锑矿废水污染应急处置实验研究

Emergency Disposal of Antimony Ores Wastewater Pollution

为了治理饮用水源地锑矿废水泄漏对水体的污染,使其达到饮用水水质标准,研究了聚合硫酸铁、氯化铁等3种混凝类物质及活性炭粉、蒙脱石粉等4种吸附类物质对含锑废水的处理效果。结果表明,聚合硫酸铁、氯化铁、硫酸亚铁对含锑废水具有良好的处理效果,去除率均达到90%以上。同时,进一步研究了聚合硫酸铁混凝结合硫化钠沉淀处理废水中的锑,废水经两级处理,废水中锑离子质量浓度从3.840 0 mg/L降至0.002 7mg/L,达到国家《生活饮用水卫生标准》(GB 5749—2006)水质标准(Sb质量浓度<0.005 0 mg/L)。

In this paper,the efficiency of 3 kinds of coagulants,such as poly ferric sulphate and iron chlorides and 4 kinds of adsorbents,such as activated charcoal and montmorillonite powder on the treatment of antinomy-containing wastewater are studied to treat potable water source bodies polluted by leaked antimony and make it meet a certain standards.The results indicate that the efficiency of poly ferric sulphate,iron chlorides and vitriol ferrous on the treatment of the antinomy-containing wastewater is good and the removal rate can all reach more than 90%.Further studies,in which flocculation of poly ferric sulphate union precipitation of sodium sulfide is used to treat antimony in the wastewater,are conducted and the mass concentration of waste water is lowered from 3.840 0 mg/L to 0.002 7 mg/L after secondary treatment,meeting the national hygienic standard for drinking water in which the content of antimony is under 0.005 0 mg/L.