Procesos de oxidación avanzada fenton para el tratamiento de las aguas residuales de la Empresa Pública de Rastro Catamayo
As a key part of the global food production process, slaughterhouses play an essential role. Unfortunately, most of the wastewater they generate is not adequately treated, resulting in high levels of pollution. People living near these facilities are at risk for health and environmental hazards due...
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| Formato: | bachelorThesis |
| Idioma: | spa |
| Publicado: |
2023
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| Subjects: | |
| Acceso en liña: | https://dspace.unl.edu.ec/jspui/handle/123456789/27291 |
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Engadir etiqueta | Summary: | As a key part of the global food production process, slaughterhouses play an essential role. Unfortunately, most of the wastewater they generate is not adequately treated, resulting in high levels of pollution. People living near these facilities are at risk for health and environmental hazards due to this wastewater. In order to address this problem, Fenton oxidation processes were investigated in order to evaluate their efficiency in the degradation of this wastewater. The Fenton oxidation process involves the addition of iron salts and hydrogen peroxide to an acidic medium to form -OH radicals, which help decompose organic compounds in the wastewater. During the study, several parameters were evaluated, such as BOD5, COD, alkalinity, hardness, pH, conductivity, total solids, turbidity and temperature. Through the analysis of the Fenton process and two response variables (COD and pH) using response surface methodology, 9 experiments were conducted that achieved COD removals above 80%. The optimum concentrations of ferrous sulfate (FeSO4) and hydrogen peroxide (H2O2) were determined to be 2.25 g to 3 g and 2 ml to 5 ml, respectively. This resulted in COD removal greater than 90%. The results showed that the Fenton process is efficient in the treatment of slaughterhouse wastewater, as it improved most of the initial physicochemical parameters, especially COD and BOD. In addition, the biodegradability index was 0.5, indicating that the wastewater is partially biodegradable. As a conclusion, the Fenton process is efficient and suitable for managing wastewater in slaughterhouses as a pretreatment. Key words: slaughterhouses, Fenton, wastewater, removal, COD. |
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