Synthesis of nano-crystalline zeolite-A and zeolite-X from Indian coal fly ash, its characterization and performance evaluation for the removal of Cs+ and Sr2+ from simulated nuclear waste

2022 ◽  
Vol 423 ◽  
pp. 127085
Author(s):  
Mahima Kumar Murukutti ◽  
Hrudananda Jena
Keyword(s):  
Performance Evaluation ◽  
Fly Ash ◽  
Nuclear Waste ◽  
Coal Fly Ash ◽  
Zeolite A ◽  
Zeolite X ◽  
Indian Coal ◽  
Nano Crystalline ◽  
And Performance

scholarly journals In situ ultrasonic monitoring of zeolite A crystallization from coal fly ash

2012 ◽  
Vol 190 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Nicholas M. Musyoka ◽  
Leslie F. Petrik ◽  
Eric Hums ◽  
Hasan Baser ◽  
Wilhelm Schwieger
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Zeolite A ◽  
Ultrasonic Monitoring

Adsorption of Chromium in Aqueous Solution by Using Zeolite A Prepared from Fly Ash

2018 ◽  
Vol 792 ◽  
pp. 140-144
Author(s):  
Jumaeri ◽  
Eko Sri Kunarti
Keyword(s):  
Aqueous Solution ◽  
Fly Ash ◽  
Contact Time ◽  
Direct Contact ◽  
Adsorption Process ◽  
Coal Fly Ash ◽  
Hydrothermal Process ◽  
Zeolite A ◽  
Adsorption Ability ◽  
Ph Conditions

Adsorption of Cr(III) and Cr(VI) in aqueous solution by the zeolite A from coal fly ash at various conditions has been carried out. Zeolite A was synthesized from fly ash through modified alkaline fusion hydrothermal process in a reactor stainless steel. Adsorption is carried out by direct contact between the adsorbent and adsorbate in an adsorption batch. Zeolite A from fly ash (ZA-FA) of 0.01 g was mixed with 20 mL both Cr(III) and Cr(VI) at various pH, contact time and initial concentration, in a flask Erlenmeyer 50 mL. The result showed that pH conditions of adsorption process, affect the adsorption ability of zeolite A to Cr(III) and Cr(VI) in aqueous solution. The adsorption of Cr(III) and Cr(VI) on zeolite A reached a maximum at pH 6 and time contact 120 minutes. The adsorption of Cr(III) on zeolite A increased from 3.4 mg/g at pH 3 and achieved a maximum adsorption of 42.67 mg/g at pH 6. At higher pH (7-8) the Cr(III) adsorption tends decreases. The adsorption ability of ZA-FA to Cr(III) is higher than that of Cr(VI) in aqueous solution. The Cr(III) adsorption process on ZA-FA follows the pseudo-order 2 kinetics model.

scholarly journals Pure zeolite X synthesized from coal fly ash by pretreatment with solid alkali and using seed crystal

2019 ◽  
Vol 479 ◽  
pp. 012081
Author(s):  
N Q Lv ◽  
T G Zhou ◽  
H Liu ◽  
T T Li ◽  
Y Zhang ◽  
...  
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Seed Crystal ◽  
Zeolite X
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