Changes in physico-chemical, microbiological and biochemical parameters during composting and vermicomposting of coal fly ash: a comparative study

2018 ◽  
Vol 16 (8) ◽  
pp. 4647-4664 ◽  
Author(s):  
Z. Usmani ◽  
V. Kumar ◽  
R. Rani ◽  
P. Gupta ◽  
A. Chandra
Keyword(s):  
Fly Ash ◽  
Comparative Study ◽  
Biochemical Parameters ◽  
Coal Fly Ash ◽  
Physico Chemical

Comparative study of the adsorption of micropollutant contained in aqueous phase using coal fly ash and activated coal fly ash: Kinetic and isotherm studies

2019 ◽  
Vol 23 ◽  
pp. 100265 ◽  
Author(s):  
Marouane El Alouani ◽  
Saliha Alehyen ◽  
Mohammed El Achouri ◽  
M'hamed Taibi
Keyword(s):  
Fly Ash ◽  
Comparative Study ◽  
Aqueous Phase ◽  
Coal Fly Ash ◽  
Activated Coal

Physico-Chemical Characterization and Leaching of Desulphurization Coal Fly Ash

1996 ◽  
Vol 14 (1) ◽  
pp. 15-28 ◽  
Author(s):  
I. Lecuyer ◽  
S. Bicocchi ◽  
P. Ausset ◽  
R. Lefevre
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Chemical Characterization ◽  
Physico Chemical

Comparative study on the characteristics of ball-milled coal fly ash

2015 ◽  
Vol 124 (2) ◽  
pp. 839-846 ◽  
Author(s):  
Hui Li ◽  
Ying Chen ◽  
Yan Cao ◽  
Guijian Liu ◽  
Buqing Li
Keyword(s):  
Fly Ash ◽  
Comparative Study ◽  
Coal Fly Ash

Properties of Ceramic Filter Material Made of Coal Fly Ash and its Application in Chromium(VI) Removal

2010 ◽  
Vol 105-106 ◽  
pp. 631-634 ◽  
Author(s):  
Zhao Qian Jing ◽  
Hong Qin Xue ◽  
Shao Hua Lin ◽  
Zheng Wang
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Filter Material ◽  
Ceramic Filter ◽  
High Porosity ◽  
Freundlich Model ◽  
X Ray ◽  
Chromium Vi ◽  
Physico Chemical ◽  
Mercury Porosimeter

Ceramic filter material was developed mainly with coal fly ash and used as an absorbent for Cr(VI) removal. This material was characterized through physico-chemical analysis with scanning electron microscope (SEM), energy dispersive X-ray spectrometry (EDS) and mercury porosimeter. Then static adsorption experiment was carried out to study adsorption characteristics of Cr(VI) on this filter material. SEM patterns indicated this material had enormous specific surface area and high porosity. EDS results showed this material was mainly composed of O, Si, C, Al, Mg, Fe, Ca and K in various compounds. Total pore area and porosity above 1.5 nm were 66.8 m2/g and 60.1% respectively. The main parameters affecting Cr(VI) adsorption were dosage and contact time. 200 g/l dosage of this filter material could remove more than 90% of Cr(VI) to solution with 20 mg/l initial concentration. Adsorption isotherm accorded with both Langmuir and Freundlich model. The study proved this ceramic filter material was a good adsorbent with high adsorption capacity to Cr(VI).

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