Bottom or fly ash to soften cooling tower makeup water

[Brian2903]

Can I use bottom or fly ash from the coal fire power plant to soften the cooling tower water in order to run high cycles of concentration and lower the cost of dispersant?

 

[mbeychok]

Brian2903:

I have never heard of anyone doing that or even researching that. Where have you read of or heard of any such usage being considered? I would very much like to have that information.

Milton Beychok
(Visit me at www.air-dispersion.com)
.

 

[bimr]

Fly ash and bottom ash contain only about 10% lime so it is not practical.

http://www.wisconsinpublicservice.com/news/ash.asp

 

[orenda1168]

Brian2903:

Besides which how would you ever accomodate the various water soluble fly ash reminants in your cooling tower water???

Not a winning idea!!


Orenda

 

[bimr]

If only 10% of the material in fly ash is lime, that will leave you with the expense of dewatering the rest of fly ash (90%) as sludge solids.