Does it work against CRYPTOSPORIDIUM and PSEUDOMONAS AERUGINOSA?
( not is this pool, but seen in some
pools in India)
UV-C light is a very powerful germicide. It deactivates and renders
harmless waterborne pathogens that are completely unaffected by chlorine based
disinfectants. Examples of dangerous pathogens (viruses and cysts) neutralized
by UV-C light are Cryptosporidium parvum and Giardia lamblia; chlorine will not
affect these.
UV-C is effective against all microorganisms for example also the
Pseudomonas, papillomavirus and e-coli.
UV-C cannot, however, be used on its own. This is because after the pool
water has been subjected to treatment with UV-C, it is disinfected but
not disinfectant. A secondary disinfectant must be added to the water to
ensure that the water actually in the pool is disinfectant as well as
disinfected. The most commonly used secondary disinfectants are chlorine based
chemicals.
Is the smell of pool water
changes by using UV?
Yes, the smell of pool water
changes. This is because of the lack of chloramines in the pool, UV-C kills
destroys the chloramines.
As a by-product of the disinfection process (as mentioned in the
question above), chlorine combines with bathers’ body fluids in the pool water
to form chloramines. Chloramines are unpleasant substances that cause eye, skin
and nose irritation, breathing difficulties in young children, an unpleasant
swimming pool “chlorine” smell and last but not least, damage to the fabric of
the pool such as tiles, grouts, handrails and other fittings.
UV light is destroys chloramines, thus reducing or even practically
eliminating the undesirable side effects mentioned above of the use of chlorine
based disinfectants.
VGE’s UV-C ranges offer the solutions mentioned above.
Because of the UV-C which disinfects the water, you don’t need chlorine
to disinfect the water, you only need chlorines to make it disinfectant. This
makes sure you are able to decrease the amount of chlorine to a max of 80%
(depending on de type of pool).
Extra
Chlorine increases the PH value,
Less chlorine means less increase of PH. This means you also need less PH or
another acid.
Less acid makes sure the
bicarbonate level is longer stable and needs less corrections.
When it’s a saltwaterpool, less
Chlorine means less salt. You also need less shock.
UV-C kills the bad chloramines,
this means you’ll need to do less maintenance to the pool due to chloramines.
This decreases the maintenance costs.
What are the microorganisms it
tackled by this UV?
Uv-C is effective against all microorganisms.
Is any microorganisms survive
after this UV treatment.
No, when the right amount of UV
and wave-length is used, no micro-organism will survive. The swimmers will be
protected against diseases caused by micro-organism who are resistant of
chlorine.
Do you need to select the UV
unit equivalent to the flow of filter? ( e.g., what is best UV required for
filter pump flow of 125 cu mtr /hr?)
The right UV-unit depends on
different factors. For example the flow, T10, total water volume, temperature
and amount of people swimming in it.
Can you please send me the
T10 and water volume (95%? Normal pool water)? Then we’re able to calculate the
right equipment for you.
Is there any ratio allowed to
reduce the size of UV to be economical?
The economical comparison of the various solutions depends very much on
pool size, design and usage.
Please also see my answers above for the economic benefits and UV-treatment.
You can reduce the amount of UV, for example when the pool is for a while not
in use.
