The invention discloses a high-salt
cyanide-containing
wastewater treatment process and
system, which are mainly used for performing the treatment of
neutralization ,
cyanogen removal,
ammonia nitrogen removal, COD (
Chemical Oxygen Demand) removal and the like on
metal zirconium production
wastewater. The process involves the combined processes of coagulative
precipitation,
ammonia stripping, electrochemical / chemical oxidization, biochemical reaction and the like. The device comprises treatment facilities such as a coagulative
precipitation device, an
ammonia stripping device, an
electrolysis cyanide breaking device, a chemical
cyanide removing device, an electro-
catalysis oxidizing device, a chemical oxidizing device, a water distribution hydrolytic tank, an A / O (Anoxic / Oxic) biochemical tank, and a secondary
precipitation tank. By adopting the high-salt cyanide-containing
wastewater treatment process and
system, the problem related to treatment of high-salt, high-cyanide, high-COD and high-ammonia and
nitrogen wastewater is solved. The wastewater treatment process has a long flow, but the features of different processes are brought into full play; particular pollutants are removed specifically, and the running cost is relatively low; moreover, pollutants such as
cyanogen, COD and
ammonia nitrogen are removed fundamentally, and a stable running effect is achieved.