Results 201 to 210 of about 23,282 (244)
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Inactivation kinetics of nitrite-oxidizing bacteria by free nitrous acid
Science of the Total Environment, 2021Recent studies have shown that free nitrous acid (FNA, i.e., HNO2) is biocidal to many microorganisms, promoting the development of FNA-based technology in biological wastewater treatment. Suppression of nitrite-oxidizing bacteria (NOB) is a critical step for autotrophic nitrogen removal via anammox. In this study, the biocidal effect of FNA on NOB was
Min Zheng, Zhiyao Wang, Jia Meng
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Isolation and Identification of Nitrite-oxidizing Bacteria [PDF]
, 2015 In order to select the strain that can degrade nitrite, we use the screening plate with nitrite as the sole nitrogen source to select the strain with ability to degrade nitrite, and get a strain with nitrite degrading capacity from the silt of shrimp farming pond in Hepu City, Guangxi Zhuang Autonomous Region.
CHEN, Yulong +5 more
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Deregulation of Ribosome Biogenesis in Nitrite-Oxidizing Bacteria Leads to Nitrite Accumulation
Environmental Science & Technology, 2023Nitrite (NO2-) accumulation caused by nitrite-oxidizing bacteria (NOB) inhibition in nitrification is a double-edged sword, i.e., a disaster in aquatic environments but a hope for innovating nitrogen removal technology in wastewater treatment. However, little information is available regarding the molecular mechanism of NOB inhibition at the cellular ...
Weiping Xiong, Yuhang Ye, Siying He
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Major role of nitrite-oxidizing bacteria in dark ocean carbon fixation
Science, 2017 Dissolved inorganic carbon fixers revealed Most of the ocean is dark. Yet it is in this darkness, away from photosynthesizing sunlight, that most planetary carbon cycling occurs. Pachiadaki et al.
Maria G. Pachiadaki +13 more
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The limited effects of carbonaceous material amendments on nitrite-oxidizing bacteria in an Alfisol
Science of the Total Environment, 2020Carbonaceous materials are soil conditioners that affect nitrogen cycles. However, how carbonaceous materials influence nitrite-oxidizing bacteria (NOB) is yet unclear. In this study, we investigated the NOB community and its potential activities under different treatments (control, biochar, straw, limestone, biochar + limestone, and straw + limestone)
Xuesong Luo, Achen Wang, Shun Han
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Bioresource Technology, 2017
The free ammonia (FA) inhibition on ammonia oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) under anaerobic condition was investigated in this study. The results indicated that NOB was more sensitive to the FA anaerobic treatment than AOB. The FA anaerobic inhibition on nitrifier gradually heightened with the increase of FA concentration.
Xiyao Li, Bin Ma
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The free ammonia (FA) inhibition on ammonia oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) under anaerobic condition was investigated in this study. The results indicated that NOB was more sensitive to the FA anaerobic treatment than AOB. The FA anaerobic inhibition on nitrifier gradually heightened with the increase of FA concentration.
Xiyao Li, Bin Ma
exaly +3 more sources
The ecophysiology of nitrite-oxidizing bacteria in the genus Nitrospira
, 2009 Ein Kernprozess des biogeochemischen Stickstoffzyklus in natürlichen Lebensräumen und technischen Anlagen (z. B. Kläranlagen) ist die Nitrifikation. Dieser aerobe Prozess untergliedert sich in zwei Stufen, der oxidativen Umwandlung von Ammoniak zu Nitrit bzw. von Nitrit zu Nitrat. Zwei verschiedene funktionelle Gruppen chemolithotropher Mikroorganismen
Maixner, Frank
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The lithoautotrophic nitrite-oxidizing bacteria
2005The lithotrophic nitrite oxidizers are Gram-negative eubacteria that are able to use nitrite as a sole source of energy and CO2 as the main source of carbon. Some strains are able to grow mixotrophically. These organisms are obligate lithoautotrophs with the exception of Nitrobacter, which can grow heterotrophically.
Eva Spieck, Eberhard Bock
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Effect of Penicillin on Nitrite-Oxidizing Bacteria in Activated Sludge
Applied Biochemistry and Biotechnology, 2012The effects of penicillin G on the number and activity of nitrite-oxidizing bacteria were investigated in laboratory-scale reactors and batch tests. At a concentration of 100 mg L(-1), addition of penicillin G for short periods did not significantly affect nitrite oxidation, while addition for more than 2 months suppressed nitrite oxidation ...
Shao-Hui, Zhang, Francis L, de los Reyes
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