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  • Volume 1, Issue 1

Performance evaluation of different wastewater treatment technologies operating in a developing country

Sílvia C. Oliveira, Marcos von Sperling
Published March 2011, 1 (1) 37-56; DOI: 10.2166/washdev.2011.022
Sílvia C. Oliveira
Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6627 – Escola de Engenharia, Bloco 1 – sala 4622, 31270-901 – Belo Horizonte, Brazil E-mail: silvia@desa.ufmg.br
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Marcos von Sperling
Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6627 – Escola de Engenharia, Bloco 1 – sala 4622, 31270-901 – Belo Horizonte, Brazil E-mail: silvia@desa.ufmg.br
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Abstract

This article analyses the performance of 166 wastewater treatment plants operating in Brazil, comprising six different treatment processes: septic tank + anaerobic filter, facultative pond, anaerobic pond + facultative pond, activated sludge, UASB reactors alone, UASB reactors followed by post-treatment. The study evaluates and compares the observed effluent quality and the removal efficiencies in terms of BOD, COD, TSS, TN, TP and FC with typical values reported in the technical literature. In view of the large performance variability observed, the existence of a relationship between design/operational parameters and treatment performance was investigated. From the results obtained, no consistent relationship between loading rates and effluent quality was found. The influence of loading rates differed from plant to plant, and the effluent quality was dictated by several combined factors related to design and operation.

  • developing countries
  • effluent quality
  • performance evaluation
  • wastewater treatment
  • Received August 6, 2010.
  • Accepted January 17, 2011.
  • © IWA Publishing 2011

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Journal of Water Sanitation and Hygiene for Development: 8 (1)
  Volume 1, Issue 1

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Performance evaluation of different wastewater treatment technologies operating in a developing country
Sílvia C. Oliveira, Marcos von Sperling
Journal of Water Sanitation and Hygiene for Development Mar 2011, 1 (1) 37-56; DOI: 10.2166/washdev.2011.022
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Performance evaluation of different wastewater treatment technologies operating in a developing country
Sílvia C. Oliveira, Marcos von Sperling
Journal of Water Sanitation and Hygiene for Development Mar 2011, 1 (1) 37-56; DOI: 10.2166/washdev.2011.022

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Keywords

developing countries
effluent quality
performance evaluation
wastewater treatment
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