The microalgal flora in the effluent was identified following
the Utermo¨ hl’s (1958) method. The samples were immediately
fixed with 4% formaldehyde for laboratory analysis and microalgae
were counted and identified using 2 ml settling chambers
with a Nikon TS 100 inverted microscope at 400x
magnification. The dominant algal strain, Chlorella vulgaris
was used throughout the study work.