Symbol	Units	Explanation
$\dot{\mathrm{V}}$	L/min	Volumetric flow rate
μ(T)	Pa s	Temperature‐dependent viscosity
‐B		Backflushing
C	g/L	Concentration (Indices: 0: Start, f: final, x: biomass)
C. vulgaris		Chlorella vulgaris
CF	Critical flux
DW		Dry weight
E	kJ/kWh	Energy (indices: v: per m3 permeate, w: per kg algae biomass)
EOM		Extracellular organic matter
FC	–	Concentration factor
FS		Flux‐stepping
g	kg m/s2	Gravity acceleration
H	m	Pumping height
HDPE		High‐density polyethylene
IFM		Improved flux‐step method
J	L/m2/h	Permeate flux
J c	L/m2/h	Critical flux
MF		Microfiltration
MWCO		molecular weight cut‐off
OD		Optical density
P	–	Power (indices: th: theoretical, s: pump specific, a: aeration)
p	bar	Pressure (index hydro: hydrostatic)
PES‐PVD		Polyethersulfone polyvinylpyrrolidone
PVDF		Polyvinylidene fluorid
‐R		Relaxation
Rm	m−1	Membrane resistance
S. cerevisiae		Saccharomyces cerevisiae
TMP	mbar	Transmembrane pressure
TSS		Total suspended solids
UF		Ultrafiltration
VRF	–	Volumetric reduction factor
η	–	Efficiency factor
ρ	kg/m3	Density