Exploració per tema "Nitrate"
Ara es mostren els items 1-11 de 11
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Calibrating and validating a coupled physical and biokinetic model of denitrification in the hyporheic zone of streams
(Universitat Politècnica de Catalunya, 2017-06-13)
Treball Final de Grau
Accés obertHuman activities have increased the input of bioavailable nitrogen into the rivers and streams across the world. This has caused harmful effects on ecosystem and human health, so that U.S. National Academy of Engineering ... -
Calidad mineral de las fuentes del sureste de la Reserva de la Biosfera del Montseny
(2022-08-30)
Article
Accés obertIt is necessary to develop the perception among our modern society, and among the ruling political class, that natural water sources are a cultural asset that must be protected, in a general way throughout the country, and ... -
Coupling respirometry and titrimetry for the characterization of the biological activity of a SO-NR consortium
(2014-09-01)
Article
Accés restringit per política de l'editorialDetermining growth rates and kinetic mechanisms of microbial consortia often needs of combining several tests and techniques. The present work demonstrates that combining titrimetric and respirometric data obtained in a ... -
“Fonts del Montseny” project
(Diputació de Barcelona, 2023-01-31)
Capítol de llibre
Accés obertSince 2016, the “Fonts del Montseny” project has been conducting theoretical research and providing empirical evidence of one of the massif’s greatest treasures: its springs. El Montseny’s fontinal systems are a historical, ... -
Les fonts del Montseny sud-occidental: estudi teòric i evidència empírica
(2023-05-10)
Article
Accés obertThe sources are a cultural asset that must be protected, for which their theoretical and empirical scientific study is necessary. This article pre¬sents a research that in the last six years has cataloged 893 springs and ... -
Polysulfone as an alternative material to PVC in the design of ion-selective electrodes
(2006-06-26)
Article
Accés restringit per política de l'editorialPolysulfone (PS), a non-conductive polymer, is employed as an alternative material to polyvinyl chloride (PVC), the most used polymer in the design of ion-selective electrode (ISE) membranes to date. A nitrate-ISE is ... -
Sulfonated poly(ether ether ketone), an ion conducting polymer, as alternative polymeric membrane for the construction of anion-selective electrodes
(2007-07-16)
Article
Accés restringit per política de l'editorialA novel arrangement for polymeric membranes used in anion-selective electrodes is presented. Sulfonated poly(ether ether ketone) (SPEEK), an ion conducting polymer has been used as a polymeric matrix to build an anion-selective ... -
Unequal physical-chemical behaviour of water sources in the north, west and east of Montseny (Barcelona-Girona)
(2019-06-27)
Article
Accés obertA sampling of the water of the 75 main sources of the east of the Montseny massif, in the region of La Selva (Girona, Spain), is carried out to perform the analysis of physicochemical parameters and elements such as flow, ... -
Using WIZ portable module to analyse Eutrophication Risk levels in the NW Iberian coast
(SARTI, 2021)
Article
Accés obertA portable module has been used to measure inorganic nutrients on the NW coast of the Iberian Peninsula during summer of 2019. The results allow us to know the variability of nutrient concentration and study the potential ... -
Valorization of ammonia concentrates from treated urban wastewater using liquid–liquid membrane contactors
(2016-05-21)
Article
Accés obertThe removal of ammonium from tertiary effluents by zeolites generates basic ammonia concentrates (up to 1–3 gNH3/L in 1–2 g NaOH/L). This study evaluates the use of hollow fibre liquid–liquid membrane contactors (HFMCs) ... -
Viscosity and mass diffusion coefficient of ammonia/ethylammonium nitrate mixtures
(International Institute of Refrigeration, 2021)
Text en actes de congrés
Accés restringit per política de l'editorialEthylammonium nitrate shows an enhanced ammonia solubility due to the formation of strong hydrogen bonds. This protic ionic liquid also shows negligible vapour pressure and shares many properties with water. These attractive ...