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Biodegradation. 2018 Aug;29(4):349-358. doi: 10.1007/s10532-018-9840-2. Epub 2018 Jun 25.

Adsorptive removal of harmful algal species Microcystis aeruginosa directly from aqueous solution using polyethylenimine coated polysulfone-biomass composite fiber.

Author information

1
Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.
2
Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea.
3
Biological Disaster Analysis Group, Korea Basic Science Institute, Gwahak-ro, Yuseong-gu, Daejeon, 34133, Republic of Korea.
4
Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea. yechoi@korea.ac.kr.

Abstract

In recent times, the treatment of harmful algal blooms (HABs) became an important environmental issue to preserve and remediate water resources globally. In the present study, the adsorptive removal of harmful algal species Microcystis aeruginosa directly from an aqueous medium was attempted. Waste biomass (Escherichia coli) was immobilized using polysulfone and coated using the cationic polymer polyethylenimine (PEI) to generate PEI-coated polysulfone-biomass composite fiber (PEI-PSBF). The density of M. aeruginosa in an aqueous medium (BG11) was significantly decreased by treatment with PEI-PSBF. additionally, analysis using FE-SEM, confirmed that the removal of M. aeruginosa algal cells by PEI-PSBF was caused by the adsorption mechanism. According to the profiles of phosphorus for the algal cell growth in M. aeruginosa cultivating samples, we found that the adsorbed M. aeruginosa onto the PEI-PSBF lost their biological activity compared to the non-treated M. aeruginosa cells.

KEYWORDS:

Adsorbent; Adsorption; Harmful algal blooms (HABs); Microcystis aeruginosa; Polyethylenimine (PEI)

PMID:
29943215
DOI:
10.1007/s10532-018-9840-2
[Indexed for MEDLINE]

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