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

Table 5

Shape factors for oily and non-oily POME sediments.

Sieve size range (𝜇m)	Oily POME sediments		Non-oily POME sediments
	Aspect ratio (AR)	Circularity	Aspect ratio (AR)	Circularity
- 45 + 38	—	—	2.845	0.380
- 63 + 45	—	—	2.632	0.403
- 125 + 63	2.294	0.438	2.546	0.358
- 250 + 125	1.729	0.549	2.062	0.393
- 500 + 250	1.566	0.519	2.038	0.436
- 800 + 500	1.479	0.479	1.896	0.445
- 1000 + 800	1.397	0.605	1.692	0.504
- 1400 + 1000	1.196	0.558	1.270	0.538