radioactive water Articles
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Case study - Dansk Dekommisionering
Cost effective and environmentally correct handling of radioactive wastewater Client: Dansk Dekommissionering, formerly known as Forskningscenter Risø. The Institution Dansk Dekommissionering was established in September 2003 with the purpose of taking over the responsibility for the nuclear facilities at the Risoe Research Centre. Industry: Handling of radioactive water from different ...
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The estimation of radiation doses in human organs due to natural and artificial radioactivity in surface waters of the Ebro river basin (Northeast Spain)
This paper reports the estimation of the radiation doses in the human body in the Ebro river basin (Northeast Spain), following drinking water ingestion by measuring 40K, 226Ra, 90Sr and 3H. The equivalent dose in ten different organs was estimated. Dose calculations were performed by means of the GENII computer program. The lowest equivalent dose calculated through ingesting drinking water was ...
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Prj 9121 - Deactivation of radioactive water - Case Study
Although radioactive isotopes are engaged for many applications (i.e. medicine, metallurgy, etc.), the major sources of soil and water contamination with radioactive substances are connected to nuclear waste processing and to uranium mining operations. One of the principal carcinogens is plutonium and any soil or water contaminated by plutonium should be carefully removed and disposed in ...
By Biomedy AG
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App Rx503 - Decontamination from radionuclides of condensates of evaporators at K503 nuclear power plant - Case Study
Processing of radioactive wastes leads to the formation of radioactive condensates of evaporators (debalance water) containing ammonia as the basic compound in the concentration of 7 - 25 mg/dm3 and having a pH value ranging 7.0 - 8.5. Besides, oils and other organic compounds are usually present in the water. RAXORB3/5, a granular (0.4 - 1.0 mm spheres) selective ion-exchanger, chemically ...
By Biomedy AG
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Establishment of a radioactive contamination index in seawater from the Gulf and Pacific coasts in Mexico
This paper intends to establish one radioactive contamination index in seawater based on the relation A1/A2, where A1 is the radioactivity due to the contaminant radioisotope 137Cs and A2 is the radioactivity due to the natural radioisotope 40K, both expressed either as Bq/l in seawater or Bq/g in sea salt. At a second step, the same volumes of marine sediments were detected, but in this case ...
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Investigation of contaminant transport in groundwater from the tailings pond of uranium mine: a case study
The present study investigates the spreading of radioactive materials through groundwater by developing a groundwater contaminant transport model. The model was analysed in the steady state, and was then applied in the transient state to predict the spreading of uranium and its daughter product in the region. The model was verified using the simulated and measured velocity of groundwater. It was ...
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Blending as the best compliance option for the management of radioactivity in drinking water supplied from the deep sandstone aquifer in Southern Jordan
This paper describes management options and interventions taken by the Government of Jordan to ensure that the quality of drinking water supplied to consumers via the Disi Water Conveyance Project (DWCP) meets Jordanian drinking water standards and WHO guidelines for drinking water quality in respect of their radiological composition. Results from an initial survey of radioactivity present in ...
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Chemical Mass Transport Measurements to Determine Flexible Membrane Liner Lifetime
The prediction of the service life of flexible membrane liners (FMLs) when exposed to chemicals has usually been by way of testing for physical or mechanical property changes after periodic exposure times. This paper presents an alternate approach by evaluating the chemical properties via five different mass transport related measurements of the exposed FML. These tests are water vapor ...
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Radioactivity and hydrochemical properties of certain thermal Turkish spa waters
The study aims to determine the radioactivity levels of thermal waters which have been used seasonally or permanently in spas for therapeutic intentions. Samples were collected from spas in different regions of Turkey. Some radionuclides (40K, 232Th, 226Ra, 137Cs), gross alpha (GA) and gross beta (GB) activities, and physical and some chemical parameters were measured. Gamma radiation ...
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Management of water resources assessment for nuclear power plants in China
To deal with global warming and energy shortages, the nuclear power industry has flourished in China. Operation of a nuclear power plant consumes a large amount of water and discharges radioactive wastewater into nearby water bodies. Therefore, assessment and management of water resources are crucial for such projects. This article proposes the contents, procedures and methods of water ...
