METHOD FOR TREATING CYANIDE-CONTAINING WASTEWATER
PROBLEM TO BE SOLVED: To provide a method for treating a cyanide-containing wastewater in which the concentration of cyanide in discharged water containing a cyanide compound complexed with metal ions other than cyanide ions can be reduced to ≤1.0 mg/L for sure.SOLUTION: A reaction tank 1 receives c...
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method for treating a cyanide-containing wastewater in which the concentration of cyanide in discharged water containing a cyanide compound complexed with metal ions other than cyanide ions can be reduced to ≤1.0 mg/L for sure.SOLUTION: A reaction tank 1 receives cyanide-containing discharged water (raw water to be treated). In the reaction tank 1, hydrogen peroxide solution or sodium hypochlorite is added, and also caustic soda is added to alkalify the pH of the received cyanide-containing discharged water. Then, cyanide is treated in a treatment facility 2 using the total cyanide method. |
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