JP2021043021A - 土壌の処理方法 - Google Patents
土壌の処理方法 Download PDFInfo
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- JP2021043021A JP2021043021A JP2019164120A JP2019164120A JP2021043021A JP 2021043021 A JP2021043021 A JP 2021043021A JP 2019164120 A JP2019164120 A JP 2019164120A JP 2019164120 A JP2019164120 A JP 2019164120A JP 2021043021 A JP2021043021 A JP 2021043021A
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- 239000002689 soil Substances 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000000843 powder Substances 0.000 claims abstract description 65
- 229910052792 caesium Inorganic materials 0.000 claims abstract description 52
- 230000002285 radioactive effect Effects 0.000 claims abstract description 47
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 40
- 238000003756 stirring Methods 0.000 claims abstract description 32
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000004094 surface-active agent Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 8
- 239000004575 stone Substances 0.000 claims description 33
- 230000000717 retained effect Effects 0.000 claims description 9
- 229910001415 sodium ion Inorganic materials 0.000 claims description 9
- 238000005342 ion exchange Methods 0.000 claims description 8
- 229910001414 potassium ion Inorganic materials 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 4
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 claims description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 2
- 239000002609 medium Substances 0.000 abstract description 41
- 238000001914 filtration Methods 0.000 abstract description 15
- 239000012736 aqueous medium Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010438 granite Substances 0.000 abstract 3
- -1 and in particular Chemical compound 0.000 description 14
- 239000000941 radioactive substance Substances 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- 239000004927 clay Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 235000020637 scallop Nutrition 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 4
- 241000237509 Patinopecten sp. Species 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 229910001424 calcium ion Inorganic materials 0.000 description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- TVFDJXOCXUVLDH-RNFDNDRNSA-N cesium-137 Chemical compound [137Cs] TVFDJXOCXUVLDH-RNFDNDRNSA-N 0.000 description 4
- 239000002734 clay mineral Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000002736 nonionic surfactant Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000003945 anionic surfactant Substances 0.000 description 3
- TVFDJXOCXUVLDH-OUBTZVSYSA-N cesium-134 Chemical compound [134Cs] TVFDJXOCXUVLDH-OUBTZVSYSA-N 0.000 description 3
- 239000013522 chelant Substances 0.000 description 3
- 239000013068 control sample Substances 0.000 description 3
- 239000012857 radioactive material Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241000237519 Bivalvia Species 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000020639 clam Nutrition 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 235000015170 shellfish Nutrition 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 241000237544 Mactridae Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 241000237502 Ostreidae Species 0.000 description 1
- 241000237503 Pectinidae Species 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 241000607272 Vibrio parahaemolyticus Species 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- NCMHKCKGHRPLCM-UHFFFAOYSA-N caesium(1+) Chemical compound [Cs+] NCMHKCKGHRPLCM-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000000084 gamma-ray spectrum Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 235000020636 oyster Nutrition 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 229910052903 pyrophyllite Inorganic materials 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
「平均粒子径が5μm〜10μmの焼成貝殻粉末、麦飯石の粉末、界面活性剤、クエン酸、及び、ナトリウム塩を含有する処理剤を使用し、
該処理剤が水に添加された処理用水媒体と、放射性セシウムで汚染された土壌とを、常温下で撹拌する撹拌工程と、
該撹拌工程の後で、前記土壌から除去された放射性セシウムを担持している前記麦飯石の粉末及び前記焼成貝殻粉末が分散している前記処理用水媒体を、前記土壌と分離する分離工程と、
該分離工程で分離された前記処理用水媒体を濾過し、放射性セシウムを担持している前記麦飯石の粉末及び前記焼成貝殻粉末を濾過材に捕集させる濾過工程と、
をこの順に行う」ものである。
「前記撹拌工程では、前記麦飯石のカリウムイオンと前記土壌に保持されている放射性セシウムとの間でイオン交換させると共に、前記処理用水媒体中のナトリウムイオンと前記土壌に保持されている放射性セシウムとの間でイオン交換させる」ものとすることができる。これは、前述したイオン交換を、発明の構成として規定したものである。
「前記処理用水媒体のpHは9.0〜10.5に調整される」ものとすることができる。
Claims (3)
- 平均粒子径が5μm〜10μmの焼成貝殻粉末、麦飯石の粉末、界面活性剤、クエン酸、及び、ナトリウム塩を含有する処理剤を使用し、
該処理剤が水に添加された処理用水媒体と、放射性セシウムで汚染された土壌とを、常温下で撹拌する撹拌工程と、
該撹拌工程の後で、前記土壌から除去された放射性セシウムを担持している前記麦飯石の粉末及び前記焼成貝殻粉末が分散している前記処理用水媒体を、前記土壌と分離する分離工程と、
該分離工程で分離された前記処理用水媒体を濾過し、放射性セシウムを担持している前記麦飯石の粉末及び前記焼成貝殻粉末を濾過材に捕集させる濾過工程と、をこの順に行う
ことを特徴する土壌の処理方法。 - 前記撹拌工程では、前記麦飯石のカリウムイオンと前記土壌に保持されている放射性セシウムとの間でイオン交換させると共に、前記処理用水媒体中のナトリウムイオンと前記土壌に保持されている放射性セシウムとの間でイオン交換させる
ことを特徴する請求項1に記載の土壌の処理方法。 - 前記処理用水媒体のpHは9.0〜10.5に調整される
ことを特徴する請求項1または請求項2に記載の土壌の処理方法。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4501661A (en) * | 1984-04-03 | 1985-02-26 | Masafusa Karasawa | Method and apparatus for purification and activation of water |
JPS60110261A (ja) * | 1983-11-18 | 1985-06-15 | Mizushima Shokuhin Kk | 納豆の製造方法および装置 |
JP2013250158A (ja) * | 2012-05-31 | 2013-12-12 | Heisei Syouji Co Ltd | 放射能汚染を無害化する浄化健康水の製造法及び製造装置 |
JP2014032060A (ja) * | 2012-08-02 | 2014-02-20 | Nicchu Tohoku Bussan Kk | 除染方法 |
JP2015036406A (ja) * | 2013-08-14 | 2015-02-23 | 株式会社ネオス | 放射能汚染土壌および汚染シルト洗浄剤およびこれを用いた洗浄方法 |
JP3198799U (ja) * | 2015-05-12 | 2015-07-23 | 日本富升環保開発 有限会社 | 汚染土壌処理システム |
-
2019
- 2019-09-10 JP JP2019164120A patent/JP7302863B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60110261A (ja) * | 1983-11-18 | 1985-06-15 | Mizushima Shokuhin Kk | 納豆の製造方法および装置 |
US4501661A (en) * | 1984-04-03 | 1985-02-26 | Masafusa Karasawa | Method and apparatus for purification and activation of water |
JP2013250158A (ja) * | 2012-05-31 | 2013-12-12 | Heisei Syouji Co Ltd | 放射能汚染を無害化する浄化健康水の製造法及び製造装置 |
JP2014032060A (ja) * | 2012-08-02 | 2014-02-20 | Nicchu Tohoku Bussan Kk | 除染方法 |
JP2015036406A (ja) * | 2013-08-14 | 2015-02-23 | 株式会社ネオス | 放射能汚染土壌および汚染シルト洗浄剤およびこれを用いた洗浄方法 |
JP3198799U (ja) * | 2015-05-12 | 2015-07-23 | 日本富升環保開発 有限会社 | 汚染土壌処理システム |
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