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Gustafsson, Jon PetterORCID iD iconorcid.org/0000-0001-8771-7941
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Publications (10 of 106) Show all publications
Zuo, M., Renman, G., Gustafsson, J. P. & Klysubun, W. (2018). Dual slag filters for enhanced phosphorus removal from domestic waste water: performance and mechanisms. Environmental science and pollution research international, 25(8), 7391-7400
Open this publication in new window or tab >>Dual slag filters for enhanced phosphorus removal from domestic waste water: performance and mechanisms
2018 (English)In: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 25, no 8, p. 7391-7400Article in journal (Refereed) Published
Abstract [en]

The phosphorus (P) removal of five combinations of dual filters consisting of blast furnace slag (BFS), argon oxygen decarburisation slag (AOD) and electric arc furnace slag (EAF) was evaluated in column experiments with domestic waste water. The columns were fed with waste water for 24 days. The column with only EAF had the best P removal performance (above 93% throughout the experiment). The speciation of the bound P was evaluated by P K-edge X-ray absorption near-edge structure (XANES) spectroscopy. In all five columns, the main P species of the slag packed in the outlet chamber was amorphous calcium phosphate (ACP). In samples from the inlet chambers, the contributions from crystalline Ca phosphates, P adsorbed on gibbsite and P adsorbed on ferrihydrite were usually much greater, suggesting a shift of P removal mechanism as the waste water travelled from the inlet to the outlet. The results provide strong evidence that P was predominantly removed by the slags through the formation of ACP. However, as the pH decreased with time due to the progressively lower dissolution of alkaline silicate minerals from the slag, the ACP was rendered unstable and hence redissolved, changing the P speciation. It is suggested that this process strongly affected the lifespan of the slag filters. Of the slags examined, EAF slag had the best P removal characteristics and BFS the worst, which probably reflected different dissolution rates of alkaline silicates in the slags.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2018
Keyword
Metallurgical slags, Calcium phosphate, Phosphate speciation, Precipitation, Adsorption, Metal release
National Category
Environmental Sciences
Identifiers
urn:nbn:se:kth:diva-225206 (URN)10.1007/s11356-017-0925-y (DOI)000427398200029 ()29280098 (PubMedID)2-s2.0-85039055686 (Scopus ID)
Note

QC 20180403

Available from: 2018-04-03 Created: 2018-04-03 Last updated: 2018-05-23Bibliographically approved
Tiberg, C., Sjostedt, C. & Gustafsson, J. P. (2018). Metal sorption to Spodosol Bs horizons: Organic matter complexes predominate. Chemosphere, 196, 556-565
Open this publication in new window or tab >>Metal sorption to Spodosol Bs horizons: Organic matter complexes predominate
2018 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 196, p. 556-565Article in journal (Refereed) Published
Abstract [en]

While metal sorption mechanisms have been studied extensively for soil surface horizons, little information exists for subsoils, for example Spodosol Bs horizons. Here the sorption of cadmium(10, copper(II) and lead(II) to seven Bs horizons from five sites was studied. Extended X-ray absorption fine structure (EXAFS) spectroscopy showed that cadmium(II) and lead(II) were bound as inner-sphere complexes to organic matter. Addition of o-phosphate (to 1 mu mol l(-1)) did not result in any significant enhancement of metal sorption, nor did it influence EXAFS speciation. An assemblage model using the SHM and CD-MUSIC models overestimated metal sorption for six out of seven soil samples. To agree with experimental results, substantial decreases (up to 8-fold) had to be made for the fraction 'active organic matter', f(Hs), while the point-of-zero charge (PZC) of ferrihydrite had to be increased. The largest decreases of f(HS) were found for the soils with the lowest ratio of pyrophosphate-to oxalate-extractable Al (Al-pyp/Al-ox), suggesting that in these soils, humic and fulvic acids were to a large extent inaccessible for metal sorption. The low reactivity of ferrihydrite towards lead(II) can be explained by potential spillover effects from co-existing allophane, but other factors such as ferrihydrite crystallisation could not be ruled out. In conclusion, organic matter was the predominant sorbent for cadmium(II), copper(II) and lead(II). However, for lead(II) the optimised model suggests additional, but minor, contributions from Fe (hydr) oxide surface complexes. These results will be important to correctly model metal sorption in spodic materials. 

