Subject: ambient temperature / Subject term: hydrogen and clay

Author:: Alexander A. Grigoryan; Daphne R. Jalique; Simcha Stroes-Gascoyne; Gideon M. Wolfaardt; Peter G. Keech; Darren R. Korber
Source:: Heliyon 2021 v.7 no.10 pp. e08131
ISSN:: 2405-8440
Subject:: Alcaligenaceae; Bacillaceae; Chloroflexi; Clostridiaceae; Desulfobacteraceae; Desulfobulbaceae; Enterobacteriaceae; Hydrogenophilaceae; Peptococcaceae; Peptostreptococcaceae; Planococcaceae; Pseudomonadaceae; Rhodospirillaceae; Veillonellaceae; acetogens; ambient temperature; bacterial communities; bentonite; biomarkers; clay; corrosion; dormancy; functional diversity; genes; hydrogen; metabolites; microbial activity; nuclear fuels; prediction; prokaryotic cells; sulfates; sulfides; sulfur; water activity; Wyoming
Abstract:: ... Microorganisms in clay barriers could affect the long-term performance of waste containers in future deep geological repositories (DGR) for used nuclear fuel through production of corrosive metabolites (e.g., sulfide), which is why clay materials are highly compacted: to reduce both physical space and access to water for microorganisms to grow. However, the highly compacted nature of clays and the ...
DOI:: 10.1016/j.heliyon.2021.e08131
: https://doi.org/10.1016/j.heliyon.2021.e08131

Author:: Magdalena Pajak
Source:: Water, air, and soil pollution 2021 v.232 no.2 pp. 83
ISSN:: 0049-6979
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; air; ambient temperature; clay; comparative study; dyes; energy-dispersive X-ray analysis; hydrogen; smectite; soil pollution; sorption isotherms; water
Abstract:: ... The present research evaluates the influence of modification of smectite clay (BC) on its adsorption capacity of anionic dyes from aqueous solutions. Thermal (BC 250), acidic (BC H₂SO₄), and alkaline (BC NaOH) modification of clay was carried out. The clays were characterized by X-ray powder diffraction, energy-dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. Adsorption ...
DOI:: 10.1007/s11270-021-05032-3
: https://doi.org/10.1007/s11270-021-05032-3

Author:: David Plackett; Ana Siu; Qingfeng Li; Chao Pan; Jens Oluf Jensen; Søren Fæster Nielsen; Anastasia A. Permyakova; Niels J. Bjerrum
Source:: Journal of membrane science 2011 v.383 no.1-2 pp. 78-87
ISSN:: 0376-7388
Subject:: X-radiation; ambient temperature; artificial membranes; cations; clay; dimensional stability; electric power; fuel cells; hydrogen; hydrogen bonding; infrared spectroscopy; ion exchange; permeability; phosphoric acid; polymers; relative humidity; salts; tensile strength
Abstract:: ... Good dispersion of modified laponite clay was achieved in polybenzimidazole (PBI) solutions which, when cast and allowed to dry, resulted in homogeneous and transparent composite membranes containing up to 20wt% clay in the polymer. The clay was organically modified using a series of ammonium and pyridinium salts with varying polarity and hydrogen-bonding capacity. Clay modification by ion-exchang ...
DOI:: 10.1016/j.memsci.2011.08.038
: https://doi.org/10.1016/j.memsci.2011.08.038

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