Results 101 to 110 of about 16,177 (209)

The Effect of Stocking Density on Nitrification Rate in a Closed Recirculating Culture System

, 2007
Nitrification rate in a closed recirculating water system with different stocking density of common carp (Cyprinus carpio L.) had been observed in the Laboratory of Aquaculture, Faculty of Fisheries and Marine Science, Mulawarman University.
Sidik, A.S., A.S. Sidik, Agustina, ,, , Sarwono, , Agustina, Sarwono, ,   +5 more
core   +1 more source

Stabilization of nitrite in the presence of the nitrification inhibitor allylthiourea (ATU) in freshwater nitrification rate measurements

Limnology and Oceanography: Methods
AbstractNitrification rate measurements provide critical information on the performance of an environmental process central to the N cycle and are best studied using isotope labeling techniques. However, combining the high sensitivity of isotope labeling techniques with selected inhibition of nitrifiers as a whole or of specific nitrifier guilds has ...
Jade Bosviel, Katharina Kitzinger, Michael Pester   +2 more
openaire   +2 more sources

Straw and biochar amendments enhance cotton nitrogen uptake and yield by regulating ammonia-oxidizing microbial communities in saline water-irrigated fields

Industrial Crops and Products
Soil salinization severely restricts cotton nitrogen uptake and yield in arid saline drip irrigation fields by inhibiting nitrification and disrupting ammonia-oxidizing microbial communities. This study set four treatments (fresh water, FW; saline water,
Xiaowen Guo, Ping Song, Ziqi Guo, Huijuan Guo, Wei Min   +4 more
doaj   +1 more source

Nitrification process [UK Patent Application no. WO0024682

, 1998
The present invention concerns the field of nitrification of fluids, and particularly relates to the treatment of aqueous fluids to oxidize ammonia and nitrites to produce nitrates.
Dempsey, Michael J.
core  

A study of nitrification kinetics

, 1973
One autotrophic and two heterotrophic chemostats were operated during the study period. The autotrophic unit was operated using an inorganic synthetic ammonium medium to provide a culture of nitrifying organism and to study cell yield.
Khararjian, Hraj Armen
core  

Desenvolvimento de grânulos aeróbios e tratamento de esgoto doméstico em um reator em bateladas sequenciais (RBS) sob diferentes condições operacionais [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Ambiental, Florianópolis, 2011Entre as recentes tecnologias desenvolvidas para o tratamento biológico de efluentes destacam-se os
Wagner, Jamile
core  

Modelling effects of acid deposition and climate change on soil and run-off chemistry at Risdalsheia, Norway

, 2001
Elevated carbon dioxide levels, caused by anthropogenic emissions of carbon dioxide to the atmosphere, and higher temperature may lead to increased plant growth and uptake to nitrogen, but increased temperature may lead to increased nitrogen ...
Mol-Dijkstra, J.P., Kros, H., Mol-Dijkstra, J. P.   +2 more
core  

Altitudinal patterns of alpine soil ammonia-oxidizing community structure and potential nitrification rate. [PDF]

Appl Environ Microbiol
Zhao Y, Ling N, Liu X, Li C, Jing X, Hu J, Rui J.   +6 more
europepmc   +1 more source

High-rate nitrification at low pH in suspended- and attached-biomass reactors

, 2004
This article reports on high-rate nitrification at low pH in biofilm and suspended-biomass reactors by known chemolithotrophic bacteria. In the biofilm reactor, at low pH (4.3 0.1) and low bulk ammonium concentra-tions (9.3 3.3 mg liter1), a very high
Michal Green, Sheldon Tarre
core  

Enhanced nitrogen removal via simultaneous nitrification and denitrification by a newly isolated strain Enterobacter cloacae GW6 from estuarine sediment. [PDF]

PLoS One
Chen S, Zhang Z, Wang Y, Wang C, Zhang X, Wang X, Wu Y, Wang Y, Guo H.   +8 more
europepmc   +1 more source