COPPER-CONTAINING WASTEWATER TREATMENT METHOD AND TREATMENT DEVICE

摘要

The copper-containing wastewater containing copper ions, fluoride ions, phosphate ions, and hydrogen peroxide that form an organic material and a complex with the organic matter is adjusted to pH 4 or higher to decompose and remove the hydrogen peroxide and then add a calcium compound and a magnesium compound The reaction is carried out at a pH of 9 to 13 to produce an insoluble substance, and the insolubles are subjected to solid-liquid separation. The concentration of copper, fluorine, and phosphorus in the treated water is further reduced in the treatment of copper-containing wastewater containing copper ions, fluoride ions, phosphate ions, and hydrogen peroxide which form an organic matter and a complex with the organic matter, It is possible to reduce the amount of drug used in the treatment and the amount of generated sludge.;