Public swimming pools

Public swimming pools




The water from the public swimming pools, from the recreational or balneary-oriented premises, given the very large amounts involved and the need of maintaining a satisfactory level of thermal comfort (27÷30 °C), undergoes an intensive continuous process of recirculation and conditioning. The contribution of fresh water is only partial, namely for replacing the losses caused by evaporation and other technological losses (the water used to wash the filters).

The contamination of this category of waters supposes two distinct aspects, each of them bringing forth significant risks for the user’s health and comfort : microbiological risks and chemical risks. The two types of contaminations happen together, as the sources of contamination are represented both by the users of the public swimming pools and by the reaction secondary products generated as a result of the technological processes carried out for decontaminating the water. The microbiological contamination from the part of the users is notably due to the direct contact between the skin and the water, as well as to the direct contribution of the organic fluids. The chemical contamination due to swimmers especially takes place as a result of the nitrogen-based substances that derive from their own metabolic processes. In terms of percentages, according to the data in the literature, out of the total diseases that can be caused by the utilisation of the swimming pools, 20 % are gastrointestinal, 30 % are dermatological and the remaining 50 % belong to ENT.

The classical methods of water treatment and disinfection call for the intense utilisation of certain chemical substances, notably compounds of chlorine and bromide, likely to bring forth the appearance of secondary reaction products, thus leading to health risks by the inhalation of the volatile compounds (trihalomethanes), by the contact with the skin and the mucous membranes, as well as by the ingestion of the water from the pool.

The advanced methods of treatment implemented by our company set aside all these shortcomings by the utilisation of the following treatment processes implemented in a combined system :

        - water treatment by ozone ;
        - treatment by UV radiations ;
        - multimedia filtering, adsorption on activated charcoal ;
        - remanent disinfection.

Advantages :

The ozone is produced on-site ; its oxidation power is 1.33 times greater than the one of chlorine, at a disinfection rate 3,000 times higher.

A low consumption of chlorine, of coagulation reactive agents and of bio-acid compounds

The water quality is significantly improved thanks to the mitigation of the turbidity and of the total content of organic substances

Higher safety for the users, thanks to :

        - the elimination of the potentially carcinogenic reaction byproducts of chlorine (trihalomethanes);
        - the complete inactivation of the chlorine-resistant micro-organisms : “Legionella pneumophila”, “Pseudomonas aeruginosa”, “Cryptosporidium Parvum”.

Low operation costs, due to the enhancement of the recirculation degree

The possibility of using the already built available premises

Main features :

        - modular plants, integrated into already existing or new treatment flows ;
        - automated operation, alongside remote data transmission (SCADA) and the automated control of the quality parameters ;
        - safe operation, high reliability.

Systems of treating the pools water by ozone and ultraviolet Radiations