2026-11-01T20:19:18Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/95062024-07-27T00:05:29Zcom_10259_6168com_10259_5086com_10259_2604col_10259_6169

00925njm 22002777a 4500 dc Khan, Aqib Hassan Ali author Soto Cañas, Alberto author Rad Moradillo, Juan Carlos author Curiel Alegre, Sandra author Rumbo Lorenzo, Carlos author Velasco Arroyo, Blanca author De Wilde, Herwig author Pérez de Mora, Alfredo author Martel Martín, Sonia author Barros García, Rocío author 2024-06-19 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. 1614-7499 http://hdl.handle.net/10259/9506 10.1007/s11356-024-33934-2 1614-7499 Phytoremediation Macrophyte Metal and metalloid contamination Hydraulic retention time Toxicity reduction Phytostabilization Wetland mesocosm Macrophyte assisted phytoremediation and toxicological profiling of metal(loid)s polluted water is influenced by hydraulic retention time