Restorative method for soil polluted by cyanide
The invention discloses a restorative method for soil polluted by cyanide. According to the characteristics that the soil polluted by cyanide comprises the cyanide, heavy metal and various pollutants and particularly according to the characteristic that the cyanide further comprises metal cyanide co...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention discloses a restorative method for soil polluted by cyanide. According to the characteristics that the soil polluted by cyanide comprises the cyanide, heavy metal and various pollutants and particularly according to the characteristic that the cyanide further comprises metal cyanide complex, such as iron cyanide complex, difficult to treat, firstly, ferrous sulfate and zinc sulfate are selected to fix the iron cyanide complex and various kinds of metal in the soil, and then the cyanide difficult to treat, sulfocyanide and other pollutants remaining in the soil are treated through ozone. The cyanide and various kinds of metal in the treated soil meet the national soil environment quality evaluation requirement. |
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