Results 211 to 220 of about 19,455 (252)
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Ammonia biofiltration and community analysis of ammonia-oxidizing bacteria in biofilters
Bioresource Technology, 2009Biological removal of ammonia was investigated using compost and sludge as packing materials in laboratory-scale biofilters. The aim of this study is to characterize the composition of ammonia-oxidizing bacteria (AOB) in two biofilters designed to remove ammonia.
Yin, Jun, Xu, Wenfeng
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Diversity of ammonia monooxygenase operon in autotrophic ammonia-oxidizing bacteria
Archives of Microbiology, 2001Autotrophic ammonia-oxidizing bacteria use the essential enzyme ammonia monooxygenase (AMO) to transform ammonia to hydroxylamine. The amo operon consists of at least three genes, amoC, amoA, and amoB; amoA encodes the subunit containing the putative enzyme active site.
Norton, Jeanette M. +3 more
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c-Cytochromes of the ammonia-oxidizing chemolithoautotrophic bacteria
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1991The major enzymes associated with the oxidation of ammonia by chemolithoauthotrophic bacteria are studied, including some cytochromes c , are described and details of their properties are given.
A B, Hooper +3 more
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Ecological characteristics of anaerobic ammonia oxidizing bacteria
Applied Microbiology and Biotechnology, 2013Anaerobic ammonium oxidation (anammox) is the microbial conversion of ammonium and nitrite to dinitrogen gas. The functional microbes of anammox reaction are anammox bacteria, which were discovered in a wastewater treatment system for nitrogen removal.
Shuang, Ding +5 more
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Ammonia Oxidizing Bacteria in Wastewater Treatment
2023Wastewater pollutants such as trace organic chemicals and pharmaceutical compounds pose a major threat to aquatic environments and human health. There is a critical need to develop potential strategies that aim at enhancing the metabolism and/or cometabolism of these compounds.
Pranjal P. Das +2 more
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Applied Microbiology and Biotechnology, 2013
In a pot-cultural experiment, the impact of the antibiotic roxithromycin (ROX) addition was assessed on the diversities of microbial structure and function communities, especially involved in ammonia and nitrite oxidation in wheat rhizosphere soil with and without the addition of earthworms.
Binbin, Yu +4 more
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In a pot-cultural experiment, the impact of the antibiotic roxithromycin (ROX) addition was assessed on the diversities of microbial structure and function communities, especially involved in ammonia and nitrite oxidation in wheat rhizosphere soil with and without the addition of earthworms.
Binbin, Yu +4 more
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Ammonia-Oxidizing Bacteria: A Model for Molecular Microbial Ecology
Annual Review of Microbiology, 2001▪ Abstract  The eutrophication of many ecosystems in recent decades has led to an increased interest in the ecology of nitrogen transformation. Chemolitho-autotrophic ammonia-oxidizing bacteria are responsible for the rate-limiting step of nitrification in a wide variety of environments, making them important in the global cycling of nitrogen.
Kowalchuk, G.A., Stephen, J.R.
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Nitrous Oxide Production and Methane Oxidation by Different Ammonia-Oxidizing Bacteria
Applied and Environmental Microbiology, 1999ABSTRACT Ammonia-oxidizing bacteria (AOB) are thought to contribute significantly to N 2 O production and methane oxidation in soils. Most of our knowledge derives from experiments with Nitrosomonas europaea , which appears to be of minor importance in most soils compared to
Q Q, Jiang, L R, Bakken
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Huan jing ke xue= Huanjing kexue, 2020
The effective inhibition of nitrite oxidizing bacteria (NOB) is the key to realizing satisfactory nitrite accumulation and achieving effective nitritation. In order to explore the selective effect of hydroxylamine (NH2 OH) on ammonia oxidizing bacteria (AOB) and NOB, a sequencing batch reactor (SBR) with the operation mode of anaerobic/aerobic/anoxia ...
Xin, Qiao +3 more
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The effective inhibition of nitrite oxidizing bacteria (NOB) is the key to realizing satisfactory nitrite accumulation and achieving effective nitritation. In order to explore the selective effect of hydroxylamine (NH2 OH) on ammonia oxidizing bacteria (AOB) and NOB, a sequencing batch reactor (SBR) with the operation mode of anaerobic/aerobic/anoxia ...
Xin, Qiao +3 more
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Bioresource Technology
Ammonia-oxidizing activity of different ammonia-oxidizing microorganisms (AOMs), such as ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and complete ammonia oxidizers (comammoxs), were investigated by adding the inhibitors such as 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide, octyne, and KCLO3 in biofilm systems with ...
Haojie Qiu +7 more
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Ammonia-oxidizing activity of different ammonia-oxidizing microorganisms (AOMs), such as ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and complete ammonia oxidizers (comammoxs), were investigated by adding the inhibitors such as 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide, octyne, and KCLO3 in biofilm systems with ...
Haojie Qiu +7 more
openaire +2 more sources