Strategies to control the growth of cyanobacteria and recovery using adsorption and desorption

Jeong Sik Choi, Yun Hwan Park, Sok Kim, Jino Son, Jaewon Park, Yoon E. Choi

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, adsorption strategy using diethylenetriamine-modified cotton fiber (DETA-cotton) was investigated to control the target cells in aqueous phase. Adsorptive removal of M. aeruginosa using the DETA-cotton showed decrease in cell concentration from (100 ± 4.0) × 104 cells/mL to (32.1 ± 0.7) × 104 cells/mL in 24 h, and the concentration of microcystin did not increase during the removal process. Also, an increase in the amine groups on the surface was confirmed through the surface characterization by FT-IR and XPS. Desorption process was performed to analyze total lipid and fatty acid contents for potential use as bio-energy resources. About 90 % of the adsorbed cells were recovered through desorption, and the lipid content and composition were more suitable for use as biodiesel raw materials. Our adsorption-based approach might provide feasible solution not only to counteract environmental issue HABs but also to recover energy-resources from the harmful cyanobacterial species.

Original languageEnglish
Article number128133
JournalBioresource technology
Volume365
DOIs
Publication statusPublished - 2022 Dec

Keywords

  • Adsorption and desorption
  • Bioenergy
  • Cell recovery
  • Harmful algal bloom
  • Microcystis aeruginosa

ASJC Scopus subject areas

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

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