Matter of removal of organic (COD) behavior and nitrogen ammoniacal in bed reactor of structured operated under intermittent aeration

Authors

  • Camila Zoe Correa Universidade Tecnológica Federal do Paraná/Mestrado
  • Katia Valeria Marques Cardoso Prates Universidade Tecnológica Federal do Parana/Docente
  • Camila Azevedo Universidade Estadual de Londrina/Graduação
  • Deize Dias Lopes Universidade Estadual de Londrina/Docente
  • Eduardo Aparecido Rodrigues Universidade Tecnológica Federal do Parana/Graduação
  • Giselly Peterlini Universidade Tecnológica Federal do Parana/Graduação
  • Ana Claudia Barana Universidade Estadual de Ponta Grossa/Docente

DOI:

https://doi.org/10.14808/sci.plena.2016.034201

Keywords:

Intermittent aeration, Reactor structured bed, Polyurethane foam.

Abstract

The arms of this study was to evaluate the behavior of the removal of organic matter (Chemical Oxygen Demand - COD) and nitrogen (N-ammonia – NH4+) in a reactor of structured and continuous stream bed, operated with intermittent aeration (AI). The reactor used had useful volume of 9.4 L and vertical structures was filled with polyurethane foam. The system was operated for 38 days under intermittent aeration (4h aerated (EA) and non-aerated 2 h (NA)) with recirculation rate of 3 times the inlet flow. The hydraulic retention time (HRT) worked was 16 h. During reactor operation analyzes were performed for determination of pH, alkalinity, temperature, COD, N-ammonia (NH4++),  nitrite (N-NO2-),   nitrate  (N-NO3-), Kjeldhl Total Nitrogen (NTK) and volatile suspended solids (VSS ). The analyzes were performed 380 days for 3 cycles IA, a total of 18 hours of obtaining data of first effluent collections being made at 1 hr to determine the consumption pattern of COD and N- NH4+. The reactor reached an average efficiency of 88% in terms of removing DQOT and 72% removal of NTK cells during the 38 days of operation. From the results obtained in the 18 hour analysis found average removal of N-NH4+ and DQOT, the EA phase of 92% ± 1 and 49 ± 8% AN and the phase 4 90 ± 46% and ± 6% respectively. From the results it was concluded that the AI did not affect significantly the DQOT removal percentage and ammonia-N in the reactor.

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Published

2016-03-17

How to Cite

Correa, C. Z., Prates, K. V. M. C., Azevedo, C., Lopes, D. D., Rodrigues, E. A., Peterlini, G., & Barana, A. C. (2016). Matter of removal of organic (COD) behavior and nitrogen ammoniacal in bed reactor of structured operated under intermittent aeration. Scientia Plena, 12(3). https://doi.org/10.14808/sci.plena.2016.034201

Issue

Vol. 12 No. 3 (2016): March/Março 2016

Section

Articles

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