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Occurrence, genesis and environmental significance of schwertmannite in re-flooded Acid Sulfate Soils in the Lower Murray Reclaimed Irrigation Area
genesis environmental significance schwertmannite re-flooded Acid Sulfate Soils the Lower Murray Reclaimed Irrigation Area
2012/3/30
The Lower Murray Reclaimed Irrigation Area (LMRIA) comprises approximately 5,000ha of flood-irrigated agricultural land located on the floodplain of the River Murray between Mannum and Lake Alexandrin...
Will sea-level rise solve our coastal acid sulfate soil issues?
sea-level rise solve coastal acid sulfate soil issues
2012/3/30
Sea level has risen approximately 1.2 mm/year over the last 100 years (Hennessy et al., 2004) and is predicted to rise up to 80 cm by 2100 relative to 1990 sea levels (IPCC, 2007). The number of extre...
Dissolution of clay sediments in acid-sulfate systems
Dissolution clay sediments acid-sulfate systems
2012/3/30
Significant quantities of sulfidic sediments have been reported to have recently accumulated in inland wetlands of Murray Darling Basin due to a combination of long periods of inundation and the entra...
Effect of Kaolinite and Sulfate on the Formation of Hydroxy-Aluminum Compounds
Bayerite CMS Clay KGa-2 Gibbsite Hydroxysulfate Noncrystalline Compounds Nordstrandite
2011/12/2
Abstract: OH-Al solutions were prepared by adding appropriate amounts of NaOH to AlCl3 to obtain OH/Al mole ratios of 2.0, 2.5, 2.7, 3.0, and 3.3 in the final suspension. Solid Na2SO4 and Georgia kaol...
Effect of Phosphate on the Formation of Nanophase Lepidocrocite from Fe(II) Sulfate
Goethite Lepidocrocite Nanophase Phosphate Rietveld Analysis
2011/12/6
Abstract: The effect of phosphate on the formation of Fe oxides from Fe(II) salts is important because phosphate is a ubiquitous anion in natural environments. For this reason, the products formed by ...
Role of Tartaric Acid in the Inhibition of the Formation of Al13 Tridecamer Using Sulfate Precipitation
Al-Hydroxy Sulfates Al13 Tridecamer Powder XRD Data SEM Solid-State NMR Tartaric Acid
2011/12/7
Abstract: Polynuclear Al13 tridecamer species are the major hydrolyzed species of aluminum, but their occurrence in terrestrial environments has not been established. X-ray diffraction (XRD), 27Al nuc...
Influence of Mn2+ and pH on the Formation of Iron Oxides from Ferrous Chloride and Ferrous Sulfate Solutions
Goethite Infrared spectroscopy Iron oxides Lepidocrocite Maghemite Manganese Synthesis X-ray powder diffraction
2012/1/6
The influence of Mn2+ on the formation of Fe oxides at pHs of 6.0 and 8.0 and varying Mn/Fe molar ratios (0, 0.1, 1.0, and 10.0) in the FeCl2-NH4OH and FeSO4-NH4OH systems was studied by X-ray powder ...
Adsorption and Desorption of N-Methyl 8-Hydroxy Quinoline Methyl Sulfate on Smectite and the Potential Use of the Clay-Organic Product as an Ultraviolet Radiation Collector
Adsorption Cation-exchange capacity N-methyl 8-hydroxy quinoline methyl sulfate Pharmaceutical Smectite Visible-ultraviolet spectroscopy
2012/1/5
The interaction between N-methyl 8-hydroxy quinoline methyl sulfate, a drug that absorbs erymathogenic near-ultraviolet radiation, and smectite was studied by X-ray powder diffraction (XRD) and adsorp...
Mechanism of Sulfate Adsorption by Kaolinite
Adsorption Bidentate Hydroxyl Kaolinite Monodentate Sulfate
2012/2/6
Sulfate adsorption on kaolinite was followed at 0.7 礶q/ml to 99 礶q/ml solution concentrations at 30癈 and at pH 6.0, and the amount of OH− ions released and the change in surface charge were dete...