Established | 1982 (Partially operational) [1] [2] |
---|---|
Research type | Basic nuclear science |
Field of research | Radiochemistry |
Location | Inshas, Egypt [3] [4] |
Affiliations | Nuclear Research Center [5] |
Operating agency | Egyptian Atomic Energy Authority |
The Hydrometallurgy Pilot Plant (HPP) is a hot cell laboratory complex,[ citation needed ] dedicated to perform bench-scale radiochemistry experiments including the separation of plutonium [6] and uranium from the spent fuel rods of the ETRR-1 research reactor and was established in 1982. [1] [2] The HPP is owned and operated by the Egyptian Atomic Energy Authority (AEA) [1] at the Nuclear Research Center in Inshas, [5] northeast of Cairo. [7]
At the late of 1970s, Egypt was motivated to build eight nuclear power plants and to develop experience at the back end of a nuclear fuel cycle and was concluded several contracts with an unnamed foreign company to build the Hydrometallurgy Pilot Plant (HPP). [1] [2]
HPP was originally designed as a nuclear reprocessing facility, [2] [8] and in 1982, the second laboratory became operational. [1]
The HPP consists of three laboratories, the first laboratory consists of three hot cells (modules 1-3) [1] with the first module, is shielded alpha particle cell dedicated for mechanical shearing of research reactor fuel, it was unfinished due to the inability to secure the necessary export licence for the shearing equipment from the foreign vendor. The second module, is dissolver and mixer-settlers for first stage fission product separation. The third module, was designed for waste vitrification with no equipment had been installed. [2]
The second laboratory contains two modules, module 4, whish is a lead shielded glove box for second stage fission product separation using mixer settlers, while module 5, is an unshielded glove box for the separation of plutonium from uranium. [1] [2]
The third laboratory consists of two connected glove box lines suitable for plutonium chemistry but which contain no equipment. [2]
HPP possess a minor plutonium processing capacity and unable to reprocess and extract weapons-grade plutonium from the spent fuel of the research reactors due to the inability to complete the facility, [1] [9] however, Egypt decided to use one cell of the HPP within the framework of a project for the management of unused and orphan radioactive sealed sources, [2] which provides Egypt with the research capabilities on the back-end of nuclear fuel cycle. [1]
In early 2001, the International Atomic Energy Agency (IAEA) detected particles of actinides and fission products near the HPP facility, which shed light on the existence of the HPP. [1]
In November 2004 and January 2005, Egypt declared that, in 1987, it had carried out acceptance tests in the HPP using unirradiated uranyl nitrate in chemical reagents purchased from the local market while the uranyl nitrate had been mixed with a solution obtained from the dissolution of domestically produced scrap UO2 pellets (with 1.9 kg of uranium compounds). Egypt rationalized that it did not inform the IAEA about the facility, materials nor their use in the tests as the HPP never completed and it was designed for bench scale radiochemistry experiments, while Egypt should have declared the HPP to the Agency as early as possible prior to the introduction of nuclear material into the facility, according to the Safeguards Agreement which came into force in 1982. [2] Therefore, between 2004 and 2006, Egypt had submitted design information for the HPP and had provide inventory change reports (ICRs) with respect to the acceptance tests. [5]
In 2009, The IAEA's Safeguards Implementation Report (SIR) for 2008, concludes that earlier issues of undeclared nuclear activities and material reported to the Board of Governors in February 2005 are no longer outstanding. [5]
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Nuclear proliferation is the spread of nuclear weapons, fissionable material, and weapons-applicable nuclear technology and information to nations not recognized as "Nuclear Weapon States" by the Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT. Proliferation has been opposed by many nations with and without nuclear weapons, as governments fear that more countries with nuclear weapons will increase the possibility of nuclear warfare, de-stabilize international or regional relations, or infringe upon the national sovereignty of nation states.
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 and uranium-235. Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite.
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The integral fast reactor is a design for a nuclear reactor using fast neutrons and no neutron moderator. IFR would breed more fuel and is distinguished by a nuclear fuel cycle that uses reprocessing via electrorefining at the reactor site.
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Aqueous homogeneous reactors (AHR) are a type of nuclear reactor in which soluble nuclear salts are dissolved in water. The fuel is mixed with the coolant and the moderator, thus the name "homogeneous" The water can be either heavy water or ordinary (light) water, both of which need to be very pure.
The thorium fuel cycle is a nuclear fuel cycle that uses an isotope of thorium, 232
Th
, as the fertile material. In the reactor, 232
Th
is transmuted into the fissile artificial uranium isotope 233
U
which is the nuclear fuel. Unlike natural uranium, natural thorium contains only trace amounts of fissile material, which are insufficient to initiate a nuclear chain reaction. Additional fissile material or another neutron source is necessary to initiate the fuel cycle. In a thorium-fuelled reactor, 232
Th
absorbs neutrons to produce 233
U
. This parallels the process in uranium breeder reactors whereby fertile 238
U
absorbs neutrons to form fissile 239
Pu
. Depending on the design of the reactor and fuel cycle, the generated 233
U
either fissions in situ or is chemically separated from the used nuclear fuel and formed into new nuclear fuel.
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