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Doctoral Thesis
DOI
10.11606/T.18.2006.tde-22092006-105702
Document
Author
Full name
Moacir Messias de Araújo Junior
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2006
Supervisor
Committee
Zaiat, Marcelo (President)
Alem Sobrinho, Pedro
Foresti, Eugenio
Kato, Mario Takayuki
Ribeiro, Rogers
Title in Portuguese
Reator combinado anaeróbio-aeróbio de leito fixo para remoção de matéria orgânica e nitrogênio de água residuária de indústria produtora de lisina
Keywords in Portuguese
água residuária industrial
desnitrificação
nitrificação
reator de leito fixo
tratamento combinado
Abstract in Portuguese
Grande parte das indústrias alimentícias, principalmente as que utilizam processos fermentativos, geram efluentes com altas concentrações de material orgânico e nutrientes (principalmente de nitrogênio), necessitando de sistemas complexos para o seu tratamento. Neste sentido, o presente trabalho foi proposto com o intuito de desenvolver um sistema compacto que possa operar como única unidade de tratamento de águas residuárias industriais, tanto na remoção de matéria orgânica quanto na remoção de nitrogênio, com baixo consumo de energia e baixa produção de lodo. Constatou-se, portanto, a viabilidade técnica do reator combinado anaeróbio-aeróbio vertical de leito fixo para o tratamento de efluentes industriais contendo matéria orgânica (1400 mg DQO/l) e nitrogênio (160 mg N/l). A melhor condição operacional do reator foi conseguida aplicando-se tempo de detenção hidráulica (TDH) de 35 h (21 h na zona anaeróbia e 14 h na zona aeróbia), com base no volume útil do reator, e razão de recirculação (R) igual a 3,5, apresentado eficiências na remoção de DQO, NTK e NT de 97%, 94% e 77%, respectivamente, com concentrações efluentes médias de 36 '+ OU -' 10 mg DQO/l, 2 '+ OU -' 1 mg N-'NH IND.4' POT.+'/l,8 '+ OU -' 3 mg N-org/l, 1 '+ OU -' 1 mg N-'NO IND.2'POT.-'/l e 26 '+ OU -' 23 mg N-'NO IND.3'POT.-'/l. O reator vertical de leito fixo, operando unicamente em condição anaeróbia, apresentou eficiências médias na remoção de DQO de 43 '+ OU -' 9%, 60 '+ OU -' 9% e 70 '+ OU -' 6%, respectivamente para TDH aplicados de 11 h, 17 h e 21 h
Title in English
Upflow anaerobic-aerobic combined fixed bed reactor for organic matter and nitrogen removal from lysine industry wastewater
Keywords in English
combined treatment
denitrification
fixed bed reactor
industrial wastewater
nitrification
Abstract in English
Most of the food industries, mainly the ones that use fermentative processes, generates effluent with high concentrations of organic matter and nutrients (nitrogen mainly), needing of complex systems for its treatment. In this direction, the present work was considered to develop a compact system that can operate as only unit of industrial wastewater treatment, in the removal of organic matter and nitrogen, with low consumption of energy and low sludge production. Therefore, the viability of the upflow anaerobic-aerobic combined fixed bed reactor for the treatment of industrial effluent with organic matter (1400 mg COD/l) and nitrogen (160 mg N/l) was evidenced. The best operational condition of the reactor was obtained applying 35 h of hydraulic retention time (21 h in the anaerobic zone and 14 h in the aerobic zone) and recycle ratio (R) of 3.5. In this condition, the COD, TKN and TN efficiencies removal were of 97%, 94% and 77%, respectively, with average effluent concentrations of 10 '+ OU -' 36 mg COD/l, 2 '+ OU -' 1 mg N-'NH IND.4'POT.+'/l, 8 '+ OU -' 3 mg N-org/l, 1 '+ OU -' 1 mg N-'NO IND.2'POT.-'/l and 26 '+ OU -' 23 mg N-'NO IND.3'POT.-'/l. The up-flow fixed bed reactor, operating only in anaerobic condition, presented average efficiencies in the COD removal of 43 '+ OU -' 9%, 60 '+ OU -' 9% and 70 '+ OU -' 6%, for HRT applied of 11 h, 17 h and 21 h, respectively
 
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Araujo_Jr_MM.pdf (4.76 Mbytes)
Publishing Date
2006-09-25
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • ARAÚJO JR, M. M. de, and ZAIAT, M. An Upflow Fixed-Bed Anaerobic Aerobic Reactor for Removal of Organic Matter and Nitrogen from L-lysine Plant Wastewater [doi:10.1139/L09-028]. Canadian Journal of Civil Engineering [online], 2009, vol. 36, p. 1085-1094.
  • Prêmio CAPES de Teses - Menção Honrosa para a Tese "Reator combinado anaeróbio-aeróbio de leito fixo para remoção de matéria orgânica e nitrogênio..." de Moacir Messias Araujo Jr - CAPES
All rights of the thesis/dissertation are from the authors
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