Sodium hydrogencarbonate hinders far less the commencement of nitrification.
2
The graphite acted as a supercapacitive reagent concentrator, pumping carbon dioxide into aqueous solution as hydrogencarbonate.
3
After the sodium hydrogencarbonate has been precipitated the mother liquors containing ammonium chloride are treated with lime:
4
Simultaneous oxidation of the anodic metal generated cations, which reacted with the hydrogencarbonate to give mineralised carbon dioxide.
5
The ammonia and carbon dioxide evolved in the latter two reactions are used in the preparation of an additional quantity of ammonium hydrogencarbonate.