A simple low-cost UV Zap Chamber made from PVC pipe
and locally available components allows treatment
of large quantities of water at an extremely low
This is a very effective method of purifying water
in public dispensation areas or for an urban home.
Anywhere AC or DC current is available (and a basic
understanding of how dirty water must be treated)
this system can be effectively employed.
Amount of Water Treated
Low pressure mercy arc UV lamp can treat 1 or more
liters per minute.
UV lamps have been shown to kill 99.9 percent of
vegetative bacteria, enteric viruses, and bacterial
spores. Removal rates for UV lamps are lowered by
the presence of organic matter, iron, sulfites,
nitrites, and turbidity because these particles
absorb UV radiation and shield microbes from being
hit with UV rays. UV radiation does not treat
chemical contamination or turbidity.
Ease of Use
UV lamp need to be cleaned regularly and handled
with care because of their mercury content.