JPS63168599A - Solidifying processing method of radioactive waste - Google Patents
Solidifying processing method of radioactive wasteInfo
- Publication number
- JPS63168599A JPS63168599A JP31185586A JP31185586A JPS63168599A JP S63168599 A JPS63168599 A JP S63168599A JP 31185586 A JP31185586 A JP 31185586A JP 31185586 A JP31185586 A JP 31185586A JP S63168599 A JPS63168599 A JP S63168599A
- Authority
- JP
- Japan
- Prior art keywords
- radioactive waste
- unsaturated polyester
- polyester resin
- acid
- acid value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002901 radioactive waste Substances 0.000 title claims description 36
- 238000003672 processing method Methods 0.000 title 1
- 239000002253 acid Substances 0.000 claims description 31
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 27
- 238000007711 solidification Methods 0.000 claims description 26
- 230000008023 solidification Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 24
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 24
- 229920006305 unsaturated polyester Polymers 0.000 claims description 16
- 235000010288 sodium nitrite Nutrition 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 21
- 239000000463 material Substances 0.000 description 17
- 239000000126 substance Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 11
- 239000003999 initiator Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 7
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 5
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 2
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-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
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N Methyl ethyl ketone Natural products CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- -1 and as necessary Chemical compound 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000012857 radioactive material Substances 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- RWLALWYNXFYRGW-UHFFFAOYSA-N 2-Ethyl-1,3-hexanediol Chemical compound CCCC(O)C(CC)CO RWLALWYNXFYRGW-UHFFFAOYSA-N 0.000 description 1
- WZHHYIOUKQNLQM-UHFFFAOYSA-N 3,4,5,6-tetrachlorophthalic acid Chemical compound OC(=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1C(O)=O WZHHYIOUKQNLQM-UHFFFAOYSA-N 0.000 description 1
- QGXQXRTVKOXDDC-UHFFFAOYSA-N 3,4,5-trichlorophthalic acid Chemical compound OC(=O)C1=CC(Cl)=C(Cl)C(Cl)=C1C(O)=O QGXQXRTVKOXDDC-UHFFFAOYSA-N 0.000 description 1
- YUDBKSANIWMLCU-UHFFFAOYSA-N 3,4-dichlorophthalic acid Chemical compound OC(=O)C1=CC=C(Cl)C(Cl)=C1C(O)=O YUDBKSANIWMLCU-UHFFFAOYSA-N 0.000 description 1
- BKFXSOCDAQACQM-UHFFFAOYSA-N 3-chlorophthalic acid Chemical compound OC(=O)C1=CC=CC(Cl)=C1C(O)=O BKFXSOCDAQACQM-UHFFFAOYSA-N 0.000 description 1
- UERPUZBSSSAZJE-UHFFFAOYSA-N 3-chlorophthalic anhydride Chemical compound ClC1=CC=CC2=C1C(=O)OC2=O UERPUZBSSSAZJE-UHFFFAOYSA-N 0.000 description 1
- JIGUICYYOYEXFS-UHFFFAOYSA-N 3-tert-butylbenzene-1,2-diol Chemical compound CC(C)(C)C1=CC=CC(O)=C1O JIGUICYYOYEXFS-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- QHWKHLYUUZGSCW-UHFFFAOYSA-N Tetrabromophthalic anhydride Chemical compound BrC1=C(Br)C(Br)=C2C(=O)OC(=O)C2=C1Br QHWKHLYUUZGSCW-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229960005082 etohexadiol Drugs 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- MEUKEBNAABNAEX-UHFFFAOYSA-N hydroperoxymethane Chemical group COO MEUKEBNAABNAEX-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002925 low-level radioactive waste Substances 0.000 description 1
- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
- HNEGQIOMVPPMNR-NSCUHMNNSA-N mesaconic acid Chemical compound OC(=O)C(/C)=C/C(O)=O HNEGQIOMVPPMNR-NSCUHMNNSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229940117969 neopentyl glycol Drugs 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は原子力発電所等の放射性物質取扱施設から発生
する中レベルないし低レベルの放射性廃棄物の処理方法
に係り、特に粉体放射性廃棄物のプラスチック固化処理
方法に関する。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to a method for treating medium to low level radioactive waste generated from facilities handling radioactive materials such as nuclear power plants, and particularly This article relates to a plastic solidification treatment method for powdered radioactive waste.
