Copper metallurgical slags: mineralogy, bio/weathering processes and metal bioleaching



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TH2015PESC1201 diffusion

CHAPTER 3: MATERIALS AND METHODS .................................................................. 76
 
3.1
 
MATERIALS AND METHODS .................................................................................... 78
 
3.1.1
 
Materials ................................................................................................................ 78
 
3.1.1.1
 
Historical slags ............................................................................................... 78
 
3.1.1.2
 
Modern slags ................................................................................................... 80
 
3.1.2
 
Methods .................................................................................................................. 82
 
3.1.2.1
 
Sample preparation ......................................................................................... 82
 
3.1.2.2
 
Leaching solutions preparation ....................................................................... 83
 
3.1.2.3
 
Bacteria preparation ........................................................................................ 84
 
3.1.2.4
 
Analytical methods ......................................................................................... 85
 
3.1.3 Experimental designs ................................................................................................... 89
 
3.1.3.1
 
pH-dependent leaching experiments .............................................................. 90
 
3.1.3.2
 
Soil organic acids leaching ............................................................................. 90
 
3.1.3.3
 
Bioweathering experiments ............................................................................ 91
 
3.1.3.4
 
Bioleaching experiments ................................................................................ 92
 
3.1.3.4.1
 
Bioleaching with A. thiooxidans ................................................................. 93
 
3.1.3.4.1.1
 
Activity test for A. thiooxidans ............................................................. 93
 
3.1.3.4.2
 
Bioleaching with P. fluorescens ................................................................. 93
 

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