Results 1 to 10 of about 23,282 (244)
A New Perspective on Microbes Formerly Known as Nitrite-Oxidizing Bacteria [PDF]
Trends in Microbiology, 2016 Nitrite-oxidizing bacteria (NOB) catalyze the second step of nitrification, nitrite oxidation to nitrate, which is an important process of the biogeochemical nitrogen cycle. NOB were traditionally perceived as physiologically restricted organisms and were less intensively studied than other nitrogen-cycling microorganisms.
Holger Daims +2 more
exaly +5 more sources
Inactivation and adaptation of ammonia-oxidizing bacteria and nitrite-oxidizing bacteria when exposed to free nitrous acid [PDF]
Bioresource Technology, 2017 Inactivation and adaptation of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) to free nitrous acid (FNA) was investigated. Batch test results showed that AOB and NOB were inactivated when treated with FNA. After an 85-day operating period, AOB in a continuous pre-denitrification reactor did not adapt to the FNA that was applied ...
Bin Ma, Qilin Wang, Zhiguo Yuan
exaly +7 more sources
Numbers of nitrite-oxidizing bacteria in the root zone of grassland plants [PDF]
FEMS Microbiology Ecology, 1993 The results of Most Probable Number determinations applying low and high concentrations of nitrite reveal the presence of at least two different communities of potential nitrite-oxidizing bacteria in a number of soil types. The effect of plant roots on these two communities was studied in pot experiments with soil from natural grassland in the presence
Stienstra, A.W. +3 more
core +4 more sources
Scientific African, 2021 Bioaugmentation is a bioremediation approach involving the seeding of the competent microbial consortia to improve nitrogen removal from wastewater. The discharge of nitrogen-saturated wastewater into freshwater results in cultural eutrophication and ...
Benjamin Manirakiza +1 more
doaj +1 more source
Frontiers in Microbiology, 2022 Apparent contribution of complete ammonia-oxidizing organisms (comammox) to the global nitrogen cycle highlights the necessity for understanding niche differentiation of comammox bacteria among other ammonia oxidizers. While the high affinity for ammonia
Ekaterina Y. Gottshall +5 more
doaj +1 more source
Fabrication of Bacteria Environment Cubes with Dry Lift-Off Fabrication Process for Enhanced Nitrification. [PDF]
PLoS ONE, 2016 We have developed a 3D dry lift-off process to localize multiple types of nitrifying bacteria in polyethylene glycol diacrylate (PEGDA) cubes for enhanced nitrification, a two-step biological process that converts ammonium to nitrite and then to nitrate.
S A P L Samarasinghe +5 more
doaj +1 more source
Growth of nitrite-oxidizing bacteria by aerobic hydrogen oxidation [PDF]
Science, 2014 Oxidizing hydrogen in place of nitrite Microorganisms are important drivers of Earth's nitrogen cycle. Many of the organisms responsible for mediating the reactions of one phase of nitrogen to another are thought to be ecologic specialists. Using a combination of genomic and experimental analyses, Koch et al.
Koch, H. +12 more
openaire +3 more sources
STABILITY OF PARTIAL NITRITATION OF POULTRY SLAUGHTERHOUSE WASTEWATER IN A SEQUENTIAL BATCH REACTOR [PDF]
Engenharia Agrícola, 2017 The aim of this study was to monitor the stabilization of a sequential batch reactor (SBR) regarding the partial nitritation of poultry slaughterhouse wastewater, aiming at preparing it for a reactor with bacteria that promote anaerobic ammonia oxidation
Tatiane M. de Assis +4 more
doaj +1 more source
Frontiers in Microbiology, 2020 Nitrite-oxidizing bacteria (NOB) catalyze the second step of nitrification, which is an important process of the biogeochemical nitrogen cycle and is exploited extensively as a biological nitrogen removal process.
Hirotsugu Fujitani +9 more
doaj +1 more source
mSphere, 2016 We report metagenomic evidence for the presence of a Nitrospira-like organism with the metabolic potential to perform the complete oxidation of ammonia to nitrate (i.e., it is a complete ammonia oxidizer [comammox]) in a drinking water system.
Ameet J. Pinto +5 more
doaj +1 more source