<b>Physicochemical study of pH, alkalinity and total acidity in a system composed of Anaerobic Baffled Reactor in series with Upflow Anaerobic Sludge Blanket reactor in the treatment of pig farming wastewater</b> - doi: 10.4025/actascitechnol.v35i3.14069

Autores

  • Erlon Lopes Pereira Universidade de São Paulo
  • Cláudio Milton Montenegro Campos Universidade Federal de Lavras
  • Fabricio Motteran Universidade de Sao Paulo

DOI:

https://doi.org/10.4025/actascitechnol.v35i3.14069

Palavras-chave:

Ripley alkalinity, reactor buffering capacity, volatile fatty acids, bicarbonate alkalinity, wastewater treatment

Resumo

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).

 

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Biografia do Autor

Erlon Lopes Pereira, Universidade de São Paulo

Engenhaeiro Agricola pela Universidade Federal de Lavras. Mestrando em Recursos Hí­dricos pela Universidade Federal de Lavras- MG. Bolsista CAPES na área de saneamento ambiental

Cláudio Milton Montenegro Campos, Universidade Federal de Lavras

Possui graduação em Engenharia Civil com ênfase em estruturas pela Universidade Federal de Minas Gerais (1978), mestrado em Saneamento, Meio Ambiente e Recursos Hí­dricos pela Universidade Federal de Minas Gerais (1985) e doutorado em Environmental Engineering - University of Newcastle Upon Tyne (1990). Atualmente é Professor Associado IV da Universidade Federal de Lavras (UFLA). Possui experiência na área de Engenharia Civil, com ênfase em hidráulica e saneamento, atuando principalmente nos seguintes seguimentos: esgoto doméstico, água residuária de laticí­nio, suí­no e café, objetivando produção energética, fertirrigação e compostagem.

Fabricio Motteran, Universidade de Sao Paulo

Biólogo. Mestre em Ciências. Departamento de Engenharia. Universidade Federal de Lavras.Doutorando em Hidraulica e Sanemaneto pela USP.

Publicado

2013-02-27

Como Citar

Pereira, E. L., Campos, C. M. M., & Motteran, F. (2013). <b>Physicochemical study of pH, alkalinity and total acidity in a system composed of Anaerobic Baffled Reactor in series with Upflow Anaerobic Sludge Blanket reactor in the treatment of pig farming wastewater</b> - doi: 10.4025/actascitechnol.v35i3.14069. Acta Scientiarum. Technology, 35(3), 477–483. https://doi.org/10.4025/actascitechnol.v35i3.14069

Edição

Seção

Engenharia Quí­mica

 

0.8
2019CiteScore
 
 
36th percentile
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0.8
2019CiteScore
 
 
36th percentile
Powered by  Scopus

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