To complete the previously information issued on the feasibility study and some technical challenges identified
from the application of bacterial technology, this study presents another characteristics of numerical
output as the bacterial growth is now also limited to ammonium nitrogen and water temperature. Based on
the results obtained, it is found that the degradation of readily biodegradable COD will be much slower because
of lower bacterial growth. At certain period, the COD concentration will increase and be plotted higher
later on compared to the model which is limited only to substrate and oxygen. Besides the ammonium nitrogen,
other parameters i.e. particulate products from COD decay and particulate degradable organic nitrogen
will also increase soon after certain time. Considering the increase of ammonium nitrogen as it is also converted
to nitrate nitrogen, it can be predicted that some algae may show up during the treatment processes.
When the model is simulated under different water temperature, slower biodegradation process is presented
at lower water temperature. Because the bacteria grow better at higher water temperature, more oxygen is
then required. Finally, from this study, it is also identified that the artificial mixing and addition of oxygen at
initial stage of treatment will considerably influence the restoration