The invention discloses a deep treatment method for
cyanide-containing waste water of a
tailings pond in the gold industry. The process adopts an
ozone oxidation method, a
catalytic oxidation method and a biological treatment method to collectively deeply treat the
cyanide-containing waste water of the
tailings pond in the gold industry. Through the combination of the three methods, a good
treatment effect on the
cyanide,
thiocyanate,
arsenic and
heavy metals is good, the content of the cyanide after being treated is less than or equal to 0.05mg / L, the content of
ammonia and
nitrogen after being treated is less than 1mg / L, and other pollutants after being treated can meet the requirement of the ground
surface water grade-B
water quality standard. The method is used for treating the cyanide-containing waste water of the
tailings pond in the gold industry, the
treatment effect on the cyanide, the COD, As and
heavy metals is good, the
heavy metals such as the gold and silver as well as other
metal resource can be recovered, and the secondary
pollution caused by the
ammonia and
nitrogen can be avoided. By adopting the deep treatment method for the cyanide-containing waste water of the tailings pond, a good environment, a good economic benefit and a good social benefit can be achieved.