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Saturday, July 11, 2020 | History

3 edition of Studies on densification of coal mine drainage sludge. found in the catalog.

Studies on densification of coal mine drainage sludge.

Bituminous Coal Research, inc.

Studies on densification of coal mine drainage sludge.

by Bituminous Coal Research, inc.

  • 166 Want to read
  • 35 Currently reading

Published by [Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U.S. Govt. Print. Off. in Washington .
Written in English

    Subjects:
  • Acid mine drainage.,
  • Sewage sludge -- Drying.

  • Edition Notes

    SeriesWater pollution control research series
    ContributionsUnited States. Environmental Protection Agency.
    Classifications
    LC ClassificationsTD899.M5 B54
    The Physical Object
    Paginationx, 113 p.
    Number of Pages113
    ID Numbers
    Open LibraryOL4376838M
    LC Control Number78614574

    There are four chemical reactions that represent the chemistry of pyrite weathering to form acid mine drainage. An overall summary reaction is as follows: 2 FeS2+7 O2+2 H2O → 2 FeSO4-+2 H2SO4. Pyrite + Oxygen + Water → Ferrous Sulfate + Sulfuric Acid. The acid mine drainage waste . After stripping, the HDS slurry from the densification tank and the acid mine drainage stream are mixed in the reaction/aeration tank(s). The combination of aeration, high pH, and mixing causes the iron, manganese, and other heavy metals (if present) to precipitate to the .

    Sludge recycle and reuse in acid mine drainage treatment Gary B. Keefer, William A. Sack One of the most devastating pollution problems in the Appalachian region is that of acid mine drainage (AMD). With the expected increase in coal usage, the production of AMD and the associated waste sludge (AMDS) produced from lime neutralization of AMD. Cravotta, C.A., III () Municipal sludge use in coal-mine reclamation and potential effects on the formation of acidic mine drainage: University Park, Pa., Pennsylvania State University, unpublished Ph.D. thesis, p.

    WesTech Engineering Inc., the prime process equipment supplier and contractor for the acid mine drainage treatment facility, proposed to provide and install a single-stage acid rinse water treatment system which included acid neutralization, solids sedimentation, and a high-density sludge system. Acid mine drainage (AMD), produced from coal and mineral mining operations, presents a difficult and costly problem. With the sheer volume of AMD sites and the contaminants associated with them, it has been described as the largest environmental problem facing the U.S. mining industry, according to the Environmental Protection Agency (EPA).


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Studies on densification of coal mine drainage sludge by Bituminous Coal Research, inc. Download PDF EPUB FB2

WATER POLLUTION CONTROL RESEARCH SERIES • EJT 09/71 Studies on Densification of Coal Mine Drainage Sludge ENVIRONMENTAL PROTECTION AGENCY • WATEK QUALITY OFFICE WATER POLLUTION CONTROL RESEARCH SERIES The Water Pollution Control Research Reports describe the results and progress in the control and abatement of pollution in our Nation's.

Studies on densification of coal mine drainage sludge Author: Robert C Streeter ; R K Young ; Richard A Glenn ; Bituminous Coal Research, Inc. ; United States. Abstract " EJT 09/""[Prepared] for the Environmental Protection Agency."Includes bibliographical of access: Internet.

mine drainage are nearly equivalent. In this study, the sludge produced by the electrolysis for treating coal mine drainage was designated as coal mine drainage sludge (CMDS).

As an alternative of sludge treatment, the reuse of CMDS as a material in the water treatment process could be a valuable option. The following. XRD graphic analysis of dried acid mine drainage sludge Specific surface area, pore volume and pore size of dried acid mine drainage sludge sample also being identified by BET method and the.

Moreover, the dewatering studies conducted on pickle liquor sludge have also contributed to densification studies on coal mine drainage sludge. Municipal Waste and Water Treatment Municipal sludges have characteristics which are largely determined by the waste treatment process. The purpose of the study is to analyse statistically the parameters of the mine drainage system, and to design the mine drainage system; including open drain, sump, and settling pond.

In view of the above, this study evaluated aluminum- and iron-based adsorbents for aqueous As(V) remediation. The iron-based adsorbent was derived from coal mine drainage sludge, a byproduct of coal mine drainage treatment (South Korea).

