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Book
Le Césium
Authors: --- --- ---
ISBN: 1280962054 9786610962051 1417561262 2759801268 9781417561261 9781280962059 Year: 2000 Publisher: Les Ulis, France EDP Sciences

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Abstract

Caesium-137: properties of this radionuclide, its impact on the soils, water, the food chain, risks for the environment and the populations. The question is: how we can get rid of this burdensome waste.

Keywords

Cesium. --- Caesium --- Alkali metals


Book
Materials for Nuclear Waste Immobilization
Authors: ---
ISBN: 3039218476 3039218468 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The book outlines recent advances in nuclear wasteform materials including glasses, ceramics and cements and spent nuclear fuel. It focuses on durability aspects and contains data on performance of nuclear wasteforms as well as expected behavior in a disposal environment.


Book
Catalysis by Precious Metals, Past and Future
Authors: ---
ISBN: 3039287230 3039287222 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The future of the precious metals is shiny and resistant. Although expensive and potentially replaceable by transition metal catalysts, precious metal implementation in research and industry shows potential. These metals catalyze oxidation and hydrogenation due to their dissociative behavior toward hydrogen and oxygen, dehydrogenation, isomerization, and aromatization, etc. The precious metal catalysts, especially platinum-based catalysts, are involved in a variety of industrial processes. Examples include Pt–Rh gauze for nitric acid production, the Pt/Al2O3 catalyst for cyclohexane and propylene production, and Pd/Al2O3 catalysts for petrochemical hydropurification reactions, etc. A quick search of the number of published articles in the last five years containing a combination of corresponding “metals” (Pt, Pd, Ru, Rh and Au) and “catalysts” as keywords indicates the importance of the Pt catalysts, but also the continuous increase in the contribution of Pd and Au. This Special Issue reveals the importance of precious metals in catalysis and focuses on mono- and bi-metallic formulations of any supported precious metals and their promotional catalytic effect of other transition metals. The application of precious metals in diverse reactions, either homogeneous or heterogeneous, and studies of the preparation, characterization, and applications of the supported precious metal catalysts, are presented.

Adsorption of metals by geomedia : variables, mechanisms, and model applications
Author:
ISBN: 012384245X 9786611025946 1281025941 008049868X 9780080498683 9780123842459 Year: 1998 Publisher: San Diego : Academic Press,

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Abstract

Adsorption of Metals by Geomedia, serves as a needed resource for this topic which has received much attention during the past 15 years. The book provides an in-depth review of the field, followed by numerouschapters that document the current status of adsorption research for a variety of metals by geomedia ranging from individual minerals to sediments and soils. Adsorption mechanisms are detailed and precipitation is presented as a distinct sorption process.Virtually all factors affecting the extent of metal adsorption are examined, including the effects of selected anions, competition

Keywords

Geochemistry --- Metals --- Soil absorption and adsorption --- Géochimie --- Absorption and adsorption --- 631.414.3 --- 631.416.8 --- -Soil absorption and adsorption --- #ABIB:acol --- Absorption in soils --- Adsorption in soils --- Soil absorption --- Soil adsorption --- Soil sorption --- Sorption, Soil --- Soil chemistry --- Soil permeability --- Soil physics --- Metallic elements --- Chemical elements --- Ores --- Metallurgy --- Chemical composition of the earth --- Chemical geology --- Geological chemistry --- Geology, Chemical --- Chemistry --- Earth sciences --- Absorption. Adsorption --- Metals and their compounds. Heavy metals in soil --- 631.416.8 Metals and their compounds. Heavy metals in soil --- 631.414.3 Absorption. Adsorption --- Géochimie --- Molybdenum. --- Nickel. --- Metals. --- Strontium. --- HUMIC SUBSTANCES --- GIBBSITE --- EXAFS --- Sand. --- Adsorption. --- Septanium --- CLAYS --- Citric acid. --- Data treatment --- Modeling. --- Lead. --- MODELLING --- PB --- Cadmium. --- Goethite. --- Cesium. --- Kaolinite. --- Solids. --- Uranium. --- Groundwater. --- Aluminum. --- Ferihydrite --- Copper. --- Native element minerals --- Transition metals --- Aluminium --- Group 13 elements --- Light metals --- Ground water --- Subterranean water --- Underground water --- Water, Underground --- Water --- Hydrogeology --- Actinide elements --- Transuranium elements --- Solid state physics --- Transparent solids --- Clay minerals --- Caesium --- Alkali metals --- Allcharite --- Gothite --- Xanthosiderite --- Hydroxide minerals --- Group 14 elements --- Clay modeling --- Modelling --- Molding (Clay, plaster, etc.) --- Clay --- Sculpture --- Carboxylic acids --- Sorption --- Separation (Technology) --- Surface chemistry --- Quartz sand --- Aggregates (Building materials) --- Sediments (Geology) --- Alkaline earth metals --- Chromium group --- Technique --- Monograph --- Geochemistry. --- Soil absorption and adsorption. --- Absorption and adsorption.

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