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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Research on Alkalinity Based on Activation and Adsorption Performance of Fly Ash
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 1932-1935)
Author(s): Zhen-hua Guo, School of Energy and Environmental Engineering, Hebei Univercity of Technology,, Tianjin ,China
Ya-ke Jia, School of Energy and Environmental Engineering, Hebei Univercity of Technology,, Tianjin ,China
Xin Wang, School of Energy and Environmental Engineering, Hebei Univercity of Technology,, Tianjin ,China
Abstract: According to the characteristics of fly ash, using alkalinity to break the glass surface of the Si–O–Si and Si–O–Al bond and remove impurities from the pore because of its porous network structure, which improves its surfactivity and adsorption property. Scanning electron microscope (SEM) were utilized to investigate the microstructures and action mechanism of fly ash。The results show that under the condition of the same alkali concentration, sodium hydroxide can remarkably improve activation property of fly ash， but ammonia have minor effect on it；Using Alkali-activated fly ash in water treatment，the removal rate of NaOH-activated fly ash on Cr3+ in industrial effluents was 95.49%.It will increase 62.8% ,compared with the one that is un-activated.
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