Research Article

Characterization of Oily and Non-Oily Natural Sediments in Palm Oil Mill Effluent

Figure 4

SEM images of (a) oily and (b) non-oily POME particles at 1000x magnification.
298958.fig.004a
(a) Oily POME particles
298958.fig.004b
(b) Non-oily POME particles