Solutions / Municipal / Drinking Water / Applications
Giardia Barrier
Giardia can be found worldwide and is one of the most common waterborne parasites. Low UV doses can inactivate Giardia without forming disinfection by-products.
Giardia is a protozoa that is protected by an outer shell. The symptoms from a Giardia infection can last from 2 to 6 weeks.
Traditional methods of chlorine based disinfection require high concentrations and contact times to eliminate Giardia, a situation that is further exacerbated by cold water conditions and leads to increase disinfection by-product formation. UV disinfection easily inactivates Giardia at low doses, without the production of disinfection by-products associated with high chlorine CT’s (concentration x time).
Where the design of chlorine based disinfection systems is governed by highly chlorine resistant organisms like Giardia (as is typically the case in North America), UV disinfection offers a very cost effective treatment solution to reduce the chlorine CT. In this case, UV can form part of a disinfection by-product reduction strategy. Its small footprint can also provide significant cost and space savings compared to the design and construction of a chlorine contact chamber expansion.
Traditional methods of chlorine based disinfection require high concentrations and contact times to eliminate Giardia, a situation that is further exacerbated by cold water conditions and leads to increase disinfection by-product formation. UV disinfection easily inactivates Giardia at low doses, without the production of disinfection by-products associated with high chlorine CT’s (concentration x time).
Where the design of chlorine based disinfection systems is governed by highly chlorine resistant organisms like Giardia (as is typically the case in North America), UV disinfection offers a very cost effective treatment solution to reduce the chlorine CT. In this case, UV can form part of a disinfection by-product reduction strategy. Its small footprint can also provide significant cost and space savings compared to the design and construction of a chlorine contact chamber expansion.
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