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Malinkina ON, Shmakov SL, Shipovskaya AB. Structure, the energy, sorption and biological properties of chiral salts of chitosan with l- and d-ascorbic acid. Int J Biol Macromol 2024; 257:128731. [PMID: 38101672 DOI: 10.1016/j.ijbiomac.2023.128731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/18/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
The influence of l- and d-ascorbic acid diastereomers on the structure, supramolecular ordering, energy, sorption and biological properties of heterochiral (D-L) and homochiral (D-D) salt complexes of chitosan (d-glucan)-acid was studied. The thermal effect of dissolving chitosan in l-ascorbic acid and the protonation degree of (D-L)-salts were lower than those in the medium of the d-isomer. Homochiral (D-D) salts, in contrast to heterochiral (D-L) ones, are distinguished by a more developed system of intermolecular and intramolecular contacts, a more ordered and equilibrium supramolecular organization of macrochains, a higher crystallinity degree, and a smaller amount of crystallization water. The sorption isotherms of chiral salts were approximated by the thermal equation of sorption and the superposition of the Langmuir and Flory-Huggins isotherms. Significant differences were found in the limiting value and energy of sorption, the constant of adsorption equilibrium, the limiting sorption capacity of the localized mode of water, and the Gibbs mixing energy. Biotesting on non-vascular (Scenedesmus quadricauda) and vascular eukaryotes (Linum usitatissimum) revealed the growth-stimulating effect of the D-D salts. The obtained results confirm our hypothesis of the homochiral salt complexes d-glucan-d-ascorbic acid best corresponding to the principles of the functional organization of biological objects.
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Affiliation(s)
- Olga N Malinkina
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, Saratov 410012, Russian Federation.
| | - Sergei L Shmakov
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, Saratov 410012, Russian Federation
| | - Anna B Shipovskaya
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, Saratov 410012, Russian Federation
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Vasileva A, Durakova A, Kalaydzhiev H, Dimitrova-Dicheva M, Goranova Z, Vasilev V, Temelkova M. Nectarine powder of Bulgarian origin: Physicochemical composition, antioxidant activity, microbiological and sorption characteristics. Heliyon 2024; 10:e24059. [PMID: 38268587 PMCID: PMC10806340 DOI: 10.1016/j.heliyon.2024.e24059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 12/05/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024] Open
Abstract
One way to improve the quality of food products is by conducting more thorough research on regional foods. This approach has several benefits, such as promoting human health, supporting the local economy, and preserving cultural food traditions. In this regard, our study investigated the potential of nectarine powder as a regional fruit product that could be developed into a global innovation. The present study examined: the physicochemical composition, antioxidant activity, microbiological load, and adsorption and desorption characteristics of the nectarine powder. The fruit powder was acquired through the use of a heat pump dryer, where drying took place at 42 °C for a duration of 8 h until achieving a moisture content ranging from 13.5 % to 14.5 %. The approximate physicochemical values are as follows: proteins, total carbohydrates, crude fiber, ash content and total lipids. Microbiological parameters, namely the total count of mesophilic aerobic and facultative anaerobic microorganisms, yeasts and molds, Escherichia coli, Salmonella spp., coagulase-positive staphylococci, and coliforms were checked and found to be within the acceptable limits as stipulated by the relevant state standards. Antioxidant activity was demonstrated through the utilization of various methods, including DPPH (33.19 ± 0.09mMTE/g extract), ABRS (2.55 ± 0.05mMTE/g extract), FRAP (1.43 ± 0.03mMTE/g extract) and CUPRAC (0.83 ± 0.01mMTE/g extract) methods. Investigation of the mass transfer sorption characteristics is performed using the gravimetric-static method. The conditions of the experiment were selected according to the usual conditions in which the food products are found in the commercial depot. The equilibrium and monolayer moisture data are investigated at 10 °C, 25 °C and 40 °C and relative air humidity in the wide range from 11 % to 87 %, achieved by the salts saturated solutions. To depict the adsorption and desorption isotherms, the modified models of Halsey, Chung-Pfost, Henderson, and Oswin were selected.
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Affiliation(s)
- Adelina Vasileva
- Department of Mechanical and Instrument Engineering, Technical University of Sofia, Branch Plovdiv, Tsanko Duistabanov Street 25, 4000 Plovdiv, Bulgaria
| | - Albena Durakova
- Department of Process Engineering, University of Food Technologies, Maritza Boulevard 26, 4002 Plovdiv, Bulgaria
| | - Hristo Kalaydzhiev
- Department of Analytical and Physical Chemistry, University of Food Technologies, Maritza Boulevard 26, 4002 Plovdiv, Bulgaria
| | - Milena Dimitrova-Dicheva
- Department of Milk and Dairy Products Technology, University of Food Technologies, Maritza Boulevard 26, 4002 Plovdiv, Bulgaria
| | - Zhivka Goranova
- Department of Food Technology, Institute of Food Preservation and Quality, Vasil Aprilov Boulevard 154, 4003 Plovdiv, Agricultural Academy, Bulgaria
| | - Vasko Vasilev
- Department of Economics and Finance, University of Agribusiness and Rural Development (UARD), Dunav Boulevard 78, BG-4003 Plovdiv, Bulgaria
| | - Milena Temelkova
- Department of Language Training Centre, University of Food Technologies - Plovdiv, Maritza Boulevard 26, BG-4002 Plovdiv, Bulgaria
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Lisiecka N, Ciesielski T, Sopata O, Parus A, Woźniak-Karczewska M, Simpson M, Frankowski R, Zgoła-Grześkowiak A, Kloziński A, Siwińska-Ciesielczyk K, Klapiszewski Ł, Niemczak M, Owsianiak M, Heipieper HJ, Chrzanowski Ł. Sorption of ionic liquids in soil enriched with polystyrene microplastic reveals independent behavior of cations and anions. Chemosphere 2023; 341:139927. [PMID: 37633614 DOI: 10.1016/j.chemosphere.2023.139927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/20/2023] [Accepted: 08/21/2023] [Indexed: 08/28/2023]
Abstract
Recently, much attention has been focused on the application of the Ionic Liquids (ILs) with herbicidal activity in agriculture. It has been suggested that through the appropriate selection of cations and anions, one can adjust the properties of ILs, particularly the hydrophobicity, solubility, bioavailability, toxicity. In practical agricultural conditions, it will be beneficial to reduce the mobility of herbicidal anions, such as the commonly applied 2,4-dichlorophenoxyacetic acid [2,4-D] in the soil. Furthermore, microplastics are becoming increasingly prevalent in the soil, potentially stimulating herbicidal sorption. Therefore, we investigated whether cations in ILs influence the mobility of anions in OECD soil supplemented with polystyrene microplastic (PS). For this purpose, we used the 2,4-D based ILs consisting of: a hydrophilic choline cation [Chol][2,4-D] and a hydrophobic choline cation with a C12chain [C12Chol][2,4-D]. Characterization of selected micropolystyrene was carried out using the BET sorption-desorption isotherm, particle size distribution and changes in soil sorption parameters such as soil sorption capacity and cation exchange capacity. Based on the batch sorption experiment, the effect of microplastic on the sorption of individual cations and anions in soil contaminated with micropolystyrene was evaluated. The results obtained indicate that the introduction of a 1-10% (w/w) PS resulted in an 18-23% increase of the soil sorption capacity. However, the sorption of both ILs' cations increased only by 3-5%. No sorption of the [2,4-D] anion was noted. This suggests that cations and anions forming ILs, behave independently of each other in the environment. The results indicate the fact that ILs upon introduction into the environment are not a new type of emerging contaminant, but rather a typical mixture of ions. It is worth noting that when analyzing the behavior of ILs in the environment, it is necessary to follow the fate of both cations and anions.
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Affiliation(s)
- Natalia Lisiecka
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Tomasz Ciesielski
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Olga Sopata
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Anna Parus
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland.
| | - Marta Woźniak-Karczewska
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Maria Simpson
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Robert Frankowski
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | | | - Arkadiusz Kloziński
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | | | - Łukasz Klapiszewski
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Michał Niemczak
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland
| | - Mikołaj Owsianiak
- Quantitative Sustainability Assessment Division, Department of Environmental and Resources Engineering, Technical University of Denmark, Produktionstorvet 424, 2800 Kgs. Lyngby, Denmark
| | - Hermann J Heipieper
- Department of Environmental Biotechnology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany
| | - Łukasz Chrzanowski
- Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland; Department of Environmental Biotechnology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany
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Moharem ML, Hamadeen HM, Mesalem MO, Elkhatib EA. Potential use of nanoparticles produced from byproducts of drinking water industry in stabilizing arsenic in alkaline-contaminated soils. Environ Geochem Health 2023; 45:6727-6743. [PMID: 37380922 PMCID: PMC10403416 DOI: 10.1007/s10653-023-01663-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 06/12/2023] [Indexed: 06/30/2023]
Abstract
The stabilization of heavy metals in soils is considered a cost-effective and environmentally sustainable remediation approach. In the current study, the applicability of water treatment residual nanoparticles (nWTRs) with the particle size ranged from 45 to 96 nm was evaluated for its efficacy in reducing arsenic mobility in clayey and sandy contaminated alkaline soils. Sorption isotherms, kinetics, speciation and fractionation studies were performed. Sorption equilibrium and kinetics studies revealed that As sorption by nWTRs-amended soils followed Langmuir and second-order/power function models. The maximum As sorption capacity (qmax) of Langmuir increased up to 21- and 15-folds in clayey and sandy soils, respectively, as a result of nWTRs application at 0.3% rate. A drastic reduction in non-residual (NORS) As fraction from 80.2 and 51.49% to 11.25 and 14.42% for clayey and sandy soils, respectively, at 0.3% nWTRs application rate was observed, whereas residual (RS) As fraction in both studied soils strongly increased following nWTRs application. The decline in percentage of As mobile form (arsenious acid) in both soils after nWTRs application indicated the strong effect of nWTRs on As immobilization in contaminated soils. Furthermore, Fourier transmission infrared spectroscopy analysis suggested reaction mechanisms between As and the surfaces of amorphous Fe and Al oxides of nWTRs through OH groups. This study highlights the effective management approach of using nWTRs as soil amendment to stabilize As in contaminated alkaline soils.
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Affiliation(s)
- Mohamed L Moharem
- Regional Center for Food and Feed, Agricultural Research Center, Alexandria, Egypt
| | - Hala M Hamadeen
- Departments of Soil and Water Sciences, College of Agriculture (Elshatby), Alexandria University, Alexandria, 21545, Egypt.
| | - Mohamed O Mesalem
- Departments of Soil and Water Sciences, College of Agriculture (Elshatby), Alexandria University, Alexandria, 21545, Egypt
| | - Elsayed A Elkhatib
- Departments of Soil and Water Sciences, College of Agriculture (Elshatby), Alexandria University, Alexandria, 21545, Egypt.
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Jiménez-Skrzypek G, Hernández-Expósito OM, Hernández-Borges J, González-Sálamo J. Sorption of levonorgestrel on polyethylene, polystyrene and polypropylene microplastics. Chemosphere 2023:139042. [PMID: 37244556 DOI: 10.1016/j.chemosphere.2023.139042] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/23/2023] [Accepted: 05/24/2023] [Indexed: 05/29/2023]
Abstract
Sorption studies involving microplastics (MPs) are essential to understand the mechanisms implicated in contaminant retention. In this research, a complete study of the sorption behaviour of a hormonal contraceptive -levonorgestrel- in MPs of different composition in two distinct matrices was performed, using high-performance liquid chromatography coupled to a UV detector for the determination of levonorgestrel. Characterization of the studied MPs was achieved by X-ray diffraction and differential scanning calorimetry, and Fourier-transformed infrared spectroscopy. Kinetic and isotherm studies were performed using a batch design under controlled conditions: 500 mg of MPs pellets of 3-5 mm diameter, agitation at 125 rpm, and 30 °C. The comparison of results in ultrapure water and artificial seawater, revealed changes in sorption capacity, and the predominant sorption mechanisms involved. Overall, all studied MPs showed sorption affinity towards levonorgestrel, being low-density polyethylene the one with the highest sorption capacity in ultrapure water and polystyrene in seawater.
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Affiliation(s)
- Gabriel Jiménez-Skrzypek
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, S/n., 38206, San Cristóbal de La Laguna, Spain; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, S/n., 38206, San Cristóbal de La Laguna, Spain
| | - Orlando Manuel Hernández-Expósito
- Centro Asociado de Tenerife de La Universidad Nacional de Educación a Distancia (UNED). C. San Agustín, 30. 38009, San Cristóbal de La Laguna, Spain
| | - Javier Hernández-Borges
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, S/n., 38206, San Cristóbal de La Laguna, Spain; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, S/n., 38206, San Cristóbal de La Laguna, Spain
| | - Javier González-Sálamo
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, S/n., 38206, San Cristóbal de La Laguna, Spain; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, S/n., 38206, San Cristóbal de La Laguna, Spain; Department of Chemistry, Sapienza University, P.le Aldo Moro, 5. 00185, Rome, Italy.
