Results 1 to 10 of about 136,576 (266)

Nitrate storage and dissimilatory nitrate reduction by eukaryotic microbes [PDF]

open access: yesFrontiers in Microbiology, 2015
The microbial nitrogen cycle is one of the most complex and environmentally important element cycles on Earth and has long been thought to be mediated exclusively by prokaryotic microbes.
Anja eKamp   +3 more
doaj   +5 more sources

Are maps of nitrate reduction in groundwater altered by climate and land use changes? [PDF]

open access: yesHydrology and Earth System Sciences, 2022
Nitrate reduction maps have been used routinely in northern Europe for calculating the efficiency of remediation measures and the impact of climate change on nitrate leaching.
I. K. Seidenfaden   +5 more
doaj   +1 more source

Progress in selective electrochemical reduction of nitrate into ammonia

open access: yes能源环境保护, 2023
Selective electrochemical reduction of nitrate (NO3-) into ammonia (NH_3) is critical for environmental remediation and resource recovery. This review comprehensively summarizes the recent advances in electrochemical conversion of NO3- into NH_3 ...
LI Zhizhuo   +6 more
doaj   +1 more source

Study of nitrate contaminants removal from groundwater on copper modified BDD electrode [PDF]

open access: yesE3S Web of Conferences, 2020
The electrochemical nitrate reduction by using boron-doped diamond (BDD) and copper modified boron-doped diamond (Cu-BDD) electrodes was investigated at various potentials. Nitrate reduction efficiency and the products distribution was strongly dependent
Kuang Peijing   +3 more
doaj   +1 more source

SOIL REDOX AND pH EFFECTS ON NITRATE REDUCTION UNDER FLOODED CONDITIONS [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2000
In an incubation experiment, both biological and chemical reduction of nitrate were studied under flooded conditions at different redox (0, 200 and 400 mV) and pH (5, 7 and 9) values in the presence and absence of HgCl2 as a sterilant ...
A. El-Sebaay,
doaj   +1 more source

Nitrate reduction functional genes and nitrate reduction potentials persist in deeper estuarine sediments. Why? [PDF]

open access: yesPLoS ONE, 2014
Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) are processes occurring simultaneously under oxygen-limited or anaerobic conditions, where both compete for nitrate and organic carbon.
Sokratis Papaspyrou   +5 more
doaj   +1 more source

Nitrate removal during Fe(III) bio-reduction in microbial-mediated iron redox cycling systems

open access: yesWater Science and Technology, 2021
Fe(III) bio-reduction provides a prospect of applying the iron redox cycle to nitrate remediation in the aquatic environment. The objective of this study was to realize multiple nitrate removals in the system containing Shewanella oneidensis MR-1 (S ...
Yongsheng Lu   +7 more
doaj   +1 more source

Functioning of nitric oxide cycle in gastric mucosa of rats under excessive combined intake of sodium nitrate and fluoride [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2016
In the article the function of nitric oxide (·NO) cycle in rat’s gastric mucosa was assessed under excessive combined chronic fluoride and nitrate intake during 30 days.
O. Ye. Akimov, V. O. Kostenko
doaj   +1 more source

NITRATE REDUCTION AND ASSIMILATION IN CHLORELLA [PDF]

open access: yesJournal of General Physiology, 1948
1. Nitrate reduction and assimilation have been studied in Chlorella pyrenoidosa under growth conditions by observing effects on the CO2/O2 gas exchange quotient. 2. During assimilation of glucose in the dark, nitrate reduction is noted as an increase in the R.Q. to about 1.6 caused by an increased rate of carbon dioxide production.
M, CRAMER, J, MYERS
openaire   +2 more sources

Nitrate reduction by electrochemical processes using copper electrode: evaluating operational parameters aiming low nitrite formation

open access: yesWater Science and Technology, 2021
This work aims to present different electroreduction and electrocatalytic processes configurations to treat nitrate contaminated water. The parameters tested were: current density, cell potential, electrode potential, pH values, cell type and catalyst ...
T. F. Beltrame   +4 more
doaj   +1 more source

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