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This waste can contaminate water, soil and air if it is not disposed of properly. The waste from these processes is more radioactive than the natural rock because the natural radioactive material in the earth is now exposed and concentrated. The second is to use strong chemicals to dissolve uranium from underground rocks into ground water, and then pump the water to the surface.
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mining industry can retrieve uranium in two ways. The first is to mine rock that contains uranium. It gives off almost half of the radioactivity from all forms of uranium found in the environment. Uranium-234 is less than one percent of all forms of natural uranium, but is much more radioactive. More than 99 percent of the uranium found in the environment is in the form of U-238. Soil can be moved by water and blown by wind, which moves uranium into streams, lakes and surface water. Uranium is present naturally in virtually all soil, rock and water. Specifically, U-235 can be concentrated in a process called “enrichment,” making it "fissile" and suitable for use in nuclear reactors or weapons. Uranium is used in nuclear power generation.
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The majority of background radiation occurs naturally and a small fraction comes from man-made elements. Uranium is weakly radioactive and contributes to low levels of natural background radiation background radiationRadiation that is always in the environment. For example, uranium has thirty-seven different isotopes, including uranium-235 and uranium-238.: U-238, U-235 and U-234. Uranium has three primary naturally occurring isotopes isotopesA form of an element that has the same number of protons but a different number of neutrons in the nucleus, giving it a different atomic mass. When refined, uranium is a silvery-white metal. Uranium (chemical symbol U) is a naturally occurring radioactive element. As an alternative, ELCAD has a small footprint, low power consumption (75 W), and operates in atmospheric pressure air. These operating conditions effectively tie ICP-OES/MS to the laboratory. ICP-OES/MS requires high power (>1 kW) and gas (>15 L min-1 Ar) consumption, along with the need for vacuum equipment in the case of ICP-MS. ELCAD has important advantages over conventional, nebulization-based analytical techniques, e.g., inductively coupled plasma (ICP)-OES/MS, which are extensively used as reference techniques for inorganic analysis. In ELCAD/SCGD, the electrolytic solution serves as the sample, just as the solid cathode does in conventional, low-pressure glow discharges. in 1993, is a conically shaped GD microplasma with 3-4 mm base diameter and 3 mm height, operating between an electrolytic solution cathode and a metal (tungsten) rod anode under ~1 kV plasma voltage and 70 mA discharge current (see Figure 1). In essence, ELCAD, introduced by Cserfalvi et al.
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In particular, the electrolyte-cathode atmospheric glow discharge (ELCAD) or Solution Cathode Glow Discharge (SCGD) is an alternative source for a fast elemental analysis of liquids. Glow Discharges operating at atmospheric pressure have shown a strong analytical potential for the fast analysis of liquids. Solution Cathode Glow Discharge Optical Emission Spectroscopy