Performance and microbial ecology of a novel moving bed biofilm reactor process inoculated with heterotrophic nitrification-aerobic denitrification bacteria for high ammonia nitrogen wastewater treatment

Zhang, Qian; Chen, Xue; Zhang, Zhengyi; Luo, Wandong; Wu, Heng; Zhang, Lijie; Zhang, Xiaoping; Zhao, Tiantao

doi:10.1016/j.biortech.2020.123813

Cited by 86 publications

(8 citation statements)

References 35 publications

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“…Due to its halophily, this genus has good potential for application in nitrogen removal from wastewater. A novel moving-bed biofilm reactor constructed by inoculation with heterotrophic nitrifying–aerobic nitrifying bacteria, was proposed to dispose of high ammonia nitrogen wastewater [ 56 ], and species within this genus with nitrification and denitrification abilities can be applied to biotreatment of hypersaline wastewater [ 57 ]. Halomonas profundus 13 is a weak halophile, growing at NaCl concentrations ranging from 2–18% (optimum 8%, w/v), and can use more carbon sources such as glucose, arabinose, mannitol, maltose, gluconate, capric acid, adipic acid, malic acid, citric acid and phenylacetic acid according to the API 20NE.…”

Section: Discussionmentioning

confidence: 99%

Section: Comparison Of the Two Strainsmentioning

confidence: 99%

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Complete genome sequencing and comparison of two nitrogen-metabolizing bacteria isolated from Antarctic deep-sea sediment

et al. 2022

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Background Bacteria are an essential component of the earth`s biota and affect circulation of matters through their metabolic activity. They also play an important role in the carbon and nitrogen cycle in the deep-sea environment. In this paper, two strains from deep-sea sediments were investigated in order to understand nitrogen cycling involved in the deep-sea environment. Results In this paper, the basic genomic information of two strains was obtained by whole genome sequencing. The Cobetia amphilecti N-80 and Halomonas profundus 13 genome sizes are 4,160,095 bp with a GC content of 62.5% and 5,251,450 bp with a GC content of 54.84%. Through a comparison of functional analyses, we predicted the possible C and N metabolic pathways of the two strains and determined that Halomonas profundus 13 could use more carbon sources than Cobetia amphilecti N-80. The main genes associated with N metabolism in Halomonas profundus 13 are narG, narY, narI, nirS, norB, norC, nosZ, and nirD. On the contrast, nirD, using NH4+ for energy, plays a main role in Cobetia amphilecti N-80. Both of them have the same genes for fixing inorganic carbon: icd, ppc, fdhA, accC, accB, accD, and accA. Conclusion In this study, the whole genomes of two strains were sequenced to clarify the basic characteristics of their genomes, laying the foundation for further studying nitrogen-metabolizing bacteria. Halomonas profundus 13 can utilize more carbon sources than Cobetia amphilecti N-80, as indicated by API as well as COG and KEGG prediction results. Finally, through the analysis of the nitrification and denitrification abilities as well as the inorganic carbon fixation ability of the two strains, the related genes were identified, and the possible metabolic pathways were predicted. Together, these results provide molecular markers and theoretical support for the mechanisms of inorganic carbon fixation by deep-sea microorganisms.

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Section: Discussionmentioning

confidence: 99%

Section: Comparison Of the Two Strainsmentioning

confidence: 99%

Complete genome sequencing and comparison of two nitrogen-metabolizing bacteria isolated from Antarctic deep-sea sediment

et al. 2022

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“…When chloride ions coexist with Cu atoms in a solution, a series of subsequent reactions occur, as shown in Equations ( 2)- (6). Firstly, with the start of GRR, Cl − ions were absorbed on the Cu surface to yield (CuCl − ) ad .…”

Section: The Preparation Principle Of Electrodementioning

confidence: 99%

“…The excessive discharge of such wastewater will lead to a series of environmental problems such as eutrophication and black odor of water bodies, which seriously endangers human health and ecosystem stability [3][4][5]. Traditional treatment technologies such as biological nitrification/denitrification [6,7], breakpoint chlorination [8,9] and air stripping [10] have been widely used. Comparably, electrochemical oxidation technology is a promising candidate owing to the advantages of simple operation, cost-effectiveness and good tolerance to toxic pollutants [11,12].…”

