Results 21 to 30 of about 11,182 (261)

Effect of Influent COD/N Ratio on Nitrification Rate in a Bench-scale Biological Reactor [PDF]

open access: yesآب و فاضلاب, 2005
Nitrification, the oxidation of ammonia to nitrate catalyzed by bacteria, is a key part of the global nitrogen cycle. In the first step of nitrification, chemolithoautotrophic ammonia oxidizers transform ammonia to nitrite, which subsequently oxidizes to
Bijan Bina   +2 more
doaj  

Effects of elevated atmospheric carbon dioxide concentration on nitrification of farmland soil

open access: yes浙江大学学报. 农业与生命科学版, 2022
It has been widely reported that elevated carbon dioxide concentration (eCO2) affects soil nitrogen cycling dramatically, in which nitrification plays an important role in net primary productivity and greenhouse gas emission.
DU Yilin   +6 more
doaj   +1 more source

Influence of shear on nitrification rates in a membrane bioreactor

open access: yesWater Science and Technology, 2014
Grundfos BioBooster (GBB) installed and operated a membrane bioreactor (MBR) test plant in 2012. During the period it became evident that the nitrification rate was lower than expected and a study was carried out to investigate the possible reasons for the observed low-nitrification rate.
Lou, M. A.   +3 more
openaire   +2 more sources

Simultaneous heterotrophic nitrification and aerobic denitrification potential of Paenibacillus sp. strain GLM-08 isolated from lignite mine waste and its role ammonia removal from mine waste water

open access: yesWater Science and Technology, 2022
Paenibacillus sp. strain GLM-08 was isolated from a lignite mine waste site in the Barmer basin, Rajasthan, India. The strain is efficient in heterotrophic nitrification and aerobic denitrification. This bacterium could remove approximately more than 95%
Silisti Karuriya, Sangeeta Choudhary
doaj   +1 more source

Short-term effects of nitrapyrin, rice straw and its biochar application on N transformation in soils of humid subtropical China

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science, 2018
The features of N transformations in humid subtropical soils vary greatly due to the wide variations of soil properties, particularly soil pH. Purpose: To understand whether the effects of countermeasures regulating N transformation varied with the ...
Ying Zhao   +4 more
doaj   +1 more source

Brachiaria humidicola Cultivation Enhances Soil Nitrous Oxide Emissions from Tropical Grassland by Promoting the Denitrification Potential: A 15N Tracing Study

open access: yesAgriculture, 2022
Biological nitrification inhibition (BNI) in the tropical grass Brachiaria humidicola could reduce net nitrification rates and nitrous oxide (N2O) emissions in soil. To determine the effect on gross nitrogen (N) transformation processes and N2O emissions,
Lu Xie   +8 more
doaj   +1 more source

Comparison of Nitrification Rates in Blueberry and Forest Soils [PDF]

open access: yesJournal of the American Society for Horticultural Science, 2002
Highbush blueberries (Vaccinium corymbosum L.) are long lived perennial plants that are grown on acidic soils. The goal of this study was to determine how blueberry cultivation might influence the nitrification capacity of acidic soils by comparing the nitrification potential of blueberry soils to adjacent noncultivated forest soils.
Eric J. Hanson   +4 more
openaire   +3 more sources

Soil Nitrification Rate Is Affected by Plant Species and Nitrogen Levels

open access: yesAgriculture
The soil nitrification rate is significantly affected by plant species, and it is also modulated by different nitrogen levels in the soil. There are a wide range of plant species with the capacity to produce biological nitrification inhibitors (hereafter
Luca Vitale   +9 more
doaj   +1 more source

Comparison of Partial and Complete Nitrification in SBR System for Use in Side Stream Processes [PDF]

open access: yesآب و فاضلاب, 2012
Use of low-cost biological methods for ammonia removal as partial nitrification has been attracted by many environmental engineering researchers in recent years.In this study the removal of ammonia in high concentration sewage based on both complete and ...
Ali Dehnoei   +3 more
doaj  

Contrasting Responses of N2O Mitigation to Different Nitrification Inhibitors in Tea Plantation Soils

open access: yesHorticulturae
Tea plantations are a hot-spot source of nitrous oxide (N2O) emissions in the agricultural system. Using nitrification inhibitors (NIs) is a promising way to mitigate agricultural N2O emissions and has been widely tested in many croplands.
Wei Hua   +6 more
doaj   +1 more source

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