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

Table 4

The size characteristic and statistical parameters extracted from PSD graphs of oily and non-oily POME sediments.

From graph	Oily POME sediments	Non-oily POME sediments
𝐷5, 𝜇m	160	78
𝐷10, 𝜇m	185	95
𝐷16, 𝜇m	200	120
𝐷50, 𝜇m	355	325
𝐷84, 𝜇m	520	650
𝐷90, 𝜇m	600	725
𝐷95, 𝜇m	710	800
Geometric median diameter (𝐷50), 𝜇m	355	325
Geometric mean diameter (𝐷𝑔), 𝜇m	322.500	279.285
Geometric standard deviation (𝜎𝑔)	1.612	2.327