粉煤灰基分子筛的制备及吸附和再生性能的研究  

Preparation of Fly Ash-based Zeolite Adsorption and Regeneration Properties

作　　者：张景峰[1] 王许云[1] 郭庆杰[1] 

机构地区：[1]青岛科技大学化工学院清洁化工过程山东省高校重点实验室,山东青岛266042

出　　处：《山东化工》2013年第2期44-47,共4页Shandong Chemical Industry

基　　金：教育部博士点专项基金(20103719120004);山东省杰出青年基金(JQ200904)

摘　　要：以粉煤灰为基本原料,采用两步水热合成法成功合成了NaA分子筛,将合成的NaA分子筛应用于电镀重金属废水的吸附处理研究。研究表明,NaA分子筛对Zn2+等重金属离子有良好的吸附性能。采用超声波法对分子筛进行再生,以再生分子筛对含锌离子的重金属废水吸附性能为指标,系统研究了再生时间、超声波功率和再生温度等因素对吸附剂再生效果的影响。实验研究表明,超声波再生的最佳条件为:超声波再生时间为10 min、超声波再生功率为60%、再生温度为35℃。Single -phase NaA zeolite were synthesized using fly ash as raw material, two steps hydrothermal treatment process method was applied in the research. The prepared NaA zeolites were used to adsorb heavy metal ions in electroplating wastewater. The adsorption experiment results showed that, the prepared NaA zeolite had outstanding adsorption performance on the heavy metal ions such as Zn2 ＋ The ultrasonic method of zeolite regeneration, wastewater adsorption performance indicators, the and the regeneration temperature , and other experimental regeneration regeneration zeolite of zincions of heavy metals in system of the regeneration time , the ultrasonic power factors on the adsorbent regeneration effect. The study shows that the optimum conditions were： ultrasonic regeneration ultrasonic time 10min, ultrasonic reproduction power is 60%, the regeneration temperature of 35℃.

关 键 词：粉煤灰 两步水热合成 NaA分子筛 超声波再生 

分 类 号：X705[环境科学与工程—环境工程] TQ424.2[化学工程]