（従来の技術）
一般に沸騰水型原子力発電所、核燃料再処理工場等の放
射性物質取扱施設で発生する濃縮廃液は、竪型薄膜乾燥
機等の乾燥機で乾燥処理され主としてＷｔ酸ナトリウム
や硝酸ナトリウムからなる粉体とされた後、セメント、
アスファルト、プラスチック等からなる固化材により固
化される。(Prior art) Generally, concentrated waste liquid generated in facilities that handle radioactive materials such as boiling water nuclear power plants and nuclear fuel reprocessing plants is dried using dryers such as vertical thin film dryers, mainly using sodium Wt oxide and sodium nitrate. After being made into a powder consisting of cement,
It is solidified using a solidifying material such as asphalt or plastic.
この固化処理方法としては、硬化性樹脂組成物から成る
固化材により固化処理を行なうプラスチック固化処理方
法が、軽量で、機械的強度、減容性、および放射能を閉
じ込める能力に優れた固化体パッケージが得られるとこ
ろがら、近時有望視されている。As this solidification treatment method, a plastic solidification treatment method in which solidification treatment is performed using a solidification material made of a curable resin composition is used as a solidified package that is lightweight, has excellent mechanical strength, volume reduction property, and ability to trap radioactivity. Recently, it has been viewed as promising as it can be obtained.
このプラスチック固化材としては熱硬化性樹脂を用いた
ものが常温にて硬化させることが可能なため広く使用さ
れているが、特にスチレン等の重合作単量体で希釈した
不飽和ポリエステル樹脂、固化開始剤および固化促進剤
を用いて固化材を重合固化させる方法が一般的に採用さ
れている。Thermosetting resins are widely used as plastic solidifying materials because they can be cured at room temperature, but in particular unsaturated polyester resins diluted with polymerization monomers such as styrene, A commonly used method is to polymerize and solidify a solidifying material using an initiator and a solidifying accelerator.
（発明が解決しようとする問題点）
しかし放射性廃液中に亜硝酸ナトリウム等の還元性物質
が含まれていると、この還元性物質が有機過酸化物等の
同化開始剤の分解により生じたラジカルを消費して固化
開始剤としての効力を失わせるため、固化材の硬化が妨
害され、形成された固化体パッケージの硬度が低く、従
って固化体バラゲージのｖ１械的強度や放射能を閉じ込
める能力が低くなるという問題があった。また未重合の
不飽和ポリエステル樹脂からなる固化材は消防法上危険
物に分類されるもので、硬化の不完全な３１化体パッケ
ージは放射性廃棄物をより危険な状態におくことになる
という問題もあった。(Problem to be solved by the invention) However, if the radioactive waste liquid contains a reducing substance such as sodium nitrite, this reducing substance becomes a radical generated by the decomposition of an assimilation initiator such as an organic peroxide. is consumed and loses its effectiveness as a solidification initiator, which hinders the curing of the solidification agent and reduces the hardness of the solidified package formed, thus reducing the v1 mechanical strength of the solidified material and its ability to trap radioactivity. There was a problem with it being low. In addition, the solidifying material made of unpolymerized unsaturated polyester resin is classified as a dangerous substance under the Fire Service Act, and incompletely cured 31 solid packaging leaves radioactive waste in a more dangerous state. There was also.
例えば沸騰水型原子力発電所で発生する濃Ｍ廃液は主成
分は硫酸ナトリウム（Ｎａ２ＳＯ４）であるが、Ｃａ、
Ｓｔ％Ｆｅ、Ｃｏ、Ｎｉ、Ｃｕ等の金属成分や、塩素、
亜硝酸塩等が廃液中に存在し、特に亜硝酸ナトリウムは
廃液タンク、濃縮器等の機器防錆剤として使用されてい
るので廃液中に多く含まれて固化材の硬化を妨害する。For example, the main component of concentrated M wastewater generated at boiling water nuclear power plants is sodium sulfate (Na2SO4), but Ca,
Metal components such as St%Fe, Co, Ni, Cu, chlorine,
Nitrite and the like are present in the waste liquid. In particular, sodium nitrite is used as a rust preventive agent for equipment such as waste liquid tanks and concentrators, so it is contained in large amounts in the waste liquid and interferes with the hardening of the solidifying material.
