Hormones in water, standards and methods of removal

​advanced ​treatment ...

​advanced ​treatment ​processes, such ​as UV ozonation,​ advanced ​oxidation, ​activated ​carbon and ​membranes (e.g. ​reverse osmosis,​ nanofiltration)​, can achieve ​higher ​ removal rates  to recover water for reuse.

Published January 18, 2020 07:10 by amdy rana, Sr Manager at M B S

Conventional treatment ...

Conventional treatment processes with chlorination (free chlorine) can remove about 50% of these hormonal compounds, whereas advanced treatment processes, such as UV ozonation, advanced oxidation, activated carbon and membranes (e.g. reverse osmosis, nanofiltration), can achieve higher removal rates;

Published January 17, 2020 19:58 by John Salonich, Vice President / Managing Director

Data quality and validation ...

Data quality and validation are  essential. Some analytical researchers and "peer reviewers" are not so meticulous. When measuring at ppt levels there is much uncertainty in identifications and quantitation unless there has been use of known chemical standards and standard concentration curves. 

Published January 17, 2020 19:12 by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health

Usually not much in treated ...

Usually not much in treated drinking water unless there is a surface water with untreated upstream waste discharge. A data set of 4800 US sites is at  Google EPA UCMR 3 occurrence data summary.

Published January 17, 2020 19:03 by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health

Good Afternoon Tamara, A ...

Good Afternoon Tamara,

A rapidly growing water contaminate and environmental concern is "xenobiotics, xenoestrogens" [ from Greek 'xenos' meaning strange, foreign ] as a result of the destruction of plastics.  There is absolutely no conclusive evidenence completed to date concerning the toxicity levels (MCL)...but what we do know and have learned, it does not look good at all.   

Even though given the lack of conclusive evidence, one thing is for certain....given the choice of consuming and living with or without xenobiotics, we'd rather choose without .   

"xenobiotics, xenoestrogens" are removed by Aquathin's Multi-Barrier RODI UF Process.

Warmest regards,

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Published January 17, 2020 19:03 by Alfred Lipshultz, President at Aquathin Corp.