초록 ▼

In 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-cont

In 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.degree. C.

대표청구항 ▼

[ I claim:] [1.] A method for the ozone treatment of hot water, for the purpose of disinfection of the water, of a hot water supply system of a building, which system comprises a feeding pipe which supplies hot water from a heat transfer means to an ozone treatment device, and a distribution system

[ I claim:] [1.] A method for the ozone treatment of hot water, for the purpose of disinfection of the water, of a hot water supply system of a building, which system comprises a feeding pipe which supplies hot water from a heat transfer means to an ozone treatment device, and a distribution system which leads to users, wherein the method comprises the steps of:feeding hot water from the heat transfer means, under a reduction of pressure, into a treatment tank having the ozone treatment device;lowering the pressure in the treatment tank to less than an operating pressure of the hot water supply systems;introducing an ozone-containing gas continuously into the water in the treatment tank, wherein this ozone-containing gas passes through the water in the form of bubbles;dissolving ozone in the water, and the gas undergoing transition into a gas phase in an upper section of the tank;drawing off the gas from the tank; andconducting the treated water, under an increase of pressure to the operating pressure of the hot water supply system, to the distribution system of the building.