本文已被：浏览 2106次 下载 1887次
投稿时间：2015-11-03 修订日期：2016-07-06
投稿时间：2015-11-03 修订日期：2016-07-06
中文摘要: 针对企业含氰废水处理成本高的问题,本文设计了新型高效的酸化-吹脱-吸收装置并进行大量试验,最佳工艺条件为：pH值2.5,时间30 min,温度30 ℃以上,废水循环流量1 m3/h,风机循环风量900 m3/h,吸收液NaOH浓度20%以上,温度10℃时,HCN吹脱率达99 %以上,吸收率达96%以上,酸化残液CN- < 3.5 mg/L,浓度大幅降低,运行时间大大缩短。酸化残液采用SO2/Air法深度氧化后废液中CN-< 0.1 mg/L,达到排放和循环使用标准。成套设备投资较少,运行效率高,生产成本低,操作简便,可为黄金生产企业提供较大便利。
Abstract:There is a problem that Cyanide waste water treatment cost is high at enterprises, a new type of efficient acidification-blowing off-absorption equipment was designed to solve it, with a large number of trials. Result shows: the optimum technological condition, pH 2.5, 30 min time, temperature 30 ℃ above, waste water circulation flow 1 m3/h, air volume of 900 m3/h, absorbing liquid 20% NaOH concentration, temperature 10 ℃, The removing rate of HCN is above 99%, the absorption rate is more than 96%, acidification residual liquid CN- < 3.5 mg/L, with a much lower concentration and shorten operation time. The residual liquid waste liquid after using SO2 / Air deep oxidation of CN- < 0.1 mg/L, to meet the emissions and recycling standards. Complete sets of equipment with less investment, high efficiency, low production cost, simple operation, can provide greater convenience for gold production enterprises.
文章编号：20151103002 中图分类号： 文献标志码：
基金项目:北京矿冶研究总院科研(2011-151)
引用文本：
孙彦文,孙留根,梁东东,徐晓辉.含氰废水综合处理技术试验[J].矿冶,2016,25(5):67~71.
孙彦文,孙留根,梁东东,徐晓辉.含氰废水综合处理技术试验[J].矿冶,2016,25(5):67~71.
关注微信公众号