PROCEDURE FOR STOWING-AWAY LEAVINGS

Abstract: In short, a method to stow-away leavings, especially those which are dangerous for the environment. Prestressed concrete walls, of which the thickness can be adapted to the material that has to be stowed-away, combined with bitume prevent penetration of the dangerous material into the environment and can reduce radiation to a zero-level. Applications: Stowing-away of dangerous and/or radio-active leavings in laboratories, research centers, hospitals, power plants, chemical industries, etc.

Description: PROCΞDURS FOR STOWDIG-AWAY LEAVINGS. This invention concerns the procedure for stowing-away, in a given case al¬ so the cleaning-away and dumping, of light nuclear leavings, poisondumps and chemical disposals. 5) Following explanation refers to numbers which correspond with those as indicated in sketches 1 and 2 respectively figures 1 and 2. 1/1 concerns an isolationlayer, consisting of plastic material or bitume, t prevent that eventual contaminated water pollutes the environment. 1/2 con¬ cerns a heavy wall, armoured concrete bin; wallthickness and dimensions as 10) required for the submerging of the container 1/4 with the leavings and for the prevention of radioactive radiation. 1/3 concenrs a layer of water all around the container, serving as a waterlock. This water is also used for the measurement of eventual pollution caused by strain from-the contai¬ ner 1/4. 1/4 concerns the concrete part of the container, that will be fille 15) with leavings, serving at the same time as a frame for 1/5 and 1/6 resp. the hard and elastic bitume-layers and to cool them during storage. 1/4 al¬ so serves, in combination with 1/5 and 1/6, to assure a guaranteed storage. 1/5 concerns a layer of hard bitume, taking care of the holding in position of the material brought in. 1/6 concenrs a layer of elastic bitume, serving 20) as isolation for the closing. 1/7 -concenrs the closing-cover of the bin, also made out of concrete. 1/8 concenrs measuringpoints for measuring an e- ventual pollution of 1/3 (water). 1/9 concerns a layer of soil for covering the whole system. 1/10 concerns the manhole-cover of the container in which the leavings are dropped. 25) The bin mentioned under 1/2 can eventualy be built near power-plants etc If a number of these bins are placed together, one can, if the last bin is nearly filled up, lift the first one for definite carrying-away of the lea¬ vings and re-use it again or replace a new one. 1/1 and 1/2 can be built near poisondumps for the storage of contaminated 30) soil-layers. This soil could eventualy be cleaned in the bins. As poison dumps are temporarely, the bins also can be used for the dumping of house¬ hold-refusals. In the cases 1/3 might not be required. The container for the leavings, consisting of 1/4, 1/5 and 1/6 can be used to pack barrels with poison. 35) The final product can be used as a caisson for damming up poisondumps. Doing so one creates a new type of refusaldump, which cleans-away and ser¬ ves at the same time as a driving-way for the removal-collector-lorries. Complete bins can also be used as caissons in dyke- and roadbases and under parkinglots. 5 " ) The complete bins can be stowed-away in saltstratums, clay- and gravel- pits or in the sea. As caissons they can be used during floodcalamities. With, the system described above, mini-containers can be built, specialy suited for small quantities of nuclear and heavily poisoned leavings. 10) See sketch 2. The parts 2/4, 2/5 and 2/6 correspond with the parts 1/4, 1/5 and 1/6. 2/13 concerns a digged out old barrel which is in such a shape, that repack¬ ing is required. 2/12 concerns a new barrel. In between 2/12 and 2/13 one finds 2/5, consisting of hard bitume. As 2/12, 2/13 and 2/5 are united into 15) one package, a layer of plastic-material can be fitted. 2/A is the nuc¬ lear version. For 2/11 and 2/12 the normal procedure can be used. OMPI

Claims: C I AIMS It concerns a new packing-methode for chemisal and light nuclear leavings. The application of existing materials in behalf of that packing, namely prestressed concrete, 1/4, 1/2, 1/7 and bitume 1/5, 1/6, 1/1 is new in this because by the combined application of these materials one can speak of one 5) complete new packing, being a one-piece solid massif. Particularly new is the application of bitume with the purpose to repel wa¬ ter to the inside as well as to the outside. In consequence with this affec tion, oxidation and putrefaction and such like processes of the barrels in the compartment 6 of sketch 1 is impossible. Besides this the bitume remain 10) elastic sufficiently to absorb shocks in such a way that during moving or transport of the containers, the stowed-away barrels will not be damaged The hard bitume layer 1/5 reduces the eventual possible strain to a zero- level. Under the present conceptions, this is the best and ultimate guarantee that 15) can be offered in connection to the assimilation of chemical and nuclea leavings into the environment. Kew is also that the complete container 1/4 is submerged in the bin 1/2 and ean stay there for a certain time. The length of this period can be adapted to the nature of leavings in the container. 20) Light chemical leavings might stay in the bin only for a short time and agressive chemical and nucleair leavings for much longer time. For that rea son the measuringpoints 1/8 are placed in the waterseal 1/3 so that checks can be made if during the storage periode -s rain took place so that eventua actions can be taken. 25) This methode of packing and control allows to expose the massif units, filled with chemical leavings to the natural elements as rain, seawater and similar circumstances. In consequence of this, the units can be used as caissons, a.o. for the strengthening and building of dykes and roades, in the construction of foun 30) dations for buildings, damming up poisondumps and similar applications. The complete units can be stowed-away safely in saltstratums, clay-, gravel and sandpits and into the sea. The small containers "2", which are used in¬ stead of the steelbarrels, are suited for packing heavy nucleair leavings. The methode is identical to that described with sketch 1. The bitume-layers 35) 2/5, 2/6 and 2/11 prevent all kind of affection, so that no radiation can be set free. The concrete bin 1/2 is made of prestressed concrete and p tected by a bitume-layer 1/1. This prevents straining of humidity to the in¬ side as wel as to the outside, OMPI IPO so .that no leavings can penetrate into the environments in case, eventualy, some strain took place from the container 1/4. For extra safety the concrete cover 1/7 is placed to prevent that leavings, that eventualy might strain during the measuring period, will be absorbed 5) by the atmosphere. On top of this cover one can bring a topcoat of normal soil in such a way, that all regulations for the local neighbourhood can be met. - ξfaE OMPI WIPO

Inventors: SPLINTER BOB CORNELIS, SPLINTER, BOB, CORNELIS
Applicants: KAMPEN JOSEPH VAN, SPLINTER BOB CORNELIS, SPLINTER, BOB, CORNELIS, VAN KAMPEN, JOSEPH
Application year: 1982
Main classification: G21F9
IPC codes: G21F5, G21F9