Exploration on Bioflocculation of Nannochloropsis oculata Using Response Surface Methodology for Biodiesel Production

Table 4

Comparison of different harvesting methods and their efficiencies.

Method	Microalgae	Harvesting efficiency (%)	References
Bioflocculation with whole cell	Nannochloropsis oculata	>95	Current study
Flocculation with polyelectrolytes	Chaetoceros calcitrans	>90	[13]
Flocculation with γ-poly glutamic acid	Chlorella vulgaris and Nannochloropsis oculata	>90	[23]
Flocculation with AlCl3	Chlorella minutissima	>90	[35]
Flocculation with cationic polymer	Chlorococcum sp.	>89	[36]
Flocculation with chitosan	Thalassiosira pseudonana	90	[37]
Centrifugation	Phaeodactylum tricornutum	94	[37]
Increasing pH	Dunaliella tertiolecta	90	[38]