Chitosan coagulation-membrane filtration of Chlorella vulgaris

Duu Jong Lee, Guan Yu Liao, Yin Ru Chang, Jo-Shu Chang

Research output: Contribution to journalArticle

10 Citations (Scopus)


Filtration separation of Chlorella vulgaris, a species with excellent potential for CO 2 capture and lipid production, was studied using a surface-modified hydrophilic polytetrafluoroethylene (PTFE) membrane. Coagulation using chitosan effectively removed turbidity at >100 mg l -1 chitosan. The membrane filtration flux at 1 bar was increased with chitosan dose. The filtered cake at the end of filtration tests peaked in solid content at 100 mg l -1 chitosan, reaching 30.5% w/w, about 50% higher than that of the original suspension. Coagulation using 100 mg l -1 chitosan followed by PTFE membrane filtration at 1 bar is a feasible process to harvest C. vulgaris from the algal froth.

Original languageEnglish
Pages (from-to)15643-15647
Number of pages5
JournalInternational Journal of Hydrogen Energy
Issue number20
Publication statusPublished - 2012 Oct 1

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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