Evaluation of foam-glass media in a high-rate filtration process for the removal of particulate matter containing phosphorus in municipal wastewater
- Authors
- Jeong, Tae-Un; Chu, Kyoung Hoon; Kim, Sung-Jo; Lee, Jieun; Chae, Kyu-Jung; Hwang, Moon-Hyun
- Issue Date
- 1-6월-2019
- Publisher
- ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
- Keywords
- Foam-glass media; High-rate filtration; Suspended solid; Total phosphorous; Municipal wastewater treatment
- Citation
- JOURNAL OF ENVIRONMENTAL MANAGEMENT, v.239, pp.159 - 166
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ENVIRONMENTAL MANAGEMENT
- Volume
- 239
- Start Page
- 159
- End Page
- 166
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/64818
- DOI
- 10.1016/j.jenvman.2019.03.064
- ISSN
- 0301-4797
- Abstract
- Foam-glass as an effective filter media in a high-rate filtration process was evaluated for the removal of particulate matter containing phosphorus in municipal wastewater. The foam-glass with a low sphericity exhibited a higher porosity (60.2%) and a lower apparent specific gravity (0.50 g/cm(3)) compared with a conventional sand media (35.1% and 1.19 g/cm(3)). In particular, the high porosity of the foam-glass increased its surface area for capturing particles with coagulation, leading to a significantly decreasing head loss in the filtration bed column, resulting in a significantly longer filtration duration (more than 2 times) and a slightly higher removal of contaminants (approximately 4.8% for a suspended solid and 2% for the total phosphorus). Additionally, while backwashing of the conventional sand media required about 30% of the bed volume, the low specific gravity of the foam-glass media could be expanded to 100% of the volume due to its lower energy demand. Based on these advantages, it is expected that the foam-glass media will have a vital role as an alternative media in high-rate filtration processes.
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Collections - Executive Vice President for Research > Institute of Convergence Science > 1. Journal Articles
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