Source of Ni in coal mine acid rock drainage, West Coast, New Zealand

2006 ◽  
Vol 67 (4) ◽  
pp. 214-220 ◽  
Author(s):  
P.A. Weber ◽  
W.M. Skinner ◽  
J.B. Hughes ◽  
P. Lindsay ◽  
T.A. Moore
Keyword(s):  
New Zealand ◽  
Coal Mine ◽  
West Coast ◽  
Acid Rock Drainage ◽  
Acid Rock ◽  
Mine Acid

scholarly journals Factors that influence coal mine drainage chemistry West Coast, South Island, New Zealand

2010 ◽  
Vol 53 (2-3) ◽  
pp. 115-128 ◽  
Author(s):  
J Pope ◽  
N Newman ◽  
D Craw ◽  
D Trumm ◽  
R Rait
Keyword(s):  
New Zealand ◽  
Coal Mine ◽  
West Coast ◽  
Mine Drainage ◽  
Coal Mine Drainage

SHORT-TERM ACID ROCK DRAINAGE CHARACTERISTICS DETERMINED BY PASTE pH AND KINETIC NAG TESTING: CYPRESS PROSPECT, NEW ZEALAND

2006 ◽  
Vol 2006 (2) ◽  
pp. 2289-2310 ◽  
Author(s):  
Paul A. Weber ◽  
Joseph B. Hughes ◽  
Liam B. Conner ◽  
Phil Lindsay ◽  
Roger St. C. Smart
Keyword(s):  
New Zealand ◽  
Acid Rock Drainage ◽  
Short Term ◽  
Acid Rock

Effects of Several Parameters on Nickel Extraction from Laterite Ore by Direct Bioelaching Using Aspergillus niger and Acid Rock Drainage from Coal Mine as an Organic Substrate

2013 ◽  
Vol 825 ◽  
pp. 356-359 ◽  
Author(s):  
M. Zaki Mubarok ◽  
Hardy Kusuma ◽  
W.P. Minwal ◽  
Siti Khodijah Chaerun
Keyword(s):  
Particle Size ◽  
Aspergillus Niger ◽  
Particle Size Distribution ◽  
Coal Mine ◽  
Shake Flask ◽  
Acid Rock Drainage ◽  
Organic Substrate ◽  
Acid Rock ◽  
Nickel Extraction ◽  
Laterite Ore

Aspergillus niger is a prominent fungi that has been used for bioleaching of nickel laterite ore and commercial production of citric acid. Series of shake flask bioleaching assays have been conducted to study the effects of ore type, ore particle size distribution, solid percentage, and substrate volume percentages as well as sulphur addition on the nickel extraction from Indonesian laterite ore. Acid rock drainage (ARD) from local coal mine was used as a substrate for carbon and nutrient sources of the fungus. The results show that saprolite ore exhibits a better leaching with fungal metabolic acids than limonite. The highest nickel extraction of saprolite ore was 43%, which was obtained from the shake flask bioleaching assays with ore particle size distribution of -60+80 mesh, pulp density of 2.5%, and ARD substrate volume percentage of 10%, after 24 days of incubation. For both saprolite and limonite ore samples, coarse particle size ditribution of -60+80 mesh provides a better nickel extraction than the finer ore particle size. The addition of potato dextrose agar and fresh innoculum after 16 incubation days generated a re-increase of nickel extraction, indicating the refreshment of the active fungus. Based on the results, it was found that Aspergilus niger growth can take place with an organic substrate of liquid ARD obtained from coal mining area.

PREDICTING ACID ROCK DRAINAGE FROM A NICKEL MINE WASTE PILE AND METAL LEVELS IN SURROUNDING SOILS

2017 ◽  
Vol 16 (9) ◽  
pp. 2089-2096
Author(s):  
Artwell Kanda ◽  
George Nyamadzawo ◽  
Jephita Gotosa ◽  
Nathan Nyamutora ◽  
Willis Gwenzi
Keyword(s):  
Acid Rock Drainage ◽  
Mine Waste ◽  
Acid Rock ◽  
Metal Levels
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