Treatment of nitrogen-rich wastewater by mixed aeration combined with bioaugmentation in a sequencing batch biofilm reactor: Biofilm formation and nitrogen-removal capacity analysis

Lu, Zhuoyin; Li, Zhifei; Cheng, Xiangju; Xie, Jun; Li, Xiangyang; Jiang, Xiaotian; Zhu, Dantong

doi:10.1016/j.jece.2023.109316

Cited by 12 publications

(3 citation statements)

References 74 publications

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“…The inbuilt MBBR enriched the genus norank_f__Caldilineaceae , which would benefit to denitrification in the aquarium. In addition to that, among the top 30 genus in the aquarium, the certain genera Pseudofulvimonas ( Lu et al, 2023 ), Gemmobacter ( Tan et al, 2020 ), Runella ( Zhao et al, 2017 ), Rhodobacter ( James et al, 2023 ), Flavobacterium ( Fan et al, 2021 ), Fusibacter ( Han et al, 2021 ), Reyranella, Mycobacterium ( Jiao et al, 2022 ), Hyphomicrobium ( Fan et al, 2021 ), Pseudoxanthomonas ( Jian et al, 2023 ), Novosphingobium ( Sun et al, 2022 ), Gordonia ( Tran et al, 2022 ), and Methyloversatilis ( Zhai et al, 2020 ) were all reported to be denitrifiers. Pseudofulvimonas , Novosphingobium , and Methyloversatilis were abundant (sequence number > 100) only in the suspended biofilms, while Flavobacterium , Fusibacter , and Pseudoxanthomonas were abundant only in the sediment (sequence number > 100; Figure 5C ).…”

Section: Resultsmentioning

confidence: 99%

“…The inbuilt MBBR enriched the genus norank_f__Caldilineaceae, which would benefit to denitrification in the aquarium. In addition to that, among the top 30 genus in the aquarium, the certain genera Pseudofulvimonas (Lu et al, 2023), Gemmobacter (Tan et al, 2020), Runella (Zhao et al, 2017), Rhodobacter (James et al, 2023), Flavobacterium (Fan et al, 2021), Fusibacter (Han et al, 2021), Reyranella, Mycobacterium (Jiao et al, 2022), Hyphomicrobium (Fan et al, 2021), Pseudoxanthomonas Heatmap for sequence numbers of the potential functions for nitrogen removal of the suspended biofilms and sediment in the aquarium. (Jian et al, 2023), Novosphingobium (Sun et al, 2022), Gordonia (Tran et al, 2022), and Methyloversatilis (Zhai et al, 2020) were all reported to be denitrifiers.…”

Section: Bacterial Communitymentioning

confidence: 99%

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

Zhou,

Liu,

Fan

et al. 2024

Front. Microbiol.

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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 (NH4+-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 NH4+-N on the 16th day, which caused the fish to die. The suspended biofilms could achieve the specific NH4+-N removal rate of 45.43 g/m3/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 (p < 0.05), reflected in denitrifying and nitrifying bacteria. In particular, the relative abundance of Nitrospira reached 1.4%, while the genus was barely found in sediments. The suspended biofilms showed potentials for nitrification function with the predicted sequence numbers of ammonia monooxygenase [1.14.99.39] and hydroxylamine dehydrogenase [EC:1.7.2.6] of 220 and 221, while the values of the sediment were only 5 and 1. This study created an efficient NH4+-N removal inbuilt MBBR for household aquariums and explored its mechanism to afford a basis for its utilization.

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Section: Resultsmentioning

confidence: 99%

“…The inbuilt MBBR enriched the genus norank_f__Caldilineaceae, which would benefit to denitrification in the aquarium. In addition to that, among the top 30 genus in the aquarium, the certain genera Pseudofulvimonas (Lu et al, 2023), Gemmobacter (Tan et al, 2020), Runella (Zhao et al, 2017), Rhodobacter (James et al, 2023), Flavobacterium (Fan et al, 2021), Fusibacter (Han et al, 2021), Reyranella, Mycobacterium (Jiao et al, 2022), Hyphomicrobium (Fan et al, 2021), Pseudoxanthomonas Heatmap for sequence numbers of the potential functions for nitrogen removal of the suspended biofilms and sediment in the aquarium. (Jian et al, 2023), Novosphingobium (Sun et al, 2022), Gordonia (Tran et al, 2022), and Methyloversatilis (Zhai et al, 2020) were all reported to be denitrifiers.…”

Section: Bacterial Communitymentioning

confidence: 99%

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

Zhou,

Liu,

Fan

et al. 2024

Front. Microbiol.

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“…These processes can be promoted by adding inoculants of bacteria, a process known as bioaugmentation. These bacteria can remove nitrogen through nitrification, denitrification, partial nitrification–anaerobic ammonium oxidation, and partial denitrification–anaerobic ammonium oxidation [ 50 , 52 ]. As with nitrogen, a high quantity of phosphate may also choke water bodies by promoting unnecessary growth in water bodies.…”

Section: Economic Importance Of Biofilmsmentioning

confidence: 99%

Microbial Biofilms: Applications, Clinical Consequences, and Alternative Therapies

Ali,

Zahra,

Kamthan

et al. 2023

Microorganisms

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Biofilms are complex communities of microorganisms that grow on surfaces and are embedded in a matrix of extracellular polymeric substances. These are prevalent in various natural and man-made environments, ranging from industrial settings to medical devices, where they can have both positive and negative impacts. This review explores the diverse applications of microbial biofilms, their clinical consequences, and alternative therapies targeting these resilient structures. We have discussed beneficial applications of microbial biofilms, including their role in wastewater treatment, bioremediation, food industries, agriculture, and biotechnology. Additionally, we have highlighted the mechanisms of biofilm formation and clinical consequences of biofilms in the context of human health. We have also focused on the association of biofilms with antibiotic resistance, chronic infections, and medical device-related infections. To overcome these challenges, alternative therapeutic strategies are explored. The review examines the potential of various antimicrobial agents, such as antimicrobial peptides, quorum-sensing inhibitors, phytoextracts, and nanoparticles, in targeting biofilms. Furthermore, we highlight the future directions for research in this area and the potential of phytotherapy for the prevention and treatment of biofilm-related infections in clinical settings.

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From Activated Sludge to Microalgae-Bacteria Consortia: A Settleability Improving Strategy Using Filamentous Algae in Seawater Condition

Wang,

Wei,

Wang

et al. 2024

Water Air Soil Pollut

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Treatment of nitrogen-rich wastewater by mixed aeration combined with bioaugmentation in a sequencing batch biofilm reactor: Biofilm formation and nitrogen-removal capacity analysis

Cited by 12 publications

References 74 publications

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

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

Microbial Biofilms: Applications, Clinical Consequences, and Alternative Therapies

From Activated Sludge to Microalgae-Bacteria Consortia: A Settleability Improving Strategy Using Filamentous Algae in Seawater Condition

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