Contamination Alters the Physicochemical and Textural Characteristics of Clays in the Sediments of the Peri Urban Reconquista River, Affecting the Associated Indigenous Microorganisms
The physicochemical and textural characteristics of river sediments and, essentially, their clays, are at the center of a network of biological and geochemical factors that are mutually modifying. Therefore, the contamination, the characteristics of the clays, and the associated microorganisms stron...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-02-01
|
| Series: | Minerals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-163X/11/3/242 |
| _version_ | 1797395155499614208 |
|---|---|
| author | Ana E. Tufo Susana Vázquez Natalia F. Porzionato María Celeste Grimolizzi María Belén Prados Mauricio Sica Gustavo Curutchet |
| author_facet | Ana E. Tufo Susana Vázquez Natalia F. Porzionato María Celeste Grimolizzi María Belén Prados Mauricio Sica Gustavo Curutchet |
| author_sort | Ana E. Tufo |
| collection | DOAJ |
| description | The physicochemical and textural characteristics of river sediments and, essentially, their clays, are at the center of a network of biological and geochemical factors that are mutually modifying. Therefore, the contamination, the characteristics of the clays, and the associated microorganisms strongly influence each other. In this work, sediments from two sites of the urban Reconquista River, near Buenos Aires City, Argentina, exposed to different environmental contexts were characterized. The huge differences in the organic matter content in the vertical profile between both sediments strongly evidenced the polluted status of San Francisco (SF) site as opposed to the Dique Roggero (DR) site. Thorough physicochemical and textural characterization of the sediments and their clay fraction performed by pH, Oxidation-reduction potential (ORP), spectrophotometry, XRD, laser diffraction, N<sub>2</sub> adsorption–desorption isotherms, EDS, and SEM measurements revealed that organic matter (DR: 41 ± 5 g kg<sup>−1</sup>; SF: 150 ± 30 g kg<sup>−1</sup>) intervened in the retention of heavy metals (DR: 5.6 mg kg<sup>−1</sup> Zn, 7 mg kg<sup>−1</sup> Cu, 3.1 kg<sup>−1</sup> Cr; SF: 240 mg kg<sup>−1</sup> Zn, 60 mg kg<sup>−1</sup> Cu, 270 mg kg<sup>−1</sup> Cr) and affected the level of association and the formation of mineral–organic aggregates (DR: 15 ± 3 μm; SF: 23 ± 4 μm). This can be decisive in the surface interaction required for the establishment of bacterial assemblages, which determine the biogeochemical processes occurring in sediments and have a key role in the fate of contaminants in situ and in the remediation processes that need to be applied to restore the anoxic contaminated sediments. |
| first_indexed | 2024-03-09T00:30:22Z |
| format | Article |
| id | doaj.art-4979e7df8f934fa6becfe5899a5be3eb |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T00:30:22Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-4979e7df8f934fa6becfe5899a5be3eb2023-12-11T18:33:44ZengMDPI AGMinerals2075-163X2021-02-0111324210.3390/min11030242Contamination Alters the Physicochemical and Textural Characteristics of Clays in the Sediments of the Peri Urban Reconquista River, Affecting the Associated Indigenous MicroorganismsAna E. Tufo0Susana Vázquez1Natalia F. Porzionato2María Celeste Grimolizzi3María Belén Prados4Mauricio Sica5Gustavo Curutchet6Instituto de Investigación e Ingeniería Ambiental-IIIA, UNSAM, CONICET, Campus Miguelete, San Martín 1650, ArgentinaFacultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, ArgentinaInstituto de Investigación e Ingeniería Ambiental-IIIA, UNSAM, CONICET, Campus Miguelete, San Martín 1650, ArgentinaInstituto de Investigación e Ingeniería Ambiental-IIIA, UNSAM, CONICET, Campus Miguelete, San Martín 1650, ArgentinaInstituto de Energía y Desarrollo Sustentable, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Carlos de Bariloche R8402AGP, ArgentinaInstituto de Energía y Desarrollo Sustentable, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Carlos de Bariloche R8402AGP, ArgentinaInstituto de Investigación e Ingeniería Ambiental-IIIA, UNSAM, CONICET, Campus Miguelete, San Martín 1650, ArgentinaThe physicochemical and textural characteristics of river sediments and, essentially, their clays, are at the center of a network of biological and geochemical factors that are mutually modifying. Therefore, the contamination, the characteristics of the clays, and the associated microorganisms strongly influence each other. In