Results 11 to 20 of about 11,182 (261)
Startup and initial operation of an MLE-MABR treating municipal wastewater
A 630 m3/d pilot plant was installed at Subiaco WRRF to determine design and operational parameters of a hybrid Modified Ludzack-Ettinger – Membrane Aerated Biofilm Reactor (MLE-MABR) configuration. Two commercial ZeeLung MABR cassettes were installed in
Isabel Telles Silveira +2 more
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Temperature dependence of nitrification in a membrane-aerated biofilm reactor
The membrane-aerated biofilm reactor (MABR) is a novel method for the biological treatment of wastewaters and has been successfully applied for nitrification.
András Németh +4 more
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XCVIII.—Experiments on the rate of nitrification [PDF]
n ...
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Shrubland is a pivotal terrestrial ecosystem in China. Soil nitrogen transformations play a crucial role in maintaining the productivity of this ecosystem, yet the driving forces underlying it have not been sufficiently addressed, particularly under ...
Xiaoxia Hu +7 more
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A comparison of two nitrification inhibitors used to measure nitrification rates in estuarine sediments [PDF]
Abstract Nitrification rates were measured using intact sediment cores from South San Francisco Bay and two different nitrification inhibitors: acetylene and methyl fluoride. Sediment oxygen consumption and ammonium and nitrate fluxes were also measured in these cores. Four experiments were conducted in the spring, and one in the fall of 1993.
J.M. Caffrey, L.G. Miller
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Nitrification rates in the NW Mediterranean Sea [PDF]
During spring, ammonium oxidation and nitrite oxidation rates were measured in the NW basin of the Mediterranean Sea, from mesotrophic sites (Ligunan Sea and Gulf of Lions) to oligotrophc sites (Balearic Islands). Nitrification rates (average values for 37 measurements) ranged from 72 to 144 nmol of N oxidised 1-' d-', except in the RhBne River plume ...
Bianchi, M, Fosset, C, Conan, P
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High nitrification rate with upflow biofiltration
In order to investigate the upper limit of aerated biofilm processes, a series of experiments has been carried out on a pilot scale with a synthetic effluent containing only ammonium nitrogen and inorganic carbon as substrates. The influence of water velocity, air velocity and media height has been studied without the interaction of organic carbon and ...
R. Pujol, H. Lemmel, J.-G. Peladan
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The nitrates produced after mineralization from compost may be prone to leaching, especially in tropical sandy soils, because of the increased rate of nitrification and the porous nature of such soils.
Hammond Abeka +6 more
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Using molecular biology methods (qualitative and quantitative PCR), we determined the occurrence and abundance of ammonia‐oxidizing archaea (AOA) and ammonia‐oxidizing bacteria (AOB) from a dry inland soil in Basel, Switzerland, and from the riparian ...
Lei Zheng +5 more
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Soil aggregate size influences the impact of inorganic nitrogen deposition on soil nitrification in an alpine meadow of the Qinghai–Tibet Plateau [PDF]
Background Ammonium (NH4+) and nitrate (NO3−) are two inorganic forms of nitrogen (N) that are deposited from the atmosphere into soil systems. As the substrate and product of soil nitrification, these two forms of inorganic nitrogen will affect or be ...
Jingjing Li +4 more
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