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Performance Evaluation of Hybrid Air Purification System with Vegetation Soil and Electrostatic Precipitator Filters

Author

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  • Aya Elkamhawy

    (Smart City and Construction Engineering, University of Science & Technology (UST), Daejeon 34113, Korea
    Department of Land, Water and Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Gyeonggi-do 10223, Korea)

  • Choon-Man Jang

    (Smart City and Construction Engineering, University of Science & Technology (UST), Daejeon 34113, Korea
    Department of Land, Water and Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Gyeonggi-do 10223, Korea)

Abstract

This paper describes designing, manufacturing, and evaluating an eco-friendly modular-type air purification system to enhance the removal efficiency of fine particulate matter (PM) in urban public spaces, especially in hotspots. This system consists of artificial soil based-vegetation and electrostatic precipitator (ESP) filters. Unlike the so-called passive removal method, which adsorbs fine PM only by the leaves of plants, the vegetation soil filter based on multi-layered different artificial soils adopts an active removal method in which air purification is performed in the soil itself, bypassing external air by using the air circulation fan in the soil. The ESP filter is designed and evaluated to have a high fine PM removal efficiency, even at high suction velocity, to remove large amounts of outdoor fine PM. Throughout the experimental measurements on the hybrid air purification system with vegetation soil and ESP filters, it is observed that the vegetation soil filter has a 78.5% reduction efficiency for PM 2.5 and a 47% for PM 10 at the inlet air velocity of 0.15 m/s. The ESP filter also has a 73.1% reduction efficiency for PM 2.5 and 87.3% for PM 10 at an inlet air velocity of 3 m/s. Based on the performance evaluations of the vegetation soil filter and the ESP filter, it is noted that each individual module will be applied to an air purification tower with vertical expansion and installed in a high concentration area of fine PM in a downtown area to contribute to the fine PM reduction in the community.

Suggested Citation

  • Aya Elkamhawy & Choon-Man Jang, 2020. "Performance Evaluation of Hybrid Air Purification System with Vegetation Soil and Electrostatic Precipitator Filters," Sustainability, MDPI, vol. 12(13), pages 1-16, July.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:13:p:5428-:d:380706
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    References listed on IDEAS

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    1. Ju-Hee Kim & Hyo-Jin Kim & Seung-Hoon Yoo, 2018. "Public Value of Enforcing the PM 2.5 Concentration Reduction Policy in South Korean Urban Areas," Sustainability, MDPI, vol. 10(4), pages 1-14, April.
    2. David Cyranoski, 2018. "China tests giant air cleaner to combat smog," Nature, Nature, vol. 555(7695), pages 152-153, March.
    3. Seung-Hoon Park & Dong-Won Ko, 2018. "Investigating the Effects of the Built Environment on PM 2.5 and PM 10 : A Case Study of Seoul Metropolitan City, South Korea," Sustainability, MDPI, vol. 10(12), pages 1-11, December.
    4. Margareth Viecco & Sergio Vera & Héctor Jorquera & Waldo Bustamante & Jorge Gironás & Cynnamon Dobbs & Eduardo Leiva, 2018. "Potential of Particle Matter Dry Deposition on Green Roofs and Living Walls Vegetation for Mitigating Urban Atmospheric Pollution in Semiarid Climates," Sustainability, MDPI, vol. 10(7), pages 1-18, July.
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    Cited by:

    1. Roberta Orlando & Merve Polat & Alireza Afshari & Matthew S. Johnson & Peter Fojan, 2021. "Electrospun Nanofibre Air Filters for Particles and Gaseous Pollutants," Sustainability, MDPI, vol. 13(12), pages 1-18, June.
    2. Izabela Sówka & Sławomir Pietrowicz & Piotr Kolasiński, 2021. "Energy Processes, Systems and Equipment," Energies, MDPI, vol. 14(6), pages 1-4, March.
    3. Sungwan Son & Aya Elkamhawy & Choon-Man Jang, 2022. "Active Soil Filter System for Indoor Air Purification in School Classrooms," IJERPH, MDPI, vol. 19(23), pages 1-16, November.

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