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.

中文翻译：

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使用聚乙烯亚胺涂层的聚砜-生物质复合纤维直接从水溶液中吸附去除有害藻类铜绿微囊藻。

近年来，有害藻华（HAB）的处理已成为在全球范围内保护和修复水资源的重要环境问题。在本研究中，试图从水性介质中直接吸附去除有害藻类铜绿微囊藻。废生物质（大肠杆菌）使用聚砜固定，并使用阳离子聚合物聚乙烯亚胺（PEI）进行涂覆，以生成PEI涂层的聚砜-生物质复合纤维（PEI-PSBF）。通过PEI-PSBF处理，水介质（BG11）中的铜绿假单胞菌密度显着降低。此外，使用FE-SEM分析，确认去除了铜绿假单胞菌PEI-PSBF对藻类细胞的吸附机理是引起的。根据磷在铜绿假单胞菌培养样品中藻类细胞生长的概况，我们发现，与未经处理的铜绿假单胞菌相比，吸附在PEI-PSBF上的铜绿假单胞菌丧失了生物学活性。