Phytoremediation of diclofenac using the Green Liver System: Macrophyte screening to system optimization.

Autor: Esterhuizen M; Ecosystem and Environmental Research Program, Faculty of Biological and Environmental Sciences, University of Helsinki, Niemenkatu 73, 15140 Lahti, Finland; Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, Fabianinkatu 33, 00014 Helsinki, Finland; Korea Institute of Science and Technology Europe (KIST EU), Joint Laboratory of Applied Ecotoxicology, Campus 7.1, 66123 Saarbrücken, Germany; Clayton H. Riddell Faculty of Environment, Earth, and Resources, University of Manitoba, Wallace Bldg, 125 Dysart Rd, Winnipeg, MB R3T 2N2, Canada. Electronic address: maranda.esterhuizen@helsinki.fi., Pflugmacher S; Clayton H. Riddell Faculty of Environment, Earth, and Resources, University of Manitoba, Wallace Bldg, 125 Dysart Rd, Winnipeg, MB R3T 2N2, Canada.
Jazyk: angličtina
Zdroj: New biotechnology [N Biotechnol] 2023 Sep 25; Vol. 76, pp. 82-89. Date of Electronic Publication: 2023 May 20.
DOI: 10.1016/j.nbt.2023.05.004
Abstrakt: Green Liver Systems employ the ability of macrophytes to take up, detoxify (biotransform), and bioaccumulate pollutants; however, these systems require optimization to target specific pollutants. In the present study, the aim was to test the applicability of the Green Liver System for diclofenac remediation considering the effects of selected variables. As a starting point, 42 macrophyte life forms were evaluated for diclofenac uptake. With the three best performing macrophytes, the system efficiency was evaluated at two diclofenac concentrations, one environmentally relevant and that other significantly higher (10 µg/L and 150 µg/L) and in two system sizes (60 L and 1000 L) as well as at three flow rates (3, 7, and 15 L/min). The effect of single species and combinations on removal efficiency was also considered. The highest internalization percentage was recorded in Ceratophyllum spp., Myriophyllum spp., and Egeria densa. Phytoremediation efficiency with species combinations was far superior to utilizing only a single macrophyte type. Furthermore, the results indicate that the flow rate significantly affected the removal efficiency of the pharmaceutical tested, with the highest remediation efficiency obtained with the highest flow rate. System size did not significantly affect phytoremediation; however, increase diclofenac concentration reduced the systems performance significantly. When planning the setup of a Green Liver System for wastewater remediation, basic knowledge about the water, i.e., pollutant types and flow, must be utilized during planning to optimize remediation. Various macrophytes show diverse uptake efficiencies for different contaminants and should be selected based on the pollutant composition of the wastewater.
Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Maranda Esterhuizen reports financial support was provided by National Research Council of Science and Technology.
(Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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