Do you know a valid method to reduce chloride concentration with a chemical process?
Chloride ions are best removed by reverse osmosis (RO) (physical method).
Good luck.
Dear Mahendra,
As chloride is very soluble in water, it is difficult to eliminate and the conventional water treatment methods are generally ineffective.
One of the best methods for such amount of chloride are membrane processes such as reverse osmosis.
It is reported a 87% removal rate in the case of a treatment device to the use point based on the reverse osmosis.
With my best regards
Prof. Bachir ACHOUR
Write to me in a direct e-mail and I will let you know my suggestion.
You may consider ion exchange method along with the addition of aluminium and iron base.
Thank you so much to all who replied.
I have tried the Ion exchange method using Amberlite 420 resins (Strong Base) with a respect to standard KHP but could not get the expected results.
Amberlite 420 could be difficult to dissolve. Try MIEX (magnetic ion exchange) resin. This has better precipitation capacity and also can be recovered after precipitation.
Do you speak waste water whitout treatment? for the solubility, Reverse Osmosis is a good method. But, the final solution: you find the source... industrial source maybe?
I have a sample with around 1,00,000 mg/lit Chloride value,so i just want the solution to get rid off from this borden of chloride contents before analysis of COD and want the proper solution to treat that water containing Effluent Treatment plant in the industries. RO method has its limitation over more load of chloride .
thank you Sir your advices will surely be helpful to me.
RO treatment used in the final steps. Moreover it has limitations for such salinity.
Try the ion exchange using artificial resins.
Using RO to remove chlorides is a fool's solution. The rejection fraction in an RO is system is typically 75%. So, now you have taken a waste stream and concentrated all, or nearly all of the chlorides into 75% of the original stream volume. Now, you have a really concentrated chloride stream that you have to deal with. Show me how this is a solution. The solution is to reduce chlorides in the process to begin with instead of allowing them into your wastestream.
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