Air filtration using polypropylene hollow-fibre membranes for removal of submicron particles

P. Bulejko*, O. Krištof, T. Svěrák, P. Kejík, J. Pospíšil, Brno University of Technology; M. Dohnal, ZENA Membranes s.r.o, Czech Republic

This work aimed to determine filtration performance of polypropylene hollow-fibre membranes (HFMs) for removing submicron particles from air.

Experiments were performed in a glass chamber supplied with aerosol of submicrometer-size particles. Two types of HFMs varying in packing density, active filtration area and pore-size distribution were tested in outside-in configuration in suction mode. By measuring the number of particles upstream and downstream of the HFM, the filtration efficiency was determined. Three air flow velocities (5, 10 and 15 cm/s) were used to compare the velocity effect on filtration efficiency. Particle counting was carried out using a TSI 3075 condensation particle counter connected to a TSI 3080 scanning mobility particle sizer in 64 particle size channels from 16.8 to 572.5 nm. The results show...

Session: G7 - Filter Loading
Day: 14 March 2018
Time: 10:45 - 12:00 h

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