Table 1 Particle size distribution of the different PET particles.

From: Effect of polyethylene terephthalate particles on filamentous bacteria involved in activated sludge bulking and improvement in sludge settleability

Sample number

Cumulative 10% particle size (μm)

Cumulative 50% particle size (μm)

Cumulative 97% particle size (μm)

Specific surface area (m2/kg)

Average particle mass (g/piece)

PET-1

73.73

111.61

152.65

72.79

0.769 × 10–5

PET-2

354.27

450.22

674.46

10.07

0.298 × 10–3

PET-3

641.97

936.49

1346.99

6.83

0.920 × 10–3