Nitration of Benzo[a]pyrene Adsorbed on Coal Fly Ash Particles by Nitrogen Dioxide: Role of Thermal Activation

2005 ◽  
Vol 39 (18) ◽  
pp. 6971-6977 ◽  
Author(s):  
Robert L. Kristovich ◽  
Prabir K. Dutta
Keyword(s):  
Fly Ash ◽  
Nitrogen Dioxide ◽  
Thermal Activation ◽  
Coal Fly Ash

Role of additives in improved thermal activation of coal fly ash for alumina extraction

2013 ◽  
Vol 110 ◽  
pp. 114-121 ◽  
Author(s):  
Yanxia Guo ◽  
Yaoyao Li ◽  
Fangqin Cheng ◽  
Miao Wang ◽  
Xuming Wang
Keyword(s):  
Fly Ash ◽  
Thermal Activation ◽  
Coal Fly Ash

The effect of nitrogen dioxide on the photochemical and nonphotochemical degradation of pyrene and benzo[a]pyrene adsorbed on coal fly ash

Chemosphere ◽  
1985 ◽  
Vol 14 (11-12) ◽  
pp. 1771-1778 ◽  
Author(s):  
Robert A. Yokley ◽  
Arlene A. Garrison ◽  
Gleb Mamantov ◽  
E.L. Wehry
Keyword(s):  
Fly Ash ◽  
Nitrogen Dioxide ◽  
Coal Fly Ash

scholarly journals Dual role of coal fly ash in copper ion adsorption followed by thermal stabilization in a spinel solid solution

RSC Advances ◽  
2018 ◽  
Vol 8 (16) ◽  
pp. 8805-8812 ◽  
Author(s):  
Pengfei Wu ◽  
Yuanyuan Tang ◽  
Zongwei Cai
Keyword(s):  
Fly Ash ◽  
Metal Removal ◽  
Coal Fly Ash ◽  
Heavy Metal Removal ◽  
Copper Ion ◽  
Thermal Stabilization ◽  
Cost Effective ◽  
Spinel Solid Solution ◽  
Ion Adsorption

Coal fly ash is usually used as a cost-effective adsorbent for heavy metal removal, accumulating large amounts of spent coal fly ash that requires further disposal.

Leaching Characteristics of Arsenic and Selenium from Coal Fly Ash: Role of Calcium†

2009 ◽  
Vol 23 (6) ◽  
pp. 2959-2966 ◽  
Author(s):  
Tian Wang ◽  
Jianmin Wang ◽  
Yulin Tang ◽  
Honglan Shi ◽  
Ken Ladwig
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash ◽  
Leaching Characteristics

scholarly journals Study on the Overall Reaction Pathways and Structural Transformations during Decomposition of Coal Fly Ash in the Process of Alkali-Calcination

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1163
Author(s):  
Jingjie Yang ◽  
Hongjuan Sun ◽  
Tongjiang Peng ◽  
Li Zeng ◽  
Li Chao
Keyword(s):  
Fly Ash ◽  
Functional Groups ◽  
Structural Parameters ◽  
Coal Fly Ash ◽  
Gaussian Peak ◽  
Deconvolution Analysis ◽  
Calcination Process ◽  
The Cost ◽  
Insight Into

In this research, phase transformation and the role of NaOH on the structure of coal fly ash (CFA) during an alkali-calcination process were identified by a combination of X-ray powder diffraction (XRD), Fourier transform infrared (FTIR) and deconvolution analysis. The variation in the different functional groups and structural parameters of the raw and post-alkali calcinated CFA were analysed by deconvolution of the FTIR results, conducted with a Gaussian approach. The results, firstly, provide a deep insight into the functional groups in CFA. In CFA systems, the vibration signals of Q0, Q1, Q2 and Q3 were detected and the dominant structural units associated with Si tetrahedron groups were isolated to Q3 and Q2. Deconvolution analysis of the band from 400 to 1400 cm−1 showed that the added NaOH resulted in an increase in Q1 at the cost of Q3 and Q2 and the degree of reaction of the CFA was, therefore, decreased. Concurrently, it was established that the changes in the Gaussian peak component were related to the calcination temperature and time that allowed us to tailor the model of the structural decomposition of CFA.

A role of calcium on leaching of trace elements from coal fly ash

2016 ◽  
Vol 2016.26 (0) ◽  
pp. 312
Author(s):  
FARRAH Fadhillah Hanum ◽  
Shinji KAMBARA ◽  
Akihiro TAKEYAMA
Keyword(s):  
Trace Elements ◽  
Fly Ash ◽  
Coal Fly Ash

Thermal activation of coal fly ash by sodium hydrogen sulfate for alumina extraction

2014 ◽  
Vol 49 (12) ◽  
pp. 4315-4322 ◽  
Author(s):  
Chunbin Guo ◽  
Jingjing Zou ◽  
Yinshan Jiang ◽  
Tianping Huang ◽  
Yan Cheng ◽  
...  
Keyword(s):  
Fly Ash ◽  
Thermal Activation ◽  
Coal Fly Ash ◽  
Hydrogen Sulfate ◽  
Sodium Hydrogen

The role of ammonia on mercury leaching from coal fly ash

Chemosphere ◽  
2007 ◽  
Vol 69 (10) ◽  
pp. 1586-1592 ◽  
Author(s):  
Jianmin Wang ◽  
Tian Wang ◽  
Harmanjit Mallhi ◽  
Yu Liu ◽  
Heng Ban ◽  
...  
Keyword(s):  
Fly Ash ◽  
Coal Fly Ash
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