Air cleaning efficiency of deodorant materials under dynamic conditions: effect of air flow rate

Chiyomi Mizutani, Mariya Petrova Bivolarova, Arsen Krikor Melikov, Zhecho Dimitrov Bolashikov, Tomonori Sakoi, Kanji Kajiwara

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Abstract

Unpleasant odor is a serious problem in hospitals and elderly facilities. One of the unpleasant odors is ammonia originating from human urine and sweat. The air cleaning efficiency of porous activated carbon fiber fabric which has been treated with acid, and porous activated carbon fiber fabric was evaluated as deodorant materials neutralising ammonia in air. The deodorant material efficiency was tested in a special experimental set-up consisting of a straight pipe section, an ammonia gas generator, a fan and a textile frame. The deodorant materials, placed in the pipe, were exposed to a flow of air mixed with ammonia gas at a concentration of 20 ppm and velocities of 0.05, 0.15, 0.3 and 1.2 m/s. The activated carbon fibers treated with acid had a high deodorizing effect for ammonia (0.8) at a velocity of 0.05 m/s. The deodorizing effect of this material decreased with the increase in the velocity. The porous activated carbon fiber fabric did not have a deodorant effect.
Original languageEnglish
Title of host publicationProceedings of Indoor Air 2014
PublisherInternational Society of Indoor Air Quality and Climate
Publication date2014
Pages745-749
Publication statusPublished - 2014
Event13th International Conference on Indoor Air Quality and Climate - University of Hong Kong, Hong Kong, Hong Kong
Duration: 7 Jul 201412 Jul 2014
Conference number: 13
http://www.indoorair2014.org/

Conference

Conference13th International Conference on Indoor Air Quality and Climate
Number13
LocationUniversity of Hong Kong
CountryHong Kong
CityHong Kong
Period07/07/201412/07/2014
Internet address

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