Effects of biotin on promoting anammox bacterial activity.
Sci Rep
; 11(1): 2038, 2021 01 21.
Article
em En
| MEDLINE
| ID: mdl-33479480
ABSTRACT
Anaerobic ammonium oxidation (anammox) bacteria significantly improve the efficiency and reduce cost of nitrogen removal in wastewater treatment plants. However, their slow growth and vulnerable activity limit the application of anammox technology. In this paper, the enhancement of biotin on the nitrogen removal activity of anammox bacteria in short-term batch experiments was studied. We found that biotin played a significant role in promoting anammox activity within a biotin concentration range of 0.1-1.5 mg/L. At a biotin concentration of 1.0 mg/L, the total nitrogen removal rate (NRR) increased by 112%, extracellular polymeric substance (EPS) secretion and heme production significantly improved, and anammox bacterial biomass increased to maximum levels. Moreover, the predominant genus of anammox bacteria was Candidatus Brocadia.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Bactérias Anaeróbias
/
Biotina
/
Matriz Extracelular de Substâncias Poliméricas
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Nitrogênio
Limite:
Humans
Idioma:
En
Revista:
Sci Rep
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China