Novel iron-based nanocomposites for arsenic removal in groundwater: insights from their synthesis to implementation for real groundwater remediation

SCHEVERIN, V. N.; RUSSO, A.; GRÜNHUT, M.; HORST, M. F.; JACOBO, S.; LASSALLE, V. L.

Environmental Earth Sciences

Springer

Año: 2022 vol. 81

1866-6280

The presence of arsenic in water samples of different nature represents a serious problem with severe consequences all aroundthe world, but mainly in India, China, Central Africa, and Latin America. In this regard, the groundwater of the Bahía Blancaregion (Bs. As. Province, Argentina in Latin America) clearly represents this problem, containing As levels higher than200 μg L−1. On many occasions, this resource is almost the unique source of water for human consumption and other uses.The available technology is not suitable and efficient enough to provide solutions in this context. This work proposes thepreparation of low-cost, easy handle and efficient material to mitigate the As contamination problem. The aim is to provideuseful materials that may be implemented in the real environment; in particular, to remediate groundwater from critical ruralzone. Nanocomposites with different nominal ratios of zeolite and magnetite nanoparticles were synthesized. These materialswere entirely characterized by FTIR, XRD, TEM, capillary microelectrophoresis, and dynamic light scattering. Adsorp-tion assays were performed in batches using groundwater samples collected in the rural region of Bahía Blanca (southernChaco-Pampean plain, Argentina). The stability and reuse capability of these adsorbents were evaluated. The possibility ofdesigning a continuous flow system was also explored by comparing the As removal data achieved in this condition withthe percentage of removal corresponding to the performed batch assays. The findings collected within this work appear verypromising in view of the design of a household system to remove As from groundwater. (PDF) Novel iron-based nanocomposites for arsenic removal in groundwater: insights from their synthesis to implementation for real groundwater remediation. Available from: https://www.researchgate.net/publication/359277229_Novel_iron-based_nanocomposites_for_arsenic_removal_in_groundwater_insights_from_their_synthesis_to_implementation_for_real_groundwater_remediation [accessed Mar 29 2022].