Near-surface soil stabilization by enzyme-induced carbonate precipitation for fugitive dust suppression

Jun Young Song; Youngjong Sim; Jaewon Jang; Won Taek Hong; Tae Sup Yun

doi:10.1007/s11440-019-00881-z

Near-surface soil stabilization by enzyme-induced carbonate precipitation for fugitive dust suppression

Jun Young Song, Youngjong Sim, Jaewon Jang, Won Taek Hong, Tae Sup Yun

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

To resolve the environmental and sustainability issues from fugitive dust emission and conventional mitigation methods, multiple experiments were conducted to evaluate the suppression of fugitive dust and its effect on near-surface soil stabilization by enzyme-induced carbonate precipitation (EICP). The optimal recipes for maximum CaCO₃ precipitation with high- and low-purity chemicals were first identified for the EICP treatment. Soil specimens treated with both solutions were characterized by measuring shear wave velocity and cone tip resistance. A wind tunnel test was conducted to examine how the near-surface treatment suppressed particulate matter (PM 2.5 and PM 10) against wind and dynamic impacts. The results showed that both the shear wave velocity and the peak cone tip resistance increased almost linearly with increasing solution volume up to 7 L/m². Dust emission was effectively mitigated by increasing solution volume up to 3 L/m². Both high- and low-purity chemicals showed a similar ability to suppress fugitive dust. Upon vibration, the treatment effect vanished, but treatment with 7 L/m² solution made the soil remain intact. Scanning electron microscopic imaging confirmed the precipitation of vaterite when low-purity chemicals were used.

Original language	English
Pages (from-to)	1967-1980
Number of pages	14
Journal	Acta Geotechnica
Volume	15
Issue number	7
DOIs	https://doi.org/10.1007/s11440-019-00881-z
Publication status	Published - 2020 Jul 1

Bibliographical note

Funding Information:
This work was supported by the Land and Housing Institute (LHI) grant funded by the Korea Land and Housing Corporation, the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2016R1A2B4011292), and the research fund of the Korea Agency for Infrastructure Technology Advancement (KAIA) (19CTAP-C142849-02). Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Funding Information:
This work was supported by the Land and Housing Institute (LHI) grant funded by the Korea Land and Housing Corporation, the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2016R1A2B4011292), and the research fund of the Korea Agency for Infrastructure Technology Advancement (KAIA) (19CTAP-C142849-02).

Publisher Copyright:
© 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

All Science Journal Classification (ASJC) codes

Geotechnical Engineering and Engineering Geology
Earth and Planetary Sciences (miscellaneous)

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10.1007/s11440-019-00881-z

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title = "Near-surface soil stabilization by enzyme-induced carbonate precipitation for fugitive dust suppression",

abstract = "To resolve the environmental and sustainability issues from fugitive dust emission and conventional mitigation methods, multiple experiments were conducted to evaluate the suppression of fugitive dust and its effect on near-surface soil stabilization by enzyme-induced carbonate precipitation (EICP). The optimal recipes for maximum CaCO3 precipitation with high- and low-purity chemicals were first identified for the EICP treatment. Soil specimens treated with both solutions were characterized by measuring shear wave velocity and cone tip resistance. A wind tunnel test was conducted to examine how the near-surface treatment suppressed particulate matter (PM 2.5 and PM 10) against wind and dynamic impacts. The results showed that both the shear wave velocity and the peak cone tip resistance increased almost linearly with increasing solution volume up to 7 L/m2. Dust emission was effectively mitigated by increasing solution volume up to 3 L/m2. Both high- and low-purity chemicals showed a similar ability to suppress fugitive dust. Upon vibration, the treatment effect vanished, but treatment with 7 L/m2 solution made the soil remain intact. Scanning electron microscopic imaging confirmed the precipitation of vaterite when low-purity chemicals were used.",

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N2 - To resolve the environmental and sustainability issues from fugitive dust emission and conventional mitigation methods, multiple experiments were conducted to evaluate the suppression of fugitive dust and its effect on near-surface soil stabilization by enzyme-induced carbonate precipitation (EICP). The optimal recipes for maximum CaCO3 precipitation with high- and low-purity chemicals were first identified for the EICP treatment. Soil specimens treated with both solutions were characterized by measuring shear wave velocity and cone tip resistance. A wind tunnel test was conducted to examine how the near-surface treatment suppressed particulate matter (PM 2.5 and PM 10) against wind and dynamic impacts. The results showed that both the shear wave velocity and the peak cone tip resistance increased almost linearly with increasing solution volume up to 7 L/m2. Dust emission was effectively mitigated by increasing solution volume up to 3 L/m2. Both high- and low-purity chemicals showed a similar ability to suppress fugitive dust. Upon vibration, the treatment effect vanished, but treatment with 7 L/m2 solution made the soil remain intact. Scanning electron microscopic imaging confirmed the precipitation of vaterite when low-purity chemicals were used.

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Near-surface soil stabilization by enzyme-induced carbonate precipitation for fugitive dust suppression

Abstract

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