Hello.

 

Application of electrical current for just a second from an electrode in a metal pot should destroy most if not all life in its water instantaneously.

Why is such procedure not exploited ? At least I do not know of it being used to disinfect water Or is it ?

 

The typical action is to boil the water; with huge amount of power used.

Edited February 22, 200916 yr by Externet

Hello.

 

Application of electrical current for just a second from an electrode in a metal pot should destroy most if not all life in its water instantaneously.

 

Who says it should?

AFAIK, the current method of water purification isn't boiling, but rather filtration and adding chemicals (which should actually be *more* energy efficient than electricity).

Hello John.

I came across a related document that may get similar effects if the poor quality fresh water has some dissolved minerals or a pinch of table salt added; or increasing current or time :

 

http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=154785

 

Mokele:

Yes, no doubt filtering works, not questioning that. But I have a problem with filters in general; as they capture all the undesirable nasty microbes piling them up putrefacting on a layer against the filter wall.

And the next day the water to be filtered is forced to pass through it. ---Yes, change the filter after every use -

 

Miguel

some of these contaminants are so tiny that a good zap of electricity would do little more than just spin them around so they all face the same direction for a short while rather than Kill them.

UV irradiation is another good method though.