{"id":1681,"date":"2025-01-16T06:01:22","date_gmt":"2025-01-16T03:01:22","guid":{"rendered":"https:\/\/bentonit.ru\/products\/bentonite-for-storage-conservation-decommissioning-and-disposal-of-radioactive-waste-raw\/bentonite-for-conservation-of-special-raw-facilities-creation-of-external-engineering-safety-barriers\/"},"modified":"2025-01-16T06:14:43","modified_gmt":"2025-01-16T03:14:43","slug":"bentonite-for-conservation-of-special-raw-facilities-creation-of-external-engineering-safety-barriers","status":"publish","type":"page","link":"https:\/\/bentonit.ru\/en\/products\/bentonite-for-storage-conservation-decommissioning-and-disposal-of-radioactive-waste-raw\/bentonite-for-conservation-of-special-raw-facilities-creation-of-external-engineering-safety-barriers\/","title":{"rendered":"Bentonite for conservation of special RAW facilities (creation of external engineering safety barriers)"},"content":{"rendered":"\n<p>The main objects for creation of external barriers are solid RAW storage facilities, soil burial sites, bunker-type facilities, slurry, tailing and water reservoirs, special industrial water bodies. An external barrier (impervious screens) is a structural element constructed outside of facilities and structures using bentonite-based solutions to protect groundwater from the ingress of contaminants through filtration and migration of radionuclides. <\/p>\n\n<p>At present this type of barrier is the most demanded. Below is the scheme of modelling of curtain fully eliminating the possible migration of radionuclides beyond the object. <\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1440\" height=\"630\" src=\"https:\/\/bentonit.ru\/wp-content\/uploads\/2024\/12\/radn-vzav.jpg\" alt=\"\" class=\"wp-image-1437\"\/><figcaption class=\"wp-element-caption\"><em>Radionuclide localisation using external curtains<\/em><\/figcaption><\/figure>\n\n<p>In 2018-23, a number of pilot works were carried out at the facilities of the State Corporation to select the injection composition and technology. Two options were considered: slurry wall technology and jet-grouting. For nuclear power facilities, the latter was chosen because it involves the least amount of soil removal during installation.  <\/p>\n\n<p>The principle of JET-technology is based on destruction of the natural soil structure by the energy of a high-speed jet of injection solution and mixing it with the solution injected under high pressure. In this case, a soil-bentonite pile (pillar) is formed in the soil mass from its surface to the water-retaining layer. The location of piles with intersection of their contours forms a waterproofing curtain (scheme below).  <\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a2922c3c7ff5&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a2922c3c7ff5\" class=\"wp-block-image size-full wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/bentonit.ru\/wp-content\/uploads\/2024\/12\/bent-inj-e_en.jpg\" alt=\"\" class=\"wp-image-1404\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\"><em>Installation of impervious curtain using jet-grouting technology<\/em><\/figcaption><\/figure>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The main objects for creation of external barriers are solid RAW storage facilities, soil burial sites, bunker-type facilities, slurry, tailing and water reservoirs, special industrial water bodies. An external barrier (impervious screens) is a structural element constructed outside of facilities and structures using bentonite-based solutions to protect groundwater from the ingress of contaminants through filtration [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1223,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1681","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bentonite for conservation of special RAW facilities (creation of external engineering safety barriers) - Bentonite Group of Companies<\/title>\n<meta name=\"description\" content=\"Site conservation, external barriers, groundwater protection, impervious screens, jet-grouting technology.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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