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Kodešová R, Fedorova G, Kodeš V, Kočárek M, Rieznyk O, Fér M, Švecová H, Klement A, Bořík A, Nikodem A, Grabic R. Assessment of potential mobility of selected micropollutants in agricultural soils of the Czech Republic using their sorption predicted from soil properties. Sci Total Environ 2023; 865:161174. [PMID: 36586677 DOI: 10.1016/j.scitotenv.2022.161174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/20/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
The sorption of organic contaminants in soils and sediment is a crucial factor affecting their mobility in the vadose zone environment. The Freundlich sorption isotherms were evaluated for eleven micropollutants and eight soils. The highest Freundlich sorption coefficients, KF, were obtained for triclosan (324 ± 153 cm3/nμg1-1/ng-1) followed by sertraline (120 ± 74), venlafaxine (74.3 ± 41.2), telmisartan (33.3 ± 13.6), atorvastatin (8.66 ± 4.78), bisphenol S (8.03 ± 4.87), lamotrigine (6.92 ± 3.02), 2-phenylbenzimidazole-5-sulfonic acid (3.77 ± 2.25), memantine (3.42 ± 1.64), 1-methyl-1H-benzotriazole (2.05 ± 0.99), and valsartan (0.88 ± 0.89). The KF values for the individual compounds were correlated with soil properties. Multiple linear regressions were used to derive equations for predicting the KF values using the soil properties. The first set of equations contained mainly properties with the strongest correlations with the KF values, e.g., a base cation saturation for positively charged compounds or a hydrolytic acidity for negatively charged compounds. The second set of equations contained properties included in the map of agricultural soils of the Czech Republic. These equations always indicated positive correlations with oxidizable organic carbon and clay content. They also included either a negative or positive correlation with pHKCl. A positive correlation with pHKCl was obtained for venlafaxine, memantine, and sertraline, which were mostly positively charged. A negative correlation with pHKCl was obtained for the remaining compounds. The second set of equations, the soil map, and the database of soil properties were used to predict the KF value distributions within the Czech agricultural soils. It resulted in similar KF distributions' patterns for valsartan, lamotrigine, atorvastatin, and telmisartan (with a positive correlation between KF and hydrolytic acidity), which considerably differed from the KF patterns for the other compounds. These maps were used to delineate areas with a leaching potential of the compounds toward groundwater that will serve as a tool for assessing a potential groundwater vulnerability.
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Affiliation(s)
- Radka Kodešová
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, CZ-16500 Prague 6, Czech Republic.
| | - Ganna Fedorova
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, CZ-38925 Vodňany, Czech Republic
| | - Vít Kodeš
- Czech Hydrometeorological Institute, Na Šabatce 2050/17, CZ-14306 Praha 4, Czech Republic
| | - Martin Kočárek
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, CZ-16500 Prague 6, Czech Republic
| | - Oleksandra Rieznyk
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, CZ-16500 Prague 6, Czech Republic
| | - Miroslav Fér
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, CZ-16500 Prague 6, Czech Republic
| | - Helena Švecová
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, CZ-38925 Vodňany, Czech Republic
| | - Aleš Klement
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, CZ-16500 Prague 6, Czech Republic
| | - Adam Bořík
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, CZ-38925 Vodňany, Czech Republic
| | - Antonín Nikodem
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, CZ-16500 Prague 6, Czech Republic
| | - Roman Grabic
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, CZ-38925 Vodňany, Czech Republic
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Stępień A, Grzyb K. Comparison of critical storage parameters of the powders containing soy protein isolate and inulin, based on the concepts: Water activity and Temperature of glass transition. Int J Biol Macromol 2023; 230:123174. [PMID: 36642364 DOI: 10.1016/j.ijbiomac.2023.123174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 12/20/2022] [Accepted: 01/03/2023] [Indexed: 01/13/2023]
Affiliation(s)
- Anna Stępień
- Department of Engineering and Machinery for Food Industry, Faculty of Food Technology, University of Agriculture, Balicka 122 Street, 30-149 Kraków, Poland.
| | - Karolina Grzyb
- Department of Engineering and Machinery for Food Industry, Faculty of Food Technology, University of Agriculture, Balicka 122 Street, 30-149 Kraków, Poland.
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Garduño-Jiménez AL, Durán-Álvarez JC, Cortés-Lagunes RS, Barrett DA, Gomes RL. Translating wastewater reuse for irrigation from OECD Guidelines: Tramadol sorption and desorption in soil-water matrices. Chemosphere 2022; 305:135031. [PMID: 35605731 DOI: 10.1016/j.chemosphere.2022.135031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/09/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Treated and untreated wastewater is often used for agricultural irrigation and, despite the many benefits of this practice, it poses the risk of biologically active chemical pollutants (such as pharmaceuticals, like tramadol) entering the environment. The partitioning of tramadol between soil/water at environmentally relevant concentrations is important to understand its environmental toxicity. Kinetics and isotherm sorption studies based on the Organisation for Economic Cooperation and Development (OECD) 106 Guideline were undertaken, ensuring comparability to previous studies. Studies were undertaken in three soils of different characteristics using aqueous concentrations of tramadol from 500 ng L-1 (environmentally relevant) to 100 μg L-1 (comparable to previous studies). Two of the soils presented a significantly (p < 0.05) higher sorption at a lower initial tramadol concentration (5000 ng L-1), compared to 20,000 ng L-1. Hysteresis was observed in all studied soils, indicating the accumulation of tramadol. Higher sorption to soils correlated with higher clay content, with soil/water partitioning coefficients (Kd) of 5.5 ± 13.3, 2.5 ± 3.8 and 0.9 ± 3.0 L kg1 for soils with clay contents of 41.9%, 24.5% and 7.4%, respectively. Cation exchange was proposed as the main sorption mechanism for tramadol to soils when the pH was below tramadol's pKa values (9.41 and 13.08). A comparative kinetics study between tramadol in soil/calcium chloride buffer and soil/wastewater effluent demonstrated significantly higher (p < 0.05) tramadol sorption to soil from wastewater effluent. This has the environmental implication that clay soils will be able to retain tramadol from irrigation water, despite the organic content of the irrigation water. Therefore, our studies show that tramadol soil sorption is likely to be higher in agricultural environments reusing wastewater than that predicted from experiments using the OECD 106 Guideline calcium chloride buffer.
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Affiliation(s)
- Andrea-Lorena Garduño-Jiménez
- Food Water Waste Research Group. Faculty of Engineering, University of Nottingham, University Park, Nottinghamshire, NG7 2RD, United Kingdom
| | - Juan Carlos Durán-Álvarez
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, Coyoacan, Ciudad de México, 04510, Mexico
| | - Ruth Silvana Cortés-Lagunes
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, Coyoacan, Ciudad de México, 04510, Mexico
| | - David A Barrett
- Centre for Analytical Bioscience, Advanced Materials and Healthcare Technologies Division, School of Pharmacy University of Nottingham, University Park, Nottinghamshire, NG7 2RD, United Kingdom
| | - Rachel L Gomes
- Food Water Waste Research Group. Faculty of Engineering, University of Nottingham, University Park, Nottinghamshire, NG7 2RD, United Kingdom.
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Marzi M, Towfighi H, Shahbazi K, Farahbakhsh M, Kazemian H. Study of arsenic adsorption in calcareous soils: Competitive effect of phosphate, citrate, oxalate, humic acid and fulvic acid. J Environ Manage 2022; 318:115532. [PMID: 35717699 DOI: 10.1016/j.jenvman.2022.115532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 06/09/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Arsenic (As) bio-availability in the soil is influenced by different organic and inorganic anions. In the present study, the effects of various competitive agents, including phosphate, citrate, oxalate, humic acid (HA), and fulvic acid (FA), on the adsorption of As in calcareous soils were investigated. The results revealed the presence of phosphate, citrate, and oxalate in soil has a significant impact on the arsenic retention (adsorption) in soil which increases the As bio-availability. The negative impact of the competing anions was increased at higher concentrations. The Double Site Langmuir (DSL) isotherm was best fitted to the adsorption data, which indicates that most of the As adsorbed on the low-energy surfaces (non-specific adsorption by oxides, clays, and clay-size calcite). Accordingly, in soil 1, the DSL predicted that, due to phosphate, citrate, and oxalate competition (at a concentration of 10 mM), the adsorption capacity of the high- and low-energy surfaces decreased from 86.2 to 33.5, 82.1 and 61.3 mg/kg and from 663 to 659, 335.8, and 303.5 mg/kg, respectively, Moreover, after addition of phosphate, citrate, and oxalate to the soil-As system, the Langmuir constant of high-energy surfaces decreased from 0.686 to 0.074, 0.261, and 0.301 L/mg, respectively. No regular trend was observed for the Langmuir constant of low-energy surfaces. Similarly, in soils 2, 3, and 4, the adsorption capacities of both high- and low-energy surfaces as well as the Langmuir constant of high-energy surfaces decreased by the addition of phosphate, citrate, and oxalate to the soil-As system. HA and FA did not have a significant effect on the As adsorption behavior. Phosphate, citrate, and oxalate, as interfering oxyanions, increased the As bio-availability in the calcareous soils by decreasing the As adsorption.
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Affiliation(s)
- Mostafa Marzi
- Department of Soil Science, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran.
| | - Hasan Towfighi
- Department of Soil Science, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran
| | - Karim Shahbazi
- Soil and Water Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.
| | - Mohsen Farahbakhsh
- Department of Soil Science, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran
| | - Hossein Kazemian
- Northern Analytical Laboratory Services (NALS), University of Northern British Columbia (UNBC), Prince George, BC, Canada; Chemistry Department, Faculty of Science and Engineering, University of Northern British Columbia, Canada
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10
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Mutavdžić Pavlović D, Tolić Čop K, Barbir V, Gotovuša M, Lukač I, Lozančić A, Runje M. Sorption of cefdinir, memantine, praziquantel and trimethoprim in sediment and soil samples. Environ Sci Pollut Res Int 2022; 29:66841-66857. [PMID: 35513615 DOI: 10.1007/s11356-022-20398-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
The everyday use of various pharmaceuticals to treat humans or animals means that they are increasingly found in the environment. Contamination of the soil can cause the active ingredients to be strongly sorbed to the soil or sediment. In the worst case, they can also be expected to occur in the aquatic environment due to their different polarity. In this study, four drugs from different therapeutic classes (trimetoprim, memantine, cefdinir, praziquantel) were used in dissolved form in two sediment and three soil samples to obtain data that can describe their fate and behavior in the environment. The sorption affinities of the pharmaceuticals were described using linear, Freundlich and Dubinin-Radushkevich sorption isotherms. The highest Kd values were obtained for cefdinir, while memantine and praziquantel tended to be present in water due to their very low sorption coefficients. The studied influence of pH showed a negative trend for memantine and trimetoprim, while an increase in ionic strength resulted in higher Kd values for all drugs. The sorption mechanism for all tested samples was best described by the pseudo-secondary kinetic model (R2 > 0.9999).
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Affiliation(s)
- Dragana Mutavdžić Pavlović
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000, Zagreb, Croatia.
| | - Kristina Tolić Čop
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000, Zagreb, Croatia
| | - Vendi Barbir
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000, Zagreb, Croatia
| | - Mia Gotovuša
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000, Zagreb, Croatia
| | - Ivan Lukač
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000, Zagreb, Croatia
| | - Ana Lozančić
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000, Zagreb, Croatia
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11
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Lopez-Silva M, Agama-Acevedo E, Bello-Perez LA, Alvarez-Ramirez J. Influence of gelatinization degree and octenyl succinic anhydride esterification on the water sorption characteristics of corn starch. Carbohydr Polym 2021; 270:118378. [PMID: 34364622 DOI: 10.1016/j.carbpol.2021.118378] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/11/2021] [Accepted: 06/23/2021] [Indexed: 11/22/2022]
Abstract
The effects of gelatinization degree (GD) and octenyl succinic anhydride (OSA) esterification in the sorption-desorption characteristics of normal corn starch (NCS) were studied. NCS was subjected to different GD (53, 70, and 96%) with an extruder and lyophilized. FTIR analysis revealed that GD increased the hydrated (995/1022 ratio) and decreased the short-range ordered (1022/1047 ratio). The equilibrium sorption-desorption curve of starches was obtained for water activities up to 0.95 and fitted with the Guggenheim-Anderson-de Boer (GAB) model. Gelatinization of corn starch decreased its water sorption capacity, increased its sorption hysteresis and decreased its monolayer moisture content. OSA treatment of NCS reduced the water sorption capacity, hysteresis, and monolayer moisture content as reflected by slight variations of these parameters with the GD. A principal component analysis showed that GD and OSA esterification are mutually independent treatments, which can provide different effects on the water sorption characteristics of NCS.
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12
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Carvalho de Gusmão da Cunha Rabelo AE, Martins Dos Santos Neto S, Paiva Coutinho A, Celso Dantas Antonino A. Sorption of sulfadiazine and flow modeling in an alluvial deposit of a dry riverbed in the Brazilian semiarid. J Contam Hydrol 2021; 241:103818. [PMID: 34118690 DOI: 10.1016/j.jconhyd.2021.103818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 06/12/2023]
Abstract
The Brazilian semiarid region is subjected to irregular rainfall, prolonged droughts, and high temperatures, hampering the surface water accumulation. The water access is restricted to the alluvium in the valleys, which are used for cattle and poultry livestock development. These activities trigger the excessive use of veterinary antibiotics. As a consequence, antibiotics reach sediment surfaces and promote deterioration of groundwater quality. This work aims to evaluate the sorption potential of Sulfadiazine (SDZ) and to understand the dynamics of water transfer and solute transport processes in a typical alluvial deposit of the Capibaribe River, in the Agreste of Pernambuco. The sedimentological characterization was performed by Miall's Code, defining four lithofacies (Scm, Scm,b, Gcm,o, Scm,o). Kinetics and isotherms experiments allowed the analyses of SDZ sorption. Kinetics sorption showed an equilibrium tendency after 40 h and was better described by a second-order model, while isotherm sorption data were better fitted by the Freundlich model. According to the particle size distribution curve, Scm had the highest number of fine particles and organic matter, affecting interaction of SDZ in sediments. Consequently, SDZ sorption was slightly higher in this lithofacies. However, overall, SDZ sorption was low, thereby offering a real risk of groundwater contamination. For further investigation the dynamics of water transfer and solute transport in a heterogeneous alluvial deposit were simulated with the HYDRUS-2D. The structural heterogeneity influenced the spatial distribution of water storage under unsaturated conditions and provided the emergence of preferential flows. The solute dynamic follow a similar behavior of the water flow, due to the low retention of SDZ in the soil. Considering a condition near to saturation, the contrast of hydraulic and transport properties influences simultaneously in the processes of water transfer and solute transport.
