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Canty, G.A.; Everett, J.W. |
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Title |
Injection of Fluidized Bed Combustion Ash into Mine Workings for Treatment of Acid Mine Drainage |
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Journal Article |
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Year |
2006 |
Publication |
Mine Water Env. |
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25 |
Issue |
1 |
Pages |
45-55 |
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Keywords |
acid mine drainage AMD alkaline injection technology fluidized bed combustion ash Oklahoma |
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Abstract |
A demonstration project was conducted to investigate treating acid mine water by alkaline injection technology (AIT). A total of 379 t of alkaline coal combustion byproduct was injected into in an eastern Oklahoma drift coal mine. AIT increased the pH and alkalinity, and reduced acidity and metal loading. Although large improvements in water quality were only observed for 15 months before the effluent water chemistry appeared to approach pre-injection conditions, a review of the data four years after injection identified statistically significant changes in the mine discharge compared to pre-injection conditions. Decreases in acidity (23%), iron (18%), and aluminium (47%) were observed, while an increase in pH (0.35 units) was noted. Presumably, the mine environment reached quasi-equilibrium with the alkalinity introduced to the system. |
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1025-9112 |
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Injection of Fluidized Bed Combustion Ash into Mine Workings for Treatment of Acid Mine Drainage; 1; FG 6 Abb., 1 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17319 |
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422 |
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Author |
Canty, G.A.; Everett, J.W. |
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Title |
Remediation of underground mine areas through treatment with fly ash |
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Year |
1999 |
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Acid mine drainage Groundwater Pollution Hazardous waste site remediation |
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Remediation of underground mine areas through treatment with fly ash; Oklahoma City: Oklahoma Conservation Commission, Water Quality Division; Opac |
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CBU @ c.wolke @ 7240 |
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423 |
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