赤泥处理含镉废水的实验室研究  

Lab research on the treatment of wastewater containing cadmium by using red mud

作　　者：罗旭[1] 魏保立[1] 袁彪[1] 

机构地区：[1]郑州航空工业管理学院,河南郑州081001

出　　处：《工业水处理》2014年第8期76-77,共2页Industrial Water Treatment

基　　金：河南省教育厅自然科学项目(2010A610004)

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。The effects of dosage of red mud, pH, reaction time and temperature on the cadmium removing effective- ness 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.

关 键 词：赤泥 吸附 含镉废水 

分 类 号：X703[环境科学与工程—环境工程]