活化斜发沸石吸附除水中氟的研究  

A STUDY ON REMOVAL OF FLUORIDES FROM WATER BY ADSORPTION ONTO ACTIVATED CLINOPTILOLITE

作　　者：詹予忠[1] 李玲玲[1] 俞晓江[1] 朱丽娟[1] 

机构地区：[1]郑州大学化工学院,郑州450002

出　　处：《中国矿业》2006年第2期68-70,共3页China Mining Magazine

摘　　要：采用静态吸附法研究了盐酸活化斜发沸石的吸附除氟性能,研究了活化酸浓度、pH值、接触时间、吸附剂量等对吸附的影响。结果表明,活化斜发沸石的吸附性能随活化酸浓度的增加而提高。活化斜发沸石吸附氟在2h内可以接近达到吸附平衡。溶液pH对吸附性能影响很大,吸附的最佳pH值约为4。吸附等温线可用Freundich吸附等温线方程描述,吸附速率可用拟二级动力学方程描述。Clinoptilolite activated by hydrochloric acid was studied by static adsorption method to assess its capacity for the adsorption of fluoride, The Influence of hydrochloric acid concentration, pH valve, contact time and adsorbent dose on tbe adsorption was investigated, The results showed that the adsorption property increased with increasing concentration of hydrochloric acid. The adsorption equilibrium could reach in 2h. The pH of the solution influenced the adsorption significantly, and the optimized pH was 4. The adsorption isotherms could be modeled by Freundich equation, The adsorption rate could be described by psecdo-second-order kinetics equation

关 键 词：除氟 吸附 活化斜发沸石 吸附动力学 吸附等温线 

分 类 号：O647.3[理学—物理化学] X791[理学—化学]