Question: I am using the sparging stones (MTC catalog# 48222-06) in my production lines feeding nitrogen into solution. After switching to a bigger dish with more volume, I noticed that the concentration of nitrogen does not reach the same level anymore. What can you suggest for a sparging stone that can handle higher flow rates (current method around 40mL/min)? With our current settings, the nitrogen just bubbles to the surface.

Answer:   Here are some potential solutions to the issue:
1.       Is the stone mounted in the dish?
2.       Can an agitator be added?  This may make the process of getting nitrogen into the solution more effective as 40 mL/min is a very low flow rate.
3.       Can a mesh be added over the stone? This may help keep the gas in solution.

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