Steel processing industry releases waste water, which contains 20% of Iron with 2 pH. can you suggest any low-cost technique to separate or recover anyone, either acid or Fe from the waste water, pls
In principle, electrodialysis should be able to separate the metal content from the acid. If this works, you recover both.
Thank you Gabor sir for the insight.
As working on the waste water, so will electro dialysis be an economical technique?
pls give your views if you have any idea.
There are a number of processes and the selection would depend on other factors. It is difficult to recover both iron and acid economically though.
Would you know the oxidation state og the iron (II or III) and if the acid is HCl, H2SO4 or HNO3? Perhaps you also know if there are some heavy metals in the solution that could be of concern.
Manisha Agrawal Electrodialysis is a membrane technique, and membranes are not cheap in Europe. But this may be different in India. Also, the process consumes electricity. It can be economical, but the data that Henrik Rasmus Andersen mentionned are indispensable for making a more concrete opinion.
Thank you Henrik sir and Gabor sir for the valuable insight.
Fe is in its Fe3+ state and acid used is HCl .
Major heavy metal present is the Fe (In grams per L)in that. Rest Zn and Cr are present in the ppm Level.
Also suggest the suitable material ,may be metal or non-metal to heating this .
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