this work, sediments from two sites of the urban Reconquista River, near Buenos Aires City, Argentina, exposed to different environmental contexts were characterized. The huge differences in the organic matter content in the vertical profile between both sediments strongly evidenced the polluted status of San Francisco (SF) site as opposed to the Dique Roggero (DR) site. Thorough physicochemical and textural characterization of the sediments and their clay fraction performed by pH, Oxidation-reduction potential (ORP), spectrophotometry, XRD, laser diffraction, N<sub>2</sub> adsorption–desorption isotherms, EDS, and SEM measurements revealed that organic matter (DR: 41 ± 5 g kg<sup>−1</sup>; SF: 150 ± 30 g kg<sup>−1</sup>) intervened in the retention of heavy metals (DR: 5.6 mg kg<sup>−1</sup> Zn, 7 mg kg<sup>−1</sup> Cu, 3.1 kg<sup>−1</sup> Cr; SF: 240 mg kg<sup>−1</sup> Zn, 60 mg kg<sup>−1</sup> Cu, 270 mg kg<sup>−1</sup> Cr) and affected the level of association and the formation of mineral–organic aggregates (DR: 15 ± 3 μm; SF: 23 ± 4 μm). This can be decisive in the surface interaction required for the establishment of bacterial assemblages, which determine the biogeochemical processes occurring in sediments and have a key role in the fate of contaminants in situ and in the remediation processes that need to be applied to restore the anoxic contaminated sediments.https://www.mdpi.com/2075-163X/11/3/242Reconquista Rivercontaminationsedimentsclaysmicroorganismsbiofilms |
| spellingShingle | Ana E. Tufo Susana Vázquez Natalia F. Porzionato María Celeste Grimolizzi María Belén Prados Mauricio Sica Gustavo Curutchet Contamination Alters the Physicochemical and Textural Characteristics of Clays in the Sediments of the Peri Urban Reconquista River, Affecting the Associated Indigenous Microorganisms Minerals Reconquista River contamination sediments clays microorganisms biofilms |
| title | Contamination Alters the Physicochemical and Textural Characteristics of Clays in the Sediments of the Peri Urban Reconquista River, Affecting the Associated Indigenous Microorganisms |
| title_full | Contamination Alters the Physicochemical and Textural Characteristics of Clays in the Sediments of the Peri Urban Reconquista River, Affecting the Associated Indigenous Microorganisms |
| title_fullStr | Contamination Alters the Physicochemical and Textural Characteristics of Clays in the Sediments of the Peri Urban Reconquista River, Affecting the Associated Indigenous Microorganisms |
| title_full_unstemmed | Contamination Alters the Physicochemical and Textural Characteristics of Clays in the Sediments of the Peri Urban Reconquista River, Affecting the Associated Indigenous Microorganisms |
| title_short | Contamination Alters the Physicochemical and Textural Characteristics of Clays in the Sediments of the Peri Urban Reconquista River, Affecting the Associated Indigenous Microorganisms |
| title_sort | contamination alters the physicochemical and textural characteristics of clays in the sediments of the peri urban reconquista river affecting the associated indigenous microorganisms |
| topic | Reconquista River contamination sediments clays microorganisms biofilms |
| url | https://www.mdpi.com/2075-163X/11/3/242 |
| work_keys_str_mv | AT anaetufo contaminationaltersthephysicochemicalandtexturalcharacteristicsofclaysinthesedimentsoftheperiurbanreconquistariveraffectingtheassociatedindigenousmicroorganisms AT susanavazquez contaminationaltersthephysicochemicalandtexturalcharacteristicsofclaysinthesedimentsoftheperiurbanreconquistariveraffectingtheassociatedindigenousmicroorganisms AT nataliafporzionato contaminationaltersthephysicochemicalandtexturalcharacteristicsofclaysinthesedimentsoftheperiurbanreconquistariveraffectingtheassociatedindigenousmicroorganisms AT mariacelestegrimolizzi contaminationaltersthephysicochemicalandtexturalcharacteristicsofclaysinthesedimentsoftheperiurbanreconquistariveraffectingtheassociatedindigenousmicroorganisms AT mariabelenprados contaminationaltersthephysicochemicalandtexturalcharacteristicsofclaysinthesedimentsoftheperiurbanreconquistariveraffectingtheassociatedindigenousmicroorganisms AT mauriciosica contaminationaltersthephysicochemicalandtexturalcharacteristicsofclaysinthesedimentsoftheperiurbanreconquistariveraffectingtheassociatedindigenousmicroorganisms AT gustavocurutchet contaminationaltersthephysicochemicalandtexturalcharacteristicsofclaysinthesedimentsoftheperiurbanreconquistariveraffectingtheassociatedindigenousmicroorganisms |