Reduction and Heavy Metal Stabilization of River Sediment by Hydrothermal Treatment
Table 5
RAC of heavy metals in RS and HS.
Samples
RAC
Zn
Cu
Cr
Cd
Ni
Pb
RS
48.45/HR
8.42/LR
1.53/LR
12.88/MR
15.19/MR
12.50/MR
HS-180-3
31.08/HR
2.72/LR
1.28/LR
11.17/MR
7.93/LR
10.32/LR
HS-220-3
22.51/MR
2.20/LR
1.27/LR
10.20/LR
6.48/LR
7.96/LR
HS-260-3
14.98/MR
1.56/LR
1.16/LR
7.83/LR
5.51/LR
6.05/LR
HS-260-0.5
45.87/HR
6.07/LR
1.36/LR
11.94/LR
14.35/MR
11.39/MR
HS-260-6
10.46/LR
0.90/NR
1.15/LR
6.74/LR
4.67/LR
5.10/LR
Note: NR: no risk, representing there is risk free; LR: low risk, representing there is a low risk; MR: medium risk, representing there is a medium risk; HR: high risk, representing there is a high risk.
