Efficacy of Starch and PVA (polyvinyl alcohol) for the Suppression of Soil Dust Emissions from Large-scale Construction Sites in Urban Areas

Jong-Soo Choi; Dong-Su Kim; Yu-Lim Choi; Jung-Eun Kim; Jae-Kyu Yang; Yoon-Young Chang

doi:10.7857/JSGE.2019.24.6.009

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Efficacy of Starch and PVA (polyvinyl alcohol) for the Suppression of Soil Dust Emissions from Large-scale Construction Sites in Urban Areas 도심 대형사업장의 토양 입자 비산 억제를 위한 Starch와 PVA(polyvinyl alcohol)의 효율성 평가

31 December 2019. pp. 9-15

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Abstract

Soil dust emitted from large scale construction sites in urban areas has posed a significant health threats to local residents by exacerbating air quality. Water-spraying (moistening) is commonly practiced to lower the dust emission in construction sites, but its long term effectiveness is highly questionable. In this study, the utility of starch and PVA (polyvinyl alcohol) was investigated in suppression of the soil dust emissions in construction sites in Seoul areas. The efficiency of the two suppressants was tested with test soil sample in a lab-scale wind tunnel box under different concentrations of suppressants and soil textures. Starch and PVA showed the superior ability to suppress soil dust emission as compared to moistening, resulting in PM10 and PM2.5 lower than the daily limit values of 30 and 15 µg/m3, respectively. PVA showed higher suppression capability than starch for all conditions. The test soils mixed with suppressants also showed dramatically enhanced aggregate stability compared to the non-treated soil.

Keywords

Soil dust

Suppressant

Starch

PVA (polyvinyl alcohol)

Construction

PM₁₀ and PM_2.5

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Information

Publisher :The Korean Society of Soil and Groundwater Environment
Publisher(Ko) :한국지하수토양환경학회
Journal Title :Journal of Soil and Groundwater Environment
Journal Title(Ko) :지하수토양환경
Volume : 24
No :6
Pages :9-15
Received Date : 2019-02-12
Revised Date : 2019-12-03
Accepted Date : 2019-12-13
DOI :https://doi.org/10.7857/JSGE.2019.24.6.009

Journal of Soil and Groundwater Environment ISSN:1598-6438(Print) 2287-8831(Online) 지하수토양환경

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