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD, 2018
Keyword
Cadmium, Copper, Lead, Soil, EXAFS, Assemblage model
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-223773 (URN)10.1016/j.chemosphere.2018.01.004 (DOI)000425075500063 ()29329088 (PubMedID)2-s2.0-85043422259 (Scopus ID)
Note

QC 20180307

Available from: 2018-03-07 Created: 2018-03-07 Last updated: 2018-04-17Bibliographically approved
Campos Pereira, H., Ullberg, M., Kleja, D. B., Gustafsson, J. P. & Ahrens, L. (2018). Sorption of perfluoroalkyl substances (PFASs) to an organic soil horizon – Effect of cation composition and pH. Chemosphere, 207, 183-191
Open this publication in new window or tab >>Sorption of perfluoroalkyl substances (PFASs) to an organic soil horizon – Effect of cation composition and pH
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2018 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 207, p. 183-191Article in journal (Refereed) Published
Abstract [en]

Accurate prediction of the sorption of perfluoroalkyl substances (PFASs) in soils is essential for environmental risk assessment. We investigated the effect of solution pH and calculated soil organic matter (SOM) net charge on the sorption of 14 PFASs onto an organic soil as a function of pH and added concentrations of Al3+, Ca2+ and Na+. Often, the organic C-normalized partitioning coefficients (KOC) showed a negative relationship to both pH (Δlog KOC/ΔpH = −0.32 ± 0.11 log units) and the SOM bulk net negative charge (Δlog KOC = −1.41 ± 0.40 per log unit molc g−1). Moreover, perfluorosulfonic acids (PFSAs) sorbed more strongly than perfluorocarboxylic acids (PFCAs) and the PFAS sorption increased with increasing perfluorocarbon chain length with 0.60 and 0.83 log KOC units per CF2 moiety for C3–C10 PFCAs and C4, C6, and C8 PFSAs, respectively. The effects of cation treatment and SOM bulk net charge were evident for many PFASs with low to moderate sorption (C5–C8 PFCAs and C6 PFSA). However for the most strongly sorbing and most long-chained PFASs (C9–C11 and C13 PFCAs, C8 PFSA and perfluorooctane sulfonamide (FOSA)), smaller effects of cations were seen, and instead sorption was more strongly related to the pH value. This suggests that the most long-chained PFASs, similar to other hydrophobic organic compounds, are preferentially sorbed to the highly condensed domains of the humin fraction, while shorter-chained PFASs are bound to a larger extent to humic and fulvic acid, where cation effects are significant.

Place, publisher, year, edition, pages
Elsevier, 2018
Keyword
Geochemical modeling, PFOA, PFOS, Soil–water partitioning, Surface net charge, Visual MINTEQ
National Category
Soil Science
Identifiers
urn:nbn:se:kth:diva-228704 (URN)10.1016/j.chemosphere.2018.05.012 (DOI)2-s2.0-85047261550 (Scopus ID)
Funder
Swedish Research Council, 2015-03938
Note

QC 20180529

Available from: 2018-05-29 Created: 2018-05-29 Last updated: 2018-05-29Bibliographically approved
Larsson, M. A., Hadialhejazi, G. & Gustafsson, J. P. (2017). Vanadium sorption by mineral soils: Development of a predictive model. Chemosphere, 168, 925-932
Open this publication in new window or tab >>Vanadium sorption by mineral soils: Development of a predictive model
2017 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 168, p. 925-932Article in journal (Refereed) Published
Abstract [en]

