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| Format: | Artículo científico |
| Language: | en |
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Universidad del Valle
2020
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| Online Access: | https://www.redalyc.org/articulo.oa?id=291365764003 https://www.redalyc.org/journal/2913/291365764003/ https://www.redalyc.org/journal/2913/291365764003/html/ https://www.redalyc.org/journal/2913/291365764003/291365764003.epub https://www.redalyc.org/journal/2913/291365764003/movil |
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| _version_ | 1866571434496622592 |
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| author | Dorancé Becerra |
| author_facet | Dorancé Becerra |
| contents | Coupling of heterogeneous photocatalysis and aerobic biological process of activated sludge to treat wastewater containing Chlorpyrifos Dorancé Becerra Brenda L Arteaga Yuriney E Ochoa Andres F Barajas-Solano Janet B García-Martínez Luisa F Ramírez Ingeniería Pesticides Activated Sludges Zahn Wellenes Test Heterogeneous Photocatalysis Compound Parabolic Collector (CPC) Chlorpyrifos is one of the most commonly used pesticides in Colombia, being the most commonly used in the department of Norte de Santander, where its usefulness has been proven to protect crops of rice, coffee, etc. However, due to improper use by farmers, this has brought negative consequences for the environment and the health of people, which is why in 2014 there were 715 cases of poisoning by this substance in the department. In order to generate a technically viable alternative for the treatment of agricultural wastewater containing Chlorpyrifos and advancing in the decontamination of receiving water bodies, the effectiveness of the heterogeneous photocatalysis coupling in a Composite Parabolic Collector - CPC and an aerobic biological process of activated sludge in batch. The photocatalysis was performed in a CPC of 0.83 m2, using sunlight as a source of energy (20, 40 and 60 KJ.L-1) and titanium dioxide - TiO2 Degussa P25 as a catalyst (100, 350 and 600 mg. L-1), at a pH of 3, 6 and 9 and as an aerobic biological process the Zahn-Wellens Test was used. The photocatalytic process achieved a maximum DQO removal of 44.2% and COD of 35.3%, for optimal conditions 159.19 mg.L-1 of TiO2 and 3.47 pH units. The biological process managed to degrade 17.0% of DQO and 9.3% of COD for wastewater without pretreatment. After pretreatment by photocatalysis, the removal of the biological process increased to 88.2% DQO and 67.8% COD. From the results obtained, it is established that the coupling of heterogeneous photocatalysis and an aerobic biological process is a viable alternative for the treatment of agricultural wastewater with the presence of Chlorpyrifos. 2020 artículo científico 0123-3033 https://www.redalyc.org/articulo.oa?id=291365764003 https://www.redalyc.org/journal/2913/291365764003/ https://www.redalyc.org/journal/2913/291365764003/html/ https://www.redalyc.org/journal/2913/291365764003/291365764003.epub https://www.redalyc.org/journal/2913/291365764003/movil 10.25100/iyc.v22vi1i.8135 en http://www.redalyc.org/revista.oa?id=2913 Ingeniería y Competitividad application/pdf Universidad del Valle Ingeniería y Competitividad (Colombia) Num.1 Vol.22 |
| format | Artículo científico |
| id | redalyc_291365764003 |
| language | en |
| publishDate | 2020 |
| publisher | Universidad del Valle |
| spellingShingle | Coupling of heterogeneous photocatalysis and aerobic biological process of activated sludge to treat wastewater containing Chlorpyrifos Dorancé Becerra Ingeniería Pesticides Activated Sludges Zahn Wellenes Test Heterogeneous Photocatalysis Compound Parabolic Collector (CPC) Coupling of heterogeneous photocatalysis and aerobic biological process of activated sludge to treat wastewater containing Chlorpyrifos Dorancé Becerra Brenda L Arteaga Yuriney E Ochoa Andres F Barajas-Solano Janet B García-Martínez Luisa F Ramírez Ingeniería Pesticides Activated Sludges Zahn Wellenes Test Heterogeneous Photocatalysis Compound Parabolic Collector (CPC) Chlorpyrifos is one of the most commonly used pesticides in Colombia, being the most commonly used in the department of Norte de Santander, where its usefulness has been proven to protect crops of rice, coffee, etc. However, due to improper use by farmers, this has brought negative consequences for the environment and the health of people, which is why in 2014 there were 715 cases of poisoning by this substance in the department. In order to generate a technically viable alternative for the treatment of agricultural wastewater containing Chlorpyrifos and advancing in the decontamination of receiving water bodies, the effectiveness of the heterogeneous photocatalysis coupling in a Composite Parabolic Collector - CPC and an aerobic biological process of activated sludge in batch. The photocatalysis was performed in a CPC of 0.83 m2, using sunlight as a source of energy (20, 40 and 60 KJ.L-1) and titanium dioxide - TiO2 Degussa P25 as a catalyst (100, 350 and 600 mg. L-1), at a pH of 3, 6 and 9 and as an aerobic biological process the Zahn-Wellens Test was used. The photocatalytic process achieved a maximum DQO removal of 44.2% and COD of 35.3%, for optimal conditions 159.19 mg.L-1 of TiO2 and 3.47 pH units. The biological process managed to degrade 17.0% of DQO and 9.3% of COD for wastewater without pretreatment. After pretreatment by photocatalysis, the removal of the biological process increased to 88.2% DQO and 67.8% COD. From the results obtained, it is established that the coupling of heterogeneous photocatalysis and an aerobic biological process is a viable alternative for the treatment of agricultural wastewater with the presence of Chlorpyrifos. 2020 artículo científico 0123-3033 https://www.redalyc.org/articulo.oa?id=291365764003 https://www.redalyc.org/journal/2913/291365764003/ https://www.redalyc.org/journal/2913/291365764003/html/ https://www.redalyc.org/journal/2913/291365764003/291365764003.epub https://www.redalyc.org/journal/2913/291365764003/movil 10.25100/iyc.v22vi1i.8135 en http://www.redalyc.org/revista.oa?id=2913 Ingeniería y Competitividad application/pdf Universidad del Valle Ingeniería y Competitividad (Colombia) Num.1 Vol.22 |
| title | Coupling of heterogeneous photocatalysis and aerobic biological process of activated sludge to treat wastewater containing Chlorpyrifos |
| topic | Ingeniería Pesticides Activated Sludges Zahn Wellenes Test Heterogeneous Photocatalysis Compound Parabolic Collector (CPC) |
| url | https://www.redalyc.org/articulo.oa?id=291365764003 https://www.redalyc.org/journal/2913/291365764003/ https://www.redalyc.org/journal/2913/291365764003/html/ https://www.redalyc.org/journal/2913/291365764003/291365764003.epub https://www.redalyc.org/journal/2913/291365764003/movil |