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Article . 2018 . Peer-reviewed
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Revista DAE
Article . 2018
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Otimização da modelação de remoção de nitrogênio em sistemas de lodo ativado

Authors: Heraldo Antunes Silva Filho; Adrianus van Haandel; Lincoln Soares Mota;

Otimização da modelação de remoção de nitrogênio em sistemas de lodo ativado

Abstract

A remoção de nitrogênio tem sido tradicionalmente realizada em sistemas de lodo ativado de fluxo contínuo (FC), mas recentemente a remoção em sistemas de lodos ativados operando sob um regime de alimentação em bateladas sequenciais (RBS) tem aplicação crescente. Neste trabalho se desenvolve um modelo de nitrificação e desnitrificação no sistema de lodo ativado e se comparam os aspectos mais importantes de quatro variantes do sistema em termos da capacidade de remoção de nitrogênio. Mostra-se que a extensão máxima da remoção de nitrogênio é determinada pelas características do esgoto e por constantes cinéticas, mas num grau importante, também pelo tipo de sistema de remoção de nitrogênio (FC ou RBS) e pela natureza do lodo (floculento ou granulado). O sistema RBS com nitrificação e desnitrificação simultânea num reator unitário com lodo aeróbio granular mostrou ter a maior capacidade de remoção de nitrogênio. O sistema RBS com reatores dedicados para nitrificação e desnitrificação é o melhor quando se usa lodo floculento.

Keywords

Environmental sciences, modelação, Environmental engineering, otimização, GE1-350, TA170-171, Environmental technology. Sanitary engineering, TD1-1066, remoção de nitrogênio

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold