为什么盐穹顶适合核废料的最终处置吗?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 18 - t03:35:18z //www.hoelymoley.com/feeds/question/24011 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/24011 13 为什么盐穹顶适合核废料的最终处置吗? Hexenbrei //www.hoelymoley.com/users/26985 2022 - 07 - 14 - t08:03:18z 2022 - 07 - 17 - t10:25:54z < p >我继续阅读,最后为核废料存储站点正在建设盐穹顶。在德国打点项目中,盐穹顶< a href = " https://www.base.bund.de/SharedDocs/Pressemitteilungen/BASE/EN/2021/0917_gorleben.html " rel = " nofollow noreferrer " >决心是不合适的< / >经过长时间的调查。< / p > < p >不管打点情况下,为什么盐穹顶首选? < / p > //www.hoelymoley.com/questions/24011/-/24012 # 24012 11 答案由维斯为什么盐穹顶适合核废料的最终处置吗? 维斯 //www.hoelymoley.com/users/26841 2022 - 07 - 14 - t08:06:44z 2022 - 07 - 14 - t08:16:36z < p >嗨盐穹顶在几百万年的时间形成的。这些盐穹顶通常也很好密封水的保护层(无水石膏)(盐溶于水,如果盐丘没有干就不存在)。这些干燥条件,除了现有基础设施通过盐矿业、盐穹顶的原因是用作核库。< / p > < p >看看:< a href = " https://www.sciencedaily.com/releases/2020/04/200429075857.htm " rel = " noreferrer " > https://www.sciencedaily.com/releases/2020/04/200429075857.htm < / > < / p > < p > < a href = " https://i.stack.imgur.com/2yxE4.png " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/2yxE4.png " alt = "在这里输入图像描述" / > < / > < / p > < p >来源:< a href = " https://antisocialnetwork-2labz.blogspot.com/2017/04/rock-salt-for-dummies-freelance-files_15.html " rel = " noreferrer " > https://antisocialnetwork-2labz.blogspot.com/2017/04/rock-salt-for-dummies-freelance-files_15.html < / > < / p > //www.hoelymoley.com/questions/24011/-/24016 # 24016 22 由弗雷德回答为什么盐穹顶适合核废料的最终处置吗? 弗雷德 //www.hoelymoley.com/users/2470 2022 - 07 - 14 - t13:32:35z 2022 - 07 - 14 - t16:44:54z < p >使用盐穹顶储存核废料被认为是在美国和德国。这两个国家有可能合适的盐穹顶。< / p > < p > < a href = " https://www.ncbi.nlm.nih.gov/books/NBK208696/ " rel = " noreferrer " > <强>因素有利于盐穹顶< /强> < / >(引用)的教派12:< / p > < ul > <李>盐在美国已经开采的穹顶。留下的空洞提供减少核废料储存的成本。生产空洞吸收企业的成本开采盐的沉积。核废料的处理实体花更少的钱少挖洞。李李< / > < >盐沉积地质稳定,已经存在了数百万年。李李< / > < >更多在美国,矿床的地质背景也是安全的。盐穹顶在区域地震活动性较低。李李< / > < >在层状盐沉积物上覆地层石灰石和白云石等提供truss-like支持表土。屋顶坍塌的可能性导致放射性物质的释放存储在这些条件下出现很小但值得验证。李李< / > < >盐是一种良好的热导体,将核废料的热量消散。 I would be more comfortable with this reason if the containers of nuclear waste were placed directly into specially sized holes within the salt domes, where the containers are in maximum direct contact with the salt. If the containers of nuclear waste are simply placed in within the air space of the underground chamber the waste must first heat the air which then heats the walls of the salt chamber. The dissipation of heat takes longer.
  • Salt domes are only secure if they are mined by mechanical means: drilling and blasting or grinding. Salt domes mined by aqueous methods - dissolving the salt with water and removing the salt as brine produces underground chambers with no internal support, such as pillars or human installed rock or cable bolts which reinforce the walls and ceiling of underground chambers. Such chambers would be unsuitable and could be prone to collapse.
  • Issues with using salt domes to store nuclear waste:

    • Salt is generally regarded as being self healing. Any small cracks that may develop within the salt deposit will close. This applies to small cracks, but may not apply to very large cracks.

    • Salt domes are generally considered to inhibit the flow of fluids through them. However, under conditions of high temperature and pressure, as exists deep underground, salt can become more porous allowing more fluids to pass through it. This can be problematic if in flowing water was to pick up radioactive material and start spreading it around the region of the salt dome.

    • The nature of the nuclear waste to be stored needs to be considered. Salt domes would be better at storing solid waste. Some waste is liquid which can more easily contaminate storage area via leaks and spills. Such waste would need to be thickened so it contained 35 percent solids.

    • If high level nuclear waste is to be stored, the amount of heat generated would be 1 - 3 Btu/h per US gallon (278.7 - 836.1 J/L). An acre-foot (1233.48 m3) of such waste would produce 1 MBtu per hour (1055 MJ per hour). The equivalent of burning 700 lb (317.5 kg) of coal.

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