Enhancing Value of Natural Waste by Converting It into Air-Filtration Media
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Abstract
This study investigates the properties and optimal conditions of air filter sheets and evaluates the air filtration efficiency of filter media produced from waste pineapple and bamboo leaves. The air filter sheets are fabricated from natural agricultural waste materials, specifically pineapple leaf fibres and bamboo fibres. Fabrication involved fibre quantities of 100, 200, and 300 grams combined with binder concentrations ranging from 5% to 20% by weight. The physical properties of the air filter sheets demonstrated favourable surface characteristics, including smooth texture, uniform colouration, and structurally intact fibres without evidence of tearing. Morphological analysis showed that the fibres were longitudinally aligned, densely packed, and mechanically robust. Comparative physical assessments indicated that pineapple leaf fibre exhibited lower water absorption and moisture retention than bamboo fibre, contributing to a higher dust removal efficiency of up to 70%, compared to 50% for bamboo-based filters. Despite these advantages, long-term use revealed challenges, including increased moisture accumulation and increased susceptibility to microbial growth. These findings suggest that pineapple leaf fibre is a promising biodegradable material for air filtration applications; however, further optimisation is necessary to enhance moisture resistance and incorporate antimicrobial functionality for sustained performance.
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References
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