Results 111 to 120 of about 202,861 (363)
Modelling N2O dynamics of activated sludge biomass under nitrifying and denitrifying conditions: pathway contributions and uncertainty analysis [PDF]
arXiv, 2018 Nitrous oxide (N2O) is a potent greenhouse gas emitted during biological wastewater treatment. A pseudo-mechanistic model describing three biological pathways for nitric oxide (NO) and N2O production was calibrated for mixed culture biomass from an activated sludge process using laboratory-scale experiments.
arxiv
International Journal of Environmental Health Engineering, 2014 Aims: The purpose of this study was to determine of nitrate and nitrite exposure and their health risk assessment in 21 brands of bottled waters in Isfahan′s market in 2013.
Malihe Moazeni +4 more
doaj +1 more source
Advanced Science, EarlyView.By integrating Cu/Cu2O and CoNi LDH, tandem kinetic descriptors, including a volcano curve, are employed to predict rate constants, facilitating ideal kinetic matching for efficient ammonia synthesis. The highest ammonia yield (1.12 mmol cm−2 h−1) and Faraday efficiency (99.78%) are achieved by rate matching between Cu/Cu2O and MoO4‐CoNi LDH.
Changzheng Lin +11 more
wiley +1 more source
Angewandte Chemie, EarlyView.p‐type TiO2 nanotubes with quantum confinement effect enable photocatalytic nitrate reduction to ammonia. The decoration with Pt single atoms significantly enhances the photocatalytic activity and selectivity toward ammonia while the quantum confinement effect and p‐type conductivity of the nanotubes maintain their key roles in the photocatalytic ...
Hayoon Jung +4 more
wiley +2 more sources
Open Chemistry, 2020 This research was conducted using beef extracted from Kupang (se’i meat), Indonesia. Se’i meat is a locally found food where the preferred mode of preparation is smoking the beef with the preservation using nitrites.
Adu Apris A. +2 more
doaj +1 more source
Advanced Electronic Materials, EarlyView.A novel strategy for rapid in situ synthesis of hydrogels using Mo₂C‐derived molybdenum polyoxometalates (Mo‐POM) and ammonium persulfate enables room‐temperature polymerization. The hydrogels exhibit high transparency, conductivity, mechanical robustness, and durability. Integration of LiCl ensures antifreeze and water retention, while Mo‐POM/alginate
W. Yuan, J. Zhao
wiley +1 more source
Isotope Techniques in Chemical Wastewater Treatment: Opportunities and Uncertainties
Angewandte Chemie, EarlyView.In this review, we would first introduce basic knowledge about isotopic compounds and then scrutinize the physical and chemical influence induced by isotope changes. Special attention will be paid to the uncertainties in explaining the isotope results.
Hongyu Zhou +7 more
wiley +2 more sources
Nitrate- and nitrite-dependent anaerobic oxidation of methane.
Environmental Microbiology Reports, 2016 Microbial methane oxidation is an important process to reduce the emission of the greenhouse gas methane. Anaerobic microorganisms couple the oxidation of methane to the reduction of sulfate, nitrate and nitrite, and possibly oxidized iron and manganese ...
C. Welte +8 more
semanticscholar +1 more source
Development of an optical redox chemical sensor for nitrite determination
Química Nova, 2012 An optical chemical sensor for the determination of nitrite based on incorporating methyltrioctylammonium chloride as an anionic exchanger on the triacetylcellulose polymer has been reported.
Saadat Rastegarzadeh +1 more
doaj +1 more source
Advanced Energy Materials, EarlyView.The impact of the ionomer to catalyst ratio for atomic Fe in N‐doped C (Fe‐N‐C) degradation in proton exchange membrane fuel cells is elucidated by advanced electrochemical techniques. Kinetic degradation dominants, with the reduction in turnover frequency of FeNx active sites initially suppressed with increasing ionomer loading.
Angus Pedersen +10 more
wiley +1 more source