Detail publikačního výsledku

Aerosol filtration using hollow-fiber membranes: Effect of permeate velocity and dust amount on separation of submicron TiO2 particles

BULEJKO, P.; SVĚRÁK, T.; DOHNAL, M.; POSPÍŠIL, J.

Originální název

Aerosol filtration using hollow-fiber membranes: Effect of permeate velocity and dust amount on separation of submicron TiO2 particles

Anglický název

Aerosol filtration using hollow-fiber membranes: Effect of permeate velocity and dust amount on separation of submicron TiO2 particles

Druh

Článek WoS

Originální abstrakt

This work aimed to determine filtration performance of polypropylene hollow-fiber membranes in removing submicron particles from air. Experiments were performed in a chamber simulating dust environment with synthetic submicron-size particles (micronized TiO2). A hollow-fiber membrane with 300 fibers of a filtration area of 0.43 m2 was tested. By measuring number of particles in chamber (upstream) and on the suction side of the membrane (downstream), the filtration efficiency was determined. Two different weights of synthetic dust (50 and 100 mg) and two permeate velocities (15 and 30 cm/s) were used to compare their influence on particle collection efficiency. Particle counting was carried out using a TSI 3075 condensation particle counter connected to a TSI 3080 scanning mobility particle sizer in 32 particle size channels from 17 to 600 nm. Pressure drop evolution with intense particle loading was recorded and fouling of the membrane was observed after 25, 50 and 90 hours of filtration using SEM. The results showed high efficiency, mostly higher than 99.9 % with higher pressure drops compared to other materials on HEPA level.

Anglický abstrakt

This work aimed to determine filtration performance of polypropylene hollow-fiber membranes in removing submicron particles from air. Experiments were performed in a chamber simulating dust environment with synthetic submicron-size particles (micronized TiO2). A hollow-fiber membrane with 300 fibers of a filtration area of 0.43 m2 was tested. By measuring number of particles in chamber (upstream) and on the suction side of the membrane (downstream), the filtration efficiency was determined. Two different weights of synthetic dust (50 and 100 mg) and two permeate velocities (15 and 30 cm/s) were used to compare their influence on particle collection efficiency. Particle counting was carried out using a TSI 3075 condensation particle counter connected to a TSI 3080 scanning mobility particle sizer in 32 particle size channels from 17 to 600 nm. Pressure drop evolution with intense particle loading was recorded and fouling of the membrane was observed after 25, 50 and 90 hours of filtration using SEM. The results showed high efficiency, mostly higher than 99.9 % with higher pressure drops compared to other materials on HEPA level.

Klíčová slova

Air filtration; hollow-fiber membrane; filtration efficiency; pressure drop; aerosol

Klíčová slova v angličtině

Air filtration; hollow-fiber membrane; filtration efficiency; pressure drop; aerosol

Autoři

BULEJKO, P.; SVĚRÁK, T.; DOHNAL, M.; POSPÍŠIL, J.

Rok RIV

2019

Vydáno

26.09.2018

Nakladatel

Elsevier

Místo

Švýcarská konfederace

ISSN

0032-5910

Periodikum

POWDER TECHNOLOGY

Svazek

340

Číslo

1

Stát

Švýcarská konfederace

Strany od

344

Strany do

353

Strany počet

10

URL

https://www.sciencedirect.com/science/article/pii/S003259101830768X

BibTex

@article{BUT149963,
  author="Pavel {Bulejko} and Tomáš {Svěrák} and Mirko {Dohnal} and Jiří {Pospíšil}",
  title="Aerosol filtration using hollow-fiber membranes: Effect of permeate velocity and dust amount on separation of submicron TiO2 particles",
  journal="POWDER TECHNOLOGY",
  year="2018",
  volume="340",
  number="1",
  pages="344--353",
  doi="10.1016/j.powtec.2018.09.040",
  issn="0032-5910",
  url="https://www.sciencedirect.com/science/article/pii/S003259101830768X"
}