Residue-free alkali-treated aluminum foil for water disinfection: A novel supernatant Mg(OH)2 fabrication method
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Abstract
This study presents a novel approach to fabricate alkali-treated aluminum (ATA) foil for point-of-use (POU) water disinfection, addressing the residue issue associated with conventional production methods. Traditional ATA foil production leaves a residual layer that hinders practicality in use. To cope with it, a supernatant Mg(OH)2 solution was employed, resulting in residue-free ATA foil. Two variants, conventional ATA foil (ATA foil-1) and supernatant-treated ATA foil (ATA foil-2), were fabricated and analyzed. Surface characterization revealed that ATA foil-2 had a smoother surface with fewer cracks while maintaining E. coli removal efficiency and methyl orange adsorption capacity similar as ATA foil-1. Maximum E. coli adsorption capacities were found at 572,967 CFU/cm2 for ATA foil-1 and 561,513 CFU/cm2 for ATA foil-2. Both foils achieved over 84% methyl orange removal, indicating adsorption as the primary removal mechanism. The findings demonstrated that the supernatant Mg(OH)2 method successfully produced residue-free ATA foil with comparable disinfection performance, thus eliminating the need for a washing step and enhancing its suitability for point-of-use water treatment applications.
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References
N. Chaukura, W. Moyo, T. A. Kajau, A. A. Muleja, B. B. Mamba, and T. T. Nkambule, Low-cost ceramic filtration for point-of-use water treatment in low-income countries, Water Secur. 20 (2023) 100145.
T. Ihsan, and V. Derosya, Drinking water problems in rural areas: Review of point-of-use methods to improve water quality and public health, Larhyss J. 58 (2024) 55–71.
C. K. Pooi, and H. Y. Ng, Review of low-cost point-of-use water treatment systems for developing communities, npj Clean Water. 1 1 (2018) 1-8.
H. Yang, S. Xu, D. E. Chitwood, and Y. Wang, Ceramic water filter for point-of-use water treatment in developing countries: Principles, challenges and opportunities Front. Environ. Sci. Eng. 14 (2020) 79.
J. Wu, M. Cao, D. Tong, Z. Finkelsen, and E. M. V. Hoek, A critical review of point-of-use drinking water treatment in the United States, npj Clean Water. 4 (2021) 40.
E. Ojomo, M. Elliott, L. Goodyear, M. Forson, and J. Bartram, Sustainability and scale-up of household water treatment and safe storage practices: Enablers and barriers to effective implementation, Int. J. Hyg. Environ. Health. 218 8 (2015) 704-13.
WaterAid, 2017. Why walk miles for dirty water? WaterAid - water charity. https://www.wateraid.org/uk/why-walk-for-water.
B. J. M. Chaúque, A. D. Bennetti, and M. B. Rott, Epidemiological and immunological gains from solar water disinfection: Fact or wishful thinking? Trop. Med. Int. Health. 27 (2022) 873–880.
Y. Deng, Making waves: Principles for the design of sustainable household water treatment, Water Res. 198 (2021) 117151.
I. Jeon, E. C. Ryberg, P. J. Alvarez, and J. Kim, Technology assessment of solar disinfection for drinking water treatment, Nat. Sustain. 5 9 (2022) 801-8.
T. Ihsan, E. Johan, S. Fukugaichi, M. Maruyama, S. Mitsunobu, and N. Matsue, Innovative DIY drinking water disinfection for underserved communities, Sci. Total Environ. 927 (2024) 172257.
N. Saadi, K. Alotaibi, L. Hassan, Q. Smith, F. Watanabe, A. A. Khan, and T. Karabacak, Enhancing the antibacterial efficacy of aluminum foil by nanostructuring its surface using hot water treatment, Nanotechnology 32 (2021) 325103.
E. Johan, T. Ihsan, S. Fukugaichi, and N. Matsue, Aluminum foil immersed in alkalized seawater removes Escherichia coli from drinking water, J. Water Sanit. Hyg. Dev. 13 9 (2023) 681–6.
T. Ihsan, E. Johan, S. Fukugaichi, and N. Matsue, Enhancing rural drinking water safety using Mg-Al-type layered double hydroxide foil as a new point-of-use disinfection tool, J. Water Sanit. Hyg. Dev. 13 11 (2023) 921–30.
Q. Hu, R. Lan, L. He, H. Liu, and X. Pei, A critical review of adsorption isotherm models for aqueous contaminants: Curve characteristics, site energy distribution and common controversies, J. Environ. Manage. 329 (2023) 117104.
M. Mozaffari-Majd, V. Kordzadeh-Kermani, V. Ghalandari, A. Askari, and M. Sillanpää, Adsorption isotherm models: A comprehensive and systematic review (2010?2020), Sci. Total Environ. 812 (2022) 151334
A. D. N’diaye, M. S. A. Kankou, B. Hammouti, A. B. D. Nandiyanto, and D. F. Al Husaeni, A review of biomaterial as an adsorbent: From the bibliometric literature review, the definition of dyes and adsorbent, the adsorption phenomena and isotherm models, factors affecting the adsorption process, to the use of typha species waste as adsorbent, Commun. Sci. Technol. 7 (2022) 140-153.
X. Pan, et al., Investigation of Antibacterial Activity and Related Mechanism of a Series of Nano-Mg(OH)2, ACS Appl. Mater. Interfaces, 5 3 (2013) 1137–42.
X. Wang, Y. Hao, H. Zhao, Y. Guo, and Q. Pan, 2D-layered Mg(OH)2 material adsorbing cellobiose via interfacial chemical coupling and its applications in handling toxic Cd2+ and UO22+ ions, Chemosphere 279 (2021) 130617.