logo
* 搜尋
* 核能資訊中心
* 中心簡介
* 相關資訊
* 瀏覽人數
今天: 95
昨天: 328
本月: 2285
總計: 556138
國際核能現況 : Decommissioning progress for unique Canadian reactor
發表人 nicenter 於 2018/1/10 14:28:07 (148 人讀取)

Canadian federal and provincial authorities have completed their technical assessment of Canadian Nuclear Laboratories' (CNL's) draft environmental impact statement (EIS) for the proposed in-situ decommissioning of Whiteshell Reactor 1 (WR-1).





The proposal would involve filling the below-grade portions of the WNR-1 reactor, shown in this diagram, with a special grout (Image: CNL)

The research reactor, which reached a maximum of 60 MWt, attained first criticality in 1962 at the Whiteshell Laboratories site in Pinawa, Manitoba. The unique reactor had vertical fuel channels, and was moderated by heavy water but cooled by an organic liquid. It was used until 1972 as a test reactor for a proposed organic-cooled Candu power reactor, and subsequently for irradiation, experimentation and heating the Whiteshell site until its closure in 1985.


At the time the reactor was shut down, deferred decommissioning was the preferred strategy for management of the main reactor building. The reactor was therefore defuelled and has been maintained in a state of "storage with surveillance", according to CNL.


CNL is now proposing to decommission WR-1 using an in-situ technique, an approach which it says will provide a safe, secure and effective disposal solution for the existing contaminated building, much of which is below ground level, while minimising risks to the health, safety and security of the public, workers and the environment. It is proposing a technique which will involve pouring a specially engineered grout into the reactor to lock contaminants in place. A protective cover at the surface which will channel water away from the site and protect it from the elements.


The federal environmental assessment of the proposed decommissioning project, which is required under Canadian environmental law, began in May 2016. The draft EIS was open to public comments from 6 October until 20 December 2017.


The Canadian Nuclear Safety Commission (CNSC), the responsible authority for the environmental assessment process, said it has identified a number of areas where additional information will need to be included in the final EIS and other technical supporting documentation. A consolidated table of over 200 information requests and comments from the CNSC and other federal and provincial authorities participating in the review - Environment and Climate Change Canada, Health Canada, Natural Resources Canada and Manitoba Sustainable Development - has now been submitted back to CNL.


CNL must address all comments received before submitting its final EIS to the CNSC, after which the regulator will then determine if the information is complete. The final EIS is expected to be submitted in April. The CNSC's assessment of the final EIS and the EA report will made available to the public for 60 days prior to a public hearing which is expected to take place in October.


Researched and written
by World Nuclear News



source:http://www.world-nuclear-news.org/WR-Decommissioning-progress-for-unique-Canadian-reactor-0801187.html



其他新聞
2018/12/7 10:41:45 - Nuclear important to sustainable energy mix, says UNECE report
2018/12/7 10:40:07 - First Taiwanese reactor to enter decommissioning
2018/12/7 10:31:03 - Russia completes testing of modified VVER-440 fuel
2018/12/7 10:30:00 - 核一廠1號機於107年12月6日進入除役期間,原能會將嚴格監督台電公司落實除役計畫及安全要求
2018/12/7 10:29:55 - Russia and Rwanda to cooperate in nuclear power
2018/12/7 10:20:00 - 核一廠1號機執照屆滿依法停機 待取得除役許可正式啟動除役
2018/12/7 10:19:17 - 回應新北市府指核一乾貯未按圖施工 台電:配合地形調整減少開挖 盼與市府再溝通
2018/12/5 9:56:19 - Argentina, Russia expand nuclear energy cooperation
2018/12/5 9:53:07 - Lawsuit launched as Bellefonte sale falters
2018/12/5 9:51:20 - CNNC launches R&D centre for fuels and materials
2018/12/5 9:48:24 - Nuclear must remain in South African mix, committee finds
2018/12/5 9:44:27 - UK's Bradwell site enters care and maintenance
2018/12/5 9:32:07 - 放射性物質或可發生游離輻射設備銷售服務業者名單
2018/12/3 10:51:18 - US companies collaborate on TRISO fuel facility
2018/12/3 10:49:38 - Amano calls for nuclear technology to go 'mainstream'
2018/12/3 10:48:11 - Russia starts cobalt-60 production at Kursk plant
2018/12/3 10:42:32 - Saskatchewan files suit over mine remediation costs
2018/12/3 9:25:36 - 原能會於今(2)日18時10分同意台電公司核二廠1號機併聯申請
2018/11/30 9:38:48 - New delay in start-up of Finnish EPR
2018/11/30 9:36:30 - Europe aims to be carbon neutral by 2050

 線上期刊目錄

 友善連結

單位類

行政院原子能委員會
放射性物料管理局
核能研究所
國立清華大學工程與系統科學系
國立清華大學生醫工程與環境科學系
中華民國核能學會
財團法人核能科技協進會

新聞類


30013 新竹市光復路二段101號 創新育成中心三樓309室 電話:(03)571-1808 傳真:(03)572-5461 Email: nicenter@nicenter.org.tw