Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment
The research used a coupling heterogeneous photocatalysis (TiO2-UVsolar) and an anaerobic biological process (Specific Methanogenic Activity Test) to study the treatment of leachate from a landfill in Norte de Santander (Colombia). It developed photocatalysis in a Composite Parabolic Collector (CPC)...
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| Format: | Online |
| Language: | spa |
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Universidad Pedagógica y Tecnológica de Colombia
2022
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13851 |
| _version_ | 1801706352297377792 |
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| author | Becerra Moreno, Dorance Caicedo Cáceres, Neldy Yareth Velásquez Lázaro, Claudia Marcela Machuca Martínez, Fiderman Soto Verjel, Joseph Wbeimar |
| author_facet | Becerra Moreno, Dorance Caicedo Cáceres, Neldy Yareth Velásquez Lázaro, Claudia Marcela Machuca Martínez, Fiderman Soto Verjel, Joseph Wbeimar |
| author_sort | Becerra Moreno, Dorance |
| collection | OJS |
| description | The research used a coupling heterogeneous photocatalysis (TiO2-UVsolar) and an anaerobic biological process (Specific Methanogenic Activity Test) to study the treatment of leachate from a landfill in Norte de Santander (Colombia). It developed photocatalysis in a Composite Parabolic Collector (CPC), H2O2 as oxidation assistant, and the combination of different TiO2 levels and pH modeled with a factorial design 32. In the biological test, for a maximum load of 4,500 mg. L-1 of Chemical Oxygen Demand (COD) leachate, 2.0 g. L-1 of Volatile Suspended Solids (VSS) inoculum, and a hydraulic retention time of 23 days, there were no significant COD removal percentages, evidencing the recalcitrant character of these leachates. In the Advanced Oxidation Process (AOP) there was mineralization in terms of DOC of 57%, which evidences the capacity of the process to support the pollutant load of the leachate. The combined process (AOP-Biological) allows additional mineralization in terms of DOC of 21% in the biological process, for a total contribution of the coupling of 78%, which shows the capacity of the AOP to convert toxic wastewater into one with characteristics more suitable for its subsequent degradation in anaerobic biological reactors. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-13851 |
| institution | Revista Ciencia en Desarrollo |
| language | spa |
| publishDate | 2022 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-138512023-06-26T20:43:15Z Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment Fotocatálisis heterogénea y un proceso biológico anaerobio para el tratamiento de lixiviados Becerra Moreno, Dorance Caicedo Cáceres, Neldy Yareth Velásquez Lázaro, Claudia Marcela Machuca Martínez, Fiderman Soto Verjel, Joseph Wbeimar Anaerobic Biodegradability, Coupling of treatments, Heterogeneous Photocatalysis, Leachate, Titanium Dioxide TiO2 Biodegradabilidad Anaeróbica, Acoplamiento de tratamientos, Fotocatálisis heterogénea, Lixiviados, Dióxido de Titanio TiO2. The research used a coupling heterogeneous photocatalysis (TiO2-UVsolar) and an anaerobic biological process (Specific Methanogenic Activity Test) to study the treatment of leachate from a landfill in Norte de Santander (Colombia). It developed photocatalysis in a Composite Parabolic Collector (CPC), H2O2 as oxidation assistant, and the combination of different TiO2 levels and pH modeled with a factorial design 32. In the biological test, for a maximum load of 4,500 mg. L-1 of Chemical Oxygen Demand (COD) leachate, 2.0 g. L-1 of Volatile Suspended Solids (VSS) inoculum, and a hydraulic retention time of 23 days, there were no significant COD removal percentages, evidencing the recalcitrant character of these leachates. In the Advanced Oxidation Process (AOP) there was mineralization in terms of DOC of 57%, which evidences the