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Affiliation(s)
| | | | - Artur Paiva Coutinho
- Agreste Academic Center - Technology Center, Federal University of Pernambuco, Caruaru, Brazil
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13
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Song X, Wu X, Song X, Shi C, Zhang Z. Sorption and desorption of petroleum hydrocarbons on biodegradable and nondegradable microplastics. Chemosphere 2021; 273:128553. [PMID: 33069439 DOI: 10.1016/j.chemosphere.2020.128553] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/22/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
Both biodegradable and nondegradable plastics are widely used. However, their interactions with petroleum hydrocarbons (PHs) have not been sufficiently studied. In this study, a type of biodegradable [polylactic acid (PLA)] and five types of nondegradable microplastics [polyamide (PA), polyethylene (PE), polyethylene terephthalate (PET), polystyrene (PS), and polyvinyl chloride (PVC)] were selected to investigate the sorption and desorption mechanisms of PHs. The sorption kinetics of the six types of microplastics followed a pseudo-second-order kinetics model (R2 ranged from 0.956 to 0.999) and indicated that chemical sorption dominated the sorption process. The key rate-controlling steps of the sorption of PHs on microplastics were intraparticle diffusion and liquid film diffusion. The sorption capacity of PHs on microplastics followed the order of PA > PE > PS > PET > PLA > PVC. The difference in sorption capacity might be due to the crystallinity, and rubber or glass state of the microplastics. In addition, all types of microplastics exhibited reversible sorption without noticeable desorption hysteresis. No obvious differences were observed in the sorption and desorption of PHs between biodegradable and nondegradable microplastics. Both biodegradable and nondegradable microplastics could sorb/desorb PHs and serve as transportation vectors.
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Affiliation(s)
- Xiaowei Song
- Center for Environmental Metrology, National Institute of Metrology, PR, China
| | - Xiaofeng Wu
- State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Center, China
| | - Xiaoping Song
- Center for Environmental Metrology, National Institute of Metrology, PR, China
| | - Cuijie Shi
- Center for Environmental Metrology, National Institute of Metrology, PR, China; College of Chemical Engineering and Environment, China University of Petroleum, China
| | - Zhengdong Zhang
- Center for Environmental Metrology, National Institute of Metrology, PR, China.
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14
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Nie T, Yang X, Chen H, Müller K, Shaheen SM, Rinklebe J, Song H, Xu S, Wu F, Wang H. Effect of biochar aging and co-existence of diethyl phthalate on the mono-sorption of cadmium and zinc to biochar-treated soils. J Hazard Mater 2021; 408:124850. [PMID: 33385726 DOI: 10.1016/j.jhazmat.2020.124850] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
In this study, the influence of the aging process of pig-(PB) and P. orientalis-(POB) derived biochars on the sorption capacity of the biochar-treated soils for cadmium (Cd) and zinc (Zn) with and without the co-existence of diethyl phthalate (DEP) was investigated. Additionally, the surface and internal characteristics of biochars were determined before and after their aging in soils. The PB-treated soil had a higher sorption capacity for Cd2+ and Zn2+ than the POB-treated soil. The sorption capacity of the biochar-treated soils for Cd2+ and Zn2+ increased with biochar application rates. After aging, the abundance of oxygen-containing functional groups on the biochar surface, and the pH and organic carbon content of the biochar-treated soils significantly increased, thereby improving the sorption capacity for Cd2+ and Zn2+. The sorption capacities of biochar-treated soils for Cd2+ and Zn2+ followed the order of 1-month aging > 6-month aging > fresh. The co-existence of DEP enhanced the sorption capacity of the fresh biochar-treated soils for Cd2+ and Zn2+, whereas this enhancing effect disappeared for the aged biochar treatments. Our findings provide insights into the interactions between mixed contaminants in biochar-amended soils and the long-term efficacy of biochar treatments on metal sorption to soils.
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Affiliation(s)
- Tianhong Nie
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, School of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Xing Yang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Hanbo Chen
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Agronomy College, Shenyang Agricultural University, Shenyang 110866, China
| | - Karin Müller
- The New Zealand Institute for Plant & Food Research Limited, Ruakura Research Centre, Private Bag, 3123 Hamilton, New Zealand
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, 21589 Jeddah, Saudi Arabia; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33 516 Kafr El-Sheikh, Egypt
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; University of Sejong, Department of Environment, Energy and Geoinformatics, 98 Gunja-Dong, Guangjin-Gu, Seoul, South Korea
| | - Hocheol Song
- Department of Environment and Energy, Sejong University, Seoul 05006, South Korea
| | - Song Xu
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, School of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China.
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15
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Petitjean M, Isasi JR. Chitosan, xanthan and locust bean gum matrices crosslinked with β-cyclodextrin as green sorbents of aromatic compounds. Int J Biol Macromol 2021; 180:570-577. [PMID: 33753196 DOI: 10.1016/j.ijbiomac.2021.03.098] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 10/21/2022]
Abstract
Three different polysaccharides, xanthan gum, chitosan and locust bean gum, were crosslinked with or without β-cyclodextrin, using citric acid in different ratios, to create 'green' hydrogel matrices. The crosslinking of these polysaccharides was produced through an inexpensive and innocuous solvent-free synthesis process. A favorable swelling behavior of the hydrophilic matrices facilitates the sorption of the solutes tested. Interestingly, the amount of β-cyclodextrin groups is not the only factor to yield the best sorption capability for hydrophobic model molecules: polysaccharides themselves also influence the sorption depending on their characteristic functional groups, the conformation of their chains and, as mentioned above, their degrees of swelling. In order to ascertain the effect of the polysaccharides on the sorption capabilities of a model sorbate (1-naphthol), isotherms using a wide range of solute concentrations were analyzed, and the Hill equation yielded the best fitting results and provided some insight into the mechanisms of interaction.
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Affiliation(s)
- Max Petitjean
- Department of Chemistry, University of Navarra, 31080 Pamplona, Spain
| | - José Ramón Isasi
- Department of Chemistry, University of Navarra, 31080 Pamplona, Spain.
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16
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Abdala DB, Gatiboni LC, Schmitt DE, Mumbach GL, Dall'Orsoletta DJ, Bonfada EB, Veiga M. Phosphorus speciation and iron mineralogy in an oxisol after 11 years of pig slurry application. Sci Total Environ 2020; 743:140487. [PMID: 32653703 DOI: 10.1016/j.scitotenv.2020.140487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/13/2020] [Accepted: 06/22/2020] [Indexed: 06/11/2023]
Abstract
Application of phosphate fertilizers beyond plants needs favors phosphorus (P) accumulation in soils, which may alter its reactivity and chemical speciation. The objective of this study was to assess the changes in P speciation in a Brazilian oxisol that received consecutive applications of varying rates of pig slurry (PS) over 11 years. The soils were treated with PS at rates of 50, 100 and 200 m3 ha-1 year-1, whereas a control plot received P and potassium (K) to replenish the amounts removed by harvest. The soils were sampled and characterized for its P sorption capacity (PSC) as determined by Langmuir sorption isotherms, P partitioning by sequential chemical fractionation (SCF), P chemical speciation via P K-edge XANES and iron (Fe) mineralogy via Fe K-edge EXAFS spectroscopies. Increases in applied PS rates were accompanied by increases in PSC at the 0 to 2.5 and 0 to 10 cm soil layers. P accumulation was observed to be restricted up to the depth of 20 cm, regardless of the PS rate applied. The P K-edge XANES analysis indicated that P accumulation in the topmost soil layers, occurred predominantly associated with Fe-(hydr)oxide minerals. In this soil layer (0 to 2.5 cm), the organic P pool was of particular importance likely due to no-tillage. A dramatic change in Fe mineralogy in the topmost soil layer was observed across the studied soils, with the predominance of hematite in the reference soil and in the control plot, whereas the occurrence of goethite and ferrihydrite was followed by the application of PS.
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Affiliation(s)
- D B Abdala
- Brazilian Synchrotron Light Laboratory, Campinas, São Paulo, Brazil
| | - L C Gatiboni
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, United States of America
| | - D E Schmitt
- Department of Agriculture, Biodiversity and Forests, Federal University of Santa Catarina, Curitibanos, Santa Catarina, Brazil
| | - G L Mumbach
- Department of Soil and Natural Resources, University of Santa Catarina State, Lages, Santa Catarina, Brazil
| | - D J Dall'Orsoletta
- Department of Soil Science and Natural Resources, Santa Catarina State University, Lages, Santa Catarina, Brazil.
| | - E B Bonfada
- MT Fundation - Campo Novo do Parecis, Mato Grosso, Brazil
| | - M Veiga
- Western University of Santa Catarina, Campos Novos, Santa Catarina, Brazil
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17
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Reyer S, Awiszus S, Meissner K, Müller J. High precision laboratory dryer for thin layer and bulk drying with adjustable temperature, relative humidity and velocity of the drying air. HardwareX 2020; 8:e00133. [PMID: 35498261 PMCID: PMC9041234 DOI: 10.1016/j.ohx.2020.e00133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 08/06/2020] [Accepted: 08/12/2020] [Indexed: 06/14/2023]
Abstract
Convective hot air drying is one of the most common post-harvest processes within the agricultural sector and a standard process in the food industry. The technique is used on fruits and vegetables in order to increase their added value or to extend their shelf life. Drying is highly dependent on the condition of the drying air in terms of temperature, relative humidity and velocity and on the thickness of the product layer. The influence of these drying parameters on the drying behavior and quality is product-specific and has to be investigated in laboratory experiments due to the high costs for full-scale evaluation. For this purpose, a high precision laboratory dryer was developed in order to achieve controlled and stable climate conditions during the drying of light bulk material. To avoid temperature drift of the load cell during drying, a temperature-controlled sensor housing was applied. To further stabilize the signal, it was corrected with the instantaneous temperature. The high precision laboratory dryer HPD TF1 could be potentially useful to establish drying curves for defined temperature, relative humidity and velocity of the drying air. Further potential applications are the establishment of sorption isotherms or the determination of diffusion coefficients of various materials.
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18
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Locali-Pereira AR, Lopes NA, Menis-Henrique MEC, Janzantti NS, Nicoletti VR. Modulation of volatile release and antimicrobial properties of pink pepper essential oil by microencapsulation in single- and double-layer structured matrices. Int J Food Microbiol 2020; 335:108890. [PMID: 32971300 DOI: 10.1016/j.ijfoodmicro.2020.108890] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/28/2020] [Accepted: 09/06/2020] [Indexed: 12/14/2022]
Abstract
The bioactivity of essential oils applied in foods to act as natural preservatives can be reduced due to interactions with other components of the food matrix. Microencapsulation can help to increase the functionality of these compounds. In addition, the electrostatic interaction between proteins and polysaccharides can result in double-layered encapsulating structures, ensuring greater protection to essential oils than using only protein as surface active agent. In this work, pink pepper essential oil was microencapsulated by spray drying of single-layer emulsions, stabilized by soy protein isolate (SPI), and of double-layer emulsions, stabilized by soy protein isolate/high methoxyl pectin (SPI/HMP). Pink pepper essential oil showed predominance of α-pinene, β-pinene, β-mircene, δ-3-carene, d-limonene, and germacrene D. Compared to SPI microcapsules, SPI/HMP microcapsules better preserved the total volatile content identified in pure oil, showed less water adsorption during storage at relative humidity ≥75% and improved antimicrobial properties. When stored for 20 days (25 °C/RH = 52.8%), both microcapsules allowed more gradual release of volatiles compared with non-encapsulated oil. Microencapsulation by spray drying did not have negative effects on the antioxidant activity of the encapsulated oil, as the microcapsules showed similar results to the non-encapsulated oil, around 11 μg Trolox/mg of oil. After storage, however, the non-encapsulated oil showed greater losses of its antioxidant activity due to higher rates of volatile release. In the in vitro antimicrobial activity assay, both microcapsules inhibited growth of Staphylococcus aureus, Bacillus subtilis, Listeria monocytogenes and Listeria innocua, although no inhibition was observed against Gram-negative bacteria. When added in milk, both microcapsules reduced bacterial growth, whereas non-encapsulated oil showed no satisfactory inhibition. Faster reduction of microbial growth in milk was observed for SPI/HMP microcapsules. Inhibition results were better for skim milk than for whole milk, suggesting that the interaction of essential oil with other lipids present in milk decreased its bioactivity. Microencapsulation positively affected the functionality of pink pepper essential oil, highlighting its potential for application as a natural preservative in food products.
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Affiliation(s)
- Adilson Roberto Locali-Pereira
- Unesp, São Paulo State University, Institute of Biosciences, Humanities and Exact Sciences, Department of Food Engineering and Technology, Cristóvão Colombo Street, 2265, 15054-000, São José do Rio Preto, SP, Brazil.
| | - Nathalie Almeida Lopes
- Unesp, São Paulo State University, Institute of Biosciences, Humanities and Exact Sciences, Department of Food Engineering and Technology, Cristóvão Colombo Street, 2265, 15054-000, São José do Rio Preto, SP, Brazil
| | - Michele Eliza Cortazzo Menis-Henrique
- Unesp, São Paulo State University, Institute of Biosciences, Humanities and Exact Sciences, Department of Food Engineering and Technology, Cristóvão Colombo Street, 2265, 15054-000, São José do Rio Preto, SP, Brazil
| | - Natália Soares Janzantti
- Unesp, São Paulo State University, Institute of Biosciences, Humanities and Exact Sciences, Department of Food Engineering and Technology, Cristóvão Colombo Street, 2265, 15054-000, São José do Rio Preto, SP, Brazil.
| | - Vânia Regina Nicoletti
- Unesp, São Paulo State University, Institute of Biosciences, Humanities and Exact Sciences, Department of Food Engineering and Technology, Cristóvão Colombo Street, 2265, 15054-000, São José do Rio Preto, SP, Brazil.
