采用OOT-RAD联合工艺,对某黄金矿山尾矿库淋溶液进行了处理试验研究。其研究结果表明：在碱性条件下,初始pH和气液比对OOT法处理效果有一定影响,但处理效果均较好,氧化剂投加量为417 mg/L时OOT法处理后总氰化合物质量浓度小于0.5 mg/L；经OOT-RAD联合工艺处理后,总氰化合物质量浓度小于0.2 mg/L,铜质量浓度小于0.1 mg/L,COD质量浓度小于50 mg/L。 OOT法与RAD法的联合应用,使其处理工艺结合紧密,新颖独特,使处理黄金矿山尾矿库淋溶液的效果稳定可靠。
The effect the combined process OOT-RAD has in treating leaching solutions in the tailings dam of gold mines is studied in this paper. Studies show that:under alkaline conditions,although initial pH and gas-liquid ra-tio have some impact on the OOT effect,the treating effects are fairly good;when the oxidant dosage is 417 mg/L,the concentration of total cyanide after treatment by OOT is less than 0. 5 mg/L; after OOT-RAD,the concentration of total cyanide is less than 0. 2 mg/L and the concentration of copper is less than 0. 1 mg/L,and COD is less than 50 mg/L. Combining OOT process with RAD process tightly is new and unique,which treats gold mines’ leaching solu-tions in the tailings dam stably and reliably.
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