Ultraviolet (UV) Technology
Disinfection may be accomplished by chemical or physical methods. However, an increased awareness of the many disadvantages of chemical disinfectants; especially the most common, chlorine, leads many wastewater engineers to search for a non-chemical means. The solution to this quest is both energy and cost efficient ultraviolet systems. These systems embody many attractive features and benefits.
Ultraviolet light provides a physical process for the disinfection of water and wastewater without the disadvantages associated with chemical disinfection. UV either kills microorganisms or inactivates their reproductive capability - effectively disinfecting wastewater effluent. In the process of disinfecting with UV, wastewater flows past specially engineered light bulbs, which emit ultraviolet light energy. This form of treatment reduces free chlorine levels required up to 99%.
About Ultraviolet Transmittance (UVT)
The effectiveness of UV is subject to the clarity of the water treated. Suspended solids in the water act as sequestering agents for pathogens, interfering with light penetration.
Specifically, UVT is a measure of the ratio of light entering and exiting water, usually reported for a path length of 1 cm. As UV absorbance increases, UV transmittance decreases:
%UVT=100 x 10-A.
Water Is Precious
Water is a precious resource that affects everyone, every day. As the world’s population increases, so too does the demand for water. At Aqua Azul, we’re committed to reducing water stress and maximizing this invaluable resource for current and future generations.