Type of aggregates

Diameter d_A

Settling velocity u_S

[mm]

[mm∙s⁻¹]

MA—macro-aggregates

>1.0

>0.13

MI—micro-aggregates

0.10 - 1.0

0.01 - 0.13

PR—primary aggregates

0.001 - 0.10

<0.01

NA—non-aggregated particles

<0.001

Non-separable