{"id":4072,"date":"2021-07-05T17:02:33","date_gmt":"2021-07-05T15:02:33","guid":{"rendered":"https:\/\/tcnarbonne.org\/?p=4072"},"modified":"2021-09-14T22:08:06","modified_gmt":"2021-09-14T20:08:06","slug":"le-14-6-21-lasn-a-communique-sur-son-site","status":"publish","type":"post","link":"https:\/\/tcnarbonne.org\/index.php\/le-14-6-21-lasn-a-communique-sur-son-site\/05\/07\/2021\/","title":{"rendered":"Le 14\/6\/21, l\u2019ASN a communiqu\u00e9 sur son site"},"content":{"rendered":"\n<p><strong>Le 7 juin 2021, une fuite de poudre d\u2019uranium s\u2019est produite dans le hall de d\u00e9potage d\u2019une citerne d\u2019uranium naturel, dans les installations de \u00ab&nbsp;conversion&nbsp;\u00bb d\u2019Orano \u00e0 Pierrelatte<\/strong>.<\/p>\n<p>Les citernes de transport utilis\u00e9es entre les sites Orano de Malv\u00e9si et de Pierrelatte sont dot\u00e9es de bouchons d\u2019\u00e9vent, qui sont ferm\u00e9s \u00e0 Malv\u00e9si avant exp\u00e9dition. Au titre des proc\u00e9dures li\u00e9es au transport des substances radioactives, un contr\u00f4le des citernes est effectu\u00e9 avant l\u2019exp\u00e9dition. \u00e0 r\u00e9ception, un autre contr\u00f4le est men\u00e9 sur ces citernes sur le site de Pierrelatte avant les op\u00e9rations de d\u00e9potage, qui sont effectu\u00e9es dans un hall confin\u00e9.<\/p>\n<p>Le 7 juin, les \u00e9quipes de Pierrelatte ne se sont pas aper\u00e7ues, lors des contr\u00f4les, que la chainette retenant le bouchon de l\u2019\u00e9vent d\u2019une citerne contenant de l\u2019uranium naturel sous forme solide s\u2019\u00e9tait partiellement ins\u00e9r\u00e9e, lors de sa fermeture \u00e0 Malv\u00e9si, entre le bord inf\u00e9rieur du bouchon et le bord de l\u2019ouverture, provoquant une in\u00e9tanch\u00e9it\u00e9. Lors de la mont\u00e9e en pression de la citerne pour son d\u00e9potage, une dispersion de poudre s\u2019est produite, ce qui a entra\u00een\u00e9 le d\u00e9clenchement de l\u2019alarme de la balise de surveillance atmosph\u00e9rique du hall. Les \u00e9quipes n\u2019ont cependant pas imm\u00e9diatement suspendu le d\u00e9potage car cette balise avait provoqu\u00e9 des alarmes intempestives les fois pr\u00e9c\u00e9dentes. Une fois la dispersion de poudre identifi\u00e9e, les op\u00e9rations ont \u00e9t\u00e9 suspendues, la citerne a \u00e9t\u00e9 mise dans une configuration sure et des op\u00e9rations d\u2019assainissement du hall et de la citerne ont \u00e9t\u00e9 engag\u00e9es.<\/p>\n<p>Cet \u00e9v\u00e9nement n\u2019a pas eu de cons\u00e9quence sur les installations, les personnes et l\u2019environnement. <strong>Toutefois, la gestion de l\u2019\u00e9v\u00e9nement sur le site a connu quelques \u00e9carts ou retards, traduisant des d\u00e9fauts de culture de s\u00fbret\u00e9<\/strong>. Sur proposition de l\u2019exploitant, cet \u00e9v\u00e9nement a donc \u00e9t\u00e9 class\u00e9 au&nbsp;<strong>niveau 1<\/strong>&nbsp;de l\u2019\u00e9chelle <a href=\"https:\/\/www.asn.fr\/Lexique\/I\/INES\"><strong>INES<\/strong><\/a>.<\/p>\n<p>Ce communiqu\u00e9 qui a l\u2018avantage de rendre public (si on va quotidiennement sur le site de l\u2019ASN) un incident qui souligne l\u2019insuffisance de la suret\u00e9 de la gestion d\u2019ORANO dans son activit\u00e9 dans le cycle du combustible, comporte aussi quelques insuffisances&nbsp;: il n\u2019est rien dit du contr\u00f4le lors du chargement des citernes ni sur l\u2019\u00e9tanch\u00e9it\u00e9 du syst\u00e8me de fermeture; quid de la contamination possible des ouvriers&nbsp;? Plus encore, il n\u2019est pas soulign\u00e9 comment un comportement humain, par insuffisance de conscience du risque (on nous rebat les oreilles qu\u2019il est nul) peut entrainer des catastrophes comme l\u2019accident WIPP aux US&nbsp;: en effet l\u2019histoire de l\u2019alarme non prise en compte est \u00e9difiante \u00ab&nbsp;Bah, elle sonne tout le temps&nbsp;!&nbsp;\u00bb mais parfois c\u2019est peut-\u00eatre la bonne.<\/p>\n<p>Cet incident souligne que la probabilit\u00e9 du risque est bien pr\u00e9sente \u00e0 Malvesi, et nous savons que dans le cas du nucl\u00e9aire le danger est bien pr\u00e9sent \u00e0 plus ou moins long terme. Enfin rappelons que l\u2019uranium bien que \u00ab&nbsp;naturel&nbsp;\u00bb n\u2019en est pas moins radioactif et chimiquement toxique.<\/p>\n<p><strong>Pour TCNA.<\/strong><\/p>\n<p><strong>Dr Mariette Gerber<br>Chercheur Honoraire INSERM<br>Expert ANSES<\/strong><\/p>\n<p><strong>Membre de TCNA<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le 7 juin 2021, une fuite de poudre d\u2019uranium s\u2019est produite dans le hall de d\u00e9potage d\u2019une citerne d\u2019uranium naturel, dans les installations de \u00ab&nbsp;conversion&nbsp;\u00bb d\u2019Orano \u00e0 Pierrelatte. Les citernes de transport utilis\u00e9es entre&#8230;<\/p>\n","protected":false},"author":1,"featured_media":4073,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[5,78,129,398,494,735,734,834,6,977,738,613,729,4,556,7],"tags":[641,975,980,979,981,382,982,978,59,11],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le 14\/6\/21, l\u2019ASN a communiqu\u00e9 sur son site - TCNA NARBONNE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tcnarbonne.org\/index.php\/le-14-6-21-lasn-a-communique-sur-son-site\/05\/07\/2021\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le 14\/6\/21, l\u2019ASN a communiqu\u00e9 sur son site - TCNA NARBONNE\" \/>\n<meta property=\"og:description\" content=\"Le 7 juin 2021, une fuite de poudre d\u2019uranium s\u2019est produite dans le hall de d\u00e9potage d\u2019une citerne d\u2019uranium naturel, dans les installations de \u00ab&nbsp;conversion&nbsp;\u00bb d\u2019Orano \u00e0 Pierrelatte. 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