Treatment method of gold extraction cyaniding wastewater containing copper and iron ions with high concentration

The invention discloses a treatment method of gold extraction cyaniding wastewater containing copper and iron ions with a high concentration. The treatment method comprises the steps of with zinc salt as a precipitator, removing a most part of free cyanogens and copper, iron and zinc ions in a solution, and further recovering residual cyanogens ions and other valuable metal ions in the solution after precipitation by using strong basic resin as an adsorbent to enable the wastewater to be discharged up to the standard. Due to the adoption of the treatment method, cyanide and the valuable metal ions in the gold extraction wastewater are furthest recovered by virtue of the two-step process of precipitation and resin adsorption; and moreover, as the treated wastewater can return to a leaching system or be directly discharged according to the needs, the treatment method is very strong in the flexibility, is low in treatment cost for treating the cyaniding wastewater with higher copper and iron contents and has a remarkable economic benefit.