Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Air treatment with respect to some organic pollutants in outdoor air
AbstractOutdoor air can be polluted by traffic, heating plants and industry. The pollutants can have adverse health effects and unpleasant odours. If polluted air is to be used as supply air in buildings, it needs to be cleaned. Cleaning can be carried out in two ways: (a) with adsorbent filters to remove gaseous pollutants; (b) with fibrous filters to remove particle pollutants.A pollutant in urban air that has received increasing attention is particle-bound polycyclic aromatic hydrocarbons (PAHs). The gases are produced by vehicle engines and condense or crystallise on particles. The particles can then enter the human body via the respiratory tract. Large particles have a large inertia, which means that they are more easily deposited in the bronchi. Because the gases are deposited on particles, they can be removed from the air with fibrous filters.Measurements have been carried out on various classes of adsorbent (gas) filters and fibre (particle) filters. The results show that the efficiency of gas filters depends on the pressure drop across the filter, the initial filter efficiency, and the total adsorption capacity. The collection efficiency for particle-bound PAHs corresponds to that for dust particles around 1 μm in diameter.
Air treatment with respect to some organic pollutants in outdoor air
AbstractOutdoor air can be polluted by traffic, heating plants and industry. The pollutants can have adverse health effects and unpleasant odours. If polluted air is to be used as supply air in buildings, it needs to be cleaned. Cleaning can be carried out in two ways: (a) with adsorbent filters to remove gaseous pollutants; (b) with fibrous filters to remove particle pollutants.A pollutant in urban air that has received increasing attention is particle-bound polycyclic aromatic hydrocarbons (PAHs). The gases are produced by vehicle engines and condense or crystallise on particles. The particles can then enter the human body via the respiratory tract. Large particles have a large inertia, which means that they are more easily deposited in the bronchi. Because the gases are deposited on particles, they can be removed from the air with fibrous filters.Measurements have been carried out on various classes of adsorbent (gas) filters and fibre (particle) filters. The results show that the efficiency of gas filters depends on the pressure drop across the filter, the initial filter efficiency, and the total adsorption capacity. The collection efficiency for particle-bound PAHs corresponds to that for dust particles around 1 μm in diameter.
Air treatment with respect to some organic pollutants in outdoor air
Kjaerboe, Peter (Autor:in) / Burt, Tyrrell (Autor:in)
Building and Environment ; 29 ; 357-362
01.01.1994
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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