The treatment of water serves primarily to kill or reduce the microorganisms contained in it (bacteria, viruses, etc.). This process can also be called disinfection or sterilization.Chlorination is the method of disinfection most commonly used for water. The usual procedure applied in practice is to first prepare a chlorine gas or hypochlorite solution in water, and then to add an appropriate quantity of this to the water to be treated.
When the water is treated, the aim is for as few, undesirable by-products as possible to be formed by disinfection. To a certain extent, this can be controlled by the conditions (amount of chlorine, temperature, pH value) prevailing at the time of disinfection.
Concentration measurement of the disinfectants
The disinfectant content must also be determined weekly. With chlorine, for example, this is ideally between 0.3 and 0.6mg/l (free chlorine). JUMO amperometric measuring cells for free chlorine, chlorine dioxide and ozone, with the JUMO AQUIS 500 AS transmitter/controller, are particularly suitable for this.