Table 1. IB model parameters.

Index	Parameters	Symbol	Values	Units	References
1	Substrate affinity	Ks,HET	0.000035	kgm−3	[26]
2	Max. specific growth rate	μm,HET	1.000000	h−1	[27]
3	Yield coefficient	YHET	0.610000	$\frac{gCOD}{gCOD}$	[28]
4	Shear rates	γ	0.250000	s−1	chosen
5	Spring coef for collision	Kn	1 × 10−4	Nm−1	[29]
6	Viscous coef for collision	γn	1 × 10−5	s−1	Chosen
7	EPS stiffness	Ke	5 × 109	s−2	[30]
	Dimension	Lx × Ly × Lz	200 × 40 × 100	μm3	-
	Cartesian grid cells	Nx × Ny × Nz	30 × 12 × 30	-