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19
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Galhoum AA, Eisa WH, El-Tantawy El-Sayed I, Tolba AA, Shalaby ZM, Mohamady SI, Muhammad SS, Hussien SS, Akashi T, Guibal E. A new route for manufacturing poly(aminophosphonic)-functionalized poly(glycidyl methacrylate)-magnetic nanocomposite - Application to uranium sorption from ore leachate. Environ Pollut 2020; 264:114797. [PMID: 32559874 DOI: 10.1016/j.envpol.2020.114797] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/06/2020] [Accepted: 05/09/2020] [Indexed: 05/16/2023]
Abstract
A high-energy ball milling of magnetite nanoparticles with amino-phosphonic functionalized poly(glycidyl methacrylate) polymer is used for manufacturing a highly efficient magnetic sorbent for U(VI) sorption from aqueous solutions. The Uranyl ions were adsorbed through the binding with amine and phosphonic groups as confirmed by Fourier Transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses. The maximum sorption capacity (up to 270 mg U g-1) occurred at pH = 3-4; Langmuir isotherm well describes the sorption process. Small-size particles allow achieving fast uptake (within ≈90 min of contact); and the kinetic profiles are modeled by the pseudo-second order rate equation. Uranium is successfully desorbed from loaded sorbent using 0.25 M NaHCO3 solution: Sorbent can be recycled with minimal decrease in sorption and desorption efficiency for at least 6 cycles. The sorbent is efficiently used for U(VI) recovery from the acidic leachates of U-bearing ores (after precipitation pre-treatment). Sorption capacity approaches 190 mg U g-1 despite the presence of high concentrations of Fe and Si: the sorbent has a marked preference for U(VI) (confirmed by distribution ratios and selectivity coefficients).
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Affiliation(s)
- Ahmed A Galhoum
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt; Faculty of Bioscience and Applied Chemistry, Hosei University, 3-7-2, Kajino-chou, Koganei, Tokyo, 184-8584, Japan
| | - Wael H Eisa
- Spectroscopy Department, Physics Division, National Research Centre (NRC), Egypt.
| | | | - Ahmad A Tolba
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt
| | - Zeinab M Shalaby
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt
| | - Said I Mohamady
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt
| | - Sally S Muhammad
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt
| | - Shimaa S Hussien
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt
| | - Takaya Akashi
- Faculty of Bioscience and Applied Chemistry, Hosei University, 3-7-2, Kajino-chou, Koganei, Tokyo, 184-8584, Japan
| | - Eric Guibal
- Institut Mines Telecom - Mines Ales, Polymer Composites and Hybrids, PCH, 6 avenue de Clavières, F-30319, Alès cedex, France
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20
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Taha MH, Masoud AM, Khawassek YM, Hussein AEM, Aly HF, Guibal E. Cadmium and iron removal from phosphoric acid using commercial resins for purification purpose. Environ Sci Pollut Res Int 2020; 27:31278-31288. [PMID: 32488709 DOI: 10.1007/s11356-020-09342-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Three commercial resins bearing sulfonic, amino phosphonic, or phosphonic/sulfonic reactive groups have been tested for the removal of iron and cadmium from phosphoric acid solutions. The sorption properties are compared for different experimental conditions such as sorbent dosage (0.5-2.5 g L-1), phosphoric acid concentration (from bi-component solutions, 0.25-2 M), and metal concentrations (i.e., in the range 0.27-2.7 mmol Cd L-1 and 0.54 mmol Fe L-1) with a special attention paid to the impact of the type of reactive groups held on the resins. The sulfonic-based resin (MTC1600H) is more selective for Cd (against Fe), especially at high phosphoric acid concentration and low sorbent dosage, while MTS9500 (aminophosphonic resin) is more selective for Fe removal (regardless of acid concentration and sorbent dosage). Equilibrium is reached within 2-4 h. The resins can be ranked in terms of cumulative sorption capacities according the series: MTC1600H > MTS9570 > MTS 9500. Sulfuric acid (0.5-1 M) can be efficiently used for the desorption of both iron and cadmium for MTC1600H, while for MTS9570 (phosphonic/sulfonic resin) sulfuric acid correctly desorbs Cd (above 96% at 1 M concentration), contrary to Fe (less than 30%). The aminophosphonic resin shows much poorer efficiency in terms of desorption. The sulfonic resin (i.e., MTC1600H) shows much higher sorption capacity, better selectivity, comparable uptake kinetics (about 2 h equilibrium time), and better metal desorption ability (higher than 98% with 1 M acid concentration, regardless of the type of acid). This conclusion is confirmed by the comparison of removal properties in the treatment of different types of industrial phosphoric acid solutions (crude, and pre-treated H3PO4 solutions). The three resins are inefficient for the treatment of crude phosphoric acid, and activated charcoal pre-treatment (MTC1600H reduced cadmium content by 77%). However, MTC1600H allows removing over 93% of Fe and Cd for H3PO4 pre-treated by TBP solvent extraction, while the others show much lower efficiencies (< 53%).
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Affiliation(s)
- Mohamed H Taha
- Nuclear Materials Authority, P.O. Box 530, El Maddi, Cairo, Egypt
| | - Ahmed M Masoud
- Nuclear Materials Authority, P.O. Box 530, El Maddi, Cairo, Egypt
| | | | | | - Hisham F Aly
- Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
| | - Eric Guibal
- Polymers Composites and Hybrids (PCH), IMT Mines Ales, 6 avenue de Clavières, 30319, Alès cedex, France.
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21
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Witczak T, Stępień A, Gumul D, Witczak M, Fiutak G, Zięba T. The influence of the extrusion process on the nutritional composition, physical properties and storage stability of black chokeberry pomaces. Food Chem 2021; 334:127548. [PMID: 32712487 DOI: 10.1016/j.foodchem.2020.127548] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 06/22/2020] [Accepted: 07/07/2020] [Indexed: 12/13/2022]
Abstract
The study examined the influence of the process of extrusion on the physical properties and nutritional composition of black chokeberry pomaces. It has been determined that the extrusion process resulted in a reduction of the content of anthocyanins and fibre, but an increase of the contribution of simple sugars. In order to assess the phase transitions occurring in the products, a state diagram was utilized, which was constructed using the freezing and vitrification curve and values characterizing the conditions of maximum cryoconcentration. The determined values of critical water activity (based on water activity concepts) indicate that pomaces and extrudates retain crispiness in storage under moderate environmental relative humidity conditions. However, in the case of the glass transition concept, the determined values of water activity indicate that products stored in room temperature must be protected against the influence of humidity.
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22
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Li X, Wu B, Zhang Q, Liu Y, Wang J, Xu D, Li F, Ma F, Gu Q. Effects of soil properties on the remediation of diesel-contaminated soil by Triton X-100-aided washing. Environ Sci Pollut Res Int 2020; 27:23323-23330. [PMID: 32337673 DOI: 10.1007/s11356-020-08781-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Although nonionic surfactant is widely used for petroleum-contaminated soil washing, there is no definite conclusion on the main soil factors which determine the removal of petroleum hydrocarbons from the soil. In this study, the influences of soil properties on Triton X-100-aided soil washing were investigated using 12 soils in China. The sorption characteristic of Triton X-100 on soils was described as well. The sorption isotherms of Triton X-100 on 12 typical soils were fitted to the Langmuir adsorption model, and the maximum sorption amount of Triton X-100 (Qmax) varied from 1.54 to 15.15 mg/g. The removal rates of diesel for 12 soils were well fitted to the modified Michaelis-Menten equation, and the maximum removal rate of diesel (φmax) ranged from 62.92 to 90.36%. The correlation analysis indicated that the φmax is significantly correlated with the Qmax. The soil factors affecting diesel removal from soils followed the order of sand content > cation exchange capacity (CEC) > organic matter (OM) content > silt and clay content > SSA >> pH. The prediction model based on CEC, silt content, and pH explained 83.1% of variance of diesel removal from soils. This study will have important implication for successfully remediating organic-contaminated soil using nonionic surfactant-based soil washing.
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Affiliation(s)
- Xiaodong Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Bin Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Qian Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Yuqin Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Jiaqi Wang
- School of Chemical and Environmental Engineering, China University of Mining & Technology, Beijing, 100083, China
| | - Duanping Xu
- College of Environmental Science and Engineering, Liaoning Technical University, Fuxin, 123000, China
| | - Fasheng Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Fujun Ma
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Qingbao Gu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
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23
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Alonso-de-Linaje V, Mangayayam MC, Tobler DJ, Dietmann KM, Espinosa R, Rives V, Dalby KN. Sorption of chlorinated hydrocarbons from synthetic and natural groundwater by organo-hydrotalcites: Towards their applications as remediation nanoparticles. Chemosphere 2019; 236:124369. [PMID: 31323555 DOI: 10.1016/j.chemosphere.2019.124369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/08/2019] [Accepted: 07/13/2019] [Indexed: 06/10/2023]
Abstract
Chlorinated hydrocarbons (CHCs) are recalcitrant compounds frequently found as contaminants in groundwater. Hydrotalcites (HT) have emerged as promising sorbents due to their tunable properties and anion exchange capacity. Here, two types of organo-HT were synthesized, via coprecipitation, by intercalation of two different anionic surfactants, sodium dodecyl sulfate and sodium 1-dodecane sulfonate. These compounds were first characterized by a suite of techniques to quantify surfactant intercalation and to evaluate their physico-chemical properties. Next, the sorption affinity of these organo-HT towards a suite of CHCs was tested under various conditions, including interlayer surfactant type, single and multiple CHCs systems, and different water chemistry (pH, ionic composition). Sorption coefficients (Kd) and organic-matter-normalized partition coefficient (Kom) derived from linear sorption isotherms for individual CHC were inversely correlated to their hydrophobicity in the order of: tetrachloroethylene > tetrachloromethane > trichloroethylene> 1,1,2-trichloroethane > trichloromethane. Kom values were further affected by the organo-HT drying process. In contrast, varying water chemistry and pH, and the co-existence of multiple CHCs had little effect on Kom values, indicating that competition between CHCs and ionic strength have a marginal effect on the sorption affinity. The inverse linear relationship between CHC hydrophobicity and Kom is shown to be a suitable tool to predict organo-HT's sorption efficiency in complex CHCs contaminated groundwaters. Overall, organo-HT's might be used as potential sorbents for ex situ treatment of CHCs in groundwater.
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Affiliation(s)
- Virginia Alonso-de-Linaje
- AECOM Environment, c/ Alfonso XII, 62, 28014, Madrid, Spain; GIR-QUESCAT, Departamento de Química Inorgánica, Universidad de Salamanca, 37008, Salamanca, Spain.
| | - Marco C Mangayayam
- Nano-Science Center, Department of Chemistry, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Dominique J Tobler
- Nano-Science Center, Department of Chemistry, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Karen M Dietmann
- GIR-QUESCAT, Departamento de Química Inorgánica, Universidad de Salamanca, 37008, Salamanca, Spain
| | - Rubén Espinosa
- AECOM Environment, c/ Alfonso XII, 62, 28014, Madrid, Spain
| | - Vicente Rives
- GIR-QUESCAT, Departamento de Química Inorgánica, Universidad de Salamanca, 37008, Salamanca, Spain
| | - Kim N Dalby
- Nano-Science Center, Department of Chemistry, University of Copenhagen, 2100, Copenhagen, Denmark
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24
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Tolić K, Mutavdžić Pavlović D, Židanić D, Runje M. Nitrofurantoin in sediments and soils: Sorption, isotherms and kinetics. Sci Total Environ 2019; 681:9-17. [PMID: 31102820 DOI: 10.1016/j.scitotenv.2019.05.054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/03/2019] [Accepted: 05/05/2019] [Indexed: 06/09/2023]
Abstract
Nitrofurantoin is nitrofuran antibacterial drug that is most used as a veterinary pharmaceutic compound. This compound, as well as other pharmaceuticals can greatly affect the environment, the soil and organisms in it and pollute aquatic ecosystems. Since it has been used for only a few decades, knowledge of their fate and behaviour in the environment is still limited. Because of that, the aim of this study was to experimentally determine the Kd values of nitrofurantoin in seven different natural soil and seven different sediment samples with different physico-chemical properties. Sorption phenomena were described with Linear, Freundlich and Dubinin-Radushkevich sorption isotherms. Obtained sorption coefficients (Kd) ranged from 3.967 to 5.121 mLg-1 for sediment samples and 3.634-43.06 mL g-1 for soil samples. The influence of ionic strength and pH of the nitrofurantoin solution and kinetics of the sorption and desorption process were also investigated. Results show that an increase in ionic strength and pH reduces the values of sorption coefficient while the mechanism of nitrofurantoin sorption is the best described with the kinetic model of pseudo-second order.
