materials may be an acceptable acid rock drainage prevention strategy (BC RAC, ): "While it is reasonable to assume that File Size: 9MB.
Design criteria derived under MEND were used to scale-up a complete system for the treatment for acid mine drainage emerging from an abandoned gold mine adit flowing at to 1 L/sec in Brazil (Kalin & Caetano Chaves, ). Figure 10a shows the pilot system on the upper left panel and the portal on the upper right.
The precipitation ponds and Author: Margarete Kalin, William N. Wheeler, Michael P. Sudbury, Bryn Harris. Construction of Dry Cover System for Prevention of Acid Mine Drainage at Mine Waste Dump in Open Cast Coal Mines, Indonesia.
Shinji Matsumoto, Hideki Shimada, Takashi Sasaoka, Ginting J. Kusuma, Rudy S. Gautama. Journal of Environmental Protection .