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Chemical Exchange Programs ??

Chemical Exchange Programs ??

Chemical Exchange Programs ??

(OP)
I am looking to replace aqueous sodium hydroxide solution (20wt%) for waste water neutralization (of dilute organic acids) with an alkaline alternative (cost reduction initiative).  I have considered lime slurry, but am a bit hesitant to travel down that road.  

Does any one know where I can find alternative alkaline material through chemical exchange programs?  I have searched the TCEQ "Renew" site without any success.  Quantity needed =~1MM lb eq. NaOH/yr on a continuous basis.  

http://www.zerowastenetwork.org/renewdev/index.cfm?Page=browsebytype&Type=A&ID=02   

RE: Chemical Exchange Programs ??

Have you considered magnesium hydroxide slurry as an alternative? Easier to control pH than lime slurries and less hazardous.

Orenda

RE: Chemical Exchange Programs ??

(OP)
Yes.  I have looked at lime slurry, magnesium hydroxide, and soda ash without much cost advantage.  

Does anyone know what industries might produce an alkaline stream (electronics, petrochem, etc..)?   

RE: Chemical Exchange Programs ??

Just a Wild Thought though.
Any possibilities to explore
Sodium Sufides or any organic sulfides(waste water stream's potential) utilization?

Best Regards
Qalander(Chem)

RE: Chemical Exchange Programs ??

I've seen this "initiative" in my career as well.

MgOH2 is a likely candidate.  Since you've already ruled that out I won't express my opinions.

Another possibility is ammonium hydroxide.  Sometimes the economics on it make it attractive.  However the issue you have is disposal of the neutralized stream.

Also a word of caution on other sites waste streams.  They usually have trace contaminants from their process so be very careful with going that route.

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