EFFECT OF A 60-DAY INTERRUPTION DURING THE START-UP PERIOD OF TWO ANAEROBIC BIODIGESTORS TREATING A SLAUGHTERHOUSE EFFLUENT: A HYBRID REACTOR AND A BIOLOGICAL FILTER - Doi: http://dx.doi.org/10.5212/Publ.Exatas.v.14i1.059064

Autores

  • Ezequiel Nunes
  • Fábio Piccioni Maioque
  • Danianni Marinho Zardo
  • Ana Cláudia Barana

DOI:

https://doi.org/10.5212/publicatio.v14i01.959

Palavras-chave:

Anaerobic treatment, Biological filter, Hybrid reactor, Slaughterhouse effluent.

Resumo

This work aimed at evaluating the effect of a 60-day interruption during the start-up period of two anaerobic biodigestors, a Hybrid Reactor (HR) and a Biological Filter (BF), operating at room temperature while treating a slaughterhouse ef

fluent. The experiment was carried out in the Hydraulic Retention Times (HRT) often, eight, and six days. The 60-day interruption took place between eight and sixday HRTs. The Chemical Demand of Oxygen of the affluent of the reactors (CDO) was 3217.3 mgO2.L-1. The acidity/alkalinity relation of the effl uent of the reactors remained constant throughout the experiment, with average parameter values of 0.06 for the HR and BF. The average effl uent pH of the two reactors was 7.59. The COD removal rate of the reactors remained above 89%, with averages of 91.54 and 92.63% for the Hybrid Reactor and the Biological Filter, respectively. No influence of the 60-day interruption was observed in the start-up of the reactors.

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Edição

v. 14 n. 01 (2008)

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Artigos

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