Journal
MOLECULES
Volume 25, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/molecules25163639
Keywords
immobilisation; pharmaceuticals; endocrine disrupting chemicals; bioremediation; pollutants removal; polyvinyl alcohol
Funding
- Fundacao para a Ciencia e Tecnologia (FCT), Portuguese Agency for Scientific Research [SFRH/BD/81385/2011]
- FCT [UID/QUI/UI0313/2019]
- COMPETE
- Fundação para a Ciência e a Tecnologia [SFRH/BD/81385/2011] Funding Source: FCT
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Pharmaceuticals and their metabolites are released into the environment by domestic, hospital, and pharmaceutical industry wastewaters. Conventional wastewater treatment technology does not guarantee effluents of high quality, and apparently clean water may be loaded with pollutants. In this study, we assess the performance and efficiency of free and immobilised cells of microalgaeNannochloropsissp. in removing four pharmaceuticals, chosen for their occurrence or persistence in the environment. These are paracetamol, ibuprofen, olanzapine and simvastatin. The results showed that free microalgae cells remain alive for a longer time than the immobilised ones, suggesting the inhibition of cell proliferation by the polymeric matrix polyvinyl alcohol. Both cells, free and immobilised, respond differently to each pharmaceutical. The removal of paracetamol and ibuprofen byNannochloropsissp., after 24 h of culture, was significantly higher in immobilised cells. Free cells removed a significantly higher concentration of olanzapine than immobilised ones, suggesting a higher affinity to this molecule than to paracetamol and ibuprofen. The results demonstrate the effectiveness ofNannochloropsissp. free cells for removing olanzapine andNannochloropsissp. immobilised cells for removing paracetamol and ibuprofen.
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