Flocculation of Chlorella vulgaris induced by high pH: role of magnesium and calcium and practical implications.

  title={Flocculation of Chlorella vulgaris induced by high pH: role of magnesium and calcium and practical implications.},
  author={Dries Vandamme and Imogen Foubert and Ilse Fraeye and Boudewijn D Meesschaert and Koenraad Muylaert},
  journal={Bioresource technology},
Microalgae hold great potential as a feedstock for biofuels or bulk protein or treatment of wastewater or flue gas. Realising these applications will require the development of a cost-efficient harvesting technology. Here, we explore the potential of flocculation induced by high pH for harvesting Chlorella vulgaris. Our results demonstrate that flocculation can be induced by increasing medium pH to 11. Although both calcium and magnesium precipitated when pH was increased, only magnesium (≥0.15… CONTINUE READING

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