1:5:10:365 EcoTip Blog

July 15, 2008

:197 UV Water Purification

Welcome to today’s 1:5:10:365 Tip for becoming a better steward for our home and planet environment.

1:5:10:197 EcoTip: Ultra Violet Light (UV) has some uses for killing bacteria as a part of water purification. Think of it as an alternative to chlorination. Unlike chlorine it has no residual effect.


 Additional Information:

Suggested Review: :190, :191, :192, :193, :194, :195, :196

UV has been used for helping to achieve low bacteria levels in spas, hot tubs, wells and water purification units. The UV light needs to be shielded so it is concentrated on the water and avoids causing damage to people’s eyes and skin. UV is rendered useless when “shadowing” occurs. In order for it to be effective the bacteria must be exposed to the UV light. Sediment, hardness, minerals, iron, manganese or turbidity will also make the UV system ineffective because the bacteria is shielded from the UV.

This information was paraphrased from the third edition (released in May 2008 ) of Prescriptions for a Healthy House: A Practical Guide for Architects, Builders & Homeowners which I wrote with architect Paula Baker-LaPorte and physician Erica Elliott.

Would you like to receive an email alert for each new 1:5:10:365 EcoTip? Sign up for a Google Alert.


Leave a Comment »

No comments yet.

RSS feed for comments on this post. TrackBack URI

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

Create a free website or blog at WordPress.com.

%d bloggers like this: