scholarly journals Treatment of Acid Mine Drainage with Coal Fly Ash: Exploring the Solution Chemistry and Product Water Quality

2018 ◽  
Author(s):  
Wilson Mugera Gitari ◽  
Leslie F. Petrik ◽  
Segun A. Akinyemi
Keyword(s):  
Water Quality ◽  
Fly Ash ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Solution Chemistry ◽  
Acid Mine ◽  
Product Water

scholarly journals Treatment of acid mine drainage with coal fly ash in a jet loop reactor pilot plant

2020 ◽  
Vol 159 ◽  
pp. 106611 ◽  
Author(s):  
Rosicky Methode Kalombe ◽  
Tunde Victor Ojumu ◽  
Vinny Ndjate Katambwe ◽  
Michael Nzadi ◽  
Denzil Bent ◽  
...  
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Pilot Plant ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Loop Reactor ◽  
Acid Mine

scholarly journals Effectiveness of Fly Ash and Red Mud as Strategies for Sustainable Acid Mine Drainage Management

Minerals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 707
Author(s):  
Viktoria Keller ◽  
Srećko Stopić ◽  
Buhle Xakalashe ◽  
Yiqian Ma ◽  
Sehliselo Ndlovu ◽  
...  
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Red Mud ◽  
Mine Drainage ◽  
Ph Value ◽  
Coal Fly Ash ◽  
Precipitation Process ◽  
Acid Mine ◽  
Initial Ph ◽  
Acidic Mine Water

Acid mine drainage (AMD), red mud (RM) and coal fly ash (CFA) are potential high environmental pollution problems due to their acidity, toxic metals and sulphate contents. Treatment of acidic mine water requires the generation of enough alkalinity to neutralize the excess acidity. Therefore, red mud types from Germany and Greece were chosen for the neutralization of AMD from South Africa, where this problem is notorious. Because of the high alkalinity, German red mud is the most promising precipitation agent achieving the highest pH-values. CFA is less efficient for a neutralization and precipitation process. An increase in temperature increases the adsorption kinetics. The maximum pH-value of 6.0 can be reached by the addition of 100 g German red mud at 20 °C to AMD-water with an initial pH value of 1.9. German red mud removes 99% of the aluminium as aluminium hydroxide at pH 5.0. The rare earth elements (yttrium and cerium) are adsorbed by Greek red mud with an efficiency of 50% and 80% at 60 °C in 5 min, respectively.

Adsorption of Iron(II) from Acid Mine Drainage Contaminated Groundwater Using Coal Fly Ash, Coal Bottom Ash, and Bentonite Clay

2016 ◽  
Vol 227 (3) ◽  
Author(s):  
Emelda Obianuju Orakwue ◽  
Varinporn Asokbunyarat ◽  
Eldon R. Rene ◽  
Piet N. L. Lens ◽  
Ajit Annachhatre
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Bottom Ash ◽  
Bentonite Clay ◽  
Contaminated Groundwater ◽  
Coal Bottom Ash ◽  
Acid Mine

Fate of the naturally occurring radioactive materials during treatment of acid mine drainage with coal fly ash and aluminium hydroxide

2014 ◽  
Vol 133 ◽  
pp. 12-17 ◽  
Author(s):  
Godfrey Madzivire ◽  
Peane P. Maleka ◽  
Viswanath R.K. Vadapalli ◽  
Wilson M. Gitari ◽  
Robert Lindsay ◽  
...  
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Aluminium Hydroxide ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Radioactive Materials ◽  
Acid Mine ◽  
Naturally Occurring ◽  
Naturally Occurring Radioactive Materials

Utilizing acid mine drainage sludge and coal fly ash for phosphate removal from dairy wastewater

2013 ◽  
Vol 34 (24) ◽  
pp. 3177-3182 ◽  
Author(s):  
Y.R. Wang ◽  
Daniel C.W. Tsang ◽  
William E. Olds ◽  
Paul A. Weber
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Phosphate Removal ◽  
Dairy Wastewater ◽  
Acid Mine

scholarly journals Fate of sulphate removed during the treatment of circumneutral mine water and acid mine drainage with coal fly ash: Modelling and experimental approach

2011 ◽  
Vol 24 (13) ◽  
pp. 1467-1477 ◽  
Author(s):  
Godfrey Madzivire ◽  
Wilson M. Gitari ◽  
V.R. Kumar Vadapalli ◽  
Tunde V. Ojumu ◽  
Leslie F. Petrik
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Mine Water ◽  
Experimental Approach ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Acid Mine
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