Development of waste biomass based sorbent for removal of cyanotoxin microcystin-LR from aqueous phases

Sok Kim, Yeoung Sang Yun, Yoon-E Choi

Research output: Contribution to journalArticle

10 Citations (Scopus)


The purpose of this study was to establish the strategy to remove the cyanotoxin microcystin-LR (MC-LR) from aqueous solution with the use of biosorption strategy. Specifically, we focused on use of industrial waste biomass, Escherichia coli, to make efficient biosorbents for MC-LR through immobilization of the biomass with polysulfone (PS), coating the polysulfone-biomass composite with polyethylenimine (PEI), and decarboxylation of the PEI-coated composite to remove the inhibitory sites. The resulting sorbent is named in this study as decarboxylated PEI-coated polysulfone-biomass composite fiber (DC-PEI-PSBF). Various sorption experiments including isotherm, kinetics and pH effect on sorption capacity were conducted to evaluate the MC-LR adsorption performance of sorbents. As a result, the DC-PEI-PSBF could be suggested as a highly efficient sorbent able to be directly applied for MC-LR removal from aquatic natures.

Original languageEnglish
Pages (from-to)690-696
Number of pages7
JournalBioresource Technology
Publication statusPublished - 2018 Jan 1



  • Adsorbent
  • Biomass
  • Biosorption
  • Microcystin-LR
  • Polyethylenimine (PEI)

ASJC Scopus subject areas

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

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