Results 21 to 30 of about 1,440,713 (245)

Chemical Mechanisms Involved in the Coupled Attack of Sulfate and Chloride Ions on Low-Carbon Cementitious Materials: An In-Depth Study

Applied Sciences, 2023
This study aims to analyze the individual and combined chemical attacks of sulfate and chloride ions on cementitious materials and assess the efficiency of some selected additives (fly ash, blast furnace slag, and metakaolin) in countering this combined ...
François El Inaty, Mario Marchetti, Marc Quiertant, Othman Omikrine Metalssi   +3 more
doaj   +1 more source

PM1 Chemical Characterization during the ACU15 Campaign, South of Mexico City

Atmosphere, 2018
The “Aerosoles en Ciudad Universitaria 2015” (ACU15) campaign was an intensive experiment measuring chemical and optical properties of aerosols in the winter of 2015, from 19 January to 19 March on a site in the south of Mexico City. The mass
Dara Salcedo, Harry Alvarez-Ospina, Oscar Peralta, Telma Castro   +3 more
doaj   +1 more source

FeSO4/lime mixtures - an alternative to mineral sulfur and lime fertilizer for summer rape

Plant, Soil and Environment, 2017
Sulfur (S) is one of six important macronutrients and due to the strong reduction of atmospheric S, it has to be fertilized to cover the S demand of plants - especially of those with a high S demand.
Diedrich STEFFENS, Janina HOFFMANN
doaj   +1 more source

Thermodynamic Modelling of Harsh Environments on the Solid Phase Assemblage of Hydrating Cements Using PHREEQC

Applied Sciences, 2022
Poor durability of reinforced concrete structures can lead to serious structural failures. An accurate model to observe the effects of aggressive agents like carbonation, sulfate ingress, and seawater solutions on the solid phase assemblage will help ...
Niall Holmes, Mark Tyrer, Denis Kelliher
doaj   +1 more source

Solid–Liquid Phase Equilibria of the Aqueous Quaternary System Rb⁺, Cs⁺, Mg²⁺//SO₄²⁻ - H₂O at T = 323.2 K

Separations
Sulfate-type salt lakes constitute over half of the total salt lakes in China and are rich in rare elements, such as rubidium and cesium. However, the complex interactions between ions make the separation and extraction process quite challenging.
Zhangfa Yu, Ying Zeng, Xuequn Li, Hongbo Sun, Longgang Li, Wanghai He, Peijun Chen, Xudong Yu   +7 more
doaj   +1 more source

Electron acceptors for sulphate-reducing bacteria Desulfomicrobium sp. in the process of oxidation of organic compounds

Біологічні студії, 2013
In the presence of sulfate in the medium? sulfate-reducing bacteria Desulfomicro­bium sp. use it as a final electron acceptor with it’s reduction to hydrogen sulfide. Except sulfate, bacteria Desulfomicrobium sp.
K. V. Sholiak, T. B. Peretyatko, S. P. Gudz   +2 more
doaj   +1 more source

Stable Isotopes of Nitrate, Sulfate, and Carbonate in Soils From the Transantarctic Mountains, Antarctica: A Record of Atmospheric Deposition and Chemical Weathering

Frontiers in Earth Science, 2020
Soils in ice-free areas in Antarctica are recognized for their high salt concentrations and persistent arid conditions. While previous studies have investigated the distribution of salts and potential sources in the McMurdo Dry Valleys, logistical ...
Melisa A. Diaz, Melisa A. Diaz, Jianghanyang Li, Greg Michalski, Greg Michalski, Thomas H. Darrah, Thomas H. Darrah, Byron J. Adams, Diana H. Wall, Ian D. Hogg, Ian D. Hogg, Noah Fierer, Susan A. Welch, Susan A. Welch, Christopher B. Gardner, Christopher B. Gardner, W. Berry Lyons, W. Berry Lyons   +17 more
doaj   +1 more source

A review on source identification of dissolved sulfate in groundwater: Advances, problems and development trends

地质科技通报, 2022
Effective identification of the sources and biogeochemical processes of dissolved sulfate in groundwater is an important prerequisite for ensuring drinking water safety and aquatic ecological security and is of significance to manage and protect ...
Menggui Jin, Jie Zhang, Zhixin Zhang, Mingda Cao, Xin Huang   +4 more
doaj   +1 more source

Determination of lipid-bound sulfate by ion chromatography and its application to quantification of sulfolipids from kidneys of various mammalian species

Journal of Lipid Research, 2001
A variety of procedures have been developed for determining the sulfate ester content of various biomolecules. Ion chromatography (IC), that is, quantitation of ionic substances by ion conductimetry after separation by anion-exchange chromatography, has ...
Keiko Tadano-Aritomi, Toshiyuki Hikita, Atsushi Suzuki, Hidenao Toyoda, Toshihiko Toida, Toshio Imanari, Ineo Ishizuka   +6 more
doaj   +1 more source

Origins of Sulfate in Groundwater and Surface Water of the Rio Grande Floodplain, Texas, USA and Chihuahua, Mexico

Hydrology, 2022
Sulfate isotopes (δ34S, δ18OSO4) interpreted in conjunction with sulfate concentrations show that sulfate of both agricultural and geologic sources is present in groundwater and surface water in the Rio Grande flood plain within the Hueco Bolsón.
Christopher Eastoe, Barry Hibbs, Mercedes Merino, Jason Dadakis   +3 more
doaj   +1 more source