The toxicity of vanadium in soils depends on its sorption to soil components. Here we studied the vanadate(V) sorption properties of 26 mineral soils. The data were used to optimise parameters for a Freundlich equation with a pH term. Vanadium K-edge XANES spectroscopy for three selected soils confirmed that the added vanadate(V) had accumulated mostly as adsorbed vanadate(V) on Fe and Al hydrous oxides, with only minor contributions from organically complexed vanadium(IV). Data on pH-dependent V solubility for seven soils showed that on average 0.36 H+ accompanied each V during adsorption and desorption. The resulting model provided reasonable fits to the V sorption data, with r2 > 0.99 for 20 of 26 soils. The observed KdS value, i.e. the ratio of total to dissolved V, was strongly dependent on V addition and soil; it varied between 3 and 4 orders of magnitude. The model was used to calculate the Freundlich sorption strength (FSS), i.e. the amount of V sorbed at [V] = 2.5 mg L−1, in the concentration range of observed plant toxicities. A close relationship between FSS and oxalate-extractable Fe and Al was found (r2 = 0.85) when one acidic soil was removed from the regression. The FSS varied between 27 and 8718 mg V kg−1, showing that the current environmental guidelines can be both under- and overprotective for vanadium.

Place, publisher, year, edition, pages
Elsevier, 2017
Keyword
Freundlich, Hydrous oxides, pH dependence, Speciation, Vanadate
National Category
Soil Science
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-201935 (URN)10.1016/j.chemosphere.2016.10.117 (DOI)000400879900009 ()27816283 (PubMedID)2-s2.0-85005847217 (Scopus ID)
Note

QC 20170609

Available from: 2017-03-07 Created: 2017-03-07 Last updated: 2017-06-09Bibliographically approved
Zuo, M., Renman, G. & Gustafsson, J. P. (2016). Effect of aging on phosphorus removal of metallurgical slag and heat reactivation of aged slag. In: : . Paper presented at 2016 IWA water congress & exhibition.
Open this publication in new window or tab >>Effect of aging on phosphorus removal of metallurgical slag and heat reactivation of aged slag
2016 (English)Conference paper, Oral presentation only (Other academic)
Keyword
ageing, heating, AOD, EAF, BFS
National Category
Civil Engineering
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-213412 (URN)
Conference
2016 IWA water congress & exhibition
Note

QC 20170830

Available from: 2017-08-30 Created: 2017-08-30 Last updated: 2017-08-30Bibliographically approved
Eriksson, A. K., Hillier, S., Hesterberg, D., Klysubun, W., Ulén, B. & Gustafsson, J. P. (2016). Evolution of phosphorus speciation with depth in an agricultural soil profile. Geoderma, 280, 29-37
Open this publication in new window or tab >>Evolution of phosphorus speciation with depth in an agricultural soil profile
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2016 (English)In: Geoderma, ISSN 0016-7061, E-ISSN 1872-6259, Vol. 280, p. 29-37Article in journal (Refereed) Published
Abstract [en]

With time, different soil-forming processes such as weathering, plant growth, accumulation of organic matter, and cultivation are likely to affect phosphorus (P) speciation. In this study, the depth distribution of P species was investigated for an agricultural clay soil, Lanna, Sweden. Small amounts of apatite-P was demonstrated in the topsoil whereas the speciation of Pat 70-100 cm depth consisted of approximately 86% apatite according to P K-edge XANES (X-ray absorption near-edge structure) spectroscopy. Because there were only minor differences in bulk mineralogy and texture, these variations in P speciation were interpreted as the result of apatite weathering of the topsoil. Speciation modeling on soil extracts supported this idea: hydroxyapatite was not thermodynamically stable in the top 50 cm of the soil. Apatite was enriched in the bulk soil relative to the clay fraction, as expected during apatite dissolution. Combined results from batch experiments, XANES spectroscopy and X-ray diffraction suggested chemical transformations of the topsoil as a result from accumulation of organic matter and airing from tillage followed by enhanced weathering of apatite, amphiboles, clay minerals, and iron oxides. This caused the formation of poorly crystalline secondary iron and aluminum (hydr)oxides in the topsoil, which retained part of the released P from apatite. Other P was incorporated into organic forms. Furthermore, the results also showed that short-term acidification below the current pH value (below 5.5 in the topsoil and 7.2 in the deeper subsoil) caused significant solubilization of P. This is attributed to two different mechanisms: the instability of Al-containing sorbents (e.g. Al hydroxides) at low pH (in the topsoil), and the acid-mediated dissolution of apatite (the subsoil).

