Technical help: How to remove sodium sulfate from wastewater?
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This post was last edited by hesonchang214 on 2011-4-26 at 18:12. Waste water is now being reused, but it contains high levels of sulfates, mainly sodium sulfate and some heavy metal salts. I would like to ask the experts whether there are any cost-effective methods for removing these substances
The last edit to this post was made by hesonchang214 on 2011-4-26 at 18:12. The post does not clearly state what kind of heavy metals are involved; generally, metal ions such as copper, nickel, iron, etc., can be recovered through ion exchange resin processes involving adsorption, elution, and concentration, provided that their concentration is sufficient. Things like sodium sulfate, for example; if necessary, electrical desalination or ion exchange membranes can be used!
This post was last edited by hesonchang214 on 2011-4-26 at 18:12. There is a requirement regarding the concentration of sulfate in the solution; it must not exceed 500 mg/L!
Heavy metal ions are easy to remove, but sodium ions are not. Reverse osmosis membrane treatment can be considered.
Hehe, I was also thinking about ways to solve this problem last year; ion exchange membranes might be a good option, but it’s hard to say anything about the cost
I am also working on this area. Our factory deals with acidic dye wastewater, using electrodialysis and exchange column methods.
The reverse osmosis system can solve it! !
Let’s see what the concentration is. . . I’m also dealing with this headache issue right now – it’s neither high nor low, which is really tricky. . . . Hehe, there’s one last trick: ask Old Wang. . .
Oh, remember to give me extra points. . . . Boss
Was the investment huge all at once last year?
We have applied electroadsorption technology to other projects, and the results have been good; it has low operating costs and causes no secondary pollution!