摘要
以稀硫酸和稀土元素镧离子改性天然沸石,制得改性稀土沸石。采用正交试验研究改性稀土沸石吸附处理模拟含镉废水,结果表明:在改性稀土沸石投加量为1.3g/L、p H值为6、吸附时间100min和反应温度20℃条件下,浓度为50mg/L模拟含镉废水中镉的去除率可达98%以上。
The zeolite is modified by dilute sulphuric acid and rare earths elements Lanthanum ion, obtain modified rare earth zeolite. The simulation experiment on the treatment for wastewater containing cadmium with modified rare earth zeolite absorption is conducted by the orthogonal method. The results show that the removal rate of the simulation wastewater containing cadmium that the density is 50mg/L can be over 98% with the dosage of rare earth zeolite is 1.3g/L, pH is 6, the contacting time is 100min and reaction temperature 20℃.
出处
《中国非金属矿工业导刊》
2015年第2期25-27,共3页
China Non-Metallic Minerals industry
关键词
沸石
稀土
吸附
含镉废水
rectorite
rare earth
adsorption
wastewater containing cadmium
