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Removal of ammonia from air by fibrous ion exchangers

Wasąg H., Pawłowski L., Soldatov V., Kosandrovich E.

Environment Protection Engineering

2009

Vol. 35, nr 3

293-304

The paper presents the results of laboratory studies of ammonia sorption from air by fibrous ionexchange materials containing acidic groups in concentration of 3-5 mmoles per gram as a function of the ammonia concentration (3-30 ppm), relative air humidity, air flow rate and the thickness of filtering layer. It follows from our experiments that non-woven fabrics with the thickness of above 2 mm and surface density of -0.3 kg m(-2) can efficiently reduce ammonia concentration in air to <1 ppm at flow rates of <0.2 m s-1. The sorbent can be regenerated with acid solution to obtain salts that can be used as mineral fertilizers.