Acrylonitrile effluents ...

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Acrylonitrile effluents contain also  by activated sludge process non degradable heterocyclic compound pyrazol, up to 500 mg/L . We succeeded to solve the problem via adapted biofilms fixed on special biocarriers.

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Consider the risk of killing off your custom grown fixed film bugs.  If you surge or have a toxic event, then getting them back and acclimated could take several weeks to get it back.  Better have some storage.  If you use an AOP, then you are talking about hours to a couple of days to that a system may be down, and you immediately return to making quality effluent if it is followed by regular AS.  Just think of the risk if you have a “variable” process and get hit with a critical to quality event.  Happy that the other process is working well, but just consider the risk versus reward and ask yourself how lucky do you feel?  Best of luck, my friend.  Sean L Roop

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we plan to dilute the Acrylonitrile effluents with others, and the proportion will lower than 10%, is that work in your view?
 

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Dear Lin, Hi. Dilution a waste by another does not seem to be useful since maybe there is a conflict in choosing methods. In Cyanide in your waste, for instance, you can remove it with AOP and the Oxygen leftovers may help you for the Acrylonitrile part. I suggest that you can do the dilution process with the outlet water comes out of the WW treating system. Please consider that if you over dilute the waste maybe your sensors (such as ORP electrodes) can`t sense the small number of specific pollutions.

Good Luck

Published by alireza Reyhan, Eng

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