改性硅藻土处理含苯胺废水的研究

Study on treatment of wastewater containing aniline by modified diatomite

采用盐酸改性的硅藻土处理含苯胺废水。硅藻土改性实验结果表明,其最佳条件为:改性剂浓度为4mol/L、改性时间为40min、改性温度为35℃。改性硅藻土处理含苯胺废水实验结果表明,其最佳条件为:改性硅藻土加入量为2.0g、吸附温度为35℃、吸附时间为40min。在此条件下,可使50mL废水中苯胺的浓度由50mg/L降至4.6mg/L,苯胺去除率可达到90.5%。

The wastewater containing aniline was treated with diatomite modified with hydrochloric acid.The experimental results of diatomite modification show that the suitable conditions for modification were:the concentration of modifier was 4 mol/L,the modification time was 40 min,and the modification temperature was 35℃.The experiment results of treatment of wastewater containing aniline by modified diatomite indicated that the optimum conditions were:the addition amount of modified diatomite was 2.0 g,the adsorption temperature was 35℃,and the adsorption time was 40min.Under these conditions,the concentration of aniline in 50 mL wastewater could be reduced from 50 mg/L to 4.6 mg/L,and the removal rate of aniline could reach 90.5%.