Section: Introductionmentioning

confidence: 99%

A Petal-like Structured NiCuOOH-NF Electrode by a Sonochemical Combined with the Electrochemical Method for Ammonia Oxidation Reaction

et al. 2023

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Direct electrochemical oxidation, as an economical and efficient method, has recently received increasing attention for ammonia-nitrogen wastewater treatment. Developing a low-cost, efficient catalytic electrode is the key to solve the problem of sluggish ammonia oxidation reaction (AOR) kinetics. In this study, a three-dimensional (3D) Ni foam electrode coated with NiCuOOH petal-like cluster structures was prepared using a simple sonochemical method combined with a surface electrochemical reconstruction strategy. This structure has a large surface area and abundant NiCuOOH active sites, giving a good premise for extraordinary electrocatalytic activity of AOR. The results show that the maximum current density for AOR reaches 97.8 mA cm−2 at 0.60 V vs. saturated calomel electrode (SCE). Additionally, 96.53% of NH4+-N removal efficiency and 63.12% of TN removal efficiency were acquired in the electrolysis system based on the NiCuOOH-NF electrode, as well as a good stability for at least 24 h. It is a promising flow-through anode for the clean treatment of ammonia-nitrogen wastewater.

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“…In the MBBR system, the biofilm carriers play an important role in determining the overall efficiency and performance of treating wastewater [19,22]. Biofilm carriers for MBBR can be classified by non-porous or porous carriers such as activated carbon particles [23], fireclay [24], natural materials [25], and materials supported on polymers including polyethylene cylinder [26], polypropylene [27], poly(vinyl chloride) [28], polyurethane foam [29], poly(vinyl alcohol) gel [30]. Among mentioned carriers, non-porous carriers such as polyethylene cylinders (Kalnes types) possess a low specific surface area (about 300-500 m 2 /m 3 ) and are prone to the detachment of biofilm given their smooth surface [31].…”

Section: Graphical Abstract 1 Introductionmentioning

confidence: 99%

Novel carrier for seafood wastewater treatment using moving bed biofilm reactor system

Phan

Pham

Duong

et al. 2022

Environmental Engineering Research

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In this work, seafood wastewater was treated by using MBBR reactor over a novel carrier (PUF-PVA gel) derived from the combination of a porous (PUF) and hydrophilic surface (PVA gel). A freezing-thawing method was used for the preparation of the novel PUF-PVA gel which is reported for the first time. Experimental results indicated that PUF-PVA gel carrier which possesses an excellent textural structure (specific surface area of 3.4 m2/g, pore size in the range of 10 -40 μm and hydrophilic surface) accounts for faster water immersion and better microbial adhesion, resulting in the biofilm content attached at the start-up stage 2.4 times higher relative to conventional PUF carrier alone. The MBBR system can be operated stably at a hydraulic retention time (HRT) of 7 hours in which the organic loading rate ranged from 2.5 kg COD/m3.day to 5.1 kg COD/m3.day. When operated at the organic loading rate of 2.5 kg COD/m3.day, the maximum COD and the nitrogen removal efficiency of MBBR based on the PUF-PVA gel carrier were 92 ± 0.6% and 89 ± 3.4%, respectively, which is higher than that of the PUF carrier.

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Performance and microbial ecology of a novel moving bed biofilm reactor process inoculated with heterotrophic nitrification-aerobic denitrification bacteria for high ammonia nitrogen wastewater treatment

Cited by 86 publications

References 35 publications

Complete genome sequencing and comparison of two nitrogen-metabolizing bacteria isolated from Antarctic deep-sea sediment

Complete genome sequencing and comparison of two nitrogen-metabolizing bacteria isolated from Antarctic deep-sea sediment

A Petal-like Structured NiCuOOH-NF Electrode by a Sonochemical Combined with the Electrochemical Method for Ammonia Oxidation Reaction

Novel carrier for seafood wastewater treatment using moving bed biofilm reactor system

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