캐비테이션 기반의 세척 이젝터를 이용한 토양 내 오염물질 제거 영향인자 연구
A Study of factors affecting removal of contaminants in soil using cavitation-based washing ejector
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The purpose of this study is to identify the influencing factors of heavy metal contaminated soil using cavitation-based washing ejectors. When the inlet pressure of the Venturi nozzle is below 3 MPa, the cavitation number is affected at below 1. The size of the cavitation bubbles ranged from 0.49 mm to 0.87 mm. The cavitation bubble’s size increased with an increase of Venturi nozzle's diameter and inlet pressure. As the bubble size increased, the bubble surface area flux increased from 131.45 cm2/s/cm2 to 309.01 cm2/s/cm2. The fluid in the washing ejector showed turbulent flow as the Reynolds number increased. The critical factor affecting the removal of heavy metals was identified as the inlet pressure of the Venturi nozzle in operating conditions.
Abstract
The purpose of this study is to identify the influencing factors of heavy metal contaminated soil using cavitation-based washing ejectors. When the inlet pressure of the Venturi nozzle is below 3 MPa, the cavitation number is affected at below 1. The size of the cavitation bubbles ranged from 0.49 mm to 0.87 mm. The cavitation bubble’s size increased with an increase of Venturi nozzle's diameter and inlet pressure. As the bubble size increased, the bubble surface area flux increased from 131.45 cm2/s/cm2 to 309.01 cm2/s/cm2. The fluid in the washing ejector showed turbulent flow as the Reynolds number increased. The critical factor affecting the removal of heavy metals was identified as the inlet pressure of the Venturi nozzle in operating conditions.
참고문헌 (15)
- Selvi, A., , Frontiers in Environmental Science, 7, pp.66~ (2019)
- Gong, C., , Journal of Geochemical Exploration, 139, pp.109~114 (2014)
- Song, B., , Environment international, 105, pp.43~55 (2017)
- Boente, C., , Journal of cleaner production, 142, pp.2693~2699 (2017)
- Liao, X., , Journal of Environmental Sciences, 41, pp.202~210 (2016)
- Dermont, G., , Journal of hazardous materials, 152, pp.1~31 (2008)
- Hu, W., , Chemosphere, 282, pp.131092~ (2021)
- Wang, Y., , Ecotoxicology and environmental safety, 192, pp.110294~ (2020)
- Bandala, E. R., , Air, Soil and Water Research, 12 (2019)
- Asaithambi, N., , Journal of Food Process Engineering, 42, pp.e13144~ (2019)
- Cho, K. H., , Sustainability, 14(1), pp.252~ (2022)
- Kim, H. S., , Int. J. Environ. Res. Public Health, 19(2), pp.786~ (2022)
- Plesset, M. S., , Journal of Applied Mechanics, 71, pp.277~282 (1949)
- Rajoriya, S., , Ultrasonics sonochemistry, 37, pp.192~202 (2017)
- Leiva, J., , Minerals Engineering, 23, pp.888~894 (2010)