In article <4pv09q$8kc at senior.nectec.or.th> Umnarj Paeratakul <umnarj at mozart.inet.co.th> writes:
>From: Umnarj Paeratakul <umnarj at mozart.inet.co.th>
>Subject: UV to kill germs in drinking water?
>Date: 15 Jun 1996 18:44:10 GMT
>Dear good people,
>Recently I read an advertisement from a company selling
>"water purification system". The ad claims that they
>have a machine that will shine a strong UV light to tap
>water, and the water comes out "cleaned from germs".
>Can this be true? I thought that UV does not penetrate
>well in water.
>Umnarj Paeratakul
>umnarj at mozart.inet.co.th>umnarj at psm.swu.ac.th>......................................................
UV purification works fairly well for small amounts of water, as long as it
does not contain much suspended particulate matter. Even small amounts of
particulate matter can greatly reduce the effectiveness of UV purification.
James Collins
