UV vs Chlorine

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There are two common methods of disinfecting water, chlorine and ultraviolet (UV) treatment.

Chlorine, in the past, has been more widely accepted than UV. Recently, however, chlorine has been strongly criticised. It not only affects water taste and odour as it disinfects, more importantly, research suggests that chlorine produces cancer causing by-products

Chlorine	UV (Nature FlowÔ Treatment System)
Long retention time required (20-45 minutes).	Fast disinfection (3-5 seconds).
Corrosive.	Non-Corrosive.
Has a distinctive odour, can be tasted, and modifies pH, connected with the production of carcinogens.	Does not effect odour, taste, pH, chemical composition, and does not leave any harmful by-products.
High maintenance.	Low maintenance.
Expensive to run.	Generally cheaper to run than chlorine.
Sodium Hypochlorite degrades back into sodium chloride (salt) and therefore it becomes inactive on storage.	Lamps only need replacing when recommended hours have been reached.
Hazardous when transporting, storing, and handling.	No hazardous chemical.

Ultraviolet disinfection solves the environmental and safety problems associated with chlorination whilst being reliable, efficient and cost effective.

This extract was taken from a Research Project Summary

Click here for other links to articles on different methods of water treatment.

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There are two common methods of disinfecting water, chlorine and ultraviolet (UV) treatment.

Chlorine

This extract was taken from a Research Project Summary

Interested in becoming involved with this growing business sector and exciting UV technology? Licensing Agreements in a number of countries and regions are available. Click here for details.

Last modified: 06 January, 2008