DE102007042685A1 - Method for treating water in water circuits of swimming pools in basin area during cleaning of filters or sanitation of shower systems, comprises displacing microbial loaded water with hydrogen peroxide in predetermined concentration - Google Patents

Abstract

The method for treating water in water circuits of swimming pools in the area of basin during cleaning of filters or sanitation of shower systems, comprises displacing microbial loaded water after terminating a filter stage with hydrogen peroxide in a predetermined concentration, supplying the mixture to a catalyst arrangement, and treating the water with chlorine, sodium hypochlorite, chlorine dioxide and/or other chlorine disinfectants or hydrogen peroxide and/or with UV-radiation. The treated water is introduced into the basin area and the hydrogen peroxide is added to the loaded water. The method for treating water in water circuits of swimming pools in the area of basin during cleaning of filters or sanitation of shower systems, comprises displacing microbial loaded water after terminating a filter stage with hydrogen peroxide in a predetermined concentration, supplying the mixture to a catalyst arrangement, and treating the water with chlorine, sodium hypochlorite, chlorine dioxide and/or other chlorine disinfectants or hydrogen peroxide and/or with UV-radiation. The treated water is introduced into the basin area. The hydrogen peroxide is added to the loaded water in a quantity such that the concentration is 1 mg/l. A precious metal-free, corrosion resistant, all metal catalyst is used as catalyst arrangement.

Description

The Invention relates to a method for treating water in water circuits, Basins and pipes in swimming pools, especially in Pelvic area, when cleaning filters and during renovation of shower systems.

It is known water in water circuits of swimming pools with chlorine and / or chlorine dioxide so that it is in water Germs are eliminated. Biofilms, the shelters of Germination is not adequately influenced by this approach. Biological growth, especially in filters and / or stubs To shower, is the consequence, combined with serious hygienic and health hazards.

Of the Use of chlorine and / or chlorine dioxide causes the formation of odorous Substances, which affects the bathing pleasure.

Of the Use of hydrogen peroxide, which releases only oxygen is, even in conjunction with UV radiation - on Reason for low oxidation effect not for elimination of free Germs in the pool and / or other aqueous systems suitable.

A Combination of both methods does not produce synergistic effects but leads to inefficiency, because both oxidants react with each other.

Farther is known, hydrogen peroxide in combination with full metal catalysts for the elimination of germs on the catalyst surface and to use for biofilm detachment.

The Elimination of free germs in the pool is by this procedure not to be expected in the required speed.

Of the DE 101 54 665 A1 A process for the degradation of biological and / or organic substances in the liquid phase, in particular for the sterilization of liquids, can be taken by bringing the sterilization agent used for the disinfection in operative connection with a carbonaceous material having a graphite structure. The oxidizing agents used are peroxo compounds, such as hydrogen peroxide, ozone, oxygen or nitrogen monoxide.

Of the Invention has for its object to provide a method which is capable of circulating water in swimming pools, especially in the pelvic area, in the cleaning of filters and in the renovation of shower systems, both free germs as well To eliminate biofilms quickly and sustainably.

The The object is achieved according to the invention by that a method of treating water in water cycles of swimming pools, especially in the pelvic area, at the Cleaning of filters or in the renovation of shower systems, by microbially charged water after leaving a filter stage is added with predetermined concentration of hydrogen peroxide, the mixture then through a catalyst arrangement flows, then the water with chlorine and / or sodium hypochlorite and / or chlorine dioxide and / or other chlorine-containing disinfectants or hydrogen peroxide and / or is treated with UV radiation, and the water so treated either in the pelvic area and / or introduced into the inlet to the filter and / or flushing used by water pipes and / or shower systems.

advantageous Further developments of the method according to the invention are to be taken from the subclaims.

In In all cases, make sure that the for Bathing and drinking water valid maximum concentrations of disinfectants not be exceeded. In the renovation, z. B. from Piping systems, can with the applicable higher Concentrations are worked when the pipe section to be rehabilitated is disconnected from the rest of the network.

The invention is explained in more detail by the following examples:
In the derivation of the filter stage of a 500 m ³ -Schwimmbeckens was filled with Vollmetallkatalysatorgestick filled 20 l cartridge. Immediately prior to this, hydrogen peroxide (WPO) in the form of a 35% aqueous solution approved for food production was added in such a way that its concentration was reduced the catalyst was at most 1 mg / l. After that, a sodium hypochlorite solution was metered in so that the concentration of free chlorine was at most 0.3 mg / l.

to microbiological control were carried out locally before the hydrogen peroxide metering point and after the sodium hypochlorite addition after 1, 5 and 10 days of operation the total colony numbers determined. Furthermore, was in the basin a PE plate has been introduced. On it you can Fix microorganisms well and form a biofilm. The control took place organoleptically after 10 days, d. H. by touching, and gravimetric, d. H. by scraping the coating and then Weighing.

As a counter-experiment, the system was operated without the addition of hydrogen peroxide, ie only with conventional chlorination. The results are summarized in Table 1. Table 1 Total colony count in CFU / ml Assessment of biofilm formation before hydrogen peroxide metering point (1/5/10 d) after hypochlorite dosing point (1/5/10 d) organoleptically gravimetry against trying 106/187/423 0/0/1 Surface slimy 238 mg According to the invention 109/117/156 0/0/0 Smooth surface nn

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10154665 A1 [0008]

Claims (3)

Process for the treatment of water in water cycles of swimming pools, especially in the pelvic area, at the Cleaning of filters or in the renovation of shower systems, by microbially charged water after leaving a filter stage is added with predetermined concentration of hydrogen peroxide, the mixture then through a catalyst arrangement flows, then the water with chlorine and / or sodium hypochlorite and / or chlorine dioxide and / or other chlorine-containing disinfectants or hydrogen peroxide and / or is treated with UV radiation, and the water so treated either in the pelvic area and / or introduced into the inlet to the filter and / or flushing used by water pipes and / or shower systems. Method according to claim 1, characterized in that that the polluted water is hydrogen peroxide in such amounts is added that its concentration behind the catalyst arrangement a maximum of 3 mg / l, in particular a maximum of 1 mg / l. Method according to claim 1 or 2, characterized that as a catalyst arrangement a precious metal-free, corrosion-resistant Full metal catalyst is used.