本発明者の実験によれば、［ａナトリウムの粉体と亜硝
酸ナトリウムの粉体を５９：１の重量比で混合し、この
粉体６０重Ｘ％と不飽和ポリエステルを主成分とする熱
硬化性樹脂４０重９％とを混合し、この熱硬化性樹脂に
対して固化開始剤としてメチルエチルケトンパーオキサ
イドを２．０重３１％ 、固化促進剤としてナフテン酸
コバルトを０．５ＩＣ、ｉ Ｘ添加混合した後２４時間
放置して固化させたところ、形成された固化体は硬化が
不完全でゲル状態であった。また上記の粉体と熱硬化性
樹脂との混合物にコバルト６０のγ線を７メガレントゲ
ン照射したところ、混合物は液状であり硬化はほとんど
認められなかった。一方、硫酸ナトリウムのみの粉体と
不飽和ポリエステルを主成分とする熱硬化性樹脂とを混
合し固化させたところ、はとんど完全に硬化し、強固な
固化体が得られた。According to the experiments of the present inventor, [a] Sodium powder and sodium nitrite powder were mixed at a weight ratio of 59:1, and 60% by weight of this powder and unsaturated polyester as the main component were heated. 40 wt 9% curable resin and 2.0 wt 31% methyl ethyl ketone peroxide as a solidification initiator and 0.5 IC, iX of cobalt naphthenate as a solidification accelerator were added to this thermosetting resin. After mixing, the mixture was allowed to stand for 24 hours to solidify, but the solidified material formed was incompletely hardened and was in a gel state. Furthermore, when the mixture of the above powder and thermosetting resin was irradiated with cobalt 60 gamma rays at 7 megaroentgen, the mixture was liquid and almost no curing was observed. On the other hand, when a powder containing only sodium sulfate and a thermosetting resin mainly composed of unsaturated polyester were mixed and solidified, the mixture was almost completely cured and a strong solidified product was obtained.
このように、亜硝酸ナトリウムなどの還元性物質を含ん
だ放射性廃棄物のプラスチック固化処理では良好な特性
を有する固化体を得ることは困難であった。As described above, it has been difficult to obtain a solidified material with good properties in the plastic solidification treatment of radioactive waste containing reducing substances such as sodium nitrite.
本発明はこのような問題を解決するためになされたもの
で、放射性廃棄物中の亜硝酸ナトリウムなどの還元性物
質により固化材の硬化が妨げられることなく、機械的強
度、安定性を向上させた固化体を形成することのできる
放射性廃棄物の固化処理方法を提供することを目的とす
る。The present invention was made to solve these problems, and it improves mechanical strength and stability without hindering the hardening of the solidifying material due to reducing substances such as sodium nitrite in radioactive waste. An object of the present invention is to provide a method for solidifying radioactive waste that can form a solidified body.
［発明の構成］
（問題点を解決するための手段）
本発明の放射性廃棄物の固化処理方法は、原子力施設で
発生した亜硝酸ナトリウムを含む放射性廃棄物を、不飽
和ポリエステル樹脂で硬化させる固化処理方法において
、前記不飽和ポリエステル樹脂の酸価が０〜５であるこ
とを特徴とする。[Structure of the Invention] (Means for Solving the Problems) The radioactive waste solidification treatment method of the present invention is a solidification method in which radioactive waste containing sodium nitrite generated at a nuclear facility is hardened with an unsaturated polyester resin. The treatment method is characterized in that the unsaturated polyester resin has an acid value of 0 to 5.
上記の酸価は、不飽和ポリエステルを重合性単量体で希
釈した不飽和ポリエステル樹脂等の硬化性樹脂組成物１
９中に含まれるカルボキシル基を中和するのに必要な水
酸化カリウムのｎａｇ数である。まな本発明において不
飽和ポリエステル樹脂の酸価を上記の範囲に定めたのは
、酸価が０未満では不飽和ポリエステル樹脂の固化材と
しての性質が失なわれ、逆に酸価が２０を越えると固化
材の硬化が充分に行なわれないからである。The above acid value is based on a curable resin composition such as an unsaturated polyester resin prepared by diluting an unsaturated polyester with a polymerizable monomer.
This is the nag number of potassium hydroxide necessary to neutralize the carboxyl group contained in 9. In the present invention, the acid value of the unsaturated polyester resin is set in the above range because if the acid value is less than 0, the unsaturated polyester resin loses its properties as a solidifying agent, and on the contrary, if the acid value exceeds 20. This is because the solidifying material is not sufficiently cured.
この不飽和ポリエステル樹脂としては、不飽和ポリエス
テルとスチレン等の重合性単量体との混合物からなるも
のが適している。また処理対象の放射性廃棄物としては
、放射性廃液を乾燥処理した粉体放射性廃棄物が好適で
ある。As this unsaturated polyester resin, one made of a mixture of an unsaturated polyester and a polymerizable monomer such as styrene is suitable. Furthermore, as the radioactive waste to be treated, powdered radioactive waste obtained by drying radioactive waste liquid is suitable.
