scholarly journals Arsenic behavior during the treatment of refractory gold ores via POX: Characterization of Fe-AsO4-SO4 precipitates

2021 ◽  
pp. 105616
Author(s):  
Jakolien A. Strauss ◽  
Volha Bazhko ◽  
Genarro Ventruti ◽  
Xuan Liguo ◽  
Mario A. Gomez
Keyword(s):  
Gold Ores ◽  
Refractory Gold Ores ◽  
Refractory Gold

scholarly journals Refractory gold ores and concentrates part 1: mineralogical and physico-chemical characteristics

2019 ◽  
pp. 1-13 ◽  
Author(s):  
Richmond K. Asamoah ◽  
Massimiliano Zanin ◽  
Jason Gascooke ◽  
William Skinner ◽  
Jonas Addai-Mensah
Keyword(s):  
Chemical Characteristics ◽  
Gold Ores ◽  
Refractory Gold Ores ◽  
Physico Chemical ◽  
Refractory Gold

scholarly journals Analysis of the Microbial Community Associated with a Bioprocess System for Bioremediation of Thiocyanate- and Cyanide-Laden Mine Water Effluents

2015 ◽  
Vol 1130 ◽  
pp. 614-617 ◽  
Author(s):  
Robert J. Huddy ◽  
Rose Kantor ◽  
Wynand van Zyl ◽  
Robert P. van Hille ◽  
Jillian F. Banfield ◽  
...  
Keyword(s):  
Microbial Culture ◽  
Process Optimisation ◽  
Gold Extraction ◽  
Mixed Microbial Culture ◽  
Metabolic Potential ◽  
Gold Ores ◽  
Refractory Gold Ores ◽  
Refractory Gold ◽  
Key Microorganisms ◽  
Activated Sludge Processes

Gold extraction by cyanidation from refractory gold ores results in the formation of thiocyanate-and cyanide-contaminated wastewater effluents that must be treated before recycle or discard. Activated sludge processes, such as ASTERTM, can be used for biodegradation of these effluent streams. The destruction of these compounds is catalyzed by a mixed microbial culture, however, very little is known about the community composition and metabolic potential of the thiocyanate-and cyanide-degrading microorganisms within the community. Here we describe our on-going attempts to better understand the key microorganisms, within the ASTERTM bioprocess, that contribute to the destruction of thiocyanate and cyanide, and how this knowledge relates to further process optimisation.

scholarly journals Pretreatment Process on Refractory Gold Ores with As

2014 ◽  
Vol 54 (3) ◽  
pp. 543-547 ◽  
Author(s):  
Xin-yuan Nan ◽  
Xin Cai ◽  
Jun Kong
Keyword(s):  
Gold Ores ◽  
Refractory Gold Ores ◽  
Refractory Gold
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