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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Universidade Estadual de Maringá
2013
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=303228846012 |
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- Physicochemical study of pH, alkalinity and total acidity in a system composed of Anaerobic Baffled Reactor (ABR) in series with Upflow Anaerobic Sludge Blanket reactor (UASB) in the treatment of pig farming wastewater Erlon Lopes Pereira Cláudio Milton Montenegro Campos Fabrício Motteran Ingeniería Ripley alkalinity volatile fatty acids wastewater treatment bicarbonate alkalinity reactor buffering capacity The anaerobic digestion efficiency varies according to several factors, such as: substrate carbon / nitrogen ratio, temperature, pH, alkalinity, and acidity. The main objective of this study was to describe the behavior of pH, alkalinity and total acidity of the affluent and effluent of a swine wastewater treatment system, in order to better understand the physicochemical process. The pH was measured immediately after collecting, and the methods of Jenkins et al. (1983) and Ripley et al. (1986) were used for quantifying the alkalinity, and the potentiometric method, for the acidity. The treatment system worked without large pH variation concerning the affluent and effluent of each unit, indicating good buffering conditions. The Ripley ratio (IA / PA) is characteristic for each effluent and dependent on the stage at which the reactor is working, and was determined as 1.96 for hydrolysis and acidification tank, 1.56 for reactors working on first stage (ABR), and 1.44 for reactors working on second stage (UASB). 2013 artículo científico 1806-2563 https://www.redalyc.org/articulo.oa?id=303228846012 en http://www.redalyc.org/revista.oa?id=3032 Acta Scientiarum. Technology application/pdf Universidade Estadual de Maringá Acta Scientiarum. Technology (Brasil) Num.3 Vol.35