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Affiliation(s)
- Kristina Tolić
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Dragana Mutavdžić Pavlović
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia.
| | - Dolores Židanić
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Mislav Runje
- Pliva Croatia TAPI R&D, Prilaz baruna Filipovića 25, 10000 Zagreb, Croatia
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25
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Chen C. Validation of the Component Model for Prediction of Moisture Sorption Isotherms of Two Herbs and other Products. Foods 2019; 8:foods8060191. [PMID: 31159457 PMCID: PMC6616909 DOI: 10.3390/foods8060191] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/28/2019] [Accepted: 05/30/2019] [Indexed: 12/05/2022] Open
Abstract
Sorption isotherm is an essential property for the processing of biological materials. In this study, a component model for the prediction of the sorption isotherm was evaluated. In order to validate this component model, the moisture sorption isotherms for Chrysanthemum morifolium flowers and the orchid Anoectochilus formosanus Hayata were determined. The sorption isotherm was measured by using the equilibrium relative humidity technique for five temperatures. Seven sorption isotherm models were selected with four quantitative criteria and residual plots to evaluate fitting ability and prediction performance for these products. The results indicated that the sorption temperature did not significantly affect the adsorption isotherm. The Caurie and Henderson equations could be used for C. morifolium flowers and A. formosanus Hayata. The isotherm data of raw bamboo, elecampe and three varieties of corn kernels from the literature were adopted to validate the component model. Comparing with the predicted values of component values and actual isotherm moisture, the component model has good predictive ability at the aw range smaller than 0.7. Considering the practical application, the aw range below 0.7 is the main range for the processing of agricultural products, and the predictive values of this component model could be helpful for food engineering and for the food industry.
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Affiliation(s)
- Chiachung Chen
- Department of Bio-industrial Mechatronics Engineering, National Chung Hsing University, 250 Kuokuang Road, Taichung 4022, Taiwan.
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26
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Hajji S, Montes-Hernandez G, Sarret G, Tordo A, Morin G, Ona-Nguema G, Bureau S, Turki T, Mzoughi N. Arsenite and chromate sequestration onto ferrihydrite, siderite and goethite nanostructured minerals: Isotherms from flow-through reactor experiments and XAS measurements. J Hazard Mater 2019; 362:358-367. [PMID: 30243259 DOI: 10.1016/j.jhazmat.2018.09.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 09/01/2018] [Accepted: 09/11/2018] [Indexed: 06/08/2023]
Abstract
Sorption isotherms remain a major tool to describe and predict the mobility of pollutants in natural and anthropogenic environments, but they are typically determined by independent batch experiments. In the present study, the sequestration of As(III), Cr(VI) and competitive As(III)-Cr(VI) on/in 6L-ferrihydrite, siderite and goethite nanostructured minerals was reinvestigated using stirred flow-through reactor experiments. Herein, sorption isotherms were particularly determined from breakthrough curves for inert and reactive tracers monitored simultaneously in a single percolation experiment. In complement, X-ray absorption spectroscopy (XAS) was used to identify As sorption sites on 6L-ferrihydrite and goethite. As expected, the minerals have high potential to remove As and Cr from water (siderite = ferrihydrite (about 60 mg/g) > goethite (20 mg/g)). As and Cr sorption isotherms were modelled with a Langmuir model, and with a sigmoidal Hill model in the case of the competitive sorption. XAS measurements have revealed that As(III) was partially oxidized (up to 22%) in the competitive system with chromate oxyanion Cr(VI). As(III) sorbed on ferrihydrite and goethite adopted edge-sharing and corner sharing complex geometries. Nowadays, a new class of adsorbing phases is being developed for wastewater treatment, including engineered nanostructured materials and nanocomposites. The use of flow through reactor experiments as a high throughput method, combined with XAS, should be considered as efficient screening methods to test their sorbing properties on various contaminants.
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Affiliation(s)
- S Hajji
- Natural Water Treatment Laboratory, Water Researches and Technologies Center (CERTE), Technopark of Borj-Cedria, PO Box 273, Soliman, 8020, Tunisia.
| | - G Montes-Hernandez
- University Grenoble Alpes, CNRS, ISTerre, CS 40700, F-38058, Grenoble Cedex 9, France.
| | - G Sarret
- University Grenoble Alpes, CNRS, ISTerre, CS 40700, F-38058, Grenoble Cedex 9, France
| | - A Tordo
- University Grenoble Alpes, CNRS, ISTerre, CS 40700, F-38058, Grenoble Cedex 9, France
| | - G Morin
- IMPMC, CNRS-Paris6-UPMC, F-75252, Paris, France
| | | | - S Bureau
- University Grenoble Alpes, CNRS, ISTerre, CS 40700, F-38058, Grenoble Cedex 9, France
| | - T Turki
- Natural Water Treatment Laboratory, Water Researches and Technologies Center (CERTE), Technopark of Borj-Cedria, PO Box 273, Soliman, 8020, Tunisia
| | - N Mzoughi
- High Institute of Sciences and Technology of Environment of Borj Cedria, University of Carthage, Tunisia
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27
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Gonzalez-Rodriguez S, Fernandez-Marcos ML. Phosphate sorption and desorption by two contrasting volcanic soils of equatorial Africa. PeerJ 2018; 6:e5820. [PMID: 30370187 PMCID: PMC6202954 DOI: 10.7717/peerj.5820] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 09/19/2018] [Indexed: 11/20/2022] Open
Abstract
Volcanic soils cover 1% of the Earth's surface but support 10% of the world's population. They are among the most fertile soils in the world, due to their excellent physical properties and richness in available nutrients. The major limiting factor for plant growth in volcanic soils is phosphate fixation, which is mainly attributable to active species of aluminium and iron. The sorption and desorption of phosphate is studied on the surface horizons of two African agricultural soils, a silandic Andosol (Rwanda) and a vitric Andosol (São Tomé and Principe). Both soils are slightly acid. The silandic Andosol is rich in active aluminium forms, while the vitric Andosol has high amounts of crystalline iron and aluminium oxides. Sorption isotherms were determined by equilibrating at 293K soil samples with phosphate solutions of concentrations between 0 and 100 mg P L-1 in NaNO3; phosphate was determined by visible spectrophotometry in the equilibrium solution. To study desorption, the soil samples from the sorption experiment were equilibrated with 0.02 M NaNO3. The isotherms were adjusted to mathematical models. In almost all the concentration range, the adsorption of phosphate by the silandic Andosol was greater than 90% of the amount added, being lower in the vitric Andosol but always higher than 65%. The high sorption by the silandic Andosol is attributed to its richness in non-crystalline Fe and Al, while in the vitric Andosol crystalline iron species seem to play a relevant role in the adsorption. The sorption isotherms of both soils fitted to the Temkin model, the adjustment to the Langmuir or Freundlich models being unsatisfactory; throughout the range studied, the sorption increases with increasing phosphorus concentration, a maximum sorption is not predictable (as occurs when the sorption is adjusted to the Langmuir model). For an added P concentration of 100 mg L-1 (3.2 mmol L-1), the sorption is 47.7 µmol P g-1 in the silandic Andosol and 41.6 µmol P g-1 in the vitric Andosol. The desorption is low and the comparison of the sorption and desorption isotherms reveals a pronounced hysteresis, that is, the irreversibility of the sorption. The high phosphate sorption and its irreversibility are comparable to those published for other volcanic soils with high contents of allophane, active aluminium and free iron. The strong phosphate adsorption is a serious limiting factor for plant growth, which requires a careful management of phosphorus fertilization.
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Affiliation(s)
- Sara Gonzalez-Rodriguez
- Department of Soil Science and Agricultural Chemistry, Universidad de Santiago de Compostela, Lugo, Spain
| | - Maria Luisa Fernandez-Marcos
- Department of Soil Science and Agricultural Chemistry, Universidad de Santiago de Compostela, Lugo, Spain.,Institute of Agricultural Biodiversity and Rural Development, University of Santiago de Compostela, Lugo, Spain
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28
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Udoetok IA, Wilson LD, Headley JV. Ultra-sonication assisted cross-linking of cellulose polymers. Ultrason Sonochem 2018; 42:567-576. [PMID: 29429704 DOI: 10.1016/j.ultsonch.2017.12.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/09/2017] [Accepted: 12/10/2017] [Indexed: 05/20/2023]
Abstract
Cross-linked cellulose-epichlorohydrin polymers were synthesized by a conventional heating with stirring (C-EP heating) and a parallel process using ultra-sonication (C-EP sonication) in the presence of aqueous ammonia. Structural characterization of modified cellulose was carried out using FTIR/13C solid state NMR spectroscopy and thermal methods (DSC and TGA). Evidence of products with variable textural properties and morphology was supported by nitrogen gas adsorption, solvent swelling, and microscopy (SEM, TEM) results. C-EP sonication possess greater cross-linker content judging by the loss of the cellulose fibril structure which was facilitated by acoustic cavitation effects due to ultra-sonication. Equilibrium sorption studies in aqueous solution with 2-naphthoxy acetic acid (NAA) revealed that C-EP heating had slightly greater sorption capacity than C-EP sonication at alkaline pH. By contrast, C-EP sonication had greater uptake of NAA at acidic pH. Kinetic uptake studies at pH 3 is described by the pseudo-second order model, where the surface sites of C-EP heating became saturated within ca. 75 min; whereas, ca. 350 min occurred for C-EP sonication. This study demonstrates that the yield of sonication assisted cross-linking of cellulose is greater with improved adsorption properties. The study also reveals the utility of sonication assisted synthesis for the valorization and utilization of cellulose modified materials.
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Affiliation(s)
- Inimfon A Udoetok
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada
| | - Lee D Wilson
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada.
| | - John V Headley
- Water Science and Technology Directorate, Environment and Climate Change Canada, 11 Innovation Boulevard, Saskatoon, Saskatchewan S7N 3H5, Canada
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Arco-Lázaro E, Pardo T, Clemente R, Bernal MP. Arsenic adsorption and plant availability in an agricultural soil irrigated with As-rich water: Effects of Fe-rich amendments and organic and inorganic fertilisers. J Environ Manage 2018; 209:262-272. [PMID: 29306143 DOI: 10.1016/j.jenvman.2017.12.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 12/11/2017] [Accepted: 12/17/2017] [Indexed: 06/07/2023]
Abstract
The use of As-rich water for irrigation in agricultural soils may result in As accumulation in soil and crops, with the consequent risk of its entry into the food chain. The effectiveness of three different Fe-based materials (a commercial iron oxide (Bayoxide®), lamination slag (a by-product of the hot rolling of steel) and a commercial red mud derivative (ViroBind™)) used as soil amendments to minimise the impact of irrigation with As-rich water in an agricultural soil-plant system was evaluated in a pot experiment. Simultaneously, the influence of organic and inorganic fertilisation (olive oil mill waste compost versus NPK fertiliser) on the effectiveness of iron oxide in As adsorption processes was also assessed. The As adsorption capacity of the amendments was determined in a preliminary batch experiment using sorption isotherms. Then, a pot experiment was carried out in a growth chamber using an agricultural soil (arenosol) from Segovia province (central Spain), amended with the different materials, in which Lactuca sativa (lettuce) was grown for two months. The As adsorption capacity was higher in the commercial iron oxide and in the red mud derivative, which fitted the Freundlich model (no saturation), than in the lamination slag, which fitted the Langmuir model (limited adsorption). All the materials decreased the pore water As concentration compared to the control (by 29-80%), but only iron oxide reduced As availability in the soil, and none of the amendments decreased the As concentration in plant leaves. The combination of iron oxide and compost did not significantly improve plant growth, but increased nutrients (N, K, Ca, Na and Mg) concentrations and availability in the soil and their concentration in the plants, relative to the other treatments and the control. Therefore, this seems to be a viable option to prevent As leaching and improve the plant nutritional status.
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Affiliation(s)
- Elena Arco-Lázaro
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, PO Box 164, 30100 Murcia, Spain
| | - Tania Pardo
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, PO Box 164, 30100 Murcia, Spain.
| | - Rafael Clemente
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, PO Box 164, 30100 Murcia, Spain
| | - Ma Pilar Bernal
- Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, PO Box 164, 30100 Murcia, Spain
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30
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Diquattro S, Garau G, Lauro GP, Silvetti M, Deiana S, Castaldi P. Municipal solid waste compost as a novel sorbent for antimony(V): adsorption and release trials at acidic pH. Environ Sci Pollut Res Int 2018; 25:5603-5615. [PMID: 29222659 DOI: 10.1007/s11356-017-0933-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 12/03/2017] [Indexed: 05/04/2023]
Abstract
The ability of two municipal solid waste composts (MSW-Cs) to sorb antimony(V) in acidic conditions (pH 4.5) was investigated. Sorption isotherms and kinetics showed that both MSW-Cs could sorb antimony(V), even if in different amounts (~ 0.18 and 0.24 mmol g-1 of Sb(V) by MSW-C1 and MSW-C2, respectively). These differences were ascribed to the chemical composition of composts, as well as to the total acidity of their humic substances. The Sb(V) sorption by both MSW-Cs followed a pseudo-second-order kinetic model, while the sorption isotherms data fitted the Freundlich model better than the Langmuir one. The humic acids extracted from composts contributed to 4.26 and 8.24% of Sb(V) sorption by MSW-C1 and MSW-C2 respectively. SEM-EDX spectra of the MSW-C+Sb(V) systems showed a certain association of Ca(II) with Sb(V), while sequential extraction procedures indicated that more than 80% of the Sb(V) sorbed was strongly retained by MSW-Cs. On the other hand, treatment with oxalic acid at pH 4.5 favored the release of more than 98 and 65% of the Sb(V) sorbed by MSW-C1 and MSW-C2 respectively, supporting a possible role of calcium in Sb(V) retention. The results from this study suggest that MSW-Cs could be used as amendments for the in-situ immobilization of Sb(V) in acidic-polluted soils.
