Pressure drop evolution during dust loading of hollow-fiber membranes

P. Bulejko*, O. Krištof, T. Svěrák, Brno University of Technology; J. Ondráček, Academy of Sciences of the Czech Republic; M. Dohnal, Zena Membranes s.r.o., Czech Republic

This work focuses on the pressure drop evolution of HFMs during particle loading. We tested two types of polypropylene HFMs varying in inner fiber diameter with three different types of dust/aerosol. We used an ASHRAE A2 test dust, a submicron TiO2 powder dispersed using pressure air, and an ammonium sulfate aerosol generated from a solution to simulate a particle laden environment. Data was recorded including pressure drop, permeate velocity, accumulated mass of particles and fan power input until reaching the final pressure drop. After each experiment, the dust cake was weighed, thus obtaining dust-holding capacity. Theoretical models for dust cake pressure drop and energy consumption were compared with the experiment results. The results showed...

Session: G6 - Surface Filtration II
Day: 23 October 2019
Time: 10:45 - 12:00 h

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