Results 111 to 120 of about 1,651 (222)

Simulation of simultaneous reactions of nitrification and denitrification.

Journal of Environmental Conservation Engineering, 1990
MASUDA, Sumio, WATANABE, Yoshimasa, ISHIGURO, Masayoshi   +2 more
openaire   +2 more sources

Trait‐based responses of nitrogen‐fixing cyanobacteria to nitrogen limitation and light availability: Insights from 45 years of monitoring

Limnology and Oceanography, Volume 71, Issue 8, August 2026.
Abstract The degree to which N2‐fixation compensates for reduced external nitrogen loading has significant implications for eutrophication recovery. We analyzed 45 years of monitoring data from the shallow, polymictic Lake Müggelsee during which external P‐ and N‐loading declined by about 80% and there were extended periods of N‐limitation in summer ...
Jordan A. Facey, Jan Köhler
wiley   +1 more source

Shifts in subsurface oxygen transport and consumption patterns in a restored coastal flood plain over five years

Limnology and Oceanography, Volume 71, Issue 8, August 2026.
Abstract Groundwater dissolved oxygen (DO) variability in coastal systems remains poorly understood despite its importance for biogeochemical cycling and ecosystem modeling. This study investigates temporal variability in groundwater DO and its hydro‐climatic drivers across timescales (hourly to seasonal) in a coastal floodplain at Beaver Creek ...
Emilio Grande, Ruby N. Ghosh, Charles McIntire, Michael J. Freeman, Peter Regier, Nicholas D. Ward   +5 more
wiley   +1 more source

Seasonal Restructuring of Microbial Communities and Resistomes in the Shitalakshya River, Bangladesh Revealed by Shotgun Metagenomics

MicrobiologyOpen, Volume 15, Issue 4, August 2026.
Dry‐season pollutant concentration drives microbial restructuring in Bangladesh's Shitalakshya River, shifting communities from Myroides to stress‐tolerant genera while enriching metal resistance genes and efflux pumps, revealing non‐antibiotic co‐selection as a key driver of antimicrobial resistance in urban waters.
Muhammad Ehteshamul Haque, Md. Shaminur Rahman, Munawar Sultana, Anowara Begum   +3 more
wiley   +1 more source

Zero Excess Sludge Production in a Thermophilic MBR System: Performance and Energy Consumption Evaluation

Water Environment Research, Volume 98, Issue 8, August 2026.
A full‐scale thermophilic pure‐oxygen process coupled with ceramic ultrafiltration achieves over 85% volatile solids removal and extremely low biomass yields, enabling substantial sludge reduction. Despite higher energy demand, the recovery of soluble COD and robust long‐term performance make this approach a sustainable and regulation‐resilient sludge ...
Maria Cristina Collivignarelli, Stefano Bellazzi, Laura Maria Rita Calabria, Marco Baldi, Marco Sordi, Barbara Marianna Crotti, Alessandro Abbà   +6 more
wiley   +1 more source

On‐Site Evaluation of Electropositive Filtration for Fouling Control: Case Study in a Water Reuse Desalination System

Water Environment Research, Volume 98, Issue 8, August 2026.
A side‐by‐side comparison was made of electropositive filtration with string‐wound filtration as prefilters to reverse osmosis in a water reuse system. The pilot system ran for 8 weeks using a side stream of a full‐scale water reuse facility in Arizona.
Marion Bellier, Shahnawaz Sinha, Raymond Knispel, Gary Battenberg, François Perreault   +4 more
wiley   +1 more source

Landscape and Storm Characteristics Influence DOC and Nitrate Mobility and Riverine Export Magnitude in Two Arctic Catchments

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 8, August 2026.
Abstract Intensifying Arctic hydrological cycles and permafrost thaw alter the magnitude and timing of lateral solute fluxes to rivers, yet interactions among hydrological, biogeochemical, and landscape controls on carbon and nutrient export remain unclear.
Abigail F. Rec, Arial J. Shogren, Jay P. Zarnetske, Jonathan A. O’Donnell, Amelia L. Grose, Benjamin W. Abbott, William B. Bowden   +6 more
wiley   +1 more source

Agricultural Emissions of Reactive Nitrogen Gases From Constrained Simulations Using the Community Land Model

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract Reactive nitrogen (Nr) gases (NH3, N2O, and NO) emitted from agricultural fields constitute a substantial portion of the Nr flux from land to the atmosphere. Here, we coupled the Flows of Agricultural Nitrogen (FANv3) with a modified version of the Community Land Model (CLM5.1) to produce a model (CLM‐FANv3) that simulates the emissions of NH3,
Jinmu Luo, Peter G. Hess, Steven J. Hall, Holly Loper, Danica L. Lombardozzi, Julius Vira   +5 more
wiley   +1 more source

Carbon‐Nutrient Interactions Under Insect Disturbance Simulated by the Land‐Surface Model QUINCY 21edff48

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract Insect outbreaks significantly impact tree mortality and carbon‐nutrient cycling in forest ecosystems, yet most terrestrial biosphere models do not represent insect disturbances due to the complexity of nutrient processes and limited data. To address this gap, we implemented a new insect impacts module in the QUINCY (Quantifying Interactions ...
Yimian Ma, Sönke Zaehle, Albert Jornet Puig, Ana Bastos   +3 more
wiley   +1 more source

Ecological Restoration of a Cultivated Wetland to Enhance Nitrogen Retention in a Rapidly Developing Watershed

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract For much of the coastal United States, water quality continues to worsen due to excess nitrogen (N) from agricultural production and urban development. Restoration of freshwater wetlands, especially those connected to streams (i.e., fluvial wetlands), is a promising management option for curtailing watershed inputs of N to coastal embayments ...
Casey D. Kennedy, Adrian Wiegman, Molly Welsh, Anthony Buda, David Millar   +4 more
wiley   +1 more source