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González-Feijoo R, Santás-Miguel V, Arenas-Lago D, Álvarez-Rodríguez E, Núñez-Delgado A, Arias-Estévez M, Pérez-Rodríguez P. Effectiveness of cork and pine bark powders as biosorbents for potentially toxic elements present in aqueous solution. ENVIRONMENTAL RESEARCH 2024; 250:118455. [PMID: 38367838 DOI: 10.1016/j.envres.2024.118455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/03/2024] [Accepted: 02/08/2024] [Indexed: 02/19/2024]
Abstract
Cork oak and pine bark, two of the most prolific byproducts of the European forestry sector, were assessed as biosorbents for eliminating potentially toxic elements (PTEs) from water-based solutions. Our research suggests that bioadsorption stands out as a viable and environmental eco-friendly technology, presenting a sustainable method for the extraction of PTEs from polluted water sources. This study aimed to evaluate and compare the efficiency of cork powder and pine bark powder as biosorbents. Specifically, the adsorption of Fe, Cu, Zn, Cd, Ni, Pb and Sn at equilibrium were studied through batch experiments by varying PTEs concentrations, pH, and ionic strength. Results from adsorption-desorption experiments demonstrate the remarkable capacity of both materials to retain the studied PTE. Cork powder and pine bark powder exhibited the maximum retention capacity for Fe and Cd, while they performed poorly for Pb and Sn, respectively. Nevertheless, pine bark showed a slightly lower retention capacity than cork. Increasing the pH resulted in cork showing the highest adsorption for Zn and the lowest for Sn, while for pine bark, Cd was the most adsorbed, and Sn was the least adsorbed, respectively. The highest adsorption of both materials occurred at pH 3.5-5, depending on the PTE tested. The ionic strength also influenced the adsorption of the various PTEs for both materials, with decreased adsorption as ionic strength increased. The findings suggest that both materials could be effective for capturing and eliminating the examined PTEs, albeit with different efficiencies. Remarkably, pine bark demonstrated superior adsorption capabilities, which were observed to vary based on the specific element and the experimental conditions. These findings contribute to elucidating the bio-adsorption potential of these natural materials, specifically their suitability in mitigating PTEs pollution, and favoring the recycling and revalorization of byproducts that might otherwise be considered residue.
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Affiliation(s)
- Rocío González-Feijoo
- Department of Plant Biology and Soil Science, Area of Soil Science and Agricultural Chemistry, Faculty of Sciences, University of Vigo, Ourense, 32004, Spain; Agroecology and Food Institute (IAA), University of Vigo - Campus Auga, 32004, Ourense, Spain
| | - Vanesa Santás-Miguel
- Department of Plant Biology and Soil Science, Area of Soil Science and Agricultural Chemistry, Faculty of Sciences, University of Vigo, Ourense, 32004, Spain; Agroecology and Food Institute (IAA), University of Vigo - Campus Auga, 32004, Ourense, Spain; Microbial Ecology, Department of Biology, Lund University, Ecology Building, 22362, Lund, Sweden
| | - Daniel Arenas-Lago
- Department of Plant Biology and Soil Science, Area of Soil Science and Agricultural Chemistry, Faculty of Sciences, University of Vigo, Ourense, 32004, Spain; Agroecology and Food Institute (IAA), University of Vigo - Campus Auga, 32004, Ourense, Spain
| | - Esperanza Álvarez-Rodríguez
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Avelino Núñez-Delgado
- Department of Soil Science and Agricultural Chemistry, Engineering Polytechnic School, University of Santiago de Compostela, 27002, Lugo, Spain
| | - Manuel Arias-Estévez
- Department of Plant Biology and Soil Science, Area of Soil Science and Agricultural Chemistry, Faculty of Sciences, University of Vigo, Ourense, 32004, Spain; Agroecology and Food Institute (IAA), University of Vigo - Campus Auga, 32004, Ourense, Spain
| | - Paula Pérez-Rodríguez
- Department of Plant Biology and Soil Science, Area of Soil Science and Agricultural Chemistry, Faculty of Sciences, University of Vigo, Ourense, 32004, Spain; Agroecology and Food Institute (IAA), University of Vigo - Campus Auga, 32004, Ourense, Spain.
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Pérez-Rodríguez P, Soto-Gómez D, De La Calle I, López-Periago JE, Paradelo M. Rainfall-induced removal of copper-based spray residues from vines. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 132:304-310. [PMID: 27344398 DOI: 10.1016/j.ecoenv.2016.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 04/18/2016] [Accepted: 06/15/2016] [Indexed: 06/06/2023]
Abstract
The continuous use of copper against fungal diseases and off-target effects causes major environmental and agronomic problems. However, the rain-induced removal of Cu-based residues is known only for a limited number of crops. We present the results of rain-induced removal of fungicides from two monitored vineyard plots which were sprayed with two widely used Cu-based formulations: copper-oxychloride (CO) and Bordeaux mixture (BM), respectively. Cu removal per growing season was 0.60±0.12kgha(-1) (30% of the applied fungicide) for CO and 0.80±0.10kgha(-1) for BM (70% of the applied fungicide). Fractioning the Cu in soluble (CuS) and particulate fractions (CuP) showed that most of the Cu was removed as CuP, but CuS concentrations found in throughfall collectors exceeded the regulatory threshold for toxicity in surface waters. The first few millimeters of rain caused most of the Cu removal. Our findings agreed with the data reported in the scientific literature, in which a significant fraction of the Cu-based formulation is loosely attached to the plant surfaces. In addition, we found that rainfall energy had a minor influence on the removal.
