Page 16 - ImmoCem In Mine Tailings Appplications - Technical Assessment

CONTAMINANTS ENCAPSULATION CEMENTED BACKFILL LEACHING TEST
1. The ImmoCem’s very strong ‘strings’, also provide excellent improvement in the encapsulation of contaminants within the tailings deposits.
2. Better encapsulation of undesired contaminants within the tailings dam reduces the possibility of these contaminants reaching the local water streams.
TOTAL METAL PARAMETER
T AILING S AMPLE (mg/L)
WITH IMMOCEM 0.5 kg/m3 (mg/L) 30 kg of cement per m3 100% Tailing
WITH IMMOCEM 0.7 Kg/m3 (mg/L) 80 kg of cement per m3 100% Tailing
INDUSTRIAL, EXTRACTIVE COMMERCIAL SOIL (mg/L)
TESTING METHOD
1
Arsenic (As)
380
<0. 001
<0. 001
140
EPA 3050 EPA 3051
2
Barium (Ba)
31. 50
<0. 19
<0. 19
2, 000
EPA 3050 EPA 3051
3
Cadmium (Cd)
4. 69
0. 016
0. 005
22
EPA 3050 EPA 3051
4
Copper (Cu)
188. 50
0. 073
0. 072
1, 000
EPA 3050 EPA 3051
5
Chromium (Cr)
7. 50
<0. 011
<0. 011
1.4
EPA 3060 / EPA 7199 o DIN EN 15192
6
Mercury (Hg)
0. 31
0. 0008
0. 0005
24
EPA 6020 o 200.8
7
Lead (Pb)
871. 4
0. 854
0. 346
800
EPA 3050 EPA 3051
8
Selenium (Se)
<0. 02
0. 012
0. 009
9
Zinc (Zn)
1403
0. 859
0. 726