JAEA-Testing-2011-007.pdf:46.74MB - 日本原子力研究開発機構

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Survey meter (1) Personal dosimeter JAEA-Testing 2011-007 JAEA-Testing 2011-007 Others First-aid kit (1) Set Stationary (1) Set Tools (1) Set Plastic sheet (1) Role To prevent decontamination of the pool side. Rubber tape (10) Role To tape plastic sheets in place Rope Rubber gloves Masks - 121 ~ 122 - - 121 〜 122 -
(4) Set a time schedule of the work JAEA-Testing 2011-007 JAEA-Testing 2011-007 Set a time schedule of the work using the form, “Record 5: Time schedule of the work” based on information obtained in the precedent steps such as dimension of swimming pool (volume of pool water), number of available materials and tools, available number of staffs and overall schedule. Approximate times that are assumed to require for each task are shown below. 【Briefing of the procedures】 1 hour Briefings are held before starting the procedures. It will include explanation to all of the program members to inform about the entire procedures and detailed explanation to each task group members about practical method and note to be aware of. 【Securing of a discharge flow path (removal of sediment)】 0.5 day Remove mud and fallen leaves accumulated in the discharge flow path. 【Radiation survey before work】 3 hours Sample swimming pool water at predetermined sampling points, and measure radioactivity concentration with a radioactivity detector. If the radioactivity detector is not available at the site, time required to transport the samples needs to be added to the above time. 【Discharge of supernatant】 1 day When the radioactivity concentration in the pool water is lower than the criteria for discharge, discharge the supernatant with engine pumps, while taking care of not to pumping up mud or fallen leaves accumulated on the bottom. 【Treatment in 1 ton plastic tank】 1.5 hour/one tank When the radioactivity concentration is higher than the criteria for the discharge, pump up the pool water together with mud and fallen leaves accumulated on the bottom. It takes 20 minutes to feed zeolite, flocculant and neutralizer. Leave at rest 30 minutes to allow sufficient precipitation. It takes 15 minute for discharging the supernatant and 15 minutes for recovery of the precipitate on the bottom of the plastic tank. - 123 - - 123 -
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本レポートは独立行政法
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JAEA-Testing 2011-007 Guide for Dec
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近藤伸次福島技術本部
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菅野良信がんばろう福島
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JAEA-Testing 2011-007 JAEA-Testing
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3.準備をします JAEA-Testing 2
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「記録-1 作業開始前のプ
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「記録-3 (作業開始前)作業
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「記録-5 作業スケジュー
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「記録-10 1トンポリタンク
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(2) Review the entire work JAEA-Tes
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6. References JAEA-Testing 2011-007
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国際単位系(SI) 国際単位系
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JAEA-Testing-2011-007.pdf:46.74MB - 日本原子力研究開発機構

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