In a waste water treatment coagulation tank, where TMT15 or the like is added to precipitate heavy metals like Hd, Cd and Pb, what would be the mimimum allowable residence time?
I am not reffering to the decanter that follows but to the precipitation tank, before poly electrolyte is added
I am not reffering to the decanter that follows but to the precipitation tank, before poly electrolyte is added