Removal of carbon dioxide in indoor environment with sorption-type air filters

摘要

Carbon dioxide from indoor environment is one of the air pollutants under the control of the Indoor Air Quality Ordinance in Taiwan. It is necessary for the people and air conditioning business to take appropriate measures to minimize the emission and prevent causing any objectionable indoor air quality (IAQ) noticeable at any sensitive receptor in the building or creating other form pollution. This study provides the performance of sorption-type air filter to help the people and air conditioning business to understand and apply the best practical control in preventing the emission from causing IAQ problems. The adsorption of CO_2 on a sorption-type filter with activated carbon before and after impregnating treatment has been investigated. It has been found that impregnating treatment with MgO and CaO can promote the adsorption of CO_2 on a sorption-type filter. MgO is a better impregnating agent than CaO.