The sulfide content in the water purified by the stripping tower is not up to standard
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For the purified water, the sulfide level has always been in the 30s or 40s, while the ammonia nitrogen level is within the acceptable range. Do any of you who are experienced in this area have any suggestions?
Is the handling method related to the company?
Increase the amount of acidic gas appropriately; is this also a side-stream extraction from the pressurized side of a single tower?
The temperature at which the side stream is drawn is too low, indicating an insufficient amount of stripping steam; check whether there has been any change in the ammonia nitrogen content of the feed material entering the tower.
In a single-tower setup, if the volume of acidic gas is increased too much, the temperature at the top of the tower will rise; the liquid level in the acidic gas separation tank will increase as well, and the acidic gas will contain ammonia.
Is 156 degrees for the survey line still low? Is there a direct relationship between high sulfide levels and ammonia nitrogen?
Considering that alkaline substances are present in acidic water, sulfides are precipitated there; stripping is a method used to deal with this, but the sulfuride levels detected in the purified water end up being high.
Is there a clearer photo? The data is not visible