UV to kill germs in drinking water?

Nicholas Landau nlandau at eden.rutgers.edu
Tue Jun 18 18:08:43 EST 1996

Umnarj Paeratakul <umnarj at mozart.inet.co.th> writes:

>Dear good people,

>Can this be true?  I thought that UV does not penetrate
>well in water. 

UV can penetrate a thin layer of water and cause significant bacterial
mortality in the penetration layer.  However, it does not have the residual
disinfectant activity which chemicals like chlorine do.  I would not store
that water for too long.

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