scholarly journals CO2 sequestration and simultaneous zeolite production by carbonation of coal fly ash: Impact on the trapping of toxic elements

2020 ◽  
Vol 40 ◽  
pp. 101263
Author(s):  
Luis Monasterio-Guillot ◽  
Pedro Alvarez-Lloret ◽  
Aurelia Ibañez-Velasco ◽  
Alejandro Fernandez-Martinez ◽  
Encarnación Ruiz-Agudo ◽  
...  
Keyword(s):  
Fly Ash ◽  
Co2 Sequestration ◽  
Toxic Elements ◽  
Coal Fly Ash ◽  
Zeolite Production

Integration of a diamine solvent based absorption and coal fly ash based mineralisation for CO2 sequestration

2019 ◽  
Vol 192 ◽  
pp. 220-226 ◽  
Author(s):  
Bing Yu ◽  
Hai Yu ◽  
Kangkang Li ◽  
Long Ji ◽  
Qi Yang ◽  
...  
Keyword(s):  
Fly Ash ◽  
Co2 Sequestration ◽  
Coal Fly Ash

scholarly journals Adsorption of As, B, Cr, Mo and Se from coal fly ash leachate by Fe3+ modified bentonite clay

2015 ◽  
Vol 6 (3) ◽  
pp. 382-391 ◽  
Author(s):  
Masindi Vhahangwele ◽  
Gitari W. Mugera ◽  
Tutu Hlanganani
Keyword(s):  
Fly Ash ◽  
Toxic Elements ◽  
Coal Fly Ash ◽  
Bentonite Clay ◽  
Potentially Toxic Elements ◽  
Subsurface Water ◽  
Modified Bentonite ◽  
Adsorption Affinity ◽  
Adsorbate Concentration ◽  
Five Elements

Fly ash contains the potentially toxic elements As, B, Cr, Mo and Se which upon contact with water may be leached to contaminate surface and subsurface water bodies. This study aims to evaluate the adsorption of these elements from coal fly ash leachates on Fe3+-modified bentonite (Fe-Bent); such modification improved the physicochemical properties of bentonite clay. For optimization of adsorption of the five elements, the effects of time, adsorbent dosage, adsorbate concentration, and pH were optimized. Adsorption affinity of oxyanions followed in the order B = Se > Mo > Cr = As. Experimental data fitted well to Langmuir and Freundlich adsorption isotherms.

Carbonation of brine impacted fractionated coal fly ash: Implications for CO2 sequestration

2011 ◽  
Vol 92 (3) ◽  
pp. 655-664 ◽  
Author(s):  
Muriithi Grace Nyambura ◽  
Gitari Wilson Mugera ◽  
Petrik Leslie Felicia ◽  
Ndungu Patrick Gathura
Keyword(s):  
Fly Ash ◽  
Co2 Sequestration ◽  
Coal Fly Ash

A Novel Method for CO2 Sequestration via Indirect Carbonation of Coal Fly Ash

2013 ◽  
Vol 52 (43) ◽  
pp. 15138-15145 ◽  
Author(s):  
Lanlan He ◽  
Dunxi Yu ◽  
Weizhi Lv ◽  
Jianqun Wu ◽  
Minghou Xu
Keyword(s):  
Fly Ash ◽  
Co2 Sequestration ◽  
Coal Fly Ash ◽  
Novel Method
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