RT info:eu-repo/semantics/article
T1 Macrophyte assisted phytoremediation and toxicological profiling of metal(loid)s polluted water is influenced by hydraulic retention time
A1 Khan, Aqib Hassan Ali
A1 Soto Cañas, Alberto
A1 Rad Moradillo, Juan Carlos
A1 Curiel Alegre, Sandra
A1 Rumbo Lorenzo, Carlos
A1 Velasco Arroyo, Blanca
A1 De Wilde, Herwig
A1 Pérez de Mora, Alfredo
A1 Martel Martín, Sonia
A1 Barros García, Rocío
K1 Phytoremediation
K1 Macrophyte
K1 Metal and metalloid contamination
K1 Hydraulic retention time
K1 Toxicity reduction
K1 Phytostabilization
K1 Wetland mesocosm
K1 Química agrícola
K1 Agricultural chemistry
K1 Bioquímica
K1 Biochemistry
AB The present study reports findings related to the treatment of polluted groundwater using macrophyte-assisted phytoremediation. The potential of three macrophyte species (Phragmites australis, Scirpus holoschoenus, and Typha angustifolia) to tolerate exposure to multi-metal(loid) polluted groundwater was first evaluated in mesocosms for 7- and 14-day batch testing. In the 7-day batch test, the polluted water was completely replaced and renewed after 7 days, while for 14 days exposure, the same polluted water, added in the first week, was maintained. The initial biochemical screening results of macrophytes indicated that the selected plants were more tolerant to the provided conditions with 14 days of exposure. Based on these findings, the plants were exposed to HRT regimes of 15 and 30 days. The results showed that P. australis and S. holoschoenus performed better than T. angustifolia, in terms of metal(loid) accumulation and removal, biomass production, and toxicity reduction. In addition, the translocation and compartmentalization of metal(loid)s were dose-dependent. At the 30-day loading rate (higher HRT), below-ground phytostabilization was greater than phytoaccumulation, whereas at the 15-day loading rate (lower HRT), below- and above-ground phytoaccumulation was the dominant metal(loid) removal mechanism. However, higher levels of toxicity were noted in the water at the 15-day loading rate. Overall, this study provides valuable insights for macrophyte-assisted phytoremediation of polluted (ground)water streams that can help to improve the design and implementation of phytoremediation systems.
PB Springer Nature
SN 1614-7499
YR 2024
FD 2024-06-19
LK http://hdl.handle.net/10259/9506
UL http://hdl.handle.net/10259/9506
LA eng
NO Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work is funded by the GREENER project of the European Union’s Horizon 2020 Research and Innovation Program (Grant Agreement No. 826312). S. Curiel and A. Soto were funded by Junta de Castilla y León (ORDEN EDU/1508/2020, de 15 de diciembre and ORDEN EDU/842/2022 de 6 de julio).
DS Repositorio Institucional de la Universidad de Burgos
RD 27-jul-2024