非均相催化氧化浸金废水中的SCN~-

发布时间：2018-01-01 20:41

  本文关键词：非均相催化氧化浸金废水中的SCN~-　出处：-《大连工业大学学报》2016年06期 　论文类型：期刊论文

  更多相关文章： 非均相 催化氧化 硫氰酸根离子 活性炭

【摘要】：以活性炭为载体,Fe、Cu为催化剂,催化氧化浸金废水中的SCN~-,考察了活性炭的性能、催化剂种类、浸渍浓度、pH、温度等因素对氧化效果的影响;通过XRD考查了催化剂负载在活性炭上的特征。实验结果表明,椰壳炭浸渍在0.25mol/L硝酸铜24h,浸渍催化剂在105℃下焙烧24h;干燥后的催化剂在pH 6~7、20~30℃催化氧化500mL 40mg/L的硫氰酸钾2h,催化氧化活性最好,对SCN~-的去除率可达90%。
[Abstract]:The activity of activated carbon, the type of catalyst and the pH value of the impregnation concentration were investigated by catalytic oxidation of SCN- in gold leaching wastewater with activated carbon as the carrier. The effect of temperature and other factors on oxidation effect; The characteristics of activated carbon supported on the catalyst were investigated by XRD. The experimental results showed that the coir carbon was impregnated at 0.25 mol / L copper nitrate for 24 h, and the impregnated catalyst was calcined at 105 鈩，

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