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Affiliation(s)
- Stefania Diquattro
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100, Sassari, Italy
| | - Giovanni Garau
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100, Sassari, Italy.
| | - Gian Paolo Lauro
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100, Sassari, Italy
| | - Margherita Silvetti
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100, Sassari, Italy
| | - Salvatore Deiana
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100, Sassari, Italy
| | - Paola Castaldi
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100, Sassari, Italy.
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Giel V, Perchacz M, Kredatusová J, Pientka Z. Gas Transport Properties of Polybenzimidazole and Poly(Phenylene Oxide) Mixed Matrix Membranes Incorporated with PDA-Functionalised Titanate Nanotubes. Nanoscale Res Lett 2017; 12:3. [PMID: 28050877 PMCID: PMC5215249 DOI: 10.1186/s11671-016-1613-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 09/05/2016] [Indexed: 06/06/2023]
Abstract
Functionalised titanate nanotubes (TiNTs) were incorporated to poly(5,5-bisbenzimidazole-2,2-diyl-1,3-phenylene) (PBI) or poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) for improving the interfacial compatibility between the polymer matrix and inorganic material and for altering the gas separation performance of the neat polymer membranes. Functionalisation consisted in oxidative polymerisation of dopamine-hydrochloride on the surface of non-functionalised TiNTs. Transmission electron microscopy (TEM) confirmed that a thin polydopamine (PDA) layer was created on the surface of TiNTs. 1.5, 3, 6, and 9 wt.% of PDA-functionalised TiNTs (PDA-TiNTs) were dispersed to each type of polymer matrix to create so-called mixed matrix membranes (MMMs). Infrared spectroscopy confirmed that -OH and -NH groups exist on the surface of PDA-TiNTs and that the nanotubes interact via H-bonding with PBI but not with PPO. The distribution of PDA-TiNTs in the MMMs was to some extent uniform as scanning electron microscope (SEM) studies showed. Beyond, PDA-TiNTs exhibit positive effect on gas transport properties, resulting in increased selectivities of MMMs. The addition of nanotubes caused a decrease in permeabilities but an increase in selectivities. It is shown that 9 wt.% of PDA-TiNTs in PBI gave a rise to CO2/N2 and CO2/CH4 selectivities of 112 and 63 %, respectively. In case of PPO-PDA-TiNT MMMs, CO2/N2 and CO2/CH4 selectivity increased about 25 and 17 %, respectively. Sorption measurement showed that the presence of PDA-TiNTs in PBI caused an increase in CO2 sorption, whereas the influence on other gases is less noticeable.
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Affiliation(s)
- V. Giel
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 16206 Prague 6, Czech Republic
| | - M. Perchacz
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 16206 Prague 6, Czech Republic
| | - J. Kredatusová
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 16206 Prague 6, Czech Republic
| | - Z. Pientka
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 16206 Prague 6, Czech Republic
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Gros P, Ahmed A, Kühn O, Leinweber P. Glyphosate binding in soil as revealed by sorption experiments and quantum-chemical modeling. Sci Total Environ 2017; 586:527-535. [PMID: 28236479 DOI: 10.1016/j.scitotenv.2017.02.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/01/2017] [Accepted: 02/01/2017] [Indexed: 06/06/2023]
Abstract
The herbicide glyphosate (GLP) is supposed to be rapidly degraded or adsorbed strongly by soil solids but findings in soil years after application and concentrations in waters above legal limits question a harmless disappearance. Therefore, we conducted batch sorption experiments with 23 thoroughly characterized arable surface soils, correlated isotherm coefficients with numerous inorganic and organic soil parameters, and investigated GLP-SOM-complexes by quantum-chemical modeling. The Freundlich sorption model yielded the best fits, and coefficients Kf and nf were correlated positively with the contents of clay/silt. The contents of organic C (Corg) and of the mass-spectrometrically determined SOM-compound classes carbohydrates, phenols/lignin monomers, lignin dimers, lipids, alkylaromatics, non-amide N and amides and sterols all were strongly positively correlated with the Freundlich coefficients. Quantum-chemical modeling showed that both GLP phosphonic and carboxylic functional groups interact similarly with the polar SOM functional groups via H-bond formation but the GLP phosphonic moiety is most important in the GLP-SOM-interaction. Moreover, the interaction mechanism between GLP and every modeled SOM-compound class was explored indicating the importance of the polarity, electron density, and site of attack of the SOM fragments in the GLP-SOM-interaction. Partial binding energies were combined to a total binding energy (EB,tot) of GLP to the SOM, considering the mass spectrometrically quantified compound classes for each individual soil sample. The resulting strongly positive correlation between the EB,tot and the Corg provided compelling new experimental-theoretical evidence for the importance of SOM on the GLP binding and its behavior in the environment. In conclusion, the multitude of binding mechanisms to clay minerals and organic colloids make the occurrence of free GLP rather unlikely but a leaching of GLP complexes via preferential flow path through soil and transfer to waterways rather likely.
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Affiliation(s)
- Peter Gros
- University of Rostock, Soil Science, Justus-von-Liebig-Weg 6, D-18059 Rostock, Germany.
| | - Ashour Ahmed
- University of Rostock, Institute of Physics, Albert-Einstein-Str. 23-24, D-18051 Rostock, Germany; University of Cairo, Faculty of Science, Department of Chemistry, 12613 Giza, Egypt.
| | - Oliver Kühn
- University of Rostock, Institute of Physics, Albert-Einstein-Str. 23-24, D-18051 Rostock, Germany.
| | - Peter Leinweber
- University of Rostock, Soil Science, Justus-von-Liebig-Weg 6, D-18059 Rostock, Germany.
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Silvetti M, Garau G, Demurtas D, Marceddu S, Deiana S, Castaldi P. Influence of lead in the sorption of arsenate by municipal solid waste composts: metal(loid) retention, desorption and phytotoxicity. Bioresour Technol 2017; 225:90-98. [PMID: 27886634 DOI: 10.1016/j.biortech.2016.11.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/10/2016] [Accepted: 11/13/2016] [Indexed: 06/06/2023]
Abstract
The ability of two municipal solid waste composts (MSW-C) to sorb As(V) in the presence of Pb(II) and in acidic conditions was investigated. Sorption isotherms and kinetics showed that both MSW-C were able to sorb As(V) in a similar way (∼0.24mmolg-1 MSW-C), but only when Pb(II) was present (0.45mmolL-1). The concomitant sorption of Pb(II) by both MSW-C (∼0.40mmolg-1) suggested that the metal cation was likely acting as bridging element between the negatively charged functional groups of composts and As(V). SEM-EDX analysis of the MSW-C+Pb(II)+As(V) systems supported the association between Pb(II) and As(V), while sequential extraction procedures and organic acids treatment showed that As(V) was strongly retained by MSW-C+Pb(II) and suggested the presence of different interaction types between As(V) and Pb(II). Plant growth experiments highlighted the key role of Pb(II) in the reduction of As(V)-phytotoxicity for triticale plants (×Triticosecale Wittm.) in the presence of MSW-C.
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Affiliation(s)
- Margherita Silvetti
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy
| | - Giovanni Garau
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy
| | - Daniela Demurtas
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy
| | - Salvatore Marceddu
- Istituto CNR di Scienze delle Produzioni Alimentari, UOS Sassari, Traversa La Crucca 3, Sassari, Italy
| | - Salvatore Deiana
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy
| | - Paola Castaldi
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy.
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Micháleková-Richveisová B, Frišták V, Pipíška M, Ďuriška L, Moreno-Jimenez E, Soja G. Iron-impregnated biochars as effective phosphate sorption materials. Environ Sci Pollut Res Int 2017; 24:463-475. [PMID: 27730505 DOI: 10.1007/s11356-016-7820-9] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 10/03/2016] [Indexed: 06/06/2023]
Abstract
A new post-treatment method was applied for improving the sorption efficiency of biochar-based sorbents for anionic forms of phosphorus. The Fe-impregnation through direct hydrolysis of Fe(NO3)3 was used to produce impregnated corn cob- (IBC A), garden wood waste- (IBC B), and wood chip-derived biochars (IBC C). The qualitative and quantitative effects of impregnation process on biochars were confirmed by SEM-EDX, FTIR, and ICP-MS. The analyses revealed increased concentrations of N and thus potential NO3- participation in the phosphate sorption process. Biochar surface area showed a significant decrease after the impregnation process due to the filling of micro- and mesopores with Fe maximum sorption capacity (Q max) increased by a factor of 12-50. The sorption processes of phosphates by IBC A, IBC B, and IBC C were dependent on pH, initial concentration, and time. Speciation analysis and pH-study confirmed the range of pH 4.5-5.5 as optimum values at which most of phosphorus is present in form of mononuclear H2PO4-. Batch sorption experiments showed a significant increase in the sorption capacity for phosphates by Fe impregnation of biochar as well as effectiveness and stability of this treatment. These findings indicate an option for utilizing engineered biochars as tools for the recovery of phosphorus from the aquatic environment.
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Affiliation(s)
- Barbora Micháleková-Richveisová
- Department of Ecochemistry and Radioecology, University of SS. Cyril and Methodius, J. Herdu 2, Trnava, 917 01, Slovak Republic
| | - Vladimír Frišták
- Energy Department, Austrian Institute of Technology GmbH, 3430, Tulln, Austria.
| | - Martin Pipíška
- Department of Chemistry, Trnava University, Trnava, 91701, Slovak Republic
| | - Libor Ďuriška
- Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, Paulínska 16, Trnava, 917 24, Slovak Republic
| | - Eduardo Moreno-Jimenez
- Departamento de Química Agrícola y Bromatología, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Gerhard Soja
- Energy Department, Austrian Institute of Technology GmbH, 3430, Tulln, Austria
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Tolba AA, Mohamady SI, Hussin SS, Akashi T, Sakai Y, Galhoum AA, Guibal E. Synthesis and characterization of poly(carboxymethyl)-cellulose for enhanced La(III) sorption. Carbohydr Polym 2016; 157:1809-1820. [PMID: 27987899 DOI: 10.1016/j.carbpol.2016.11.064] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/16/2016] [Accepted: 11/22/2016] [Indexed: 11/26/2022]
Abstract
The grafting of amino and carboxylic acid groups on cellulose increased La(III) sorption efficiency of cellulose: maximum sorption capacity increased from 38mgLag-1 for cellulose to 101 and 170mgLag-1 for amino derivative (PAC) and amino-carboxylic derivative (PCMC). Langmuir equation successfully fits sorption isotherms while uptake kinetics are effectively modeled using the pseudo-first order rate equation (though resistance to intraparticle diffusion plays a significant role in the control of metal recovery). Uptake equilibrium occurred within 150-180min. The thermodynamic study shows that the reaction is spontaneous, endothermic and entropic. Nitric acid solutions (0.5M concentration) can be efficiently used for metal recovery and sorbent can be recycled for at least 5 cycles with limited decrease in sorption performance for the three sorbents. The materials were characterized by elemental analysis, acid-base titration, FTIR spectrometry, x-ray diffraction analysis, X-ray photoelectron spectroscopy, SEM-EDX analysis and also by TGA.
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Affiliation(s)
- Ahmad A Tolba
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt.
| | - Said I Mohamady
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt.
| | - Shimaa S Hussin
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt.
| | - Takaya Akashi
- Hosei University, Faculty of Bioscience and Applied Chemistry, Japan.
| | - Yuka Sakai
- Hosei University, Faculty of Bioscience and Applied Chemistry, Japan.
| | - Ahmed A Galhoum
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt; Hosei University, Faculty of Bioscience and Applied Chemistry, Japan; Ecole des mines d'Alès, Centre des Matériaux des Mines d'Alès, 6, Avenue de Clavières, F-30319 Alès Cedex, France.
| | - Eric Guibal
- Ecole des mines d'Alès, Centre des Matériaux des Mines d'Alès, 6, Avenue de Clavières, F-30319 Alès Cedex, France.
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Al-Khazrajy OSA, Boxall ABA. Impacts of compound properties and sediment characteristics on the sorption behaviour of pharmaceuticals in aquatic systems. J Hazard Mater 2016; 317:198-209. [PMID: 27270139 DOI: 10.1016/j.jhazmat.2016.05.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/29/2016] [Accepted: 05/20/2016] [Indexed: 05/13/2023]
Abstract
Sorption is a key factor in determining the persistence, attenuation and bioavailability of sediment-associated contaminants. However, our understanding of the sorption behaviour of pharmaceuticals in sediments is poor. In this study, we investigated the sorption behaviour of a diverse set of pharmaceuticals in a range sediment types. Sorption affinity of pharmaceuticals for all sediments was found to increase in the order mefenamic acid<cimetidine<atenolol<amitriptyline<diltiazem. Comparison of the experimental observations with predictions from an existing model for estimating sorption revealed the model worked poorly for the study pharmaceuticals. Multiple linear regression analysis was therefore used to develop new models for estimating sorption of individual pharmaceuticals based on sediment properties. The analyses indicated that sorption is related to properties such as Log Dow of a compound in the sediment (lipophilicity corrected for the sediment pH), cation exchange capacity, clay%, organic carbon content and exchangeable Ca(2+), although, with the exception of atenolol, robust relationships between sediment properties and sorption were not obtained. Overall, the results demonstrate how complex the processes are that drive the sorption of pharmaceuticals in sediments and highlight the need for generation of further experimental data and further model development work.
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Affiliation(s)
- Omar S A Al-Khazrajy
- Environment Department, University of York, Heslington, Wentworth Way, York, YO10 5NG, UK
| | - Alistair B A Boxall
- Environment Department, University of York, Heslington, Wentworth Way, York, YO10 5NG, UK.
