{"id":26655,"date":"2016-04-12T00:34:17","date_gmt":"2016-04-12T00:34:17","guid":{"rendered":"https:\/\/www.institutodeengenharia.org.br\/?p=26655"},"modified":"2016-04-12T16:24:42","modified_gmt":"2016-04-12T16:24:42","slug":"governo-japones-pretende-construir-muralha-de-gelo-subterranea","status":"publish","type":"post","link":"https:\/\/www.institutodeengenharia.org.br\/site\/2016\/04\/12\/governo-japones-pretende-construir-muralha-de-gelo-subterranea\/","title":{"rendered":"Governo japon\u00eas pretende construir muralha de gelo subterr\u00e2nea"},"content":{"rendered":"<p>O governo japon\u00eas quer construir uma &#039;muralha de gelo&#039; subterr\u00e2nea. Parece enredo de filme sci-fi, mas \u00e9 verdade. O plano \u00e9 um dos \u00faltimos recursos para evitar que a \u00e1gua contaminada por res\u00edduos nucleares do acidente de Fukushima, que completaram cinco anos neste m\u00eas, chegue ao Oceano Pac\u00edfico. <\/p>\n<p>Esta estrat\u00e9gia j\u00e1 estava na mira do governo do Jap\u00e3o, mas ainda havia esperan\u00e7as de que pequenos rob\u00f4s enviados para reparar canos de combust\u00edvel tivessem sucesso na tarefa, o que resumiria o restante do trabalho a limpar a \u00e1gua j\u00e1 contaminada. Mas, em fevereiro, os rob\u00f4s n\u00e3o resistiram \u00e0 radia\u00e7\u00e3o e deixaram de funcionar. Com isso, os reatores e canos de combust\u00edvel precisam ser resfriados incessantemente, contaminando a \u00e1gua necess\u00e1ria nesta tarefa. <\/p>\n<p>Ent\u00e3o, para evitar que esta \u00e1gua contaminada saia das propriedades da Usina Nuclear de Fukushima, a ideia \u00e9 construir um pared\u00e3o de 1,5 quil\u00f4metros, cheio de canos resfriadores, que endurecer\u00e3o o solo e evitaram que a \u00e1gua corre rumo ao oceano. O plano deve custar R$ 1,12 bilh\u00f5es aos cofres p\u00fablicos japoneses. <\/p>\n<p>A preocupa\u00e7\u00e3o \u00e9 urgente, j\u00e1 que at\u00e9 o governo dos Estados Unidos j\u00e1 registrou tra\u00e7os de res\u00edduos nucleares nas \u00e1guas de sua costa oeste. Fazendeiros da regi\u00e3o de Fukushima receberam do governo japon\u00eas uma esp\u00e9cie de solo em poli\u00e9ster, para evitar que plantem diretamente no ch\u00e3o, que pode estar contaminado. <\/p>\n<p>Quando perguntado se o plano realmente dar\u00e1 certo, Toshihiro Imai, um dos respons\u00e1veis pelo plano de conting\u00eancia dos danos causados pelo terremoto e pelo tsunami que destru\u00edram um dos reatores da usina, disse que \u201co efeito da medida \u00e9 desconhecido, porque todos os nossos testes s\u00e3o baseados em simula\u00e7\u00f5es\u201d. <\/p>\n<p>Estrat\u00e9gias semelhantes s\u00e3o usadas para evitar que a \u00e1gua contamine t\u00faneis de metr\u00f4 e galerias de saneamento b\u00e1sico, mas nenhuma delas tem um tamanho sequer pr\u00f3ximo ao enorme pared\u00e3o que os japoneses querem construir. Al\u00e9m disso, esses canos resfriadores tem, em m\u00e9dia, vida \u00fatil de cinco anos. Logo, esse mais de um bilh\u00e3o de reais que ser\u00e1 gasto pelo Jap\u00e3o pode servir apenas como paliativo.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Iniciativa \u00e9 um dos \u00faltimos recursos para evitar que \u00e1gua contaminada pelo acidente nuclear de Fukushima chegue ao Oceano Pac\u00edfico<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,6],"tags":[],"class_list":{"0":"post-26655","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-meio-ambiente","7":"category-noticias"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Governo japon\u00eas pretende construir muralha de gelo subterr\u00e2nea - Instituto de Engenharia<\/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:\/\/www.institutodeengenharia.org.br\/site\/2016\/04\/12\/governo-japones-pretende-construir-muralha-de-gelo-subterranea\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Governo japon\u00eas pretende construir muralha de gelo subterr\u00e2nea - 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