Particle and Aerosol Research
Vol. 12, No. 3, September 2016, Pages 51-56
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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A study on nanoparticle filtration characteristics of multilayer meltblown depth filters
Kang-San Leea,b, Naim Hasollia, Seong-Min Jeona, Jae-Rang Leea,c, Kwang-Deuk Kima, Young-Ok Parka*, and Jungho Hwangb**
aClimate Change Research Division, Korea Institute of Energy Research, Daejeon, Korea
bDepartment of Mechanical Engineering, Yonsei University, Seoul, Korea
c Department of Chemical & Biological Engineering, Korea University, Seoul, Korea
*Corresponding author.
Tel.: *+82-42-860-3625, **+82-2-2123-2821, E-mail: *yopark@kier.re.kr, **hwangjh@yonsei.ac.kr
Received 08 June 2016, Revised 21 September 2016, Accepted 24 September 2016, Available online 06 October 2016
http://dx.doi.org/10.11629/jpaar.2016.9.30.051
Abstracts
Due to recent development in nanotechnology and increasing usage and production of nanomaterials, numerous studies related to environment, sanitation and safety handling of nanoparticle are being conducted. Since nanoparticles can be easily absorbed into human bodies through breathing process, based on their toxic substances and their large specific surface, these particles can cause serious health damage. Therefore, to reduce nanoparticle emissions, nanofiltration technology is becoming a serious issue. Filtration is a separation process during which a fluid passes through a barrier by removing the particles from the stream. Barrier filters can be made of various materials and shapes. One of the most common type of barrier filter is the fibrous filter. Fibrous filters are divided in two types: nonwoven and woven fabrics. Polypropylene is a thermoplastic material, used as a base material for melt blown nonwoven fabric. In this study, we examined filtration property of KCl nanoparticles with a mean particle diameter of 75 nm using multilayer meltblown filter samples. These experiments verify that the penetration of nanoparticle in the filter correlate with pressure drop; the meltblown layer MB1 has the greatest effect on dust collection efficiency of the filter. Among all tested samples, dust collection efficiency of 2-layer filter was best. However, when considering the overall pressure drop and dust collection efficiency, the 4-layer filter has the highest quality factor for particles smaller than 70 nm.
Keywords
Meltblown depth filter, nanoparticle, filtration, penetration, quality factor
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