Science Target Conference Systems, Ajman 4th International Environment Conference 2016

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Biological Purifier for Indoor Spaces as a Green Innovation
Mohammadreza Davari, Siavash Aghakhani, Fatemeh Mohammadi, Mohammad Rabiei

Last modified: 2015-11-17

Abstract


Nowadays, city dwellers spend 90% of their life in indoors. On the other hand, indoor air pollution is 2 to 5 times more than open space air. Considering the increasing rate of respiratory and allergic diseases caused by air pollutants, using room air purifiers seems to be necessary. Most of the available devices in the marketplace are fully electro-mechanical which need regular maintenance and filter replacement and sometimes the owners are likely to incur many additional costs adding that most of them cannot control biological pollutants. In existing room air purifiers a fully natural and biological system is used (phytoremediation + bioremediation, i.e. root symbionts and free living microorganisms) that does not need frequent filter replacement and consumes very low electricity. What is more, it is fed and watered automatically in a totally natural method through aeroponic (growing plant roots and rhizosphere in a mist environment). To feed the plant, a bio aqua medium is provided. That is, in a water medium, fish are breeding and by providing an appropriate environment, beneficial aquatic microorganisms (Azospirillum, Enterobacter, etc.) are bred to feed the plant. Growth medium around the plant root has to be porous so that air can easily pass through it. In the currently invented device, added to the main plant, some rootles aerial plants (Spanish Moss) are used to for further efficiency. In order to be able to completely control contaminants in highly polluted environments, three long lasting nano-layers are embedded.