Skip to main content

Table 2 Efficiency comparison of several common flocculants for microalgal biomass harvesting

From: Microalgae Chlorella vulgaris biomass harvesting by natural flocculant: effects on biomass sedimentation, spent medium recycling and lipid extraction

Flocculants Optimal dosage, g/L Species Algal biomass concentration, g/L Efficiency, % References
Chitosan 0.25 Chlorella vulgaris 1.2 91.9 This study
Chitosan 0.05 Chlorella vulgaris 0.5 92.3 This study
Cationic inulin 0.06 Botryococcus sp. 88.6 [34]
Cationic cassia gum 0.08 Chlamydomonas sp. 0.85 92 [24]
Cationic starch 0.03 Scenedesmus dimorphus 0.12 91 [19]
Aluminum sulfate 2.5 Chlorella vulgaris 1.2 92.4 This study
Aluminum sulfate 0.8 Scenedesmus spinosus 0.4 99.1 [18]
Ferric sulfate 1.5 Scenedesmus spinosus 0.4 61.6 [18]
Ferric chloride 1.1 Chlorococcum sp. 92 [21]
Iron oxide 0.3 Chlorella ellipsoidea 0.8 90 [35]
Yttrium iron oxide 2.5 Chlorella vulgaris 0.82 93 [36]