利用Cu-Fe复合金属氧化物净化水中的磷  

Phosphate Removal From Aqueous Solution Using Cu-Fe Bimetal Oxide

作　　者：许可[1] 陶贺[1] 邓彤[2] 彭伟功[1] 刘军坛[1] 

机构地区：[1]郑州航空工业管理学院,郑州450015 [2]中国科学院过程工程研究所,北京100080

出　　处：《工业安全与环保》2015年第5期18-20,共3页Industrial Safety and Environmental Protection

基　　金：河南省科技攻关项目(122102310581)

摘　　要：研究了利用Cu-Fe复合金属氧化物净化水中磷的过程。实验结果表明,在吸附剂的制备过程中,加入Cu可以显著提高吸附剂对水中磷的净化效率,Cu的适宜加入量为Cu/Fe摩尔比1∶2。在磷净化过程中,p H值对Cu-Fe复合金属氧化物的净化效率有显著影响,较低的p H值有利于磷的净化;水中磷的净化率随吸附剂用量的增加而增加,适宜的投加量为0.2 g/100 m L;吸附剂对水中磷的净化速度较快,磷的吸附率在5 min内达到87.08%,吸附2 h达到平衡,磷的净化率为98.85%;Cu-Fe复合金属氧化物净化水中磷的吸附等温线符合Langmuir方程,磷的最大吸附量为11.36 mg/g。The adsorption of phosphate using the Cu- Fe bimetal oxide is studied. The experimental results show that in the preparation of the adsorbent,the addition of Cu could significantly improve the phosphate removal efficiency of the adsorbent and the optimal Cu / Fe molar ratio is 1∶ 2. In the purification process,p H significantly affects the phosphate removal and lower p H is favorable for the removal of phosphate. The removal efficiency of phosphate increases with the increase of adsorbent dosage and the optimum adsorbent dosage is 0. 2 g /100 m L. The adsorption of phosphate by the adsorbent is rapid,the adsorption percentage could reach 87. 08% in 5 min and the equilibrium adsorption percentage of 98. 85% can be attained in 2 h. The adsorption of phosphate could be well described by Langmuir isotherm and the Langmuir constant is 11. 36 mg / g.

关 键 词：Cu-Fe复合金属氧化物 磷 净化 吸附 

分 类 号：X703[环境科学与工程—环境工程]