Results 91 to 100 of about 28,805 (221)

Isolation, identification, and the denitrification characteristics for a denitrifying strain: Paracoccus huijuniae

上海师范大学学报. 自然科学版
Nitrogen(N) removal become an important topic in municipal wastewater treatment, in which denitrification seems more important step. A denitrifying strain, Paracoccus huijuniae, was isolated and was employed for accelerating denitrification by means of ...
HUANG Meng, CHEN Songyun, ZHANG Haiyun, GAO Xiaobing, ZHANG Yongming   +4 more
doaj   +1 more source

Ecosystem openness to nitrogen and phosphorus controlled by fertilisation, mowing and plant diversity in a grassland

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem openness to nitrogen (N) and phosphorus (P) is determined by the balance of N and P inputs (e.g. fertiliser) and outputs (biomass removal). Plant biodiversity enhances nutrient use efficiency due to species' complementary uptake driven by their variation in ...
Bahareh Bicharanloo, Milad Bagheri Shirvan, Timothy R. Cavagnaro, Claudia Keitel, Feike A. Dijkstra   +4 more
wiley   +1 more source

Manipulation of carbon media, temperature and hydraulic efficiency to increase nitrate removal rate in denitrification beds

, 2011
The accumulation of reactive nitrogen (Nr) in terrestrial and aquatic environments is a global environmental issue that causes or contributes to climate change, stratospheric ozone depletion, and deterioration of coastal and terrestrial waters.
Cameron, Stewart Graham
core  

Optimization of Reaction Kinetic Model for Polymer Catalytic Reduction Denitrification

Journal of Chemistry
Polymer catalytic reduction (PCR) is a denitrification method that may exhibit higher efficiency and lower cost. However, the presence of catalysts in the PCR agent adds complexity to the denitrification reaction kinetics.
Jingyang Zhang, Ya Zhang, Yuepeng Pang, Jian Gu   +3 more
doaj   +1 more source

A novel aerobic-anoxic biological filter for nitrogen removal from UASB effluent using biogas compounds as electron donors for denitrification

Revista Facultad de Ingeniería Universidad de Antioquia, 2012
The performance of a new trickling filter (TF) configuration composed of an upper compartment for nitrification and a lower compartment for denitrification of effluent from a UASB reactor treating domestic sewage was evaluated.
Jenny Rodríguez Victoria, Eugenio Foresti   +1 more
doaj   +1 more source

Alleviation of phosphorus rather than nitrogen limitation driven by permafrost and landscape effects on Dahurian larch forests

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Permafrost thaw is reshaping nutrient dynamics in boreal forests, but its impacts on tree nutrient limitation and functional strategies remain poorly understood. Clarifying these responses is crucial for predicting the response of boreal forests to climate change.
Qiyue Fu, Liang Shi, Zhaopeng Song, Boyi Liang, Honglin He, Kun Yang, Weihua Zhang, Lisha Lyu, Anatoly S. Prokushkin, Hongyan Liu   +9 more
wiley   +1 more source

Waterbird zoogeochemical effects shape wetland nutrient dynamics and algal communities in Laurentian Great Lakes coastal freshwater wetlands

Journal of Animal Ecology, EarlyView.
Distinct waterbird species influence nutrient cycling through guano contributions in Great Lakes coastal wetlands. Waterbird‐derived nutrients favour distinct algal communities and wetland sediments rapidly remove waterbird nutrients via biogeochemical processes.
Taylor C. Michael, Paisley Kostick, Matthew A. Wuensch, David M. Costello   +3 more
wiley   +1 more source

In situ mixing of organic matter decreases hydraulic conductivity of denitrification walls in sand aquifers

, 2008
In a previous study, a denitrification wall was constructed in a sand aquifer using sawdust as the carbon substrate. Ground water bypassed around this sawdust wall due to reduced hydraulic conductivity.
Schipper, Louis A., Barkle, Gregory F., Painter, Brett D.M., Burgess, Craig P.   +3 more
core   +1 more source

Denitrification in Sinorhizobium meliloti

Biochemical Society Transactions, 2011
Denitrification is the complete reduction of nitrate or nitrite to N2, via the intermediates nitric oxide (NO) and nitrous oxide (N2O), and is coupled to energy conservation and growth under O2-limiting conditions. In Bradyrhizobium japonicum, this process occurs through the action of the napEDABC, nirK, norCBQD and nosRZDFYLX gene products.
Torres María J, Rubia María I, Bedmar Eulogio J, Delgado María J   +3 more
openaire   +3 more sources

Spatial Patterns of Avian Stable Isotopes Reveal Ecological Impacts of Climate and Land‐Use Change

Integrative Zoology, EarlyView.
Increased feather δ15N values with pasture coverage reveal an elevated baseline δ15N in grazing landscapes, while broader isotopic niches in farmland habitats reflect agricultural expansion's significant influence on resource use patterns of the avian community.
Yaohong Jia, Chao Zhang, Xiaoyu Hu, Wei Wei, Yonggang Nie, Hong Zhou   +5 more
wiley   +1 more source