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37
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Czech B. The interactions of UV and/or H2O2 treated CNTOH and CNTCOOH with environmental fulvic acids. Environ Res 2016; 150:173-181. [PMID: 27290658 DOI: 10.1016/j.envres.2016.05.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 05/19/2016] [Accepted: 05/21/2016] [Indexed: 06/06/2023]
Abstract
The fate of carbon nanotubes (CNT) in the environment will be governed by the presence of natural dissolved organic matter (DOM). Many studies indicate that CNT create stabilized suspensions in the presence of DOM. Easier transport in the environment may indicate their greater hazard. However these studies describe the interactions of DOM with as produced CNT. In the present studies the interactions of UV and/or H2O2 treated wastewater containing CNTOH or CNTCOOH with the naturally occurred fulvic acids (FA) were presented. FA sorption, both kinetics and mechanism, were described using batch regime. The sorption of FA followed a pseudo-second order kinetics and was described with the highest accuracy by Langmuir or Dubinin-Radushkevich model for CNTOHs and Langmuir, Temkin or Dubinin-Radushkevich - for CNTCOOHs. The mechanism of FA sorption onto CNTOHs was ascribed to π-π, heterogeneous and electrostatic interactions. The π-π and electrostatic interactions can the mostly defined FA adsorption onto CNTCOOHs. The parameters affecting FA sorption were combination of porosity and dispersity.
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Affiliation(s)
- Bożena Czech
- Department of Environmental Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Pl. M. Cure-Skłodowskiej 3, 20-031 Lublin, Poland.
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38
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Arco-Lázaro E, Agudo I, Clemente R, Bernal MP. Arsenic(V) adsorption-desorption in agricultural and mine soils: Effects of organic matter addition and phosphate competition. Environ Pollut 2016; 216:71-79. [PMID: 27239690 DOI: 10.1016/j.envpol.2016.05.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/13/2016] [Accepted: 05/19/2016] [Indexed: 05/26/2023]
Abstract
High total and bioavailable concentrations of As in soils represent a potential risk for groundwater contamination and entry in the food chain. The use of organic amendments in the remediation of As-contaminated soils has been found to produce distinct effects on the solubility of As in the soil. Therefore, knowledge about As adsorption-desorption processes that govern its solubility in soil is of relevance in order to predict the behaviour of this element during these processes. In this paper, the objective was to determine As adsorption and desorption in four different soils, with and without compost addition, and also in competition with phosphate, through the determination of sorption isotherms. Batch experiments were carried out using three soils affected differently by previous mining activity of the Sierra Minera of La Unión-Cartagena (SE Spain) and an agricultural soil from Segovia province (central Spain). Adsorption was higher in the mining soils (and highest in the acidic one) than in the agricultural soils, although the latter were not affected negatively by organic matter or phosphate competition for sorption sites. The results show that As adsorption in most soils, both with and without compost, fitted better a multimolecular layer model (Freundlich), whereas As adsorption in competition with P fitted a monolayer model (Langmuir). Moreover, the use of compost and phosphate reduced the adsorption of As in the mining soils, while in the agricultural soils compost increased their low adsorption capacity. Therefore, the use of compost can be a good option to favour As immobilisation in soils of low adsorption, but knowledge of the soil composition will be crucial to predict the effects of organic amendments on As solubility in soils and its associated environmental risk.
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Affiliation(s)
- Elena Arco-Lázaro
- Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafología y Biología Aplicada del Segura-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
| | - Inés Agudo
- Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafología y Biología Aplicada del Segura-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
| | - Rafael Clemente
- Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafología y Biología Aplicada del Segura-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain.
| | - M Pilar Bernal
- Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafología y Biología Aplicada del Segura-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
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Simha HV, Pushpadass HA, Franklin ME, Kumar PA, Manimala K. Soft computing modelling of moisture sorption isotherms of milk-foxtail millet powder and determination of thermodynamic properties. J Food Sci Technol 2016; 53:2705-14. [PMID: 27478226 DOI: 10.1007/s13197-016-2242-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/08/2016] [Accepted: 05/01/2016] [Indexed: 10/21/2022]
Abstract
Moisture sorption isotherms of spray-dried milk-foxtail millet powder were determined at 10, 25 and 40 °C. Sorption data was fitted using classical and soft-computing approaches. The isotherms were of type II, and equilibrium moisture content (EMC) was temperature dependent. The BET monolayer moisture content decreased from 3.30 to 2.67 % as temperature increased from 10 to 40 °C. Amongst the classical models, Ferro-Fontan gave the best fit of EMC-aw data. However, the Sugeno-type adaptive neuro-fuzzy inference system (ANFIS) with generalized bell-shaped membership function performed better than artificial neural network and classical models with RMSE as low as 0.0099. The isosteric heat of sorption decreased from 150.32 kJ mol(-1) at 1 % moisture content to 44.11 kJ mol(-1) at 15 % moisture. The enthalpy-entropy compensation theory was validated, and the isokinetic and harmonic mean temperatures were determined as 333.1 and 297.5 K, respectively.
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Ahmed MB, Zhou JL, Ngo HH, Guo W, Chen M. Progress in the preparation and application of modified biochar for improved contaminant removal from water and wastewater. Bioresour Technol 2016; 214:836-851. [PMID: 27241534 DOI: 10.1016/j.biortech.2016.05.057] [Citation(s) in RCA: 304] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/15/2016] [Accepted: 05/18/2016] [Indexed: 05/20/2023]
Abstract
Modified biochar (BC) is reviewed in its preparation, functionality, applications and regeneration. The nature of precursor materials, preparatory conditions and modification methods are key factors influencing BC properties. Steam activation is unsuitable for improving BC surface functionality compared with chemical modifications. Alkali-treated BC possesses the highest surface functionality. Both alkali modified BC and nanomaterial impregnated BC composites are highly favorable for enhancing the adsorption of different contaminants from wastewater. Acidic treatment provides more oxygenated functional groups on BC surfaces. The Langmuir isotherm model provides the best fit for sorption equilibria of heavy metals and anionic contaminants, while the Freundlich isotherm model is the best fit for emerging contaminants. The pseudo 2(nd) order is the most appropriate model of sorption kinetics for all contaminants. Future research should focus on industry-scale applications and hybrid systems for contaminant removal due to scarcity of data.
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Affiliation(s)
- Mohammad Boshir Ahmed
- School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Broadway, NSW 2007, Australia
| | - John L Zhou
- School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Broadway, NSW 2007, Australia.
| | - Huu H Ngo
- School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Broadway, NSW 2007, Australia
| | - Wenshan Guo
- School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Broadway, NSW 2007, Australia
| | - Mengfang Chen
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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Ahmed AA, Thiele-Bruhn S, Leinweber P, Kühn O. Towards a molecular level understanding of the sulfanilamide-soil organic matter-interaction. Sci Total Environ 2016; 559:347-355. [PMID: 27088516 DOI: 10.1016/j.scitotenv.2016.03.136] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/02/2016] [Accepted: 03/18/2016] [Indexed: 06/05/2023]
Abstract
Sorption experiments of sulfanilamide (SAA) on well-characterized samples of soil size-fractions were combined with the modeling of SAA-soil-interaction via quantum chemical calculations. Freundlich unit capacities were determined in batch experiments and it was found that they increase with the soil organic matter (SOM) content according to the order fine silt > medium silt > clay > whole soil > coarse silt > sand. The calculated binding energies for mass-spectrometrically quantified sorption sites followed the order ionic species > peptides > carbohydrates > phenols and lignin monomers > lignin dimers > heterocyclic compounds > fatty acids > sterols > aromatic compounds > lipids, alkanes, and alkenes. SAA forms H-bonds through its polar centers with the polar SOM sorption sites. In contrast dispersion and π-π-interactions predominate the interaction of the SAA aromatic ring with the non-polar moieties of SOM. Moreover, the dipole moment, partial atomic charges, and molecular volume of the SOM sorption sites are the main physical properties controlling the SAA-SOM-interaction. Further, reasonable estimates of the Freundlich unit capacities from the calculated binding energies have been established. Consequently, we suggest using this approach in forthcoming studies to disclose the interactions of a wide range of organic pollutants with SOM.
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Affiliation(s)
- Ashour A Ahmed
- University of Rostock, Institute of Physics, Albert-Einstein-Str. 23-24, D-18059 Rostock, Germany; Steinbeis GmbH & Co. KG für Technologietransfer, 70174 Stuttgart, Germany; University of Cairo, Faculty of Science, Department of Chemistry, 12613 Giza, Egypt.
| | | | - Peter Leinweber
- Steinbeis GmbH & Co. KG für Technologietransfer, 70174 Stuttgart, Germany; University of Rostock, Soil Science, D-18051 Rostock, Germany.
| | - Oliver Kühn
- University of Rostock, Institute of Physics, Albert-Einstein-Str. 23-24, D-18059 Rostock, Germany.
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Romani S, Rocculi P, Tappi S, Dalla Rosa M. Moisture adsorption behaviour of biscuit during storage investigated by using a new Dynamic Dewpoint method. Food Chem 2016; 195:97-103. [PMID: 26575718 DOI: 10.1016/j.foodchem.2015.06.114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 06/12/2015] [Accepted: 06/20/2015] [Indexed: 10/23/2022]
Abstract
The changes in moisture adsorption isotherms of commercial biscuits during storage were investigated by means of a rapid Dynamic Dewpoint Isotherms (DDIs) method. Moreover, the relationships between the changes in moisture content and some quality characteristics of biscuits (moisture, aw, peroxide value - PV and texture) were studied during 92 days of storage at 35 °C. GAB model was used to fit the experimental sorption behaviours. During storage, moisture content and aw of biscuits increased and the obtained isotherms showed modifications in behaviour and shape. Significant changes were observed in PV values and texture, particularly during the first 40 days of storage. The monolayer moisture content, obtained by the BET equation, significantly increased during storage from 1.473 to 2.080 g water 100 g db(-1), probably because of the increase in the active sites for water binding due to the chemical and physical changes of the main components, induced by product ageing.
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Affiliation(s)
- Santina Romani
- Interdepartmental Centre for Agri-Food Industrial Research, University of Bologna, Campus of Food Science, Piazza Goidanich 60, 47521 Cesena (FC), Italy; Department of Agricultural and Food Sciences, University of Bologna, Campus of Food Science, Piazza Goidanich 60, 47521 Cesena (FC), Italy.
| | - Pietro Rocculi
- Interdepartmental Centre for Agri-Food Industrial Research, University of Bologna, Campus of Food Science, Piazza Goidanich 60, 47521 Cesena (FC), Italy; Department of Agricultural and Food Sciences, University of Bologna, Campus of Food Science, Piazza Goidanich 60, 47521 Cesena (FC), Italy
| | - Silvia Tappi
- Department of Agricultural and Food Sciences, University of Bologna, Campus of Food Science, Piazza Goidanich 60, 47521 Cesena (FC), Italy
| | - Marco Dalla Rosa
- Interdepartmental Centre for Agri-Food Industrial Research, University of Bologna, Campus of Food Science, Piazza Goidanich 60, 47521 Cesena (FC), Italy; Department of Agricultural and Food Sciences, University of Bologna, Campus of Food Science, Piazza Goidanich 60, 47521 Cesena (FC), Italy
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43
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Park H, Singhal N, Jho EH. Lithium sorption properties of HMnO in seawater and wastewater. Water Res 2015; 87:320-327. [PMID: 26447943 DOI: 10.1016/j.watres.2015.09.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 09/10/2015] [Accepted: 09/17/2015] [Indexed: 06/05/2023]
Abstract
The lithium concentration in seawater is 0.17 mg/L, which is very low, but the overall quantity is approximately 2.5 × 10(14) kg. Therefore, seawater, which contains a vast amount of lithium, could be a major alternative source that might supply the rising demand for lithium. This research was undertaken to evaluate the feasibility of a manganese oxide (HMnO) adsorbent, which was produced after leaching lithium from lithium manganese oxide, for lithium collection from seawater. The HMnO was synthesized and deformed to a plastic after wet blending of manganese oxide and lithium hydroxide, and subsequently, the influence of pH, sorption isotherms, sorption rates, sorption energies, and effects of the co-ions were measured. Thermodynamic parameters such as ΔG°, ΔH°, and ΔS° indicated that the nature of the lithium sorption was both spontaneous and endothermic. The used HMnO could be regenerated by washing it with an HCl solution. The results demonstrated that HMnO could be effectively used for the collection of lithium from seawater with good selectivity.
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Affiliation(s)
- HyunJu Park
- Integrated Research Institute of Construction and Environmental Engineering #35-216, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea.
| | - Naresh Singhal
- Department of Civil and Environmental Engineering, University of Auckland, New Zealand.
| | - Eun Hea Jho
- Department of Environmental Science, Hankuk University of Foreign Studies, South Korea.
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Bernstein A, Zapata Noreña CP. Thermodynamic sorption of red cabbage extract (Brassica oleracea L. var. capitata L. f. rubra) encapsulated by spray drying. J Food Sci Technol 2015; 52:8180-7. [PMID: 26604392 PMCID: PMC4648913 DOI: 10.1007/s13197-015-1902-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/12/2015] [Accepted: 06/03/2015] [Indexed: 11/24/2022]
Abstract
Red cabbage aqueous extract acidified with 2 % citric acid was spray-dried using gum Arabic as encapsulating agent. The concentration of anthocyanin in the powder was 253.45 ± 10.82 mg/100 g of dry basis and antioxidant activity of 4.6 ± 0.2 mmol trolox/kg of dry basis. The sorption isotherms were determined at 15, 25 and 35 °C, and the GAB model was the one that best adjusted to the experimental data. The differential enthalpy and entropy for moisture levels up to 2 g of water/g of dry basis decreased to a minimum value of -4.36 kJ/mol and -0.019 kJ/molK respectively, and then increased in magnitude with the rise in moisture content to levels close to the free moisture with a spontaneous process, governed by the entropy. The spreading pressure increased with the rise in water activity for all temperatures, while net integral enthalpy and entropy decreased with the rise in moisture content reaching levels close to 10 kJ/mol and 0.025 kJ/molK, respectively.
