The variation on nitrogen removal mechanisms and the succession of ammonia oxidizing archaea and ammonia oxidizing bacteria with temperature in biofilm reactors treating saline wastewater

Lin, Ziyuan; Huang, Wei; Zhou, Jiong; He, Xuejie; Wang, Jiale; Wang, Xiantao; Zhou, Jian

doi:10.1016/j.biortech.2020.123760

Cited by 45 publications

(12 citation statements)

References 38 publications

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“…Figure 1a depicted the growth and nitrogen removal properties of L. fusiformis B301 under different temperatures. The nitrogen removal of L. fusiformis B301 below 20°C was strongly inhibited, which was in line with the findings of Lin et al (2020). The TN RE of L. fusiformis B301 significantly increased from 9.47% to 73.72% when temperature increased to 30°C from 20°C.…”

Section: Resultssupporting

confidence: 92%

Simultaneous nitrogen removal via heterotrophic nitrification and aerobic denitrification by a novel Lysinibacillus fusiformis B301

Zhou

et al. 2023

Water Environment Research

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Simultaneous nitrogen removal via heterotrophic nitrification and aerobic denitrification (HN-AD) has received widespread attention in biological treatment of wastewater. This study reported a novel Lysinibacillus fusiformis B301 strain, which effectively removed nitrogenous pollutants via HN-AD in one aerobic reactor with no nitrite accumulated. It exhibited the optimal nitrogen removal efficiency under 30 C, citrate as the carbon source and C/N ratio of 15. The maximum nitrogen removal rates were up to 2.11 mgNH 4 + -N/(LÁh), 1.62 mgNO 3 À -N/(LÁh), and 1.41 mgNO 2 À -N/(LÁh), respectively, when ammonium, nitrate, and nitrite were employed as the only nitrogen source under aerobic conditions. Ammonium nitrogen was preferentially consumed via HN-AD in the coexistence of three nitrogen species, and the removal efficiencies of total nitrogen were up to 94.26%. Nitrogen balance analysis suggested that 83.25% of ammonium was converted to gaseous nitrogen.The HD-AD pathway catalyzed by L. fusiformissupported by the results of key denitrifying enzymatic activities. Practitioner Points:• The novel Lysinibacillus fusiformis B301 exhibited the outstanding HN-AD ability.• The novel Lysinibacillus fusiformis B301 simultaneously removed multiple nitrogen species.• No nitrite accumulated during the HN-AD process.• Five key denitrifying enzymes were involved in the HN-AD process.• Ammonium nitrogen (83.25%) was converted to gaseous nitrogen by the novel strain.

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Section: Resultssupporting

confidence: 92%

Simultaneous nitrogen removal via heterotrophic nitrification and aerobic denitrification by a novel Lysinibacillus fusiformis B301

Zhou

et al. 2023

Water Environment Research

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“…Due to their relatively high ammonia/oxygen affinity (Table 2) and tolerance to low temperature, high salinity, acidity and alkalinity, AOA are more promising in treating low strength ammonia wastewater under harsh conditions. For example, when treating saline wastewater, AOA can contribute to 94.9% and 48.2% of the overall ammonia oxidation at 10°C and 35°C, respectively (Lin et al, 2020). The much higher ammonia and oxygen affinities of AOA than AOB promoted their closer metabolic interactions with AnAOB under nutrient-and oxygen-limited conditions, where the r-strategists NOB-Nitrobacter can be suppressed too.…”

Section: Aoa: Ammonia Oxidation Under Adverse Conditionsmentioning

confidence: 99%

Overlooked nitrogen-cycling microorganisms in biological wastewater treatment

Lü

2021

Front. Environ. Sci. Eng.

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Nitrogen-cycling microorganisms play key roles at the intersection of microbiology and wastewater engineering. In addition to the well-studied ammonia oxidizing bacteria, nitrite oxidizing bacteria, heterotrophic denitrifiers, and anammox bacteria, there are some other N-cycling microorganisms that are less abundant but functionally important in wastewater nitrogen removal. These microbes include, but not limited to ammonia oxidizing archaea (AOA), complete ammonia oxidation (comammox) bacteria, dissimilatory nitrate reduction to ammonia (DNRA) bacteria, and nitrate/nitrite-dependent anaerobic methane oxidizing (NOx-DAMO) microorganisms. In the past decade, the development of high-throughput molecular technologies has enabled the detection, quantification, and characterization of these minor populations. The aim of this review is therefore to synthesize the current knowledge on the distribution, ecological niche, and kinetic properties of these “overlooked” N-cycling microbes at wastewater treatment plants. Their potential applications in novel wastewater nitrogen removal processes are also discussed. A comprehensive understanding of these overlooked N-cycling microbes from microbiology, ecology, and engineering perspectives will facilitate the design and operation of more efficient and sustainable biological nitrogen removal processes.

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“…Similar phenomena occurred in some biofilm reactors. It was evaluated that up to 94.9% of the overall ammonia oxidation could be attributed to AOA at 10°C, 48.2% of that was undertaken by AOA at 35°C ( Lin et al, 2020 ).…”

Section: Opportunity For Nitrogen Removal By Ammonia-oxidizing Archaea and Anaerobic Ammonia-oxidizing Bacteria In Aquaculture Pondsmentioning

confidence: 99%

A Review of Ammonia-Oxidizing Archaea and Anaerobic Ammonia-Oxidizing Bacteria in the Aquaculture Pond Environment in China

Liu

Cheng

et al. 2021

Front. Microbiol.

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The excessive ammonia produced in pond aquaculture processes cannot be ignored. In this review, we present the distribution and diversity of ammonia-oxidizing archaea (AOA) and anaerobic ammonia-oxidizing bacteria (AnAOB) in the pond environment. Combined with environmental conditions, we analyze the advantages of AOA and AnAOB in aquaculture water treatment and discuss the current situation of pond water treatment engineering involving these microbes. AOA and AnAOB play an important role in the nitrogen removal process of aquaculture pond water, especially in seasonal low temperatures and anoxic sediment layers. Finally, we prospect the application of bioreactors to purify pond aquaculture water using AOA and AnAOB, in autotrophic nitrogen removal, which can reduce the production of greenhouse gases (such as nitrous oxide) and is conducive to the development of environmentally sustainable pond aquaculture.

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The variation on nitrogen removal mechanisms and the succession of ammonia oxidizing archaea and ammonia oxidizing bacteria with temperature in biofilm reactors treating saline wastewater

Cited by 45 publications

References 38 publications

Simultaneous nitrogen removal via heterotrophic nitrification and aerobic denitrification by a novel Lysinibacillus fusiformis B301

Simultaneous nitrogen removal via heterotrophic nitrification and aerobic denitrification by a novel Lysinibacillus fusiformis B301

Overlooked nitrogen-cycling microorganisms in biological wastewater treatment

A Review of Ammonia-Oxidizing Archaea and Anaerobic Ammonia-Oxidizing Bacteria in the Aquaculture Pond Environment in China

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