Dear all,

I have a practical problem to submit to you:

I have a reservoir of "R" cubic meters of water.

The water flow in/out from this reservoir is 80 liters/seconds.

To the inlet stream, I add a solution which contain 20% Aluminium, with a rate of "A" mg of Al/minute.

The question is:

which is the maximum concentration, measured in the outlet stream, that I can reach ?

Which is the equation that can describe the increasing in concentration of Al in the outlet tube, expressed as mg Al/minute (starting from the start of addition) ?

Thank you a lot for your help !

Giova