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Re: Dioxin formation . . .

At 01:49 AM 10/23/99 -0400, Jim & Jackie Elliott wrote: 
>
> We are being asked to pay for a retrofit to the Wheelabrator MSW incinerator
> in our community for the purpose of "reducing" mercury emissions. The plan is
> for a carbon injection system that cools flue gases allowing extra mercury to
> be captured. A dastardly option! If I'm understanding some of how dioxin is
> formed in the incineration process, cooling the stack gases produces more
> dioxin. Correct? If this is the case, it would be another argument against
> retrofit. Thanks for any help. Jackie



Mercury injection properly done can abate air emissions of mercury to some
degree.  I don't think this would necessarily increase dioxin emissions if done
correctly, but I'm really no expert on the details.  If you could post more
technical details of just what is planned (ask for the "process flow diagrams"
and associated text) you might get some more help from this list.

Good luck.

Alan Muller





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