Letter 7434

Treatment of Boronated Waste Water using an RO Membrane 

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In treatment of boronated waste water by using an RO membrane, what are the most important factors that should be considered? How does the pH factor influence the performance of the treatment (type of membrane that have been used is spiral wound)? pH will influence the concentration of the boron in the water. By theory, the treatment should be done in the pH condition that the boron concentration is minimized. When doing this filtration, what type of ion boron is the easiest to reject (ion boric acid or the complex ion of boron)?

For your information, the concentration of boron is analyzed with the HACH DR/2000 by Carmine method.

Tan Ming C.
Chemical Engineering Pilot Plant (CEPP) - Johor, Malaysia

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