粉煤灰合成沸石及吸附废水中Zn^(2+)的研究  

Removal of Zn^(2+) From Waste Water by Zeolite Synthesized From Coal Fly Ash

作　　者：王光辉 冯爱玲[2] 苏立峰[2] 刘贵清 李相良[2] 

机构地区：[1]徐州北矿金属循环利用研究院,江苏徐州221000 [2]北京矿冶研究总院,北京100160

出　　处：《中国资源综合利用》2013年第9期39-41,共3页China Resources Comprehensive Utilization

摘　　要：粉煤灰通过碱熔融预处理后,采用水热合成法合成了单一的NaA型沸石。研究了液固比和晶化时间及温度对合成沸石的影响,并对其饱和吸附量进行了研究。研究表明:水热合成的沸石对锌离子具有很强的脱除能力,其最大饱和吸附量达到172 mg/g,其在水处理领域将具有广阔的应用前景。Single-phase NaA zeolite （ZFA） was synthesized through hydrothermal method （HT） from coal fly ash （CFA） pretreated by NaOH fusion. The effects of liquid-solid ratio, crystallization time and temperature were investigated. At the same time, the saturated adsorption of NaA zeolite was also investigated. The results show that the ZFA through HT has high removal efficiency for Zn2~, and the maximum adsorption capacity reaches to 172 mg/g. So the zeolite will have spacious applied prospect in the realm of water treatment.

关 键 词：粉煤灰 水热合成法 NaA型沸石 含锌废水 

分 类 号：X705[环境科学与工程—环境工程]