过氧化氢氧化法对某黄金矿山氰化尾矿无害化处理试验研究

摘要

针对某黄金矿山氰化尾矿特点,采用2种不同过氧化氢氧化法对其进行无害化处理试验研究,即直接过氧化氢氧化法和调节pH后过氧化氢氧化法.结果表明,2种方法处理后的尾渣均能达到第Ⅰ类一般工业固体废物标准要求,但直接过氧化氢氧化法操作简单,处理成本低,环境友好,其最佳处理条件为30 %过氧化氢2.5 mL/L,反应时间1 h.%Based on the characteristics of cyanide tailings from a gold mine,experimental research was carried out for the detoxification treatment of them with 2 different hydrogen peroxide oxidation methods:the direct hydrogen per-oxide oxidation method and the pH-adjusted hydrogen peroxide oxidation method.The results show that the tailings treated by the 2 methods both could meet the requirement for ClassⅠcommon industrial solid waste.Considering its easy accessibility,low treatment cost and environmental friendliness,the direct hydrogen peroxide oxidation method stands out.Its optimal treatment conditions are:2.5 mL/L 30 % hydrogen peroxide and 1 h reaction time.