Water-circulating sterilizer for killing legionella in hot springs, pools, bathtubs and cooling towers

摘要

The object of the invention is to provide a water-circulating sterilizer that uses no chlorine-base bactericidal agents, has no effect on the human body with no change of water quality, with no running cost and completely free frommaintenance while effectivesterilizationis possible within shorter time.;The invention provides a water-circulating sterilizer disposed in a pipeline of circulating water for sterilizing Legionella pneumophila surviving in circulating water, wherein plural sets of a first, second and third alloy plates are sequentially disposed from a water inflow port, the first alloy plate comprises an alloy containing at least copper and tin, the second alloy plate comprises an alloy containing at least silicon and titanium, and the third alloy plate comprises an alloy containing at least iron, molybdenum and manganese.