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藻体修复法从水溶液中去除氟西汀和营养物质。

Fluoxetine and Nutrients Removal from Aqueous Solutions by Phycoremediation.

机构信息

REQUIMTE/LAQV-Associated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), Instituto Superior de Engenharia do Porto-Politécnico do Porto, Rua Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal.

出版信息

Int J Environ Res Public Health. 2022 May 17;19(10):6081. doi: 10.3390/ijerph19106081.

DOI:10.3390/ijerph19106081
PMID:35627618
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9141300/
Abstract

The tertiary treatment using microalgae offers an attractive alternative to the removal of low but relevant concentrations of pharmaceuticals from domestic wastewaters. The removal of fluoxetine from aqueous solutions by living and non-living (lyophilized) was assessed. The determination of the pH at the point of zero charge, Fourier transmittance infrared analysis, and scanning electron microscopy were performed to characterize the microalgae biomass. Kinetic and equilibrium experiments were performed. The pseudo-second-order model described the kinetics of fluoxetine. The corresponding kinetic constants indicated that biosorption was faster onto non-living biomass than onto living biomass. The equilibrium results showed that the systems followed the Langmuir isotherm model. The maximum capacity of living microalgae (1.9 ± 0.1 mg·g) was slightly higher than the non-living microalgae (1.6 ± 0.2 mg·g). Living , free and immobilized in calcium-alginate, were also used to remove fluoxetine and nutrients (nitrogen and phosphorus) from treated municipal wastewater in a batch system. In both experiments, fluoxetine was completely removed within six days. The total phosphorus (TP) and total nitrogen (TN) removal efficiencies achieved for free and immobilized cells were, null and 65.0 ± 0.1%, and 86.2 ± 0.1% and 81.8 ± 3.1, respectively.

摘要

利用微藻进行三级处理为去除生活污水中低浓度但相关浓度的药物提供了一种有吸引力的替代方法。评估了从水溶液中去除氟西汀的方法，包括活体和非活体（冻干）。进行了零电荷点 pH 值的测定、傅里叶变换红外分析和扫描电子显微镜分析，以表征微藻生物质。进行了动力学和平衡实验。拟二阶模型描述了氟西汀的动力学。相应的动力学常数表明，生物吸附在非活体生物质上比在活体生物质上更快。平衡结果表明，该体系遵循朗缪尔等温线模型。活体微藻（1.9±0.1mg·g）的最大容量略高于非活体微藻（1.6±0.2mg·g）。游离和固定在海藻酸钠中的活体微藻也用于在批处理系统中从处理过的市政废水中去除氟西汀和营养物（氮和磷）。在这两个实验中，氟西汀在六天内被完全去除。游离和固定细胞对总磷（TP）和总氮（TN）的去除效率分别为 0%和 65.0±0.1%，86.2±0.1%和 81.8±3.1%。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/20959bf8908c/ijerph-19-06081-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/af8a08f00aba/ijerph-19-06081-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/a0587c6006e4/ijerph-19-06081-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/07f98efed395/ijerph-19-06081-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/80673b4cd43a/ijerph-19-06081-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/26ac55d46b58/ijerph-19-06081-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/907adab73304/ijerph-19-06081-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/58f8896275b5/ijerph-19-06081-g007a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/066eb9bb8b1f/ijerph-19-06081-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/c6bb566f2729/ijerph-19-06081-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/de4783de9b1a/ijerph-19-06081-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/2c4cebb5c494/ijerph-19-06081-g011a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/20959bf8908c/ijerph-19-06081-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/af8a08f00aba/ijerph-19-06081-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/a0587c6006e4/ijerph-19-06081-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/07f98efed395/ijerph-19-06081-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/80673b4cd43a/ijerph-19-06081-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/26ac55d46b58/ijerph-19-06081-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/907adab73304/ijerph-19-06081-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/58f8896275b5/ijerph-19-06081-g007a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/066eb9bb8b1f/ijerph-19-06081-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/c6bb566f2729/ijerph-19-06081-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/de4783de9b1a/ijerph-19-06081-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/2c4cebb5c494/ijerph-19-06081-g011a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ea2/9141300/20959bf8908c/ijerph-19-06081-g012.jpg

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