Clavijo Rivera, E

Couallier, Estelle

Drevet, V

Frappart, M

Liu, S.

Rabiller Baudry, M

Szymczyk, A

Villafaña López, L

English

Szymczyk, Anthony

HAL-Rennes 1

Characterisation of the fouling of an ultrafiltration polyethersulfone membrane fouled by an emulsion modelling lipids issued from Microalgae

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Characterisation of the fouling of an ultrafiltration
polyethersulfone membrane fouled by an emulsion
modelling lipids issued from Microalgae
V Drevet, S. Liu, E Clavijo Rivera, L Villafaña López, M Frappart, Estelle
Couallier, A Szymczyk, M Rabiller Baudry
To cite this version:
V Drevet, S. Liu, E Clavijo Rivera, L Villafaña López, M Frappart, et al.. Characterisation of the
fouling of an ultrafiltration polyethersulfone membrane fouled by an emulsion modelling lipids issued
from Microalgae. ICOM, Jul 2017, San Francisco, United States. ￿hal-02353535￿
Characterisation	of	the	fouling	of	an	ultra1iltration	polyethersulfone	membrane	
fouled	by	an	emulsion	modelling	lipids	issued	from	Microalgae	
V.	Drevet	1,	S.	Liu	2,	E.	Clavijo	Rivera	2,	L.	Villafaña	López	2,	M.	Frappart2	,	E.	Couallier	2*,	A.	Szymczyk	1,	M.	Rabiller	Baudry	1*	
1 Université de Rennes 1, Université Bretagne Loire, Institut des Sciences Chimiques de Rennes, France 
2 CNRS, Université de Nantes, Université Bretagne Loire, Laboratoire GEPEA, Saint Nazaire, France  
 
Context /Objectives  
q  Microalgae can transform CO2 in biomass and in high value molecules such as triglycerides, proteins or polysaccharides.  
q Membrane filtration is a promising process for Microalgae biorefinery : low energy consumption / integrity of all valuable compounds / valorization of all fractions.  
q However integration of membranes is not trivial because of the complexity of feed solutions that may contain cell fragments, lipids, etc.  
q This work aims at the integration of ultrafiltration for the recovery of lipids.  
        è A synthetic Oil /Water emulsion was formulated based on the lipids profile of a microalgae cultured under nitrogen starving conditions 
        è Fouling was characterized thanks to permeate flux, ATR-FTIR and streaming current measurements 
 
  
-  Strain:  
      P. kessleri 
Membranes Screening  
thanks to  Emulsion filtration. Emulsion preparation  
Hydrophilic	part	
Hydrophobic	part	
Surfacta
nt	
Membranes Screening: UF, MF  
Hydrophilic:  PAN, PES/PVP 
Hydrophobic:  PVDF  
Hydrophobicity  
Water contact angle 
Fouling characterization 
Charge: Streaming current 
 è Zeta potential  
Identification/quantification 
ATR-FTIR  
flat membranes (130 cm2) 
Cross-flow filtration (1 m.s-1) at 30°C 
TMP = 0.2 - 0.4 bar 
Increasing VRR= 1 -4 
Retentate		Emulsion	
Permeate	
membrane	
Membrane selection  
Pre-homogenization at 85°C 
Stirring: 24,000 rpm 
Mixer: Ultraturrax,  30 min 
Cooling 
Characterization 
of Lipids 
produced by a 
microalgae   
-  cultured under 
nitrogen starving 
conditions  
-  Grinding  
-  Centrifugation 
-  Characterization 
of Lipids in 
supernatant 
Emulsion 
formulation -  Permeate flux 
-  Retention  
-  Reversible / irreversible Fouling 
-  Cleanability O/W emulsion: 20 g.L-1 
-  14 g.L-1  neutral 
lipids (vegetable oils 
mixture) 
 
-  6 g.L-1  polar lipids 
as surfactants  
conductivity= 790 µS.cm-1 
 
pH = 7.4 
Membrane	
Polymer	
MWCO	/	pore	
size	
Critical	
TMP	
(bar)	
Lp	water													
L⋅h-1⋅m-2⋅bar-1	
Lp	emulsion																				
L⋅h-1⋅m-2⋅bar-1	
Lp	emulsion		
/	Lpeau	
J	cleaned	
membrane	
	
/	Jwater	
Lipid	
Retention	
PAN	 500	kg.mol-1	 0.25-0.40	 82	–	325		 63	–	160	 0.5	–	0.8	 0.92	 0.985	PES/PVP	 200	kg.mol-1	 0.26-1.00	 20-152	 15-85	 0.5-0.	8	 0.81	 0.987	PVDF	 0.4	μm	 0.20-0.25	 50-250	 50-110	 0.4-0.9	 0.98	 0.946-0.985	PVDF	 1.5	μm	 0.25	 51	 27	 0.5	 0.86	 0.966-0.981	
-80	
-70	
-60	
-50	
-40	
-30	
-20	
-10	
0	
Ze
ta
	p
ot
en
3a
l	(
m
V)
	
0	
5	
10	
15	
20	
25	
1	 10	
Pe
rm
ea
te
	1l
ux
	(L
.h
-1
.m
-2
)	
VRR	
	PES	200	KDa	PAN	500	KDa	PVDF	0,4	µm	PVDF	1,5	µm	
July 29- August 4 -  2017 
San Francisco, USA, Poster P1.257 
 
Modelling of Oil / Water emulsion and general approach 
q UF /MF  è PAN membrane: the best one 
q UF virgin / fouled membranes: 
                                        Zeta potential                                                                                 ATR-FTIR 0																																																																																5																																																																					10																																																																																																																																																													pH	
Virgin	PAN	
Fouled	PAN	
Virgin	PES/PVP	
Fouled	PES/PVP	
q The	PES/PVP	membrane	isoelectric	point	increased	after	fouling	
q The	PAN	membrane	charge	was	more	negative	after	fouling	
q Fouling	had	more	impact	on	the	PAN	membrane	surface	charge	than	on	PES/PVP	membrane	
0	0.1	
0.2	0.3	
0.4	0.5	
0.6	0.7	
0.8	
600	800	1000	1200	1400	1600	1800	
Ab
so
rb
an
ce
	(a
u)
	
Wavenumber	(cm-1)	
Lipids 
1744 
C=O 
PES 
1577  
C=C 
PVP	
1660		
C=O	
PES/PVP	membrane	
o Virgin			
o Fouled	by	o/w	emulsion	at	0.25	bar		
o Fouled	by	dry	deposit	of	1926	µg.cm-2								advocado	oil	---	
0.04 
0.05 
0.06 
0.07 
0.08 
0.09 
0.10 
0.11 
0.12 
0 500 1000 1500 2000 2500 
H
17
44
 / 
H
15
77
   
   
   
   
   
   
 
Vegetable oil (µg.cm-2) *estelle.couallier@univ-nantes.fr		murielle.rabiller-baudry@univ-rennes1.fr,			anthony.szymczyk@univ-rennes1.fr	


HAL-Univ-Nantes

https://hal.archives-ouvertes.fr/hal-02353535/file/Poster%20ICOM-Macclime-Drevet-2017.pdf

Characterisation of the fouling of an ultrafiltration polyethersulfone membrane fouled by an emulsion modelling lipids issued from Microalgae

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