The Effect of Interrupted Irrigation on Copper Release and Bacterial Activity During Leaching of Chalcopyrite Ore

The Australasian Institute of Mining and Metallurgy
Gutierrez N Lim C Low K Madgwick J Peddie F Rajoka M. I
Organization:
The Australasian Institute of Mining and Metallurgy
Pages:
4
File Size:
476 KB
Publication Date:
Jan 1, 1981

Abstract

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Percolation irrigation of low-grade quartz feldspar porphyry ore with pH 2.0 H2SO4 at 510 litres/m2/day using particle sizes 1.7 - 6.7 mm in columns measuring 5 cm dia × 126 cm long was used to study effects of interrupted irrigation ('rest' periods) on metal ion release and leaching bacteria. Copper tenors increased approximately 16 fold and bacterial iron oxidation activity three fold following a 14 day 'rest'. A linear relationship between copper tenor and bacterial activity demonstrated that this experimental system was effective for quantitative studies of bacterial leaching in ore colums.
Citation

APA: Gutierrez N Lim C Low K Madgwick J Peddie F Rajoka M. I  (1981)  The Effect of Interrupted Irrigation on Copper Release and Bacterial Activity During Leaching of Chalcopyrite Ore

MLA: Gutierrez N Lim C Low K Madgwick J Peddie F Rajoka M. I The Effect of Interrupted Irrigation on Copper Release and Bacterial Activity During Leaching of Chalcopyrite Ore. The Australasian Institute of Mining and Metallurgy, 1981.

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