JP6587301B1 - 被処理水中の放射性物質除去方法 - Google Patents
被処理水中の放射性物質除去方法 Download PDFInfo
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- JP6587301B1 JP6587301B1 JP2018228854A JP2018228854A JP6587301B1 JP 6587301 B1 JP6587301 B1 JP 6587301B1 JP 2018228854 A JP2018228854 A JP 2018228854A JP 2018228854 A JP2018228854 A JP 2018228854A JP 6587301 B1 JP6587301 B1 JP 6587301B1
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Abstract
Description
放射線遮蔽手段を備えた貯蔵施設を、一対の箱形型枠部材を向き合わせに配置し、一対の箱形型枠部材を斜めに交差するブレース部材で連結して型枠ユニットを形成し、複数の型枠ユニットを縦方向、横方向に連設して矩形容器とし、一対の箱形型枠部材間の空間に放射線遮蔽部材であるバリウムと生コンクリート改質剤を加えたコンクリートモルタルを充填して固化させ一体化し、内壁又は外壁を防水加工をして構築することで、組立て作業が容易で、コンクリートと一体化して放射線遮蔽性能の高い貯蔵施設を構築することが可能となる。
Claims (2)
- 放射性物質を含む被処理水を下部に沈殿物取出手段と撹拌手段を備えた撹拌槽に投入する工程と、
撹拌槽に木炭の微粉末を投入し撹拌する工程と、
撹拌槽に成分が、pH8.21、N(窒素)0.004%、P 2 0 6 (燐酸)0.118%、K 2 O(加里)0.308%、CaO(石灰)14.42%、CaO(可溶性石灰)13.06%、Mg0(苦土)11.47%,アルカリ分14.09%、Zn(亜鉛)475ppm、Cu(銅)167ppm、Fe(鉄)2.383%、T−Si02(ケイ酸)44.4%であるブライオゾーア(苔虫類の化石)の1mm以下の微粉末である無機系凝集剤を投入し、撹拌する工程と、
撹拌槽の下部に沈殿した沈殿物を沈殿物取出手段を介して取出す工程と、
取出した沈殿物を遠心分離機に投入し脱水する工程と、
脱水された沈殿物を、放射線遮蔽手段を備えた貯蔵施設に保管する工程と、
放射性物質濃度が低下した被処理水を公共の河川、海に排水する工程と、
を備えることを特徴とする被処理水中の放射性物質除去方法。 - 放射線遮蔽手段を備えた貯蔵施設を、一対の箱形型枠部材を向き合わせに配置し、一対の箱形型枠部材されるを斜めに交差するブレース部材で連結して型枠ユニットを形成し、複数の型枠ユニットを縦方向、横方向に連設して矩形容器とし、一対の箱形型枠部材間の空間に放射線遮蔽部材であるバリウムと生コンクリート改質剤を加えたコンクリートモルタルを充填して固化させ一体化し、内壁又は外壁を防水加工をして構築することを特徴
とする請求項1に記載の被処理水中の放射性物質除去方法。
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| JP6587301B1 true JP6587301B1 (ja) | 2019-10-09 |
| JP2020091214A JP2020091214A (ja) | 2020-06-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7628980B2 (ja) | 2022-04-28 | 2025-02-12 | 日立Geニュークリア・エナジー株式会社 | セメント固化装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04219103A (ja) * | 1990-12-18 | 1992-08-10 | Mitsubishi Heavy Ind Ltd | 貯槽内溶液中の特定物質吸着除去方法 |
| US5679256A (en) * | 1994-06-20 | 1997-10-21 | Rose; Jane Anne | In-situ groundwater clean-up and radionuclide disposal method |
| JP3013249B1 (ja) * | 1998-12-14 | 2000-02-28 | 株式会社クラスター | 凝集沈降剤 |
| JP3825986B2 (ja) * | 2001-04-02 | 2006-09-27 | 株式会社日立製作所 | 放射性洗濯廃液の処理方法及び装置 |
| JP2013088278A (ja) * | 2011-10-18 | 2013-05-13 | Noatech Corp | 放射能汚染廃水処理方法及び処理システム並びに移動式処理装置 |
| JP2014119443A (ja) * | 2012-12-19 | 2014-06-30 | Hanada Giken Kogyo Kk | 凝集沈降剤及び放射性物質を含む土壌の除染方法 |
| JP5832053B1 (ja) * | 2015-04-27 | 2015-12-16 | 株式会社フジモト | 耐震壁構築用型枠構造 |
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