|
Konrad Mine
The pit Konrad (Schacht Konrad) is a former iron ore mine proposed as a deep geological repository for medium- and low level radioactive waste in the city Salzgitter in the Metropolitan region Hannover-Braunschweig-Göttingen-Wolfsburg in southeast Lower Saxony, Germany, located between Hildesheim and Braunschweig. It has two shafts: Konrad I and Konrad II. History The iron ore deposits have been mined since the start of the industrialization in the Salzgitter area. The first activities began in 1867. The shaft Konrad is the youngest of the former iron ore mines in this region. It has two shafts, of which Schacht Konrad I, is approximately 1232 meters and Schacht Konrad II is around 999 meters deep. The mining operation on Konrad lasted from 1961 to 1976. During this period, a total of 6.7 million tonnes of iron ore were retrieved. Authorization for radioactive waste disposal The shaft Konrad is an unusually dry iron ore mine. Since this is one of the criteria for a deep final rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salzgitter Schacht Konrad 20050522 860 Part
Salzgitter (; Eastphalian: ''Soltgitter'') is an independent city in southeast Lower Saxony, Germany, located between Hildesheim and Braunschweig. Together with Wolfsburg and Braunschweig, Salzgitter is one of the seven ''Oberzentren'' of Lower Saxony (roughly equivalent to a metropolitan area). With 101,079 inhabitants and (as of 31 December 2015), its area is the largest in Lower Saxony and one of the largest in Germany. Salzgitter originated as a conglomeration of several small towns and villages, and is today made up of 31 boroughs, which are relatively compact conurbations with wide stretches of open country between them. The main shopping street of the young city is in the borough of Lebenstedt, and the central business district is in the borough of Salzgitter-Bad. The city is connected to the Mittellandkanal and the Elbe Lateral Canal by a distributary. The nearest metropolises are Braunschweig, about to the northeast, and Hanover, about to the northwest. The population ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lüneburg
Lüneburg (officially the ''Hanseatic City of Lüneburg'', German: ''Hansestadt Lüneburg'', , Low German ''Lümborg'', Latin ''Luneburgum'' or ''Lunaburgum'', Old High German ''Luneburc'', Old Saxon ''Hliuni'', Polabian ''Glain''), also called Lunenburg ( ) in English, is a town in the German state of Lower Saxony. It is located about southeast of another Hanseatic city, Hamburg, and belongs to that city's wider metropolitan region. The capital of the district which bears its name, it is home to roughly 77,000 people. Lüneburg's urban area, which includes the surrounding communities of Adendorf, Bardowick, Barendorf and Reppenstedt, has a population of around 103,000. Lüneburg has been allowed to use the title " Hansestadt" (''Hanseatic Town'') in its name since 2007, in recognition of its membership in the former Hanseatic League. Lüneburg is also home to Leuphana University. History ImageSize = width:1050 height:100 PlotArea = width:1000 height:50 left:50 bottom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radioactive Waste Repositories
Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay ( ), beta decay ( ), and gamma decay ( ), all of which involve emitting one or more particles. The weak force is the mechanism that is responsible for beta decay, while the other two are governed by the electromagnetism and nuclear force. A fourth type of common decay is electron capture, in which an unstable nucleus captures an inner electron from one of the electron shells. The loss of that electron from the shell results in a cascade of electrons dropping down to that lower shell resulting in emission of discrete X-rays from the transitions. A common example is iodine-125 commonly used in medical settings. Radioactive decay is a stochastic (i.e. random) process ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radioactive Waste
Radioactive waste is a type of hazardous waste that contains radioactive material. Radioactive waste is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, rare-earth mining, and nuclear weapons reprocessing. The storage and disposal of radioactive waste is regulated by government agencies in order to protect human health and the environment. Radioactive waste is broadly classified into low-level waste (LLW), such as paper, rags, tools, clothing, which contain small amounts of mostly short-lived radioactivity, intermediate-level waste (ILW), which contains higher amounts of radioactivity and requires some shielding, and high-level waste (HLW), which is highly radioactive and hot due to decay heat, so requires cooling and shielding. In nuclear reprocessing plants about 96% of spent nuclear fuel is recycled back into uranium-based and mixed-oxide (MOX) fuels. The residual 4% is minor actinides and fission products the latter of w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schacht Asse II
The Asse II mine (Schacht Asse II) is a former salt mine used as a deep geological repository for radioactive waste in the Asse Mountains of Wolfenbüttel, Lower Saxony, Germany. History The Asse II mine was developed between 1906 and 1908 to a depth of . Initially extracting potash, the mine also produced rock salt from 1916 to 1964. Potash production ceased in 1925. Between 1965 and 1995, the state-owned Helmholtz Zentrum München used the mine on behalf of the Federal Ministry of Research to test the handling and storage of radioactive waste in a repository. Between 1967 and 1978 low-level and intermediate-level radioactive waste were emplaced in 13 chambers in the Asse II mine. Two chambers are located in the middle part and ten in the southern flank of the mine at depths from below surface. Between 1972 and 1977, exclusively medium-level radioactive waste was emplaced in a chamber on the level. Research was stopped in 1995; between 1995 and 2004 cavities were filled with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaft Mining
Shaft mining or shaft sinking is the action of excavating a mine shaft from the top down, where there is initially no access to the bottom. Shaft (civil engineering), Shallow shafts, typically sunk for civil engineering projects, differ greatly in execution method from deep shafts, typically sunk for mining projects. Shaft sinking is one of the most difficult of all mine development methods: restricted space, gravity, groundwater and specialized procedures make the task quite formidable. Shafts may be sunk by conventional drill and blast or mechanised means. Historically, mine shaft sinking has been among the most dangerous of all the mining occupations and the preserve of mining contractors called sinker (mining), sinkers. Today shaft sinking contractors are concentrated in Canada, Germany, China and South Africa. The modern shaft sinking industry is gradually shifting further towards greater mechanisation. Recent innovations in the form of full-face shaft boring (akin to a v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gorleben Salt Dome
