粉煤灰合成沸石的吸附性能及其机理研究  

Study on Adsorption Performance and Mechanism of Synthetic Zeolite from Fly Ash

作　　者：王光辉 李敏 郭峰 冯爱玲[4] 张帆 

机构地区：[1]徐州北矿金属循环利用研究院,江苏徐州221006 [2]中原利达铁路轨道技术发展有限公司,郑州450100 [3]江西理工大学冶金与化学工程学院,江西赣州341000 [4]北京矿冶研究总院,北京100160

出　　处：《中国资源综合利用》2017年第9期35-39,共5页China Resources Comprehensive Utilization

摘　　要：本文以粉煤灰为原料,采用碱熔预处理-水热合成的方式合成NaA型沸石。笔者不仅通过XRD和SEM对产品进行表征,还通过吸附试验研究了初始浓度、液固比、吸附时间和初始pH对吸附重金属离子的影响。结果表明,经过XRD分析,合成沸石为NaA型沸石,常温条件下,其对Zn^(2+)、Cu^(2+)、Cd^(2+)的去除率可以达到99%,实现了重金属废水的无害化处理。In this paper, NaA zeolite was synthesized by alkali-melting pretreatment and hydrothermal synthesis using fly ash as raw material. The effects of initial concentration, liquid-solid ratio, adsorption time and initial pH on the adsorption of heavy metal ions were studied by adsorption experiment not only by XRD and SEM. The results show that the removal rate of Zn^（2＋）, Cu^（2＋） and Cd^（2＋） can reach 99% under the condition of normal temperature, and the harmless treatment of heavy metal wastewater is realized by XRD analysis.

关 键 词：粉煤灰 NaA型沸石 重金属 离子吸附 

分 类 号：TQ424.25[化学工程]