Results 81 to 90 of about 5,205 (220)

Water Cationic Composition on Potassium Displacement in Tropical Soils

CLEAN – Soil, Air, Water, Volume 54, Issue 6, June 2026.
ABSTRACT This study aimed to evaluate the interplay between water hardness, sodium adsorption ratio (SAR), and electrical conductivity (EC); with tropical soil physical, chemical, and mineralogical characteristics on the displacement K+. The water quality treatments represented solutions suitable and not suitable for irrigation, with varying levels of ...
Miguel Angel Corea Alvarez, Michael Silveira Thebaldi, Marina Neves Merlo, Daniela Conceição de Jesus, Jaqueline dos Santos Soares, Elvis Márcio de Castro Lima, Adriano Valentim Diotto, Luiz Antonio Lima, Luiz Fernando Coutinho de Oliveira   +8 more
wiley   +1 more source

Fluoride removal by adsorption on thermally treated lateritic soils

Bulletin of the Chemical Society of Ethiopia, 2012
The ability of lateritic soils to remove fluoride from water has been studied. Important issues considered in the study include the relation between the mineral composition of soils and their ability to remove fluoride, the effect of thermal treatment of
Kefyalew Gomoro, Feleke Zewge, Bernd Hundhammer, Negussie Megersa   +3 more
doaj  

Loess Studies in Aotearoa New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway, David J. Lowe, Bradley J. Pillans, Peter C. Almond, Alan S. Palmer   +4 more
wiley   +1 more source

Adsorption on hydrous oxides.Ⅲ.Fulvic acid and humic acid on goethite,gibbsite and imogolite

, 1977
Adsorption isotherms were obtained for fulvic and humic acids on synthetic gibbsite and goethite and on a natural imogolite. The results were interpreted with the help of spectra of the adsorption complexes, and measurements of hydroxyl displaced.
R. L. PARFITT, A. R. FRASER, V. C. FARMER   +2 more
core  

Reflectância espectral e mineralogia de materiais formados sobre diabásio Spectral reflectance and mineralogy of soil materials developed from diabase

Scientia Agricola, 2000
O presente estudo teve por objetivo caracterizar diferentes fases de intemperismo de um solo e relacioná-las com seu comportamento espectral. Um perfil pedológico desenvolvido sobre diabásio da região de Capivari-SP, foi descrito morfologicamente ...
Celso Augusto Clemente, José Alexandre Melo Demattê, Álvaro Luiz Mafra, Sérgio Ricardo Portes Bentivenha   +3 more
doaj   +1 more source

Effect of gibbsite in lithomargic clay on the mechanical and physical properties of limestone calcined clay cement

International Journal of Ceramic Engineering & Science
Cement, a non‐renewable yet essential commodity in the construction industry remains the most used material despite the high CO2 emissions associated with the production.
Clement Nyarko Opoku, Anthony Andrews, Martinson Addo Nartey, Eric Kwame Asare   +3 more
doaj   +1 more source

The Direct Cold Sintering of α-Al₂O₃ Ceramics in a Pure Water Medium

Ceramics
Porous α-Al2O3 ceramics are a highly sought-after material with a multitude of applications; for example, they are used as filters, substrates, biomedicine materials, etc.
Anastasia A. Kholodkova, Maxim V. Kornyushin, Arseniy N. Khrustalev, Levko A. Arbanas, Andrey V. Smirnov, Yurii D. Ivakin   +5 more
doaj   +1 more source

DETERMINATION OF THE FRACTION OF GIBBSITE AND BOEHMITE FORMS OF ALUMINUM IN TANK 51H SLUDGE [PDF]

, 2008
The Savannah River National Laboratory (SRNL) was tasked with developing a test to determine the fraction of the gibbsite and boehmite forms of aluminum in the sludge solids.
Hay, M, Daniel McCabe, D, Kofi Adu-Wusu, K   +2 more
core   +1 more source

A new microenvironment for the formation of clay minerals: the example of authigenic halloysite-7Å and gibbsite in a stalactite from Agios Georgios Cave, Kilkis, north Greece

International Journal of Speleology, 2015
An unusual authigenic origin for halloysite and gibbsite is reported in a stalactite from Agios Georgios Cave, Kilkis. This speleothem includes mostly pure calcite whereas minor areas of Mg-rich calcite and scarce dolomite are present in four growth ...
Elena Ifandi, University of Patras, Basilios Tsikouras, Dimitrios Papoulis, Konstantin Hatzipanagiotou, Aspasia Antonelou   +4 more
doaj   +1 more source

The Problem of the Formation of Boehmite and Gibbsite in Bauxite-Bearing Lateritic Profiles

, 2022
The study of a large amount of factual material about the formation conditions of gibbsite or boehmite and their mutual transformations in lateritic bauxites allowed us to solve the problem of boehmite formation and its spatial and genetic relationship ...
Marina Makarova, Philimon Melnikov, Elena Shipilova, Vladimir Mamedov, Natalia Boeva   +4 more
core   +1 more source