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Utilization of fly ash from coal-fired power plants in China

Utilization of fly ash from coal-fired power plants in China The rapidly increasing demand for energy in China leads to the construction of new power plants all over the country. Coal, as the main fuel resource of those power plants, results in increasing problems with the disposal of solid residues from combustion and off gas cleaning. This investigation describes chances for the utilization of fly ash from coal-fired power plants in China. After briefly comparing the situation in China and Germany, the status of aluminum recycling from fly ash and the advantages for using fly ash in concrete products are introduced. Chemical and physical analyses of Chinese fly ash samples, e.g., X-ray diffraction (XRD), ICP (Inductive Coupled Plasma) and particle size analysis, water requirement, etc. are presented. Reasonable amounts of aluminum were detected in the samples under investigation, but for recovery only sophisticated procedures are available up to now. Therefore, simpler techniques are suggested for the first steps in the utilization of Chinese fly ash. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Zhejiang University - Science A Springer Journals

Utilization of fly ash from coal-fired power plants in China

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References (9)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Zhejiang University and Springer-Verlag GmbH
Subject
Engineering; Industrial Chemistry/Chemical Engineering; Mechanics, Fluids, Thermodynamics; Civil Engineering; Mechanical Engineering
ISSN
1673-565X
eISSN
1862-1775
DOI
10.1631/jzus.A072163
Publisher site
See Article on Publisher Site

Abstract

The rapidly increasing demand for energy in China leads to the construction of new power plants all over the country. Coal, as the main fuel resource of those power plants, results in increasing problems with the disposal of solid residues from combustion and off gas cleaning. This investigation describes chances for the utilization of fly ash from coal-fired power plants in China. After briefly comparing the situation in China and Germany, the status of aluminum recycling from fly ash and the advantages for using fly ash in concrete products are introduced. Chemical and physical analyses of Chinese fly ash samples, e.g., X-ray diffraction (XRD), ICP (Inductive Coupled Plasma) and particle size analysis, water requirement, etc. are presented. Reasonable amounts of aluminum were detected in the samples under investigation, but for recovery only sophisticated procedures are available up to now. Therefore, simpler techniques are suggested for the first steps in the utilization of Chinese fly ash.

Journal

Journal of Zhejiang University - Science ASpringer Journals

Published: May 1, 2008

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