Detail publikace

Experimental and modeling study on fouling of hollow-fiber membranes by fine dust aerosol particles

BULEJKO, P. KRIŠTOF, O. SVĚRÁK, T.

Originální název

Experimental and modeling study on fouling of hollow-fiber membranes by fine dust aerosol particles

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This work aimed to study the pressure drop evolution of hollow-fiber membranes (HFMs) during aerosol loading. We tested two types of polypropylene HFMs varying in inner fiber diameter with an ASHRAE A2 test dust. Data was recorded including pressure drop, flowrate/permeate velocity and accumulated mass of particles until reaching the final pressure drop. The results showed a slow pressure drop increase even when loaded with extremely high (units of g/m3) dust concentrations. The membranes were easily cleanable simply by shaking, with a minimal residual pressure drop. The particle loading profile (pressure drop/dust load curve) was dependent on the inner diameter of hollow fibers and permeate velocity. The loading profile of a new HFM was independent of dust concentration. However, when a regenerated membrane was used, the dependence on the dust concentration was obvious. The same was true for the fouling rate, which was higher for the regenerated membrane. Theoretical and empirical models for dust cake pressure drop were in a strong disagreement with experiment data. In practical applications, they will be rather limited to a very specific low volume, or short-term high volume filtrations due to the higher pressure drops caused by the hollow-fiber geometry.

Klíčová slova

Hollow-fiber membrane; Aerosol filtration; Pressure drop; Dust cake; Modeling

Autoři

BULEJKO, P.; KRIŠTOF, O.; SVĚRÁK, T.

Vydáno

12. 8. 2020

Nakladatel

Elsevier

ISSN

0376-7388

Periodikum

JOURNAL OF MEMBRANE SCIENCE

Ročník

616

Číslo

118562

Stát

Nizozemsko

Strany od

1

Strany do

10

Strany počet

10

URL

https://www.sciencedirect.com/science/article/pii/S037673882031139X

BibTex

@article{BUT164690,
  author="Pavel {Bulejko} and Ondřej {Krištof} and Tomáš {Svěrák}",
  title="Experimental and modeling study on fouling of hollow-fiber membranes by fine dust aerosol particles",
  journal="JOURNAL OF MEMBRANE SCIENCE",
  year="2020",
  volume="616",
  number="118562",
  pages="1--10",
  doi="10.1016/j.memsci.2020.118562",
  issn="0376-7388",
  url="https://www.sciencedirect.com/science/article/pii/S037673882031139X"
}