Write a field visit report showing the processes showing Sewage treatment plant Okla.

The report should include:

$-$ General information about the plant $($place$,$ purpose, treatment capacity$)$

$-$ Simplified flow diagram of the plant $($showing only the important treatment processes$)$

$-$ Functions of the each process $($a few lines for each$)$

$-$ Operational and maintenance issues of the processes in the plant

$-$ References