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Active Soil Filter System for Indoor Air Purification in School Classrooms

Author

Listed:
  • Sungwan Son

    (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea)

  • Aya Elkamhawy

    (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea
    Smart City and Construction Engineering, University of Science & Technology (UST), Daejeon 34113, Republic of Korea)

  • Choon-Man Jang

    (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea
    Smart City and Construction Engineering, University of Science & Technology (UST), Daejeon 34113, Republic of Korea)

Abstract

An active soil filter system was newly designed and evaluated to obtain a higher removal efficiency of fine particulate matter (PM) for indoor air purification in schools. Unlike passive air purification systems that remove PM using only plant leaves, air purification can be maximized by filtering polluted indoor air directly between the soil particles supporting the plant. The novel system is composed of a composite soil layer and a suction blower that forces outside air into the soil layer. It was found that the air purification performance was improved as the inflow air velocity upstream of the soil is decreased and the soil stacking height increased. The lower the soil moisture, the better the air purification performance. Considering both the classroom environment and the system’s energy consumption, it is recommended that the soil stacking height is 150 mm, the soil inflow air velocity is 2 cm/s, and the relative humidity is 35%. Under these conditions, the air purification efficiency for PM 2.5 is 41.5%. The indoor air purification system using the soil filter system, along with the currently used plant leaves medium, is expected to improve the indoor air quality in public facilities, such as school classrooms.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:23:p:15666-:d:983709
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    References listed on IDEAS

    as
    1. Yaolin Lin & Jiale Zou & Wei Yang & Chun-Qing Li, 2018. "A Review of Recent Advances in Research on PM 2.5 in China," IJERPH, MDPI, vol. 15(3), pages 1-29, March.
    2. Piotr Lis & Anna Lis, 2021. "The Required Amount of Ventilation Air for the Classroom and the Possibility of Air Infiltration through the Windows," Energies, MDPI, vol. 14(22), pages 1-22, November.
    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.
    5. Sultan Ayoub Meo & Faris Jamal Almutairi & Abdulelah Adnan Abukhalaf & Adnan Mahmood Usmani, 2021. "Effect of Green Space Environment on Air Pollutants PM2.5, PM10, CO, O 3 , and Incidence and Mortality of SARS-CoV-2 in Highly Green and Less-Green Countries," IJERPH, MDPI, vol. 18(24), pages 1-11, December.
    6. Sungwan Son & Choon-Man Jang, 2021. "Air Ventilation Performance of School Classrooms with Respect to the Installation Positions of Return Duct," Sustainability, MDPI, vol. 13(11), pages 1-14, May.
    7. 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.
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