| 摘要 |
PCT No. PCT/US94/03751 Sec. 371 Date Jul. 18, 1995 Sec. 102(e) Date Jul. 18, 1995 PCT Filed Nov. 9, 1994 PCT Pub. No. WO95/13989 PCT Pub. Date May 26, 1995In the process for the ozone treatment of hot water in the hot water supply system of a building for the purpose of disinfection of the water, the hot water is led into a treatment tank (3). Here the pressure is reduced to a level below that in the pipes of the hot water supply system, an ozone-containing gas being continually introduced into the water, which gas passes through the water in the form of bubbles, the ozone being given up to the water. The remaining gas subsequently undergoes transition to a gaseous state in the upper part of the tank, from which the gas is drawn off. The treated water is then fed into the hot water supply system of the building, the pressure being restored by means of at least one pump to the level of the operating pressure within the hot water supply system. The method can be used to remove harmful micro-organisms such as legionella pneumophila from hot water systems without raising the temperature to around 70 DEG C.
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