METHOD AND APPARATUS FOR TREATING BIOLOGICALLY CONTAMINATED AIR

摘要

A method for reducing biological contamination of indoor air for providing a concentrated salt solution, which is either (i) a brine capable of responding to aeration thereof by a rapid increase of its Redox potential, wherein the rate of said increase is greater than the rate of increase observed for a 45% (w/w) calcium chloride solution subjected to identical aeration conditions; or (ii) a brine which is passed through an electrolytic cell (30) in order to raise its Redox potential; circualting said concentrated salt solution through a treatment zone (17); causing a stream of biologically contaminated air (15) to flow through said treatment zone (17), such that said contaminated air (15) is contacted with said salt solution in said treatment zone (17); and withdrawing purified air (14) from said treatment zone (17).