Research Article
Reduction and Heavy Metal Stabilization of River Sediment by Hydrothermal Treatment
Table 7
Leaching toxicity of heavy metals in RS and HS.
| | Sample | Zn (mg/kg) | Cu (mg/kg) | Cr (mg/kg) | Cd (mg/kg) | Ni (mg/kg) | Pb (mg/kg) |
| | RS | | | | | | | | HS-180-3 | | | | | | | | HS-220-3 | | | | | | | | HS-260-3 | | | | | | | | HS-260-0.5 | | | | | | | | HS-260-6 | | | | | | | | International permissible leaching limits | 25 | — | 5 | 0.5 | 1 | 5 |
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