Metals in soil treated with gamma alumina-based nanomaterials. Retention and availability of aluminium, iron and nickel
1 School of Science and Technology, National University of San Martín (UNSAM), Miguelete Campus, (1650) San Martín, Argentina.
2 ENEL Power Generation, (1107) CABA, Argentina.
3 Environmental Engineery and Investigation Institute, 3iA, National University of San Martín (UNSAM)and National Council of Scientific Investigation (CONICET), IIIA, Campus Miguelete, (1650) San Martín, Argentina.
4 National Atomic Energy Commission, Constituyentes Atomic Center, (1650) San Martín, Argentina.
5 National Atomic Energy Commission, Bariloche Atomic Center, (8400) Bariloche, Argentina.
Research Article
International Journal of Life Science Research Archive, 2022, 03(01), 064–069.
Article DOI: 10.53771/ijlsra.2022.3.1.0066
Publication history:
Received on 02 July 2022; revised on 09 August 2022; accepted on 11 August 2022
Abstract:
Manufactured products containing nanomaterials based on metals increase continuously and can probably reach different environmental compartments. Soil contamination was evaluated through two experiments consisting on different methods (one using lysimeters and the other using a short method with agitation), developed under laboratory conditions. The lysimeters, which were long-term irrigated (for 121 or 142 days) with two different gamma alumina-based nanomaterials and the control ones, were disassembled and the soils analized. Some physicochemical characteristics and the concentration of Al, Fe and Ni were evaluated (Experiment A). On the other hand, the small-sample shaking method, designed solely to quantify soil contamination with metals, was carried out in search of a method requiring shorter periods of time (Experiment B) than those required by conventional methods using lysimeters. Finally, both methods were compared. Important retention of Ni from the nanomaterials was observed: 0.014 mg/g from 0.037 mg/g added as NiO-Al2O to a lysimeter and 0.13 mg/g from 0.70 mg/g added as NiO-Al2O or Ni-Al2O3 to the vessels used in the shaking method. The results lead us to conclude that the study through lysimeters allows evaluating the contamination of soil samples with nanomaterials and that the agitation method could probably be used in preliminary tests carried out before developing studies with lysimeters.
Keywords:
Nanomaterials; Lysimeters; Metals quantification; Shaking method; Comparative analysis
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