Comprehensive Analysis of Indoor Formaldehyde Removal Techniques: Exploring Physical, Chemical, and Biological Methods
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Indoor air quality
Formaldehyde removal
Photocatalytic oxidation
Activated carbon
Biological purification



Submitted : 2023-12-24
Accepted : 2024-01-08
Published : 2024-01-23


This research focuses on the evaluation of diverse approaches for removing formaldehyde from indoor environments, which is a significant concern for indoor air quality. The study systematically examines physical, chemical, and biological methods to ascertain their effectiveness in formaldehyde mitigation. Physical methods, including air circulation and adsorption, particularly with activated carbon and molecular sieves, are assessed for their efficiency in various concentration scenarios. Chemical methods, such as photocatalytic oxidation using titanium dioxide and plasma technology, are analyzed for their ability to decompose formaldehyde into non-toxic substances. Additionally, biological methods involving plant purification and microbial transformation are explored for their eco-friendly and sustainable removal capabilities. The paper concludes that while each method has its merits, a combined approach may offer the most effective solution for reducing indoor formaldehyde levels. The study underscores the need for further research to integrate these methods in a practical, cost-effective, and environmentally sustainable manner, highlighting their potential to improve indoor air quality significantly.


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