Journal
WATER
Volume 11, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/w11091929
Keywords
phyco-remediation; algae; wastewater; emerging contaminants; paracetamol; Danio rerio
Categories
Funding
- Fundacao para a Ciencia e a Tecnologia (FCT, Lisboa, Portugal) [IF/00314/2015, SFRH/BPD/77912/2011]
- Ministerio de Educacion, Cultura y Deportes (Madrid, Spain) [EST15/00405]
- project NOR-WATER Poluentes emergentes nas aguas da Galiza-Norte de Portugal: novas ferramentas para gestao de risco - Programa de Cooperacao Interreg Portugal/Espanha (POCTEP) 2014-2020 [0725_NOR_WATER_1_P]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/77912/2011] Funding Source: FCT
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In this work, zebrafish embryo bioassays were performed to assess the efficiency of microalgae in the removal of acetaminophen from water. Chlorella sorokiniana (CS), Chlorella vulgaris (CV) and Scenedesmus obliquus (SO) were the strains used for water treatment. Toxic effects on zebrafish embryo caused by effluents from microalgae treatment were compared with those observed under exposure to experimental solutions with known concentrations of acetaminophen. The three microalgae strains allowed for the reduction of acetaminophen concentration and its toxic effects, but CS was the most efficient one. At the end of the batch culture, a 67% removal was provided by CS with a reduction of 62% in the total abnormalities on the exposed zebrafish embryo. On the other hand, toxic effects observed under exposure to effluents treated by microalgae were alike to those determined for acetaminophen experimental solutions with equivalent concentration. Thus, it may be inferred that microalgae biodegradation of acetaminophen did not involve an increased toxicity for zebrafish embryo.
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