PPT Slide
Nitrification
almost exclusively nitrogen metabolizing bacteria:
Nitrasomonas spp.[broad temp tolerance, best around neutral pH]:
NH4+ + 1/12 O2 ® 2 H+ + NO2- + H2O + energy
Nitrobacter spp. [ less tolerant of cold and higher pH]
NO2- + 1/2 O2 ® NO3- + energy
note: 2 moles O2 per mole of NH4, nitrogenous oxygen demand