Abstract:

Based on using wet pure gold mud of enterprise deal with cyanide wastewater,we refinery gold using chloride pure gold mud,because gold mud contains a large number of cyanide,cyanide wastewater treatment processes produced in the prepreg general is 2 000 mg/L.State regulations contain cyanide concentration may not exceed 0.5 mg/L,this enterprise requirement of cyanide wastewater discharge concentrations may not exceed 0.04 mg/L,leaching of wastewater treatment must pass off cyanide to discharge.By actual fumbling with refinery process equipment, using existing acid chloride and adsorption method to emerge cyanide in wastewater,cyanide complex total content 0.04 mg/L，achieve wastewater discharge standards.

Key words: Wastewater, Cyanide, Acid chloride, Active carbon absorption method