Harvesting of oleaginous Chlorella sp. by organoclays

Young Chul Lee, Bohwa Kim, Wasif Farooq, Jane Chung, Jong In Han, Hyun Jae Shin, Sang Hwa Jeong, Ji Yeon Park, Jin Suk Lee, You Kwan Oh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

In microalgae-based biorefinement, one of the highest practical priorities is to reduce the costs of downstream processes. As one potential solution, microalgae harvesting by organoclays has received particularly keen research interest. In the present study, cationic charged aluminum- and magnesium-backboned organoclays were synthesized and solubilized in aqueous solution due to their high-density of amino sites. Each, within 30. min of its injection into 1.7. g/L-concentration microalgal feedstocks, effected harvesting efficiencies of almost 100% at concentrations above 0.6. g/L while maintaining a neutral pH. Conclusively, organoclays, if recycled efficiently, can be uniquely effective microalgae harvesting agents.

Original languageEnglish
Pages (from-to)440-445
Number of pages6
JournalBioresource Technology
Volume132
DOIs
StatePublished - Mar 2013
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by a grant from the Korea Institute of Energy Technology Evaluation and Planning (KETEP)’s New & Renewable Energy program funded by the Korean Ministry of Knowledge Economy (Project number: 20103020090020) and Energy Efficiency and Resources R & D project (Project number: 2012-T-100201516) under the auspices of the Korean Ministry of Knowledge Economy.

Keywords

  • Biodiesel
  • Biorefinery
  • Harvesting
  • Microalgae
  • Organoclay

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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