The sludge was coated with polyurethane (CMDS-PU) and used for As(V) remediation. Natural Resources Canada conducted a survey of mine drainage treatment and sludge management practices. A detailed survey was prepared which requested information such as site background and history, mine drainage characteristics, type of treatment followed by precious metal mines (23%), coal (7%), uranium (5%), and other (19%).

Other types. Technology Data Sheet Mine Dewatering Groundwater is a common problem when mining, and developing a mine below groundwater level presents many challenges. Poorly controlled groundwater will have negative impacts on the safety, efficiency and economics of mining operations.

Sludge samples were collected from 11 Canadian mine sites (seven base metal, two uranium, one gold and one coal) from December to March Background information on AMD production, sludge production and disposal as well as the overall treatment process was compiled for all sites.

In this project, iron(III) sludge densification was studied by the precipitation and recycling of iron hydroxide from aqueous FeCl 3 solution. The effects of different alkaline reagents, conditioning procedures, and operating pH, on the final solid contents were observed, in order to identify factors crucial for improving sludge density.

and the utilized amount of coal mine drainage is × m3 in China (Wang ). It is an effective way to solve the problems of water scarcity in most coal mining areas by treating mine drainage as process water and domestic water.

More than collieries of 95% adopt underground coal mining in China. Usually, mine drainage is drained from. @article{osti_, title = {Dewatering of mine drainage sludge}, author = {}, abstractNote = {Sludge formed by the neutralization of acid mine drainage is generally affected by the acid mine water composition and the method of neutralization used.

The effects of both raw water chemistry and the various treatment processes on sludge composition are enumerated for each treatment process.

Coal combustion by-products can be beneficially used as: (1) an alkaline seal or fill material to contain acid producing materials and to prevent the formation of acid mine drainage; (2) an agricultural amendment to create artificial soil on abandoned mine lands where native soils are not available; (3) an alkaline amendment added to spoils to.

A novel treatment mix was designed for the simultaneous immobilization of As, Cu, and Pb in contaminated soils using natural (waste oyster shells (WOS)) and industrial (coal mine drainage sludge (CMDS)) waste materials.

The treatments were conducted using the standard U.S. sieve size no. 20 ( mm) calcined oyster shells (COS) and CMDS materials with a curing time of 1 and 28 days. The Bureau of Mines conducted a study of current trends in methods employed by the coal industry to dispose of acid mine drainage (AMD) treatment sludge.

Thirty-three AMD treatment plants, operated by 11 pensylvania coal companies, were randomly surveyed. as on-site fuel. Coal has a wide range of moisture (%), sulfur (%), and ash content (%). These can affect the value of the coal as a fuel and cause environmental problems in its use. The depth, thickness, and configuration of the coal seams determine the mode of extraction.

Shallow, flat coal deposits are mined. from AMD sludge. A USGS () study by Cravotta and our preliminary research indicate AMD sludge could be an important feedstock for REE. REE in Appalachian Coal Mine Drainage. In the Appalachian Basin, coal mine drainage (CMD) is produced in vast quantities at both abandoned and current coal mining and preparation facilities.

Description of study area 5 Methodology 5 Acknowledgments 7 The process of acid formation in coal-mine drainage 7 Identification of sources of mine-related drainage 8 Underground mines 9 Flow system 10 Hydrochemistry 10 Coal wastes 12 Flow system 12 Hydrochemistry 12 Spoil and impoundments associated with surface mining.

The research includes characterization of coal and coal by-products—including coal ash from power generation, refuse rock from coal preparation plants, acid mine drainage treatment sludge, and young lignitic coal from North Dakota—so that recovery efforts can focus on coal-based materials with the highest concentrations of rare earths.41 '10' OLD 40 MINE ALKALINE-ADDITIO SITE No.

69 MINE SLUDGE-ADDITION SITE Digital base from U.S. Geological Survey Clarion. Pennsylvania minute quadrangle map 0 1 2 KILOMETERS Figure Locations of two surface coal mine study sites, Old 40 mine and C&K No.

69 mine, and National Oceanic and Atmospheric Administration.Get this from a library! Electrokinetic densification of solids in a coal mine sediment pond: a feasibility study. [R H Sprute; D J Kelsh; S L Thompson].