A low pressure, mercury-arc germicidal UV lamp emitting Ultra Violet radiation light at the ideal wavelength of 254 nanometers is extremely effective in penetrating micro-organism present in the water. The UV light damages the DNA part of the bacteria and virus rendering them unable to replicate and reproduce. This is a highly effective way of destroying bacteria and virus in water.

The utilisation of ultra violet light radiation as a process of disinfecting the water (bacteriological and organic reduction) has been a proven process for electronics, pharmaceutical, sewage, food and beverages industries for many years.
This method is now widely recognised and accepted by homeowners. Ultra Violet disinfecting equipment is a very attractive choice as becomes known about chlorine and it’s harmful side effects on human health.

Lamp life. There are two types of lamps, medium pressure and low pressure. Medium pressure lamps run very hot and tend to have quit a short life time, i.e. 3 to 4 months. Purezone UV System uses modern technology low pressure integral lamp which is rated for one year or 9,000 hrs.

Optical clarity of water to light at 254 nm is very important since it affects the depth of the UV light penetration. This can be affected by organic substances and turbidity of the water.
Purezone UV incorporates Multistage filtration to assure the clarity of the water before exposure to UV energy.

Analytical Results and Ancillary Data for Sterilization Efficacy Tests on UVW-100 and UV-200 Sterilizers made by B. C. Research Institute, Vancouver, Canada
 

Model	Feed Water	Water Pressure (psi)	Temperature (C)	Flow (L/min)	Feed Water (CFU/L)	Treated Water (CFU/L)	Sterilization Effectiveness
UVW-100	City water	30	7.2	7.4	7,000	25	99.6%
UVW-200	City water	30	7.2	3.9	7,000	5	99.9%
UVW-100	Creek water	30	7.0	7.4	2,400,000	0	100%
UVW-200	Creek water	30	7.0	3.9	2,400,000	0	100%
UVW-100	Creek water	10	7.0	3.4	2,400,000	0	100%
UVW-200	Creek water	10	7.0	1.7	2,400,000	0	100%

 

For the kitchen:

UVW100
UVW200
UV Plus

For the whole house & cottage:

MOD-1 (Chlorine & sediment removal)
MOD-2 (Sediment & UV Sterilizer)

For apartment buildings & bottling plant:

CD4800
CD5000

For municipal drinking water plant:

CD6000

Custom Designed Application.

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