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BULEJKO, P. KRIŠTOF, O. SVĚRÁK, T.
Original Title
Experimental and modeling study on fouling of hollow-fiber membranes by fine dust aerosol particles
Type
journal article in Web of Science
Language
English
Original Abstract
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.
Keywords
Hollow-fiber membrane; Aerosol filtration; Pressure drop; Dust cake; Modeling
Authors
BULEJKO, P.; KRIŠTOF, O.; SVĚRÁK, T.
Released
12. 8. 2020
Publisher
Elsevier
ISBN
0376-7388
Periodical
JOURNAL OF MEMBRANE SCIENCE
Year of study
616
Number
118562
State
Kingdom of the Netherlands
Pages from
1
Pages to
10
Pages count
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" }