DOMESTIC WATER

The problematic

Feedwater can contain a large number of inoffensive microorganisms, but also pathogenic ones (fecal streptococci, fecal coliforms, sulfate-reducing bacteria, etc.).

For the water to be potable, these bacteria need to be completely removed. It is therefore necessary to implement an efficient treatment which does not change the organoleptic qualities of the water whilst at the same time completely eradicating the pathogenic microorganisms.
The ultraviolet disinfection process can be used to treat water from boreholes, conveyance systems or from a contaminated well.

To guarantee that the water will be potable, it needs to be chemically potable before the UV treatment, because UV radiation does not affect the chemical composition of water.

Solutions

Sterilization with ultraviolet is a 100% physical treatment, considered to be one of the most effective disinfection-techniques against microorganisms. This system imitates the bactericidal effect of sunlight.

The process disinfects by using the UVC light spectrum at a wavelength of 253.7 nm (the most effective wavelength for the destruction of pathogenic microorganisms).

The nucleic acids (DNA and RNA) of the microorganisms are damaged by radiation from the UV lamps, thus leading to their immediate destruction.

Characteristics

Our machines consist of a food-grade polyethylene or stainless steel body, into which is installed a low pressure UV lamp emitting at a germicidal wavelength of 253.7 nm.
The lamp is protected from the water by a quartz sleeve that acts as an electrical and thermal insulator.

The control panel is positioned directly on the head or on the body of the sterilizer (depending on the model).
It is compound of various security elements :

>> hour counter to check the aging of the UV lamp and record its operating time
>> operating warning light
>> alarm in case the UV lamp stops working

Our equipment can be installed in the main feedwater pipework. Due to the small overall dimensions, only limited space is required and the equipment can also be wall mounted. It is highly recommended to install a filter before the machine, in order to reduce particles that can obstruct the UV radiation. This is why we have designed a special range including both filtration and disinfection in one machine (minimum filtration fineness 25 μ).

Maintenance

The annual maintenance is limited to:

>> lamp replacement

>> cleaning the quartz sleeve

>> change of the filtering cartridge (depending on the model)