Place, publisher, year, edition, pages
Elsevier, 2016
Keyword
Acidification, Apatite, Clay, Secondary iron and aluminum (hydr)oxides, X-ray adsorption spectroscopy
National Category
Soil Science
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-191735 (URN)10.1016/j.geoderma.2016.06.004 (DOI)000380626700005 ()2-s2.0-84974653012 (Scopus ID)
External cooperation:
Funder
Swedish Research Council Formas, 2010-1677
Note

QC 20160906

Available from: 2016-09-02 Created: 2016-09-02 Last updated: 2017-11-21Bibliographically approved
Tiberg, C., Kumpiene, J., Gustafsson, J. P., Marsz, A., Persson, I., Mench, M. & Kleja, D. B. (2016). Immobilization of Cu and As in two contaminated soils with zero-valent iron - Long-term performance and mechanisms. Applied Geochemistry, 67, 144-152
Open this publication in new window or tab >>Immobilization of Cu and As in two contaminated soils with zero-valent iron - Long-term performance and mechanisms
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2016 (English)In: Applied Geochemistry, ISSN 0883-2927, E-ISSN 1872-9134, Vol. 67, p. 144-152Article in journal (Refereed) Published
Abstract [en]

Immobilization of trace elements in contaminated soils by zero-valent iron (ZVI) is a promising remediation method, but questions about its long-term performance remain unanswered. To quantify immobilization and predict possible contaminant remobilization on long timescales detailed knowledge about immobilization mechanisms is needed. This study aimed at assessing the long-term effect of ZVI amendments on dissolved copper and arsenic in contaminated soils, at exploring the immobilization mechanism(s), and at setting up a geochemical model able to estimate dissolved copper and arsenic under different scenarios. Samples from untreated and ZVI-treated plots in two field experiments where ZVI had been added 6 and 15 years ago were investigated by a combination of batch experiments, geochemical modeling and extended X-ray absorption fine structure (EXAFS) spectroscopy. Dissolved copper and arsenic concentrations were described by a multisurface geochemical model with surface complexation reactions, verified by EXAFS. The ZVI remained "reactive" after 6-15 years, i. e. the dissolved concentrations of copper and arsenic were lower in the ZVI-treated than in the untreated soils. There was a shift in copper speciation from organic matter complexes in the untreated soil to surface complexes with iron (hydr)oxides in the ZVI-treated soil. The pH value was important for copper immobilization and ZVI did not have a stabilizing effect if pH was lower than about 6. Immobilization of arsenic was slightly pH-dependent and sensitive to the competition with phosphate. If phosphate was ignored in the modeling, the dissolution of arsenate was greatly underestimated. (C) 2016 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
Elsevier, 2016
Keyword
Copper, Arsenic, ZVI, Zero-valent iron, Iron (hydr)oxide, Immobilization, Stabilization, Contaminated soil, Remediation, Geochemical modeling, Surface complexation model, EXAFS spectroscopy, X-ray absorption spectroscopy
National Category
Geochemistry
Identifiers
urn:nbn:se:kth:diva-185608 (URN)10.1016/j.apgeochem.2016.02.009 (DOI)000372720900013 ()2-s2.0-84959353433 (Scopus ID)
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note

