Sulfur denitrator dual chamber

[castroantonio]

I have a sulfur denitrator dual chamber, first with sulfur, second calcium media. (The sulfur chamber is a recirculation)
I have the pump for make recirculation second chamber.
Do you think this is a good idea?
How works better?
Thank you

 

[tmz]

The idea or the seond chamber with calcium carbonate( aragoni) media is to raisie the pH from the denitrator effluent a bit and add back some alkainity snd calcium. Recirculating in lteh second chamber may not help much since once the pH and alk rises no more media will dissolve.