capacity of the process to support the pollutant load of the leachate. The combined process (AOP-Biological) allows additional mineralization in terms of DOC of 21% in the biological process, for a total contribution of the coupling of 78%, which shows the capacity of the AOP to convert toxic wastewater into one with characteristics more suitable for its subsequent degradation in anaerobic biological reactors. La investigación evalúa el tratamiento de lixiviados de vertederos mediante el acoplamiento de fotocatálisis solar TiO2-UV y un proceso biológico anaeróbico (prueba SMA). La fotocatálisis se desarrolla en un Colector Parabólico Compuesto de 0.83 m2 de área, tanque de tratamiento de 20 L y concentración inicial de lixiviados de 400 mg-L−1 DQO; H2O2 (dosis fija 300 mg.L−1) como auxiliar de oxidación y la combinación de diferentes niveles de TiO2 (100, 350, 600 mg.L−1) y pH (3, 6, 9). En el ensayo biológico, para una carga máxima de 4500 mg.L−1 de DQO de lixiviado, 2,0 g.L-1 de SVS de inóculo y un TRH de 23 días, no hubo porcentajes significativos de remoción de DQO, evidenciando el carácter recalcitrante de estos lixiviados. Durante el tratamiento fotocatalítico se presentó una mineralización de 57% COD (100 mg.L−1 TiO2; pH = 3; Energía acumulada = 60 kJ.L−1), lo que evidencia la capacidad del proceso para soportar la carga contaminante del lixiviado. El proceso combinado (AOP-Biológico) permite una mineralización adicional en el proceso biológico en términos de DOC del 21 %, para un aporte total del acoplamiento del 78 %, lo que demuestra la capacidad del AOP para convertir un efluente tóxico en uno con características más adecuadas para su posterior degradación en reactores biológicos anaerobios. Universidad Pedagógica y Tecnológica de Colombia 2022-07-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13851 10.19053/01217488.v13.n2.2022.13851 Ciencia En Desarrollo; Vol. 13 No. 2 (2022): Vol. 13 Núm. 2 (2022): Vol. 13 Núm. 2 (2022): Vol 13, Núm.2 (2022): Julio-Diciembre; 113-130 Ciencia en Desarrollo; Vol. 13 Núm. 2 (2022): Vol. 13 Núm. 2 (2022): Vol. 13 Núm. 2 (2022): Vol 13, Núm.2 (2022): Julio-Diciembre; 113-130 2462-7658 0121-7488 spa https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13851/12650 |
| spellingShingle | Anaerobic Biodegradability, Coupling of treatments, Heterogeneous Photocatalysis, Leachate, Titanium Dioxide TiO2 Biodegradabilidad Anaeróbica, Acoplamiento de tratamientos, Fotocatálisis heterogénea, Lixiviados, Dióxido de Titanio TiO2. Becerra Moreno, Dorance Caicedo Cáceres, Neldy Yareth Velásquez Lázaro, Claudia Marcela Machuca Martínez, Fiderman Soto Verjel, Joseph Wbeimar Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment |
| title | Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment |
| title_alt | Fotocatálisis heterogénea y un proceso biológico anaerobio para el tratamiento de lixiviados |
| title_full | Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment |
| title_fullStr | Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment |
| title_full_unstemmed | Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment |
| title_short | Heterogeneous photocatalysis and an anaerobic biological process for leachate treatment |
| title_sort | heterogeneous photocatalysis and an anaerobic biological process for leachate treatment |
| topic | Anaerobic Biodegradability, Coupling of treatments, Heterogeneous Photocatalysis, Leachate, Titanium Dioxide TiO2 Biodegradabilidad Anaeróbica, Acoplamiento de tratamientos, Fotocatálisis heterogénea, Lixiviados, Dióxido de Titanio TiO2. |
| topic_facet | Anaerobic Biodegradability, Coupling of treatments, Heterogeneous Photocatalysis, Leachate, Titanium Dioxide TiO2 Biodegradabilidad Anaeróbica, Acoplamiento de tratamientos, Fotocatálisis heterogénea, Lixiviados, Dióxido de Titanio TiO2. |
| url | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/13851 |
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