摘要：

采用静态吸附方法研究了赤泥用量、pH、反应时间和温度对去除废水中镉效果的影响。结果表明，赤泥对镉离子有较好的吸附性能，吸附率达到95.32%。当镉离子初始质量浓度为10 mg/L时，赤泥合适的投加量为1 g/L，反应时间为1 h，温度越高吸附率越高；溶液pH越高吸附率越高，在碱性环境中会发生沉淀作用。

关键词: 赤泥, 吸附, 含镉废水

Abstract:

The effects of dosage of red mud,pH,reaction time and temperature on the cadmium removing effectiveness from wastewater by static adsorption method have been studied. The results show that red mud has pretty good adsorption capacity. Its adsorption rate has reached 95.32%. When the initial mass concentration of cadmium ions is 10 mg/L,the appropriate red mud dosage is 1 g/L,and reaction time 1 h. The higher the temperature is,the higher the adsorption rate. The higher the solution pH is,the higher the adsorption rate. Precipitation occurs in alkaline environment.

Key words: red mud, adsorption, wastewater containing cadmium

中图分类号: 

• X703