Innovative inbuilt moving bed biofilm reactor for nitrogen removal applied in household aquarium

An innovative inbuilt moving bed biofilm reactor (MBBR) was created to protect fish from nitrogen in a household aquarium. During the 90 experimental days, the ammonia nitrogen (NH -N) concentration in the aquarium with the inbuilt MBBR was always below 0.5 mg/L, which would not threaten the fish. C...

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Bibliographic Details
Published in:Frontiers in microbiology 2024-04, Vol.15, p.1373119
Main Authors: Zhou, Xiaolin, Liu, Haicheng, Fan, Xing, Xu, Xinhao, Gao, Yuan, Bi, Xuejun, Cheng, Lihua, Huang, Shujuan, Zhao, Fangchao, Yang, Tang
Format: Article
Language:English
Subjects:
ammonia
biofilm
Microbiology
moving bed biofilm reactor
nitrification
wastewater treatment
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Summary:An innovative inbuilt moving bed biofilm reactor (MBBR) was created to protect fish from nitrogen in a household aquarium. During the 90 experimental days, the ammonia nitrogen (NH -N) concentration in the aquarium with the inbuilt MBBR was always below 0.5 mg/L, which would not threaten the fish. Concurrently, nitrite and nitrate nitrogen concentrations were always below 0.05 mg/L and 4.5 mg/L, respectively. However, the blank contrast aquarium accumulated 1.985 mg/L NH -N on the 16th day, which caused the fish to die. The suspended biofilms could achieve the specific NH -N removal rate of 45.43 g/m /d. Biofilms presented sparsely with filamentous structures and showed certain degrees of roughness. The bacterial communities of the suspended biofilms and the sediment were statistically different (
ISSN:1664-302X
1664-302X
DOI:10.3389/fmicb.2024.1373119