Study on the Reuse of Solid Waste from Coal-Fired Power Plants

Dong Mei Li; Xue Feng Dong; Yang Guo; Yuan Li; Wen Long Wu

doi:10.4028/www.scientific.net/AMR.356-360.2031

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 356-360Study on the Reuse of Solid Waste from Coal-Fired...

Study on the Reuse of Solid Waste from Coal-Fired Power Plants

Abstract:

Lime residuals left from water softening process reused as desulferizer in the coal-fired power plants has been reported. The active composition (CaO) is 43.06 %. 98.77% of lime residuals are particles smaller than 45 µm. The dissolution rate of lime residuals is higher than that of limestone. The results show that the reuse of lime residuals shall facilitate the absorbance of SO₂ and enhance the efficiency of desulfurization. Additional corrosion of apparatus and pipes, the slurry bubble or overflow has not been observed during the experiment. The water consumption can be largely reduced, and the gypsum matches the reuse standard. Coal ashes and gypsum are concluded for many kinds of applications.

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Periodical:

Advanced Materials Research (Volumes 356-360)

Pages:

2031-2035

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.356-360.2031

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Online since:

October 2011

Authors:

Dong Mei Li, Xue Feng Dong, Yang Guo, Yuan Li, Wen Long Wu

Keywords:

Desulfurizer, Dissolution Rate, Efficiency of Desulfurization, Flue Gas Desulfurization Systems, Lime Residuals, Zero-Liquid Discharge

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