Using Coal Fly Ash and Wastewater for Microwave Synthesis of LTA Zeolite

被引：67
作者：
Behin, Jamshid [1 ,2 ]
Bukhari, Syed Salman [1 ]
Dehnavi, Vahid [1 ]
Kazemian, Hossein [1 ]
Rohani, Sohrab [1 ]
机构：
[1] Univ Western Ontario, Dept Chem & Biochem Engn, London, ON N6A 589, Canada
[2] Razi Univ, Dept Chem Engn, Kermanshah, Iran
来源：
CHEMICAL ENGINEERING & TECHNOLOGY | 2014年 / 37卷 / 09期
关键词：
Coal fly ash; Industrial waste; Plasma electrolytic oxidation; Wastewater treatment; Zeolite LTA; SEEDS CHARACTERIZATION; HYDROTHERMAL REACTION; 2-STEP PROCESS; SINGLE-PHASE; NA-A; OPTIMIZATION; PERFORMANCE; ADSORPTION; SEPARATION; MEMBRANES;
D O I：
10.1002/ceat.201400225
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The reuse of industrial wastes from a coal-fired power plant and a plasma electrolytic oxidation process was attempted to realize a zero discharge. The batch composition was adjusted by adding sodium hydroxide and sodium aluminate. A single-mode microwave oven equipped with reflux condenser was used for crystallization under atmospheric pressure. The synthesized samples were characterized by X-ray diffraction, scanning electron microscopy, BET, thermogravimetric analysis, and cation-exchange capacity (CEC) measurement. Analytical results indicated that Na-A zeolite with a defined maximum crystallinity could be successfully synthesized by hydrothermal treatment of fly ash with wastewater. Due to the high CEC, the product can be applied for gas purification and soil remediation processes.
引用
收藏
页码：1532 / 1540
页数：9
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