Description
NFDSR
In the decades after the Second World War, numerous Uranium mines, many of them small, were opened up all over Europe and in other parts of the world. For strategic reasons, these mines were highly focused on production and hardly considered environmental aspects. For a large number of these, remediation is still pending. At many of the more than 87 tailing sites, leaching and milling residues...
Successful decommissioning of offshore oil and gas infrastructure requires an effective and safe approach to assessing and managing chemical and radiological residues. Scale residues frequently accumulate on the interior surfaces of pipes and other structures, and may persist long after extraction operations have ceased. Scale materials can consist of a range of metal contaminants (including...
This paper describes the decontamination process of the old phosphoric acid single-reactor production facility in Serbia, which was in operation from 1969 to 1990, when the production was shut down and the facility itself has been abandoned. After the ministerial decision on dismantling of the facility in 2012, the decontamination activities commenced in August 2016. Following a radiological...
This study aims to assess the radioactive concentration of naturally occurring radioactive materials (NORM) in elected oil and gas facilities in Maysan / southern of Iraq (Al- Bazerkan and Al – Fakkah oil sites) of selected of produced water samples. The radioactivity characterization of the oil sites included laboratory measurements and analysis of the envisaged water samples. There were...
Background:
At the beginning of the 20th century, due to the rapid development of the oil industry and the presence of rich oil fields in Azerbaijan, the rapid development of related industrial petrochemical industries began. One of such areas was the construction and commissioning of iodine and bromine production plants.
Associated radiological problems:
The iodine production...
Brazil is a well recognized mining country, being one of the greatest exporters of iron, cooper and gold, among other metals. In fact, mining activity is in charge of about 5% of the country GDP.
Besides the mining and production of uranium concentrate (for internal consumption), several activities related to NORM are being carried out in the country as, for instance, the phosphate industry,...
The Phosphate Acid Purification Plant of PT. Petrochemical Gresik was decommissioned in 2008. In the decommissioning process, radioactive waste produced by contaminated material in the form of sludge and metal scrap. The radioactive waste is brought for further processing at Center for Radioactive Waste Technology (CRWT) of National Nuclear Energy Agency of Indonesia (BATAN). For radioactive...
H.G. JUNG
GeoEnergy Consult, Frankfurt, Germany
Over the whole life-cycle uranium or REE production at mines, mills and refineries can benefit from adaption of proven nuclear technologies with respect to safety, efficiency and regulatory compliance. Moreover, a sound NORM management helps to operate smoothly and avoids related liability risks.
In particular in the fields...
A decision for decommissioning of Bacau phosphoric acid plant was taken based on a safety assessment of radiation doses at workplaces.
The phosphoric acid production process consists of crashing of phosphoric rocks, chemical attack of the rocks using sulphuric acid, cooling of the resulted products, filtering of the products, concentration and storage of phosphoric acid and disposal of...
NORM-involving industrial practices pose multifaceted environmental and radiation safety issues that need to be managed in a cost-effective but reliably safe manner that satisfies both regulatory and public concerns. In addition to the management and possible remediation of a site itself, often there are also aspects of waste and residue management ranging from burial or landfills to...
Successful removal and decommissioning of subsea oil and gas infrastructure requires a safe and effective approach of assessing and managing waste products. These products, often present as scale on internals of pipelines, include naturally occurring radioactive materials (NORM) and trace metals. Understanding the ecological effects of these contaminants, both individually and in combination,...
INVESTIGATION OF OCCUPATIONAL RADIATION DOSE IN THE MINERAL SEPARATION PLANT OF MAGARINI MINERAL SANDS, KENYA.
H.A. Awadh1, , K.O. Said2
1Jomo Kenyatta University of Agriculture and Technology, Institute of Energy and Environmental Technology
(corresponding author: hamza.abass@yahoo.com)
2Taita Taveta University, Mining and Mineral Processing...
Development of oil industry in Azerbaijan led to formation of attendant industrial facilities such as, iodine production plants which were established mainly in XX century. Iodine production industry caused environmental problems in Azerbaijan on Absheron peninsula as a result of insufficient attention paid to protection of environment in the period of former USSR. Caused environmental...
Rare Earth Research and Development Center (REDC) has been set up at Thailand Institute of Nuclear Technology (TINT), Khlong 5, Pathumthani, Thailand for separation and extraction of rare earth elements from monazite ore in 1995. This facility had been shut down since 2005 and TINT recently is carrying out decommissioning. The aim of this research is the determination of radon concentration in...
This phosphogypsum stack in Pascagoula,Mississippi produced diammonium phosphate form the 1950s thru 2014. They declared bankruptcy in 2015 and due to uncontrolled releases of wastewater decimating large portion of the Gulf fishing area, as well as low levels of Naturally Occurring Radiation Material, the site is now being addressed under US EPA Superfund program, and is one of the top ten...
The reuse of waste leaching nitric acid solution acquired from previously treated, Radium polluted soil collected from Al-Basrah governorate - Al-Rumaila oil field, was investigated using five types of adsorbents (Shamplan plant, Palm fiber, Fresh tea, Bentonite clay and Zeolite 5A) using batch adsorption experiments. Among all, fresh tea and zeolite had the best performance. Therefore, they...
In this work are presented different approaches adopted for radiometrical characterization of different complex matrices taken in three Italian sites currently subjected to decommissioning, highlighting, on the basis of the results obtained, the most important criticalities encountered in carrying out measures also in relation to the different processes adopted in different plants for...
In recent years, with the increasingly strict environmental protection requirements, more and more attention has been paid to the environmental remediation of areas contaminated by natural radioactive materials in industry. At present, there are many areas contaminated by past activities (such as mining of associated mines, storage of waste slag, etc.) in China .The contamination levels in...
OBJECTIVE
This paper describes the studies performed regarding a particular terrain in Spain in which stacks of naturally occurring radioactive material (NORM) is stored, with the objective of proposing a suitable solution for the management of that piece of land. The NORM resulted from a former dicalcium phosphate production plant that used to be located in this site.
**WORK...
In oil and gas activities, NORM can be deposited in tubular wells, surface pipes, ships, pumps and other manufacturing and processing plants. The primary radioisotopes of interest in waste from the petroleum industry are radium-226 (Ra-226) and radium-228 (Ra-228), while lead-210 (Pb-210) is of concern to the gas industries. Now, the petroleum industry is adopting methods for managing and...
Every radiation aid in the industrial sector needs careful supervision to always get a safety permit in accordance with the pegion radiation. It does not need radiation hazards to workers, the community and the environment. In order to avoid the risk of negative risks posed by Tenorm management, BAPETEN as the supervisory body determines Tenorm components derived from natural radionuclides...
DIAMO, the State Enterprise, carries out the elimination of the consequences of the mining and remediation of uranium ores, polymetallic ores and hard coal in the Czech Republic through its four branches. An important part of the decontamination is the remediation and reclamation of the mines after mining. The final stage of remediation of underground mining is the reclamation of the land with...
The Santo Amaro Plant - USAM - was a monazite chemical processing industrial unit that operated for 43 years in São Paulo, Brazil. The control of USAM by Indústrias Químicas Reunidas S.A. - Orquima occurred until 1956 when the company was nationalized and Indústrias Nucleares do Brasil S/A - INB became responsible for the liabilities of that industrial unit in 1988.
The chemical processing of...
