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http://dx.doi.org/10.7857/JSGE.2018.23.6.082

Application of Chemical Dust Suppressants for Control of Fugitive Dust in Ash pond of Thermal Power Plant  

Choi, Yu-Lim (Department of Environmental Engineering, Kwangwoon University)
Choi, Jong-Soo (Department of Environmental Engineering, Kwangwoon University)
Yang, Jae-Kyu (Ingenium College, Kwangwoon University)
Park, Sun-Hwan (SUNIL Engineering & Consultant Co., LTD)
Joo, Hyun Soo (Korea Environment Institute)
Chang, Yoon-Young (Department of Environmental Engineering, Kwangwoon University)
Publication Information
Journal of Soil and Groundwater Environment / v.23, no.6, 2018 , pp. 82-89 More about this Journal
Abstract
The objective of this study is to evaluate efficiencies of chemical suppressants for control of fugitive dust in ash pond of thermal power plant. In this study, $MgCl_2$, PAM (polyacrylamide), and PVA (poly vinyl alcohol) that are generally applied to suppression of fugitive dust generated from unpaved road, coal mining, storage piles and etc, were employed as chemical dust suppressants. The coal ash (coal combustion residuals) were sampled from the ash pond of Yeongheung power division in Incheon, South Korea. The characterization of the sample including particle size distribution, pH, $pH_{PZC}$ and pore volume as well as XRF analysis were carried out. The suppressant treated-samples were investigated with the wind tunnel experiments to estimate and compare the effect of suppressants on stabilization of the surface of coal ash samples. According to the results, the stability of suppressant-treated samples were significantly improved compared to water-treated samples. Among the three kinds of suppressants, PAM and PVA showed higher efficiencies and cost saving than $MgCl_2$.
Keywords
Fugitive dust; Coal ash; Pond ash; Dust control; Dust suppressant;
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