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A new kinetic model to predict substrate inhibition and better efficiency in an airlift reactor on deammonification process.
Bonassa, Gabriela; Chiapetti Bolsan, Alice; Venturin, Bruno; Celant De Prá, Marina; Goldschmidt Antes, Fabiane; Ester Hollas, Camila; Johann, Gracielle; Coldebella, Arlei; Kunz, Airton.
Afiliação
  • Bonassa G; Western Paraná State University, 85819-110 Cascavel, PR, Brazil.
  • Chiapetti Bolsan A; Western Santa Catarina University, 89600-000 Joaçaba, SC, Brazil.
  • Venturin B; Western Paraná State University, 85819-110 Cascavel, PR, Brazil.
  • Celant De Prá M; Federal University of Technology - Parana (UTFPR), 85660-000 Dois Vizinhos, PR, Brazil.
  • Goldschmidt Antes F; Embrapa Suínos e Aves, 89715-899 Concórdia, SC, Brazil.
  • Ester Hollas C; Western Paraná State University, 85819-110 Cascavel, PR, Brazil.
  • Johann G; Federal University of Technology - Parana (UTFPR), 85660-000 Dois Vizinhos, PR, Brazil.
  • Coldebella A; Embrapa Suínos e Aves, 89715-899 Concórdia, SC, Brazil.
  • Kunz A; Western Paraná State University, 85819-110 Cascavel, PR, Brazil; Embrapa Suínos e Aves, 89715-899 Concórdia, SC, Brazil. Electronic address: airton.kunz@embrapa.br.
Bioresour Technol ; 319: 124158, 2021 Jan.
Article em En | MEDLINE | ID: mdl-33007698
A collection of kinetic models to explore the bacteria pathway inhibition by high-ammonia during deammonification process was fitted. The main goal was to determine the substrate concentration to operate the deammonification with efficiency, performance and low impact to ANAMMOX and ammonia-oxidizing bacteria (AOB) by substrate. A new mathematical model was created to describe the deammonification behavior, since the empirical theoretical models showed inconsistent parameters to describe the process. The proposed model showed significant prediction to the estimable parameters and according to it, until 550 mg NH3-N L-1 no inhibitions by ammonia and nitrite were observed. However, concentrations higher than this promote the decrease on specific bacterial activity and nitrite accumulation, since it was not quickly consumed by the bacteria. The proposed model can be applied to predict microorganism affinity and inhibition by substrate over a wide range of ammonia concentrations (<900 mgNH3-N L-1) in reactors treating high-ammonia concentration swine wastewater.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reatores Biológicos / Nitrogênio Tipo de estudo: Prognostic_studies / Risk_factors_studies Limite: Animals Idioma: En Revista: Bioresour Technol Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
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Imprimir
XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reatores Biológicos / Nitrogênio Tipo de estudo: Prognostic_studies / Risk_factors_studies Limite: Animals Idioma: En Revista: Bioresour Technol Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido