Page 12 - ImmoCem-PCT-CE Geochem.pdf
P. 12
SEMI-DYNAMIC MONOLITHIC TANK TESTING II-
COMPARING RESULTS
Comparison of results from monolithic semi-dynamic tank testing with granular leaching for stabilised acid tars
Max DOC from granular leaching
following particle size reduction
= 8100 mg/kg (48 hours)
Cummulative Leaching for Dissolved Organic Carbon(mg/l) 100 Cummulative Leaching for Dissolved Organic Carbon(mg/l)
Cummulative Leaching of Dissolved Organic Carbon (mg/l) 70 DOC from monolithic leaching of Cummulative Leaching of Dissolved Organic Carbon (mg/kg) 80
90
90
80
70
60
60
stabilised waste form
50
50
40
40
= 97.2 mg/kg (216 hours)
30
30
20
10
10
0
0 200 400 600 800 1000 20 0 0 200 400 600 800 1000
1/2 1/2
Square Root of Cummulative Leaching Time (seconds ) Square Root of Cummulative Leaching Time (seconds )
Using the derived effective diffusion rate up to F5(9 days) the estimated cumulative DOC
2
leaching @ 64 days = 186 mg/kg (R = 0.9997)
