Water and Wastewater.com Help Forum - Destruction of biocides

Water and Wastewater.com Help Forum - Destruction of biocides

Question from Miguel Blabia
We have a wastewater coming from portable toilets,and with a high content of biocides.Before to send it to a biological treatment plant it must destroy biocides, otherwise,all bacteries in the biological system will killed.
How can we do that destruction?

Answer

Dear Miguel Blabia,

Victor Santa Cruz made the point, destruction mode/efficiency will depend on the biocide in question.
As far as I know formaldehyde based and chlorine based chemicals are used in this field. I would try to use oxidation with cautious addition of hydrogenperoxide or ozonation.
The Alken Murray company states on their websites that
"Alken® Treat-A-Loo provides high-quality, low-priced treatment for mobile and portable toilets"
(http://www.alken-murray.com/PROFILE.HTM).
Eventually, there is a possibility to switch to 'biology-based' solutions for toilet cleaners.

Any input from out there? -
biocids used in toilet cleaners?
destruction in this type of wastewater?