Harvesting of freshwater microalgae with microbial bioflocculant: a pilot-scale study

Table 2 Microalgae harvesting capableness of different technologies at pilot or large-scale conditions

Harvesting techniques	Microalgal species	Treated volume (L)	Harvesting efficiency (%)	References
Flocculation with B. licheniformis broth	Desmodesmus brasiliensis	50–200	≥98	This study
pH increment	Tetraselmis suecica, Chaetoceros calcitrans, Chlorella muelleri, Skeletonema sp., Rhodomonas salina, Attheya septentrionalis, Nitzschia closterium, Chlorella muelleri, Thalassiosira pseudonana	10–1000	≥80	[28]
Foam fractionation	Chaetoceros sp.	220	90	[41]
Foam flotation	Chlorella sp.	10–10.2	≥92	[27, 54]
Flocculation	Scenedesmus sp.	1000	>96	[38]
Gravity sedimentation coupled with filtration	Staurosira sp., Desmodesmus sp.	200	80	[37]
Centrifugation	Chaetoceros muelleri	550	90	[40]
Flotation under vacuum	Not precised	2000	49.5	[39]

The table presents reported data about the efficiency of different technologies applied in microalgae harvesting at pilot or large-scale conditions in order to compare with the experimental results described in the present article

ISSN: 2731-3654