USEFUL APPLICATIONS FOR ANODISING SLUDGE

I have tons of anodising sludge and similar quantities of aluminium hydroxide sludge generated by neutralising caustic rinses with dilute sulphuric acid.Can anybody find a solution for putting this to valuable use??
presently I am making alum from anodisng sludge,but is there anything else we can do with this???

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pristine04, I'm at a

pristine04,

I'm at a University where we're developing a process that needs a source of Al(3+). After looking around for a cheap source we stumbled on anodising solutions which we've found to work well. I'd like to talk it through with you if you are still interested in finding a use.

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