Start-up of the Simultaneous Nitrification, Anammox, and Denitrification (SNAD) Reactor and Efficacy of a Small Amount of Organic Carbon

Liu, Wei; Nasry, Allama Al Naim Bin; Zhao, Jianqiang; Laoyongxay, Huexay; Dai, Wei; Zhao, Qian

doi:10.1007/s11270-019-4318-3

Cited by 9 publications

(4 citation statements)

References 36 publications

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“…Nitrifying bacteria are found in most aerobic environments in which the mineralization of organic matter takes place. They are widespread in soil, in fresh, brackish and marine waters, as well as in sewage, sediment and compost [40][41][42][43][44]. Nitrifiers occurring in sewage treatment plants tend to concentrate and grow in tight aggregates, forming structures called cysts.…”

Section: Nitrification 231 the Morphology And Ecology Of Nitrifying Bacteria And The Biochemistry Of The Nitrification Processmentioning

confidence: 99%

The Participation of Microbiota in the Transformation of Nitrogen Compounds in the Soil—A Review

2021

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Due to the growing costs of agricultural production and the need to protect the environment, there has been a need to intensify activities leading to an increase in the effectiveness of natural biological processes. These measures should increase the biodiversity of the environment, enable the adaptation of microorganisms and the protection of plants and soils against the background of the concept of sustainable agricultural development. The soil is an important environment in which many elements are transformed, including nitrogen necessary for the proper yielding of plants. The aim of the article is to present the microbiological aspect of nitrogen transformation, starting with a review of historical findings and then to discuss the progress of the latest developments that have contributed to a detailed understanding of the biochemical reactions occurring during nitrogen transformation in soil. Moreover, the aim of the study is to present the current state of knowledge on the dynamics of nitrogen uptake and conversion by various species of microorganisms and the relationship between the activity of nitrogen microorganisms and nitrogen uptake by plants. The article also includes the latest information on the possibility of using microbiological biostimulants supporting plant growth (PGPR) and protection against the effects of phytopathogens.

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Section: Nitrification 231 the Morphology And Ecology Of Nitrifying Bacteria And The Biochemistry Of The Nitrification Processmentioning

confidence: 99%

The Participation of Microbiota in the Transformation of Nitrogen Compounds in the Soil—A Review

2021

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“…Microbial simultaneous nitrification-denitrification process is the conversion of the ammonium ion to nitrogen gas in a single bioreactor. The process is dependent on flow characteristics, reaction kinetics, mass loading of readily biodegradable chemical oxygen demand (rbCOD) and DO concentration (Liu et al, 2019). It is a new technology for denitrification of wastewater that carries out nitrification and denitrification processes under the same operating conditions in a same reactor.…”

Section: Modified Biological Wastewater Treatment Technologymentioning

confidence: 99%

Perspective for Emission and Control of Nitrous Gas in Biological Wastewater Treatment

Liu¹,

Chen²,

Wang³

et al. 2019

J ENVIRON INFORM LET

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Being the third most significant anthropogenic greenhouse gas, nitrous gas (N2O) has 300-fold stronger effect than carbon dioxide (CO2) and 4 ~ 30-fold stronger effect than methane (CH4). In this study, the main sources and mechanisms of N2O emission from biological wastewater treatment were reviewed, and the possible mitigation strategies were discussed. Parameters including dissolved oxygen, temperature, pH, organic carbon, and nitrite concentration have influences on the emission of N2O. The possible mitigation strategies were put forward by controlling these parameters in biological wastewater treatment and inducing modified technologies such as simultaneous nitrification-denitrification, denitrifying phosphorus removal, and aerobic granular sludge. In order to obtain a near-zero N2O emission, applying typical catalysts in the nitrification or denitrification tank to decompose N2O into harmless gas is recommended. Moreover, a method of developing photochemical processes to transform N2O could also be suggested.

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“…In addition, Miao et al found that the dominant anammox taxon was Candidatus Kuenenia in an SBBR-anammox system treating landfill leachate, with a relative abundance of 20.40% [30]. The study of Liu et al also reported that the relative abundance of Candidatus Kuenenia increased to 20.1% under low COD/N ratio conditions in the simultaneous nitrification, anammox, and denitrification (SNAD) system during the operation of the SBBR reactor [31]. The study of Chen et al confirmed that the SBBR system has great potential to enrich anammox functional bacteria, in which the relative abundance of Candidatus Brocadia was 0.1%, representing successful enrichment [32].…”

Section: Introductionmentioning

confidence: 99%

The Recovery of a Sequencing Biofilm Batch Reactor—Anammox System: Performance, Metabolic Characteristics, and Microbial Community Analysis

Chen

Liu

et al. 2023

Sustainability

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The mainstream application of the anammox process is often hindered by its long recovery phase and instability under disturbance. In this study, a lab-scale anammox sequencing biofilm batch reactor (SBBR) was rapidly recovered within 85 days by gradually increasing the influent nitrogen concentration, and the total inorganic nitrogen (TIN) removal efficiency achieved 83.44 ± 0.03%. During the recovery process, the nitrogen removal rate (NRR) increased from 0.05 to 0.34 kg/(m3·d), with the nitrogen loading rate (NLR) changing from 0.08 to 0.40 kg/(m3·d) in the anammox system. The activities of hydrazine oxidase (HZO) in the biofilm also increased from 0.17 to 10.80 μmol Cyt-c/(g VSS·s). Also, the dominant anammox genera in the biofilm were Candidatus Kuenenia and Candidatus Brocadia. The results of this study suggested that an SBBR–anammox system filled with a microbial carrier could facilitate the enrichment of anammox bacteria and contribute to performance recovery.

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Start-up of the Simultaneous Nitrification, Anammox, and Denitrification (SNAD) Reactor and Efficacy of a Small Amount of Organic Carbon

Cited by 9 publications

References 36 publications

The Participation of Microbiota in the Transformation of Nitrogen Compounds in the Soil—A Review

The Participation of Microbiota in the Transformation of Nitrogen Compounds in the Soil—A Review

Perspective for Emission and Control of Nitrous Gas in Biological Wastewater Treatment

The Recovery of a Sequencing Biofilm Batch Reactor—Anammox System: Performance, Metabolic Characteristics, and Microbial Community Analysis

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