Phosphorus removal from wastewater by ionic exchange using a surface-modified Al alloy filter
- Authors
- Seo, Young Ik; Hong, Ki Ho; Kim, Se Hoon; Chang, Duk; Lee, Kyu Hwan; Kim, Young Do
- Issue Date
- May-2013
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Mesoporous film; Aluminum hydroxide; Alkali surface modification; Phosphorus removal; Ionic exchange
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.19, no.3, pp.744 - 747
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 19
- Number
- 3
- Start Page
- 744
- End Page
- 747
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/162920
- DOI
- 10.1016/j.jiec.2012.11.008
- ISSN
- 1226-086X
- Abstract
- In this study, a cost-effective and eco-friendly route for removal of phosphate in wastewater was demonstrated using an Al alloy foam filter with a mesoporous aluminum hydroxide (Al(OH3) film. The mesoporous Al(OH)(3) film on which the ion exchange and adsorption of phosphate occur was generated using a simple alkali surface modification process. For higher phosphate removal by the surface-modified Al alloy foam filter, the number of filters was increased up to 20, which achieved 90% phosphate removal within a very short contact time. As a recycling process, a second alkali surface modification was applied to the used filter after phosphate adsorption. It clearly indicated that the used filter can be recycled via a second alkali surface modification due to the ion exchange mechanism. It was shown that an alkali surface-modified Al alloy foam filter is a powerful candidate for phosphate removal in water treatment facilities.
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