[en] The decommissioning and dismantling of the german pilot plant for reprocessing of nuclear fuel (WAK) is performed in six steps with the task of recultivation the site at the Research Centre in Karlsruhe to became a open-quotes green meadowclose quotes. Since 70 m³ of high active waste concentrate (HAWC) are still stored on the site presently all dismantling measures arc concentrated on the former reprocessing building

[en] After a short description of the WAK plant and its reprocessing and intervention activities, types and sources of WAK wastes are described. Roughly half of the waste volume is generated during reprocessing, the other half during intervention periods. Most of the waste is transported to KfK for conditioning. Only waste from the head end cell is cementated on the spot. HLLW is stored in stainless steel tanks. Some results from analyzing this stuff are given. The corrosion behavior is acceptable for medium term storage. (orig.)

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[en] Short communication

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[en] The experience gained to date, during the testing of Pu-monitors in the reprocessing plant at Karlruhe (WAK), is described in this paper. These monitors are a part of the instrumentation for Pu-control in the planned German nuclear fuel cycle centre (NEZ). It is a basic principle for the planning engineer to design a process only on instruments which have been shown to work successfully in actual plant operations, either in the WAK plant, or in other comparable industrial plants. This design requirement necessitates the development of such devices, taking into account both the designers specification and the special conditions and circumstances of the test facility, e.g. the WAK plant. In the WAK plant the following monitors are tested which are designed for the NEZ: fuel element monitor, hull monitor, neutron monitor, alpha-monitor, off-gas monitor. For each of these monitors the method employed and actual stage of development, are described shortly and, from the operational experience gained up to now, conclusions are drawn for the future running operation of the NEZ

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[en] After nearly twenty years of operation WAK-GmbH, the company operating WAK, discontinued operation of the plant. Preparatory planning to decommissioning was performed the results of which will be reported here. Based on experience a mixed concept of manual and remote disassembly was chosen for the dismantling operations. This is considered to constitute the optimized solution in terms of economy and taking into consideration the stipulations of the Atomic Energy Act. Detailed documents have already been elaborated for this task. (author)