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Old 2020-08-14, 00:46   #1008
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Aug 2003
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Originally Posted by tServo View Post
This is a common component of birth control pills, for instance. I question whether water treatment plants can completely render them harmless. Also, many homes and cottages have septic tanks which will leave hormones intact.
And so many other chemicals/drugs.

The answer is no and yes. Standard primary and secondary treatment can have almost no effect on those items. Tertiary has little to no effect on them. Advanced treatment and treatment systems for direct reuse (membrane bio reactors, RO, etc.) can have a good chance of clearing a major portion of them out of the water.
I don;t know if the UV exposure in a pond treatment system would help.

Septic tanks will disperse the water component to a leach field. The ground microbes may or may not do anything.

Last fiddled with by Uncwilly on 2020-08-14 at 00:46
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