Source: https://www.maraenco.nl/material-1905/coal-mining-alkaline-33756.html
Timestamp: 2019-08-18 07:04:18
Document Index: 7389095

Matched Legal Cases: ['art 434', '§ 434', '§ 434', '§ 434', '§ 434', '§ 434', '§ 434', '§ 434', '§ 434']

Home Coal Mining Alkaline
Alkaline Coal Mining (additional requirements may apply to Western Coal Mining, See Part I.B.2) a. Alkaline Mine Drainage - means mine drainage which, before any treatment, has a pH equal to or greater than 6.0 and
alkaline strata in the overburden and removal of acid-producing coal substantially alters the groundwater regime. Reclamation of abandoned mine land (AML) sites in Ohio typically yields an acid load reduction of 60 to 80 percent.
Passive Treatment of Coal Mine Drainage By Robert S. Hedin, Robert W. Nairn, and Robert L. P. Kleinmann ... Passive treatment of net alkaline water ... passive treatment systems are generally measured in their land use requirements. Passive treatment systems use con-
Neutralization of acidic discharges from abandoned ...
The hydrologic characteristics of two abandoned underground coal mine sites, near Latrobe, PA, and Unionntown, PA, were investigated by the U.S. Bureau of Mines for possible implementation of alkaline injection into the mine pools as a means of abating their acid discharges.
The influence of the neutralized acid coal mine water on the pH and iron in the springs is not obvious because of the neutralization effect of calcite in aquifer, the buffer effect of groundwater, and the precipitation of iron. Some measures to prevent the formation of acid and alkaline coal mine …
Coal remining and western alkaline coal mining were added in the 2002. The 2002 amendments described the process, pollutants, control and treatment technologies and costs for western alkaline coal mining subcategory.
Bacterial community responses to a gradient of alkaline ...
Coal mining in the region generates alkaline mine drainage (AlkMD), causing dramatic increases in conductivity, alkalinity, sulfate and metals sufficient to degrade stream macrobiota communities ...
Use of Alkaline Coal Ash for Reclamation of a Former Strip Mine Jennifer L. Kolbe1, ... While most ashes tend to be alkaline, fly ash samples World of Coal Ash (WOCA) Conference - May 9-12, 2011, in Denver, CO, USA ... Use of Alkaline Coal Ash for Reclamation of a Former Strip Mine ...
40 CFR Part 434 - COAL MINING POINT SOURCE CATEGORY BPT ...
Subpart B - Coal Preparation Plants and Coal Preparation Plant Associated Areas (§§ 434.20 - 434.25) Subpart C - Acid or Ferruginous Mine Drainage (§§ 434.30 - 434.35) Subpart D - Alkaline Mine Drainage (§§ 434.40 - 434.45) Subpart E - Post-Mining Areas (§§ 434.50 - 434.55) Subpart F - Miscellaneous Provisions (§§ 434.60 - 434.65)
Geochemistry of Coal Mine Drainage Ground water and associated mine discharges in the coalfields of Pennsylvania range widely in quality from near-neutral, or "alkaline" (alkalinity > acidity; pH > 6), to strongly acidic (Rose and Cra-votta, 1998). The pH of coal-mine drainage in Pennsylvania has a bimodal frequency distribution
Geochemical and hydrogeologic evolution of alkaline ...
Acid mine drainage (AMD) is a phenomenon that occurs when pyrite that is present in abandoned coal mines comes in contact with oxygen and water, which results in the formation of sulfuric acid and iron hydroxide. Grouting of an abandoned mine with alkaline materials provides a …
Development Document - Western Alkaline Coal Mining Subcategory Development Document - Western Alkaline Coal Mining Subcategory i Acknowledgments This document was developed under the direction of William A. Telliard and John Tinger of the Engineering and Analysis Division (EAD) within the U.S. Environmental Protection
The amount of alkaline material needed is determined by an overburden analysis. Highly alkaline fluidized bed combustor (FBC) coal ash was used to amend the spoils at two surface coal mine sites during mining and reclamation activities. At the first site, which was a reclamation effort, addition of the FBC ash was sufficient to convert acidic
Western Alkaline Coal Mining Subcategory The Western Alkaline Coal Mining Subcategory is a new Subcategory being proposed for the coal mining industry to address sedimentation and erosion control issues that are characteristic to the arid and semiarid coal producing regions of …
Remining on the Lower Kittanning or Clarion coal in northcentral Pennsylvania generally increases acid loads unless flow reduction measures are taken and alkaline materials are brought to the site (Michael W. Smith, personal communication).
Mining and Water Quality, from the USGS Water Science School. ... Mine drainage is metal-rich water formed from a chemical reaction between water and rocks containing sulfur-bearing minerals. The resulting chemicals in the water are sulfuric acid and dissolved iron. ... metal-laden drainage from abandoned coal mines can have substantial effects ...
(PDF) The Use of FBC Ash for Alkaline Addition at Surface ...
The Use of FBC Ash for Alkaline Addition at Surface Coal Mines . Joseph Schueck 1, ... Baghouse lime, a lime ma nufacturing byproduct, has been used on sever al surface coal mine sites for alkaline .
The coal-mining industry is worth millions of dollars and the international trade in coal forms the economic backbone of many coal-producing countries. Despite the financial importance of mining coal to these nations, one must consider the detrimental impact of mining operations on the environment.
Alkaline mine drainage from metal sulphide and coal mines ...
The coal mine waters may be net acidic or net alkaline: there is some evidence to suggest that the former are typically derived from unsaturated, under-drained (i.e. drained from underneath the ...
40 CFR Subpart H - Western Alkaline Coal Mining | CFR | US ...
40 CFR Subpart H - Western Alkaline Coal Mining . CFR ; prev next § 434.80 Specialized definitions. § 434.81 Applicability. § 434.82 Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
Diversity and activity of methanotrophs in alkaline soil ...
Diversity and activity of methanotrophs in alkaline soil from a Chinese coal mine ... H., Bodrossy, L., Zhao, J., Murrell, J. C. and Xing, X.-H. (2009), Diversity and activity of methanotrophs in alkaline soil from a Chinese coal mine. FEMS Microbiology Ecology, 70: 196–207. doi: 10.1111/j.1574-6941.2009.00707.x ... were applied to ...
APPLYING WEPP TECHNOLOGIES TO WESTERN ALKALINE …
APPLYING WEPP-Mine TO WESTERN ALKALINE SURFACE COAL MINES. J.Q. Wu, S. Dun, W.J. Elliot, H. Rhee. ... Big Sky Mine, a major surface coal mine in southeast Montana. Author: Shuhui Dun Created Date: 09/13/2011 12:46:58 Title: APPLYING WEPP TECHNOLOGIES TO WESTERN ALKALINE SURFACE COAL MINES
$ Coal Remining and Western Alkaline Coal Mining Support Documents (CD) EPA 821-C-02- 002, July 2002 - Compilation of EPA and OSM documents supporting the new subcategories and provides links to pertinent websites for additional information.
coal mining pihak