QC 20160428

Available from: 2016-04-28 Created: 2016-04-25 Last updated: 2017-11-30Bibliographically approved
Tiberg, C. & Gustafsson, J. P. (2016). Phosphate effects on cadmium(II) sorption to ferrihydrite. Journal of Colloid and Interface Science, 471, 103-111
Open this publication in new window or tab >>Phosphate effects on cadmium(II) sorption to ferrihydrite
2016 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 471, p. 103-111Article in journal (Refereed) Published
Abstract [en]

Hypothesis: Phosphate influences the sorption of metals to iron (hydr)oxides. An enhanced formation of inner-sphere complexes on the (hydr)oxide surface can be attributed to electrostatic interactions and/or to changes in metal coordination on the iron (hydr)oxide surface. Phosphate was expected to increase cadmium(II) sorption on ferrihydrite. It should be possible to identify changes in cadmium(II) coordination upon phosphate addition by Extended X-ray absorption fine structure (EXAFS) spectroscopy and implement the identified complexes in a surface complexation model (SCM). Experiments: The effect of phosphate addition on cadmium(II) sorption to ferrihydrite was studied by a series of batch experiments covering the pH range from 4 to 8. EXAFS spectroscopy was performed on ferrihydrite from the batch experiments at the cadmium K edge. The identified surface complexes were incorporated in the Charge distribution multisite complexation (CD-MUSIC) model, and new surface complexation constants were optimized. Findings: Without phosphate addition cadmium(II) formed inner-sphere bidentate complexes on the ferrihydrite surface. With phosphate there was an increased cadmium(II) sorption that could not be explained by electrostatic interactions alone. The enhancement was best explained by the formation of a ternary complex including cadmium(II), phosphate and ferrihydrite surface groups.

Place, publisher, year, edition, pages
Academic Press Inc., 2016
Keyword
Adsorption, Cadmium (Cd), Charge distribution multisite complexation (CD-MUSIC), Extended X-ray absorption spectroscopy (EXAFS), Iron hydroxide, Iron oxide, Phosphate, Surface complex, Cadmium, Charge distribution, Coordination reactions, Electrostatics, Extended X ray absorption fine structure spectroscopy, Hydraulic servomechanisms, Iron, Iron oxides, Phosphates, Sorption, X ray absorption spectroscopy, Cadmiums (Cd), Extended x-ray absorption spectroscopies, Iron hydroxides, Multi-site, Iron compounds
National Category
Chemical Engineering Geochemistry
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-186957 (URN)10.1016/j.jcis.2016.03.016 (DOI)000374511900014 ()2-s2.0-84960923174 (Scopus ID)
Note

QC 20160524

Available from: 2016-05-24 Created: 2016-05-16 Last updated: 2017-11-30Bibliographically approved
Eriksson, A. K., Hesterberg, D., Klysubun, W. & Gustafsson, J. P. (2016). Phosphorus dynamics in Swedish agricultural soils as influenced by fertilization and mineralogical properties: Insights gained from batch experiments and XANES spectroscopy. Science of the Total Environment, 566, 1410-1419
Open this publication in new window or tab >>Phosphorus dynamics in Swedish agricultural soils as influenced by fertilization and mineralogical properties: Insights gained from batch experiments and XANES spectroscopy
2016 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 566, p. 1410-1419Article in journal (Refereed) Published
Abstract [en]

