A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Application of Coal Fly Ash to Replace Lime in the Management of Reactive Mine Tailings
Acid mine drainage (AMD), the acidic water discharged from active, inactive, or abandoned mine sites, is the largest environmental liability facing the mining industry. Currently large quantities of lime are used for AMD control by mining companies. The manufacture of lime contributes significantly to greenhouse gas (GHG) emissions, since about 0.8 tonnes of CO2 are generated for every tonne of lime produced. This study presents an innovative approach of using coal fly ash, a by-product from coal-fired utilities, to replace lime for AMD control in reactive mine tailings. A case study is presented to demonstrate that at on mining sites with access to high calcium coal fly ash, this approach is effective, cost efficient and presents minimum adverse environmental impacts.
Application of Coal Fly Ash to Replace Lime in the Management of Reactive Mine Tailings
Acid mine drainage (AMD), the acidic water discharged from active, inactive, or abandoned mine sites, is the largest environmental liability facing the mining industry. Currently large quantities of lime are used for AMD control by mining companies. The manufacture of lime contributes significantly to greenhouse gas (GHG) emissions, since about 0.8 tonnes of CO2 are generated for every tonne of lime produced. This study presents an innovative approach of using coal fly ash, a by-product from coal-fired utilities, to replace lime for AMD control in reactive mine tailings. A case study is presented to demonstrate that at on mining sites with access to high calcium coal fly ash, this approach is effective, cost efficient and presents minimum adverse environmental impacts.
Application of Coal Fly Ash to Replace Lime in the Management of Reactive Mine Tailings
Shang, Julie Q. (author)
Fourth Geo-China International Conference ; 2016 ; Shandong, China
Geo-China 2016 ; 1-8
2016-07-21
Conference paper
Electronic Resource
English
Application of Coal Fly Ash to Replace Lime in the Management of Reactive Mine Tailings
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