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Affiliation(s)
- Anahi Bernstein
- Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Porto Alegre, RS Brazil Av. Bento Gonçalves, n° 9500, CEP 91501-970
| | - Caciano P. Zapata Noreña
- Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Porto Alegre, RS Brazil Av. Bento Gonçalves, n° 9500, CEP 91501-970
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Kodešová R, Grabic R, Kočárek M, Klement A, Golovko O, Fér M, Nikodem A, Jakšík O. Pharmaceuticals' sorptions relative to properties of thirteen different soils. Sci Total Environ 2015; 511:435-443. [PMID: 25569579 DOI: 10.1016/j.scitotenv.2014.12.088] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/22/2014] [Accepted: 12/26/2014] [Indexed: 06/04/2023]
Abstract
Transport of human and veterinary pharmaceuticals in soils and consequent ground-water contamination are influenced by many factors, including compound sorption on soil particles. Here we evaluate the sorption isotherms for 7 pharmaceuticals on 13 soils, described by Freundlich equations, and assess the impact of soil properties on various pharmaceuticals' sorption on soils. Sorption of ionizable pharmaceuticals was, in many cases, highly affected by soil pH. The sorption coefficient of sulfamethoxazole was negatively correlated to soil pH, and thus positively related to hydrolytic acidity and exchangeable acidity. Sorption coefficients for clindamycin and clarithromycin were positively related to soil pH and thus negatively related to hydrolytic acidity and exchangeable acidity, and positively related to base cation saturation. The sorption coefficients for the remaining pharmaceuticals (trimethoprim, metoprolol, atenolol, and carbamazepine) were also positively correlated with the base cation saturation and cation exchange capacity. Positive correlations between sorption coefficients and clay content were found for clindamycin, clarithromycin, atenolol, and metoprolol. Positive correlations between sorption coefficients and organic carbon content were obtained for trimethoprim and carbamazepine. Pedotransfer rules for predicting sorption coefficients of various pharmaceuticals included hydrolytic acidity (sulfamethoxazole), organic carbon content (trimethoprimand carbamazepine), base cation saturation (atenolol and metoprolol), exchangeable acidity and clay content (clindamycin), and soil active pH and clay content (clarithromycin). Pedotransfer rules, predicting the Freundlich sorption coefficients, could be applied for prediction of pharmaceutical mobility in soils with similar soil properties. Predicted sorption coefficients together with pharmaceutical half-lives and other imputes (e.g., soil-hydraulic, geological, hydro-geological, climatic) may be used for assessing potential ground-water contamination.
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Affiliation(s)
- Radka Kodešová
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, 16521 Prague 6, Czech Republic.
| | - Roman Grabic
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, CZ-389 25 Vodňany, Czech Republic
| | - Martin Kočárek
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, 16521 Prague 6, Czech Republic
| | - Aleš Klement
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, 16521 Prague 6, Czech Republic
| | - Oksana Golovko
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, CZ-389 25 Vodňany, Czech Republic
| | - Miroslav Fér
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, 16521 Prague 6, Czech Republic
| | - Antonín Nikodem
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, 16521 Prague 6, Czech Republic
| | - Ondřej Jakšík
- Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources, Dept. of Soil Science and Soil Protection, Kamýcká 129, 16521 Prague 6, Czech Republic
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Ahmed AA, Thiele-Bruhn S, Aziz SG, Hilal RH, Elroby SA, Al-Youbi AO, Leinweber P, Kühn O. Interaction of polar and nonpolar organic pollutants with soil organic matter: sorption experiments and molecular dynamics simulation. Sci Total Environ 2015; 508:276-287. [PMID: 25486638 DOI: 10.1016/j.scitotenv.2014.11.087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 11/25/2014] [Accepted: 11/26/2014] [Indexed: 06/04/2023]
Abstract
The fate of organic pollutants in the environment is influenced by several factors including the type and strength of their interactions with soil components especially SOM. However, a molecular level answer to the question "How organic pollutants interact with SOM?" is still lacking. In order to explore mechanisms of this interaction, we have developed a new SOM model and carried out molecular dynamics (MD) simulations in parallel with sorption experiments. The new SOM model comprises free SOM functional groups (carboxylic acid and naphthalene) as well as SOM cavities (with two different sizes), simulating the soil voids, containing the same SOM functional groups. To examine the effect of the hydrophobicity on the interaction, the organic pollutants hexachlorobenzene (HCB, non-polar) and sulfanilamide (SAA, polar) were considered. The experimental and theoretical investigations explored four major points regarding sorption of SAA and HCB on soil, yielding the following results. 1--The interaction depends on the SOM chemical composition more than the SOM content. 2--The interaction causes a site-specific adsorption on the soil surfaces. 3--Sorption hysteresis occurs, which can be explained by inclusion of these pollutants inside soil voids. 4--The hydrophobic HCB is adsorbed on soil stronger than the hydrophilic SAA. Moreover, the theoretical results showed that HCB forms stable complexes with all SOM models in the aqueous solution, while most of SAA-SOM complexes are accompanied by dissociation into SAA and the free SOM models. The SOM-cavity modeling had a significant effect on binding of organic pollutants to SOM. Both HCB and SAA bind to the SOM models in the order of models with a small cavity>a large cavity>no cavity. Although HCB binds to all SOM models stronger than SAA, the latter is more affected by the presence of the cavity. Finally, HCB and SAA bind to the hydrophobic functional group (naphthalene) stronger than to the hydrophilic one (carboxylic acid) for all SOM models containing a cavity. For models without a cavity, SAA binds to carboxylic acid stronger than to naphthalene.
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Affiliation(s)
- Ashour A Ahmed
- University of Rostock, Institute of Physics, D-18051 Rostock, Germany; University of Cairo, Faculty of Science, Department of Chemistry, 12613 Giza, Egypt.
| | | | - Saadullah G Aziz
- King Abdulaziz University, Faculty of Science, Department of Chemistry, Jeddah 21589, Saudi Arabia.
| | - Rifaat H Hilal
- University of Cairo, Faculty of Science, Department of Chemistry, 12613 Giza, Egypt; King Abdulaziz University, Faculty of Science, Department of Chemistry, Jeddah 21589, Saudi Arabia.
| | - Shaaban A Elroby
- King Abdulaziz University, Faculty of Science, Department of Chemistry, Jeddah 21589, Saudi Arabia; University of Beni-Suef, Faculty of Science, Department of Chemistry, Beni-Suef, Egypt.
| | - Abdulrahman O Al-Youbi
- King Abdulaziz University, Faculty of Science, Department of Chemistry, Jeddah 21589, Saudi Arabia.
| | - Peter Leinweber
- University of Rostock, Soil Science, D-18051 Rostock, Germany.
| | - Oliver Kühn
- University of Rostock, Institute of Physics, D-18051 Rostock, Germany.
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Venegas A, Rigol A, Vidal M. Viability of organic wastes and biochars as amendments for the remediation of heavy metal-contaminated soils. Chemosphere 2015; 119:190-198. [PMID: 24995385 DOI: 10.1016/j.chemosphere.2014.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/02/2014] [Accepted: 06/03/2014] [Indexed: 05/25/2023]
Abstract
Composts derived from municipal (MOW and MSW) and domestic wastes (DOM), wastes from the olive oil industry (OWH and OP), green waste (GW), and biochars (BF and BS) were investigated to test their viability for remediating metal-contaminated soils. In addition to common analyses, the characterisation included structural analyses (FTIR and (13)C NMR), determination of the acid neutralisation capacity (ANC) and the construction of sorption isotherms for target metals (Pb, Zn, Cd, Ni and Cu). MOW and GW had the highest ANC values (4280 and 7100 meq kg(-1), respectively), and MOW, GW, DOM, BF and BS exhibited the highest solid-liquid distribution coefficients (Kd) with maximum values in the 10(4) L kg(-1) range. Sorption isotherms were fitted using linear and Freundlich models for better comparison of the sorption capacities of the materials. Based on their basic pH, high ANC and high sorption capacity, MOW, GW and biochars are the most promising materials.
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Affiliation(s)
- A Venegas
- Departament de Química Analítica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - A Rigol
- Departament de Química Analítica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - M Vidal
- Departament de Química Analítica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
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Oliveira DM, Clemente E, da Costa JM. Hygroscopic behavior and degree of caking of grugru palm (Acrocomia aculeata) powder. J Food Sci Technol 2014; 51:2783-9. [PMID: 25328226 DOI: 10.1007/s13197-012-0814-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/24/2012] [Accepted: 08/13/2012] [Indexed: 10/27/2022]
Abstract
This work aims to investigate the hygroscopic behavior of grugru palm powder through adsorption isotherms and its degree of caking. The powders of grugru palm (T1 - without maltodextrin, T2 - with 8 % of maltodextrin) were obtained by oven drying at 65 °C for 25 h. The experimental data was obtained through static gravimetric method at temperatures of 25, 30, 35 and 40 °C with different saturated salt solutions. The models of GAB, BET, Henderson, and Oswin were fitted to experimental data. The values of hygroscopicity were 6.39 and 5.17 % and degrees of caking were 3.11 and 0.03 % for T1 and T2, respectively. The adsorption isotherms from mathematical models can be classified as Type III. The GAB and Oswin models were the best representing the behavior of the powder isotherms, T1 and T2, respectively. The grugru palm powder proved to be non-hygroscopic and non-agglomerating. The T2 with 8 % of maltodextrin presented the lowest hygroscopicity.
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49
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Mousa W, Ghazali FM, Jinap S, Ghazali HM, Radu S. Sorption isotherms and isosteric heats of sorption of Malaysian paddy. J Food Sci Technol 2014; 51:2656-63. [PMID: 25328208 PMCID: PMC4190263 DOI: 10.1007/s13197-012-0799-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/02/2012] [Accepted: 07/31/2012] [Indexed: 11/25/2022]
Abstract
Understanding the water sorption characteristics of cereal is extremely essential for optimizing the drying process and ensuring storage stability. Water relation of rough rice was studied at 20, 30, 40 and 50 °C over relative humidity (RH.) between 0.113 and 0.976 using the gravimetric technique. The isotherms displayed the general sigmoid, Type II pattern and exhibited the phenomenon of hysteresis where it was more pronounced at lower temperatures. The sorption characteristics were temperature dependence where the sorption capacity of the paddy increased as the temperature was decreased at fixed (RH). Among the models assessed for their ability to fit the sorption data, Oswin equation was the best followed by the third order polynomial, GAB, Smith, Chung-Pfost, and Henderson models. The monolayer moisture content was higher for desorption than adsorption and tend to decrease with the increase in temperature. Given the temperature dependence of the sorption isotherms the isosteric heats of sorption were calculated using Claussius-Clapeyron equation. The net isosteric heats decreased as the moisture content was increased and heats of desorption were greater than that of adsorption.
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Affiliation(s)
- Wael Mousa
- />Center of Excellence for Food Safety Research (CEFSR), Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan Malaysia
| | - Farinazleen Mohamad. Ghazali
- />Center of Excellence for Food Safety Research (CEFSR), Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan Malaysia
| | - S. Jinap
- />Center of Excellence for Food Safety Research (CEFSR), Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan Malaysia
| | - Hasanah Mohd. Ghazali
- />Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan Malaysia
| | - Son Radu
- />Center of Excellence for Food Safety Research (CEFSR), Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan Malaysia
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50
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Castaldi P, Silvetti M, Garau G, Demurtas D, Deiana S. Copper(II) and lead(II) removal from aqueous solution by water treatment residues. J Hazard Mater 2014; 283:140-147. [PMID: 25262486 DOI: 10.1016/j.jhazmat.2014.09.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 09/04/2014] [Accepted: 09/11/2014] [Indexed: 06/03/2023]
Abstract
In this study, we investigated the ability of Fe- and Al-based water treatment residues (Fe- and Al-WTR) to accumulate Pb(II) and Cu(II) at pH 4.5. The role of the inorganic and organic fractions of WTRs in metals sorption was also assessed. Sorption isotherms showed a higher sorption of Pb(II) by both WTRs with respect to Cu(II) (e.g. 0.105 and 0.089 mmol g(-1) of Pb(II) and Cu(II) respectively sorbed by Fe-WTR). Fe-WTR revealed a stronger sorbent for both metals than Al-WTR. The amount of Pb(II) and Cu(II) sorbed by Fe-WTR was about the 69% and 63% higher than that sorbed by the Al-WTR. The organic matter of Fe- and Al-WTR contributed to about 26% and 8.5% respectively in the sorption of both metals. The sequential extraction procedure showed that the greatest amount of metals sorbed by both WTRs were tightly bound and not extractable, and this was particularly apparent for Cu(II). The FT-IR spectra indicated the formation of inner-sphere complexes between the Fe(Al)-O nucleus and Pb(II) and Cu(II). Moreover, the FT-IR spectra also suggested that the humic fraction of WTRs interacted, through the carboxylate groups, with Cu(II) and Pb(II) by forming mainly monodentate and bidentate complexes, respectively.
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Affiliation(s)
- Paola Castaldi
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy.
| | - Margherita Silvetti
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy
| | - Giovanni Garau
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy
| | - Daniela Demurtas
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy
| | - Salvatore Deiana
- Dipartimento di Agraria, Sezione di Scienze e Tecnologie Ambientali e Alimentari, University of Sassari, Viale Italia 39, 07100 Sassari, Italy
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