The soil chemistry of phosphorus (P) is important for understanding the processes governing plant availability as well as the risk of environmental losses of P. The objective of this research was to investigate both the speciation and the pH-dependent solubility patterns of P in clayey agricultural soils in relation to soil mineralogy and fertilization history. The study focused on soil samples from six fields that were subjected to different P fertilization regimes for periods of 45 to 57 years. Soil P speciation was analyzed by P K-edge XANES spectroscopy and chemical fractionation, sorption isotherms were constructed, and dissolved P was measured as a function of pH. The XANES fitting results showed that organic P and P adsorbed to Fe and Al (hydr) oxides were common P constituents in all soils. Calciumphosphateswere identified in five of six soil samples. The XANES results also indicated an increase in P adsorbed to Al and to a lesser extent Fe (hydr) oxides as a result of fertilization. Moreover, the fluorescence intensity from the P K-edge XANES analysis was most strongly correlated with HCl-digestible P (r = 0.81***). Consistent with the XANES analysis, laboratory sorption isotherm models showed that the Freundlich sorption coefficient (K-F) was most closely related to oxalate-extractable Al. Greater proportions of Ca phosphate in two of the heavily fertilized soils in combination with enhanced PO4 solubilization upon sample acidification indicated neoformation of Ca-phosphate precipitates. The results for the unfertilized soil samples generally showed a minimum in dissolved PO4 between pH 6.5 and 7.5, with increases particularly at lower pH. This behavior can be explained either by the dissolution of Al-hydroxide-type sorbents or Ca phosphates at lower pH. In fertilized soils, there was no consistent trend in pH-dependent solubilization of P, with a complex relationship to solid-phase speciation. To conclude, inorganic P species changed most dynamically in agricultural clay soils over a period of several decades, and the role of pH in the solubilization of P depended mainly on P fertilization history and the content of reactive Ca phosphates.

Place, publisher, year, edition, pages
Elsevier, 2016
Keyword
XANES spectroscopy, Phosphorus, Phosphate, Apatite, Secondary iron and aluminium (hydr)oxides, Clay mineralogy
National Category
Environmental Sciences
Identifiers
urn:nbn:se:kth:diva-191739 (URN)10.1016/j.scitotenv.2016.05.225 (DOI)000381060900136 ()27312272 (PubMedID)
External cooperation:
Funder
Swedish Research Council Formas, 2010-1677
Note

QC 20160902

Available from: 2016-09-02 Created: 2016-09-02 Last updated: 2017-11-21Bibliographically approved
Kleja, D. B., Nakata, S., Persson, I. & Gustafsson, J. P. (2016). Silver(I) Binding Properties of Organic Soil Materials Are Different from Those of Isolated Humic Substances. Environmental Science and Technology, 50(14), 7453-7460
Open this publication in new window or tab >>Silver(I) Binding Properties of Organic Soil Materials Are Different from Those of Isolated Humic Substances
2016 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 50, no 14, p. 7453-7460Article in journal (Refereed) Published
Abstract [en]

The solubility of silver(I) in many soils is controlled by complexation reactions with organic matter. In this work we have compared the ability of isolated humic and fulvic acids to bind silver(I) with that of mor and peat materials. One new data set for Suwannee River Fulvic Acid was produced, which was consistent with published data sets for isolated fulvic and humic acids. The ability of soil materials to bind silver(I) was studied as a function of pH in the range 2.5-5.0, at a wide range of silver(I)-to-soil ratios (10(-4.2) - 10(-1.9) mol kg(-1)). By calibrating the Stockholm Humic Model on the humic and fulvic acids data sets, we showed that binding of silver(I) to both types of soil materials was much stronger (up to 2 orders of magnitude) than predicted from the silver(I) binding properties of the isolated humic materials. Thus, the approach taken for many other metals, that is, to model solubility in soils by using metal and proton binding parameters derived from isolated humic and fulvic acids, cannot be used for silver(I). One possible explanation for the discrepancy could be that silver(I) predominately interacted with various biomolecules in the soil samples, instead of humic- and fulvic-acid type materials.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2016
Keyword
X-Ray-Absorption, Soft Acids, Coordination Chemistry, Cation-Binding, Ion-Binding, Bases Hsab, Matter, Speciation, Water, Complexation
National Category
Environmental Sciences
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-191752 (URN)10.1021/acs.est.6b00970 (DOI)000380295700021 ()2-s2.0-84978791283 (Scopus ID)
Funder
Swedish Research CouncilKnut and Alice Wallenberg FoundationThe Crafoord Foundation
Note

QC 20160913

Available from: 2016-09-13 Created: 2016-09-02 Last updated: 2017-11-21Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0001-8771-7941

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