1. Introduction
Domestic wastewater treatment in urban areas is one of the
crucial elements to be considered in the development of a country
in order to sustain individual’s health and welfare. Untreated
wastewater can lead to spreading of disease in the form of several
types of endemic and epidemic illnesses (Ahmad et al., 2008).
There are various kind of wastewater treatment applications
nowadays ranging from modest, low priced, and less efficient processes
to very advanced, highly efficient and pricey operations. The
selection among these processes should acknowledge local area