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Applied Geochemistry
Papers 4941
1 page of 495 pages (4,941 results)
Published on Jul 1, 2019in Applied Geochemistry 2.89
Simon D. Herzog1
Estimated H-index: 1
(RU: Roskilde University),
Sarah Conrad2
Estimated H-index: 2
(Luleå University of Technology)
+ 2 AuthorsEmma S. Kritzberg21
Estimated H-index: 21
(Lund University)
Abstract Rivers have traditionally been viewed as negligible sources of iron (Fe) to marine waters, as most Fe gets lost during estuarine mixing. However, recent findings demonstrate that Fe from boreal rivers display a higher resistance towards salinity-induced aggregation, presumably due to stabilizing interactions with organic matter. Previous studies have shown that Fe (oxy)hydroxides are selectively removed by aggregation processes, and that organic Fe complexes are less affected by increas...
Published in Applied Geochemistry 2.89
Gina Kuippers1
Estimated H-index: 1
(University of Manchester),
Christopher Boothman18
Estimated H-index: 18
(University of Manchester)
+ -3 AuthorsJohn Lloyd78
Estimated H-index: 78
(University of Manchester)
Abstract Isosaccharinic acid (ISA) forms through alkaline hydrolysis of cellulose in intermediate level nuclear waste and is a strong complexant of metals with the potential to mobilize priority radionuclides in an underground geological disposal facility (GDF). In this study, microbial ISA degradation was studied under anaerobic conditions with Fe(III) oxyhydroxide as the terminal electron acceptor at pH 7 to 10, representative of conditions in the geosphere surrounding a geological disposal fa...
Published in Applied Geochemistry 2.89
Hiroshi Hasegawa31
Estimated H-index: 31
(Kanazawa University),
M. Abdullah Al Mamun1
Estimated H-index: 1
(Kanazawa University)
+ -3 AuthorsIsmail M.M. Rahman17
Estimated H-index: 17
(Fukushima University)
Abstract Chelators have proven to be effective extractants in soil washing and represent a suitable remediation technology for potentially toxic elements (PTEs) from contaminated sites. In this paper, the extraction of lead (Pb), copper (Cu), and zinc (Zn) from contaminated real and reference soils using both biodegradable (EDDS and HIDS) and persistent (EDTA and DTPA) chelators was investigated. Different metal–chelator complex formation constants, pH, extraction temperature, and mechanochemica...
Published in Applied Geochemistry 2.89
Julie K. Pearce10
Estimated H-index: 10
(UQ: University of Queensland),
Dirk Kirste12
Estimated H-index: 12
(SFU: Simon Fraser University)
+ -3 AuthorsS. D. Golding35
Estimated H-index: 35
(UQ: University of Queensland)
Abstract Carbon dioxide streams stored geologically from industrial sources e.g. coal oxy-fuel firing sources, steel or cement processing, may contain gas impurities including O2, NOx and SOX which may have higher reactivity to rock than pure CO2. Supercritical CO2 with O2 and SO2 impurities (0.16 and 2% respectively) was reacted with core from the Precipice Sandstone, Evergreen Formation, and Hutton Sandstone of the Surat Basin, Australia. The Precipice Sandstone is a low salinity target reserv...
Published in Applied Geochemistry 2.89
Ralf Kautenburger12
Estimated H-index: 12
(Saarland University),
Kristina Brix (Saarland University), Christina Hein6
Estimated H-index: 6
(Saarland University)
Abstract In the scientific community, a consensus exists to store high-level radioactive waste (HLW) in deep geological formations for several hundred thousand years to protect humanity and the environment. After a container damage followed by the release of HLW components, the retention of the radionuclides can be affected by diverse chemical reactions in the geosphere. In this study, geochemical effects possibly influencing the retention of the radionuclides were investigated. Therefore, the r...
Published in Applied Geochemistry 2.89
Montserrat Filella31
Estimated H-index: 31
(University of Geneva),
Peter M. May28
Estimated H-index: 28
(Murdoch University)
Abstract Relatively little information is available in the literature regarding the speciation and solubility of tantalum in aqueous solutions. The available thermodynamic data have been critically evaluated and entered into a thermodynamic database. The JESS suite of computer programs has been used to achieve thermodynamic consistency and provide a critically-selected set of equilibrium constants that can later be used for modelling purposes. The utility of the resulting set is limited by a lac...
Published in Applied Geochemistry 2.89
Patricia M. Fox13
Estimated H-index: 13
(LBNL: Lawrence Berkeley National Laboratory),
Ruth M. Tinnacher1
Estimated H-index: 1
(LBNL: Lawrence Berkeley National Laboratory)
+ -3 AuthorsPeter S. Nico23
Estimated H-index: 23
(LBNL: Lawrence Berkeley National Laboratory)
Abstract Engineered barrier systems designed to isolate high-level radioactive waste utilize bentonite, a montmorillonite-rich material, to restrict contaminant transport due to its low hydraulic conductivity and high adsorption capacity. High temperatures (100–200 °C) near waste canisters resulting from radioactive decay may alter the clay's ability to adsorb contaminants. In this study, we examine U(VI) adsorption onto two different bentonite samples subjected to (1) 18 years of in situ heatin...
Published in Applied Geochemistry 2.89
Elena Korobova8
Estimated H-index: 8
Sergey Romanov2
Estimated H-index: 2
+ -3 AuthorsNikolay Dogadkin
Abstract The main goal of the work was to check whether the regularity in the 137Cs distribution, established in the undisturbed forest elementary landscape-geochemical system (ELGS: i.e., the upper - slope - closing depression), is the same in the meadow system. Cs-137 activity was measured with a step of 1 m by field gamma-spectrometer along three parallel cross-sections, the two of them 185 m long and 15 m away from each other, the third one in between (at the selected measurement points). Ob...
Published in Applied Geochemistry 2.89
Mohammed Hssaisoune1
Estimated H-index: 1
Lhoussaine Bouchaou15
Estimated H-index: 15
+ -3 AuthorsPradeep K. Aggarwal27
Estimated H-index: 27
(IAEA: International Atomic Energy Agency)
Abstract The Souss-Massa plain, an important agriculture area of the Middle Western of Morocco, is a depression zone filled with Plio-Quaternary sediments which are overlying a complex multi-layered sedimentary basement. Over the last decades, population growth, agriculture development and recurrent droughts have been increasing the pressure on the aquifers of the region. The shallow aquifer is intensively exploited. About 94% of the water resources in the basin are used for agriculture. Groundw...