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Affiliation(s)
- P Pérez-Rodríguez
- Área de Edafoloxía e Química Agrícola, Dpto. Bioloxía Vexetal e Ciencia do Solo, Facultade de Ciencias, Universidade de Vigo, Ourense 32004, Spain.
| | - D Soto-Gómez
- Área de Edafoloxía e Química Agrícola, Dpto. Bioloxía Vexetal e Ciencia do Solo, Facultade de Ciencias, Universidade de Vigo, Ourense 32004, Spain
| | - I De La Calle
- Departamento de Química Analítica y Alimentaria, Área de Química Analítica, Facultad de Química, Universidad de Vigo, Campus As Lagoas-Marcosende s/n, 36310 Vigo, Spain; Ultra Trace Analyses Aquitaine UT2A/ADERA, Hélioparc Pau-Pyrénées, 2 avenue du Président Angot, 64053 PAU cedex 9, Pau, France
| | - J E López-Periago
- Área de Edafoloxía e Química Agrícola, Dpto. Bioloxía Vexetal e Ciencia do Solo, Facultade de Ciencias, Universidade de Vigo, Ourense 32004, Spain
| | - M Paradelo
- Área de Edafoloxía e Química Agrícola, Dpto. Bioloxía Vexetal e Ciencia do Solo, Facultade de Ciencias, Universidade de Vigo, Ourense 32004, Spain; Department of Agroecology, Faculty of Science and Technology, Aarhus University, Blichers Allé 20, P.O. Box 50, 8830 Tjele, Denmark
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Symonds BL, Thomson NR, Lindsay CI, Khutoryanskiy VV. Rainfastness of Poly(vinyl alcohol) Deposits on Vicia faba Leaf Surfaces: From Laboratory-Scale Washing to Simulated Rain. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14220-14230. [PMID: 27070864 DOI: 10.1021/acsami.6b01682] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Rainfastness is the ability of agrochemical deposits to resist wash-off by rain and other related environmental phenomena. This work reports laboratory-scale and raintower studies of the rainfastness of fluorescently labeled poly(vinyl alcohol) (PVA) using fluorescent microscopy combined with image analysis. Samples of hydrolyzed PVA exhibit improved rainfastness over a threshold molecular weight, which correlates with PVA film dissolution, swelling, and crystalline properties. It was also established that the rainfastness of PVA scaled with the molecular weight over this threshold. These PVA samples were further characterized in order to determine the effect of the crystallinity on rainfastness. The quantification of rainfastness is of great interest to the field of agrochemical formulation development in order to improve the efficacy of pesticides and their adjuvants.
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Affiliation(s)
- Brett L Symonds
- Reading School of Pharmacy, The University of Reading, Whiteknights , P.O. Box 224, Reading RG6 6AD, U.K
| | - Niall R Thomson
- Syngenta, Jealott's Hill International Research Centre , Bracknell, Berkshire RG42 6EY, U.K
| | - Christopher I Lindsay
- Syngenta, Jealott's Hill International Research Centre , Bracknell, Berkshire RG42 6EY, U.K
| | - Vitaliy V Khutoryanskiy
- Reading School of Pharmacy, The University of Reading, Whiteknights , P.O. Box 224, Reading RG6 6AD, U.K
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Yanagawa A. Seawater influence monitored by NaCl on the growth of Trametes versicolor. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:932-937. [PMID: 26538261 DOI: 10.1007/s11356-015-5719-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 10/29/2015] [Indexed: 06/05/2023]
Abstract
There are only a few scientific data about the function of ecosystems after tsunami disasters. The ecosystems help the environment to recover after a disaster, and therefore, the research on its function is important. We estimated the seawater influences on wood degradation after a tsunami disaster by the growth of Trametes versicolor. The debris from the Great East Japan Earthquake on the pacific coast in March 2011 was used for the simulations. Its growth on debris was compared with those on seawater-treated woods, and the amount of sodium chloride was examined to know the approximate amount of salts in the samples. Sodium chloride contents were employed as an indicative parameter of sea salts, which contained many elements. As a result, this common white-rot fungus degraded wood debris in the same way as sound sapwood. Although the study was conducted at the laboratory level, this is the first report from the real debris, which assessed the fungal decomposition ability of the ecosystem after a tsunami disaster.
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Affiliation(s)
- Aya Yanagawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, 611-0011, Japan.
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