Results 211 to 220 of about 16,409 (259)
Similarity of activated sludge and treated wastewater with special reference to nitrifiers and their seasonal variability. [PDF]
Sci RepDomańska M +4 more
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2011
Abstract Over the past 15 years, the use of modern molecular biological approaches has radically advanced our understanding of nitrification processes. With chapters contributed by leading experts in the field, Nitrification fully reviews all the latest research findings on microbes involved in conventional aerobic nitrification ...
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Abstract Over the past 15 years, the use of modern molecular biological approaches has radically advanced our understanding of nitrification processes. With chapters contributed by leading experts in the field, Nitrification fully reviews all the latest research findings on microbes involved in conventional aerobic nitrification ...
+7 more sources
Canadian Journal of Microbiology, 1990
Complete oxidation of ammonia nitrogen (~1000 mg/L) to nitrite was observed in stabilized swine waste after 49 days in incubation at 400 rpm and 29 °C, only if 10% (v/v) activated sludge from a wastewater treatment unit and 1.5% (w/v) CaCO3, were added.
M, Blouin +3 more
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Complete oxidation of ammonia nitrogen (~1000 mg/L) to nitrite was observed in stabilized swine waste after 49 days in incubation at 400 rpm and 29 °C, only if 10% (v/v) activated sludge from a wastewater treatment unit and 1.5% (w/v) CaCO3, were added.
M, Blouin +3 more
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Plant influence on nitrification
Biochemical Society Transactions, 2011Modern agriculture has promoted the development of high-nitrification systems that are susceptible to major losses of nitrogen through leaching of nitrate and gaseous emissions of nitrogen oxide (NO and N2O), contributing to global warming and depletion of the ozone layer.
Marcin W, Skiba +3 more
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Nature, 1950
IN the reported discussion of the “Nitrogen Cycle in Nature” at the Newcastle meeting of the British Association, reference was made to Prof. J. H. Quastel's observation that “all the amino-acids studied nitrify readily with the striking exception of methionine”. The report does not mention cystine in this connexion.
O, OWENS, G W, WINSOR
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IN the reported discussion of the “Nitrogen Cycle in Nature” at the Newcastle meeting of the British Association, reference was made to Prof. J. H. Quastel's observation that “all the amino-acids studied nitrify readily with the striking exception of methionine”. The report does not mention cystine in this connexion.
O, OWENS, G W, WINSOR
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Nitrification in Paleocene Shale
Science, 1974Exchangeable ammonium nitrogen is present in Paleocene (Fort Union) shale below a depth of 10 meters in North Dakota and eastern Montana. Above 10 meters, exchangeable ammonium nitrogen is nitrified in situ. The lack of viable nitrifying organisms and the probable lack of oxygen prevent in situ nitrification below 10 meters.
J F, Power +3 more
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Canadian Journal of Microbiology, 1975
We report that the algal pavement just behind the reef crest at Enewetak Atoll produces nitrate at measurable rates. In situ and in vitro incubations with N-Serve® indicate that the autotrophic pathway involving two separate organisms is effective in this oxidation of ammonia to nitrate.
K L, Webb, W J, Wiebe
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We report that the algal pavement just behind the reef crest at Enewetak Atoll produces nitrate at measurable rates. In situ and in vitro incubations with N-Serve® indicate that the autotrophic pathway involving two separate organisms is effective in this oxidation of ammonia to nitrate.
K L, Webb, W J, Wiebe
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Nitrification in a zeoponic substrate
Plant and Soil, 2003Clinoptilolite is a zeolite mineral with high cation exchange capacity used in zeoponic substrates that have been proposed as a solid medium for growing plants or as a fertilizer material. The kinetics of nitrification has not been measured for NH4+ saturated zeoponic substrate.
R L, McGilloway +3 more
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Archiv f�r Mikrobiologie, 1960
1. Nitrifying fungi were isolated from soil and were found to belong to the genera Aspergillus and Penicillium. 2. While the Aspergillus-isolates produced both nitrite and nitrate, the penicillia were observed to produce only nitrate from nitrite.
T S, HORA, M R, IYENGAR
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1. Nitrifying fungi were isolated from soil and were found to belong to the genera Aspergillus and Penicillium. 2. While the Aspergillus-isolates produced both nitrite and nitrate, the penicillia were observed to produce only nitrate from nitrite.
T S, HORA, M R, IYENGAR
openaire +2 more sources