The Gorleben salt dome is a proposed deep geological repository in a salt dome in Gorleben in the Lüchow-Dannenberg district in the far north-east of Lower Saxony for low-, medium- and high-level radioactive waste. Site selection At the end of 1973 the search began for a final salt dome storage. The plan was a repository for all types of radioactive waste in a salt dome. 24 salt domes were considered. The federal government asked the company KEWA (Kernbrennstoff-Wiederaufarbeitungs-Gesellschaft) to search for a location. On July 1, 1975 the KEWA proposed three sites in Lower Saxony for further investigation: the salt domes Lutterloh, Lichtenhorst and Wahn. The location Gorleben is not advantageous in this category. The investigation of the sites began with drilling holes. In November 1976 the Lower Saxony cabinet called for the Federal Government to examine the three sites, so they could designate a location. In February 1977 the Lower Saxony cabinet designated finally the G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morsleben Radioactive Waste Repository
The Morsleben Radioactive Waste Repository (German: Endlager für radioaktive Abfälle Morsleben-ERAM) is a deep geological repository for radioactive waste in the Bartensleben rock salt mine in Morsleben, Börde District, in the federal state of Saxony-Anhalt, Germany. History After closure of the salt mining activities, Bartensleben was designated as a repository for radioactive waste by the former government of East Germany. Today, the shaft is operated by the Deutsche Gesellschaft zum Bau und Betrieb von Endlagern für Abfallstoffe mbH (DBE) under supervision of the Bundesamt für Strahlenschutz. Potash The salt mining industry in this region is over a century old, beginning with the first potash mining shaft, "Marie", in 1897. The "Bartensleben" shaft started between 1910–1912 and is currently 525m deep. The mine levels in "Bartensleben" are interconnected with "Marie" at depths 326, 426, 466 and 506 m. The main mine structure is between 320 and 630m depth. Weapon produc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Ministry For Environment, Nature Conservation And Nuclear Safety
The Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (german: Bundesministerium für Umwelt, Naturschutz, nukleare Sicherheit und Verbraucherschutz, ), abbreviated BMUV, is a cabinet-level ministry of the Federal Republic of Germany. It has branches in Bonn and Berlin. The ministry was established on 6 June 1986 in response to the Chernobyl disaster. The then Federal Government wanted to combine environmental authority under a new minister in order to face new environmental challenges more effectively. Furthermore The Greens had been formed a few years prior in part as an anti-nuclear environmentalist party and had achieved federal representation in 1983 and Joschka Fischer had been appointed minister of the environment for Hesse the previous year, marking the first state level red-green coalition in Germany. Thus the CDU/CSU intended to project a message of taking the environment seriously in an era in which the Greens wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schacht Konrad
The pit Konrad (Schacht Konrad) is a former iron ore mine proposed as a deep geological repository for medium- and low level radioactive waste in the city Salzgitter in the Metropolitan region Hannover-Braunschweig-Göttingen-Wolfsburg in southeast Lower Saxony, Germany, located between Hildesheim and Braunschweig. It has two shafts: Konrad I and Konrad II. History The iron ore deposits have been mined since the start of the industrialization in the Salzgitter area. The first activities began in 1867. The shaft Konrad is the youngest of the former iron ore mines in this region. It has two shafts, of which Schacht Konrad I, is approximately 1232 meters and Schacht Konrad II is around 999 meters deep. The mining operation on Konrad lasted from 1961 to 1976. During this period, a total of 6.7 million tonnes of iron ore were retrieved. Authorization for radioactive waste disposal The shaft Konrad is an unusually dry iron ore mine. Since this is one of the criteria for a deep final rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Million
One million (1,000,000), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. The word is derived from the early Italian ''millione'' (''milione'' in modern Italian), from ''mille'', "thousand", plus the augmentative suffix ''-one''. It is commonly abbreviated in British English as m (not to be confused with the metric prefix "m", ''milli'', for ), M, MM ("thousand thousands", from Latin "Mille"; not to be confused with the Roman numeral = 2,000), mm (not to be confused with millimetre), or mn in financial contexts. In scientific notation, it is written as or 106. Physical quantities can also be expressed using the SI prefix mega (M), when dealing with SI units; for example, 1 megawatt (1 MW) equals 1,000,000 watts. The meaning of the word "million" is common to the short scale and long scale numbering systems, unlike the larger numbers, which have different names in the two systems. The million is sometimes used in the English ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Level Radioactive Waste
Medium may refer to: Science and technology Aviation *Medium bomber, a class of war plane * Tecma Medium, a French hang glider design Communication * Media (communication), tools used to store and deliver information or data * Medium of instruction, a language or other tool used to educate, train, or instruct Wave physics * Transmission medium, in physics and telecommunications, any material substance which can propagate waves or energy ** Active laser medium (also called gain medium or lasing medium), a quantum system that allows amplification of power (gain) of waves passing through (usually by stimulated emission) ** Optical medium, in physics, a material through with electromagnetic waves propagate * Excitable medium, a non-linear dynamic system which has the capacity to propagate a wave Other uses in science and technology * Data storage medium, a storage container in computing * Growth medium (or culture medium), in biotechnology, an object in which microorganisms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Federal Ministry For Environment, Nature Conservation And Nuclear Safety")
