title: Investigation into the aerodynamic processes of air treatment using a plate-type biofilter.
abstract: The research conducted has involved a laboratory stand of a plate-type air treatment biofilter with a capillary system for humidifying packing material composed of polymer plates vertically arranged next to each other and producing a capillary effect of humidification. The pattern of arranging the plates has sufficiently large spaces (6 mm), and therefore the use of the plate-type structure decreases the aerodynamic resistance of the device. Slightly pressed slabs attached on both sides of the plates are made of heat-treated wood fibre, to increase the longevity of which, wood waste has been heat-treated in the steam explosion reactor under the pressure of 32 bars and a temperature of 235 °C. This is the method for changing the molecular structure of wood, which stops the decay of wood fibre in a humid environment and thus increases the life span of biofilter plates. The research performed has disclosed that, under the application of the above introduced structure of the biofilter, the aerodynamic resistance of the biofilter reaches 1 ÷ 5 Pa when the rate of the air flow passing through the device makes 0.08 m/s. For evaluating the reliability of the obtained results, the theoretical model has been applied.
authors.affiliation: a Department of Environment Protection , Vilnius Gediminas Technical University , Saulėtekio al. 11, LT-10223 , Vilnius-40 , Lithuania.
authors.forename: Pranas
authors.initials: P
authors.lastname: Baltrėnas
authors.affiliation: a Department of Environment Protection , Vilnius Gediminas Technical University , Saulėtekio al. 11, LT-10223 , Vilnius-40 , Lithuania.
authors.forename: Jonas
authors.initials: J
authors.lastname: Kleiza
authors.affiliation: a Department of Environment Protection , Vilnius Gediminas Technical University , Saulėtekio al. 11, LT-10223 , Vilnius-40 , Lithuania.
authors.forename: Raimondas Leopoldas
authors.initials: RL
authors.lastname: Idzelis
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000517:prevention & control*; D000399:Air Pressure; D004784:Environmental Monitoring / Q000295:instrumentation*; D005374:Filtration / Q000295:instrumentation / Q000379:methods*
chemical_list: D000393:Air Pollutants
keywords: Biofilter; biodegradation; capillarity; pollutant gases; wood fibre