Results 31 to 40 of about 3,988 (181)
npj Biofilms and Microbiomes, 2022 The resistance and resilience provided by functional redundancy, a common feature of microbial communities, is not always advantageous. An example is nitrite oxidation in partial nitritation-anammox (PNA) reactors designed for nitrogen removal in ...
Carolina Suarez +6 more
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Membranes, 2022 The offshore oil extraction process generates copious amounts of high-salinity oil-bearing wastewater; at present, treating such wastewater in an efficient and low-consumption manner is a major challenge. In this study, a flat ceramic membrane bioreactor
Ronglin Sun, Yue Jin
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Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria
Journal of Applied Sciences and Environmental Management, 2018 This research studied the effects of pesticide application on the growth of soil nitrifying bacteria. Nitrosomonas sp. was isolated from the Soil samples gotten from five different locations within the University of Benin, Benin City and cultured using ...
U Udochukwu +2 more
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The Isolation of Nitrosomonas europaea in Pure Culture [PDF]
Journal of General Microbiology, 1950 SUMMARY: Nitrosomonas europaea (Winogradsky) was isolated in pure culture from Rothamsted soil. The method used entailed: (1) building up the population of nitrifiers in enrichment cultures; (2) removal of the cells from the chalk in an enriched culture with a stream of carbon dioxide; (3) picking colonies from poured silica gel plates.
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Photoinactivation of Ammonia Oxidation in Nitrosomonas [PDF]
Journal of Bacteriology, 1974 Photoinactivation of ammonia oxidation in cells of Nitrosomonas was shown to follow first-order kinetics with a rate constant proportional to incident light intensity. The action spectrum for photoinactivation consisted of a broad peak in the ultraviolet range, where both hydroxylamine and ammonia oxidation were ...
A B, Hooper, K R, Terry
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Nitrogen removal by autotrophic ammonium oxidizing bacteria enrichment under anaerobic conditions [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2008 Sludge from an anoxic tank at the centralized wastewater treatment plant, Nong Khaem, Bangkok, Thailand, was inoculatedin an anaerobic sequencing batch reactor (ASBR). The optimal compositions and operating conditions of the stock of autotrophic ammonium
Pongsak (Lek) Noophan +3 more
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Microbiome, 2019 Background Residual disinfection is often used to suppress biological growth in drinking water distribution systems (DWDSs), but not without undesirable side effects.
Michael B. Waak +3 more
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Growth ofNitrosomonas europaeaon hydroxylamine [PDF]
FEMS Microbiology Letters, 1995 Hydroxylamine is an intermediate in the oxidation of ammonia to nitrite, but until now it has not been possible to grow Nitrosomonas europaea on hydroxylamine. This study demonstrates that cells of N. europaea are capable of growing mixotrophically on ammonia and hydroxylamine. The molar growth yield on hydroxylamine (4.74 g mol−1 at a growth rate of 0.
De Bruijn, P. (author) +4 more
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Frontiers in Microbiology, 2012 The distribution of species of aerobic chemolitho-autotrophic microorganisms such as the ammonia-oxidizing bacteria will be governed by pH, salinity and temperature as well as by the availability of oxygen, ammonia, carbon dioxide and other inorganic ...
Hendrikus J. eLaanbroek +4 more
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Environmental Microbiome, 2022 Obtaining efficient autotrophic ammonia removal (aka partial nitritation-anammox, or PNA) requires a balanced microbiome with abundant aerobic and anaerobic ammonia oxidizing bacteria and scarce nitrite oxidizing bacteria.
Alejandro Palomo +8 more
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