Process and equipment for purifying waste air

Details Process and equipment for purifying waste air Process and equipment for purifying waste air

B - Operations, Transporting

01

D

362/14, 195/141,

B01D 53/34 (2006.01) B01D 47/14 (2006.01) B01D 53/84 (2006.01) C02F 3/02 (2006.01) C02F 3/04 (2006.01) C02F 3/10 (2006.01)

Patent

CA 1216810

MICROBIOLOGICAL PACKING MATERIAL FOR BIO-SCRUBBER ABSTRACT OF THE DISCLOSURE A method and apparatus are provided for purifying air or other gaseous oxygen-containing effluent having microbiologically decomposable or biodegradable con- taminants therein. The above is accomplished by providing an array or permeable mass of packing material with colonies of microorganisms growing thereon. The packing material and/or the air to be purified is sprayed with water to dissolve out the water soluble impurities in the air in contact there- with and to eliminate the resulting water-dissolved impurities by supplying the same, dissolved in water, as microbiologically decomposable substrate to the microorganisms colonizing or growing on the packing material. The resulting purified air, after passing through the water-wetted biologically active packing material and substantially free of contaminants is suitably disposed of and the water, also after having passed through the packing material and now having a reduced contaminant content or substantially free of contaminant, is collected and all or a portion thereof recycled to dissolve additional water soluble micro- biologically decomposable or biodegradable contaminants from the air or gaseous oxygen containing effluent to be purified.

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