Effects of biotin on promoting anammox bacterial activity.

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.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Li Q,Chen J,Liu GH,Xu X,Zhang Q,Wang Y,Yuan J,Li Y,Qi L,Wang H

doi

10.1038/s41598-021-81738-y

subject

Has Abstract

pub_date

2021-01-21 00:00:00

pages

2038

issue

1

issn

2045-2322

pii

10.1038/s41598-021-81738-y

journal_volume

11

pub_type

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