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Nitrification is often not effective because the characters of nitrifying bacteria is alwaysÂ slow growing and temperature, pH, DO, amonia concentration, nitrite and C/N ratio asÂ the limited factors. Batch experiment was operated for 6 hours, every half an hoursÂ ammonium, nitrite and nitrate were measured.
The results showed that added C sourse (glucose) in medium from PDAM Bogor
and Surabaya have a significant effects of ammonium degradation, nitrite and nitrateÂ production.Â Degradation of ammonium in batch reactor from PDAM Bogor showed that both Â naerobic and aerobic condition have a different fluctuation. Production of nitrite wasÂ stable from the middle of reaction to last of aerobic phase. In aerobic condition nitrateÂ production is reduced to 49,21 % (+ glucose) and 60,87% (+ acetate)Â Batch reactor from PDAM Surabaya differ from PDAM Bogor particularly on degradationÂ of ammonium. Added glucose as C source cause the concentration of ammonium wasÂ increased and acetate as C source showed stable with a slightly fluctuation. Nitrite andÂ nitrate production relatively small in both C source.
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