scholarly journals Adsorption, Kinetics and Photoactivity of ZnO-Supported Fly Ash-Sepiolite Ternary Catalyst

2018 ◽  
Author(s):  
Ayşe Neren Ökte
Keyword(s):  
Fly Ash ◽  
Adsorption Kinetics ◽  
Ternary Catalyst

scholarly journals Adsorption kinetics and modeling of H2S by treated waste oil fly ash

2018 ◽  
Vol 69 (2) ◽  
pp. 246-257 ◽  
Author(s):  
Zaheer Aslam ◽  
Ibnelwaleed A. Hussein ◽  
Reyad A. Shawabkeh ◽  
Mohammad Anwar Parvez ◽  
Waqar Ahmad ◽  
...  
Keyword(s):  
Fly Ash ◽  
Adsorption Kinetics ◽  
Waste Oil ◽  
Oil Fly Ash

Adsorption and Regeneration Characteristics of Granular Adsorbent Based on Coal Fly Ash for Methylene Blue Removal

2013 ◽  
Vol 773 ◽  
pp. 899-906 ◽  
Author(s):  
Jing Wang ◽  
Chang Sheng Peng ◽  
Zhong Fu Yang ◽  
Dan Dan Li ◽  
Yu Ting Wu
Keyword(s):  
Methylene Blue ◽  
Fly Ash ◽  
Adsorption Kinetics ◽  
Coal Fly Ash ◽  
Regeneration Ability ◽  
Initial Ph ◽  
Adsorption Processes ◽  
Regeneration Efficiency ◽  
Adsorption Amount ◽  
Granular Adsorbent

In a previous work, a granular adsorbent based on coal fly ash (GAF) has been prepared and the adsorption amount of methylene blue (MB) reached 278.55mg/g, which is comparable with granular activated carbon. To study its adsorption and regeneration characteristics for MB removal, influencing factors on adsorption, regeneration efficiency, adsorption kinetics and thermodynamics characteristics were investigated. The results indicate that the adsorption amount of MB increased with the increasing of contact time, initial concentration and adsorption temperature, while the initial pH has no significant influence. After 4 times regeneration cycles the regeneration efficiency remains 92% indicating that GAF has desirable regeneration ability. Isothermal studies show that Langmuir and Temkin isothermal models fit the adsorption processes well, indicating that the adsorption should be monolayer adsorption and may existing ion-exchange. Intraparticle diffusion describes the adsorption kinetics processes best. Thermodynamics research reveals the spontaneous and endothermic nature of the adsorption processes.

Adsorption kinetics of vapor-phase m-xylene on coal fly ash

1991 ◽  
Vol 25 (5) ◽  
pp. 930-935 ◽  
Author(s):  
Simon J. Rothenberg ◽  
Glen Mettzler ◽  
Jeff Poliner ◽  
William E. Bechtold ◽  
Arthur F. Eidson ◽  
...  
Keyword(s):  
Fly Ash ◽  
Vapor Phase ◽  
Adsorption Kinetics ◽  
Coal Fly Ash ◽  
Kinetics Of

Characterization of lead-bearing phases in municipal waste combustor fly ash

1996 ◽  
Vol 54 ◽  
pp. 516-517
Author(s):  
L. L. Sutter ◽  
G. R. Dewey ◽  
J. F. Sandell
Keyword(s):  
Fly Ash ◽  
Bottom Ash ◽  
Municipal Waste ◽  
Primary Concern ◽  
Leaching Behavior ◽  
Waste Combustion ◽  
Lead And Cadmium ◽  
Lead Speciation ◽  
Accepted Practice

Municipal waste combustion typically involves both energy recovery as well as volume reduction of municipal solid waste prior to landfilling. However, due to environmental concerns, municipal waste combustion (MWC) has not been a widely accepted practice. A primary concern is the leaching behavior of MWC ash when it is stored in a landfill. The ash consists of a finely divided fly ash fraction (10% by volume) and a coarser bottom ash (90% by volume). Typically, MWC fly ash fails tests used to evaluate leaching behavior due to high amounts of soluble lead and cadmium species. The focus of this study was to identify specific lead bearing phases in MWC fly ash. Detailed information regarding lead speciation is necessary to completely understand the leaching behavior of MWC ash.

INFLAMMATION, CHEMOKINE EXPRESSION, AND DEATH IN MONOCROTALINE-TREATED RATS FOLLOWING FUEL OIL FLY ASH INHALATION

1997 ◽  
Vol 9 (6) ◽  
pp. 541-565 ◽  
Author(s):  
Cheryl R. Killingsworth ◽  
Francesca Alessandrini ◽  
G. G. Krishna Murthy ◽  
Paul J. Catalano ◽  
Joseph D. Paulauskis ◽  
...  
Keyword(s):  
Fly Ash ◽  
Fuel Oil ◽  
Chemokine Expression ◽  
Oil Fly Ash
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