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Direct contact membrane distillation for nuclear desalination, Part II: experiments with radioactive solutions
This paper proposes the application of Direct Contact Membrane Distillation (DCMD) coupled with a nuclear reactor for water desalination and for low- and medium-level radioactive liquid waste concentration. Both laboratory and pilot plant experiments were carried out using the membranes reviewed in Part I of this paper. The effects of process parameters on the productivity and quality of DCMD ...
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EPA 2009 Protective Action Guideline Levels
WE HAVE BEEN WAITING SINCE 1992 THE Old Document: In 1992 the EPA published its Manual of Protective Action Guides and Protective Actions for Nuclear Incidents. This is an excellent manual. But One Major Fault: All radiation levels are given in REM per year. There is no guidance for the layman in terms airborne or waterborne concentrations in terms of micro Cuires or Becquerel /Liter for ...
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An overview of nuclear desalination: history and challenges
Both nuclear and desalination technologies are mature and proven by experience, and are commercially available from a variety of suppliers. From the early days of the two technologies, it was realised that nuclear energy could be utilised to overcome two of the challenges to the development of humankind, namely the sustainable supply of electricity and water. As early as the 1960s, the ...
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Prevention measures against radiation exposure to radon in well waters: analysis of the present situation in Finland
Naturally occurring radioactive elements are found in all groundwaters, especially in bedrock waters. Exposure to these radioactive elements increases the risk of cancer. The most significant of these elements is radon which, as a gas, is mobile and dissolves in groundwater. In Finland, water supply plants are obliged to carry out statutory monitoring of the water quality, including radon. ...
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Assessment of natural radioactivity and heavy metals in Burullus Lake, Egypt
The Egyptian lakes have economic, social and environmental significance. To predict the radiological impacts of environmental radioactivity, it is necessary not only to define their concentrations but also their behaviour in different environmental systems. Also, recently, trace elements including rare earth elements have begun to be used in large amounts for advanced industries. These are ...
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What is Zeolite Water Treatment Media?
How is zeolite water treatment media used in water & wastewater treatment? Technology is constantly evolving and changing to meet the needs of humanity, and one of those needs is for clean water. The water treatment industry is always researching, testing, and developing new and improved ways in which to treat wastewater and drinking water in ways that are both efficient and environmentally ...
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Radiation Water Monitor in Real-Time and Continuous at Jefferson NL 2006
Jefferson National Laboratory is a high tech laboratory located on a beautiful campus in suburban Virginia. Their research is centered on their high-energy electron accelerator. Energies generated are as high as 6 Gev continuous with currents up to 200 micro Amps. Where does the high-energy accelerator beam go after smashing atoms in the experimental sample? It impacts into a tank of purified ...
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Recycling process water containing Radioactive Contamination (NORMs) - Case Study
The recycling of process water containing radioactive contamination within a Refurbishment Facility using Star-Sep™ Ceramic Crossflow Filtration This crossflow microfiltration process, using Mantec’s patented star channel Star-Sep™ Ceramic Membranes, renders the filtered water bacterially inactive and free of NORMs, which means that it can be re-used within the process. Mantec ...
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Low-flow groundwater sampling on a nuclear site - Case Study
Nuclear licensed site use of low-flow groundwater sampling shows: Reduced time, reduced quantity of purge water – both thus reducing cost - and reduced risk of operator contact especially with potentially radioactive-contaminated purge water thanks to a self-contained enclosed system. One of the biggest headaches on site is the purge water and the expense of getting rid of it – after ...
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EU Directive vs EU Regulation: What`s The Difference and what does this mean for your EHS compliance program?
Knowing the difference between an EU Directive and an EU Regulation is an important distinction every EHS professional working and/or operating in the region should know. By Tjeerd Hendel-Blackford, Mark Atkinson, Riccardo Zorgno and Veronika Krupcikova Legal terminology is designed to confuse. If it was simple, there would be no need for lawyers! For example, as we discussed in another ...
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