なお本発明方法において用いられる不飽和ポリエステル
としては、例えば二塩基酸とグリコール成分とのエステ
ル化重縮金物が挙げられ、二塩基酸成分としては、例え
ば無水マレイン酸、フマル酸、イタコン酸、シトラコン
酸、メサコン酸、塩素化マレイン酸等のα、β−不飽和
二塩基酸があげられ、必要に応じて無水フタル酸、イソ
フタル酸、テレフタル酸、モノクロルフタル酸、ジクロ
ルフタル酸、トリクロルフタル酸、テトラクロロ無水フ
タル酸、テトラブロモ無水フタル酸、エンドメチレンテ
トラしドロ無水フタル酸、ヘット酸、コハク酸、アジピ
ン酸、ピメリン酸、セバシン酸、グルタル酸等の飽和二
塩基酸を添加してもよい。The unsaturated polyester used in the method of the present invention includes, for example, a polycondensate esterified with a dibasic acid and a glycol component, and the dibasic acid component includes, for example, maleic anhydride, fumaric acid, itaconic acid, citraconic acid, etc. Examples include α,β-unsaturated dibasic acids such as mesaconic acid and chlorinated maleic acid, and as necessary, phthalic anhydride, isophthalic acid, terephthalic acid, monochlorophthalic acid, dichlorophthalic acid, trichlorophthalic acid, and tetrachlorophthalic acid. Saturated dibasic acids such as chlorophthalic anhydride, tetrabromo-phthalic anhydride, endomethylenetetra-drophthalic anhydride, het acid, succinic acid, adipic acid, pimelic acid, sebacic acid, and glutaric acid may be added.
そしてグリコール成分としては、例えばエチレングリコ
ール、ジエチレングリコール、トリエチレングリコール
、プロピレングリコール、ジプロピレングリコール、１
，３−ブチレングリコール、１．４−ブチレングリコー
ル、２，３−ブチレングリコール、ネオペンチルグリコ
ール、ヘキシレングリコール、オクチレングリコール、
ビスフェノールＡジオキシエチルエーテル付加物、ビス
フェノールＡジオキシプロピルエーテル付加物、水添ビ
スフェノールＡ、あるいはエチレンオキシド、プロピレ
ンオキシド、ブチレンオキシド等のアルキレンオキシド
等があげられ、必要に応じてトリメチロールプロパン、
グリセリン等の多価アルコールを併用してもよい。Examples of glycol components include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol,
, 3-butylene glycol, 1,4-butylene glycol, 2,3-butylene glycol, neopentyl glycol, hexylene glycol, octylene glycol,
Examples include bisphenol A dioxyethyl ether adduct, bisphenol A dioxypropyl ether adduct, hydrogenated bisphenol A, or alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide, and if necessary, trimethylolpropane,
A polyhydric alcohol such as glycerin may be used in combination.
また本発明方法において用いられる重合性単産体として
は、例えばスチレン、α−メチルスチレン、ビニルトル
エン、パラメチルスチレン等のエチレン性二重結合を有
する芳香族化合物、メチルメタアクリレート、アクリル
オリコマ−等の脂肪族化合物等があげられる。この単量
体の使用量は、不飽和ポリエステルと単量体との合計量
に対して２０〜８０％の範囲が好ましい。Examples of the polymerizable monoproducts used in the method of the present invention include aromatic compounds having an ethylenic double bond such as styrene, α-methylstyrene, vinyltoluene, and paramethylstyrene, methyl methacrylate, and acrylic oligomers. Examples include aliphatic compounds. The amount of this monomer used is preferably in the range of 20 to 80% based on the total amount of the unsaturated polyester and the monomer.
そして本発明方法において用いられる不飽和ポリエステ
ルの酸価は０〜２０、好ましくは０〜１０、不飽和ポリ
エステルを単量体等で溶がした不飽和ポリエステル樹脂
の酸価は０〜５、好ましくは０〜２である。The unsaturated polyester used in the method of the present invention has an acid value of 0 to 20, preferably 0 to 10, and the unsaturated polyester resin obtained by dissolving the unsaturated polyester with a monomer etc. has an acid value of 0 to 5, preferably It is 0-2.
また本発明方法において用いられる不飽和ポリエステル
樹脂の固化開始剤としては、例えばハイドロパーオキサ
イド、メチルエチルケトンパーオキサイド、ベンゾイル
パーオキサイド、ｔ−ブチルパーベンゾエイト等があげ
られ、固化促進剤としては、例えば有機金属塩、ジメチ
ルアニリン等があげられる。Examples of the solidification initiator for the unsaturated polyester resin used in the method of the present invention include hydroperoxide, methyl ethyl ketone peroxide, benzoyl peroxide, t-butyl perbenzoate, etc., and examples of the solidification accelerator include organic Examples include metal salts and dimethylaniline.
さらに、上記の不飽和ポリエステル樹脂に必要に応じて
可塑剤や重合禁止剤等を添加してもよく、可塑剤として
は、例えばジブチルフタレート、ジブチルマレエート等
のフタル酸エステル、リン酸エステル類等があげられ、
重合禁止剤としては、例えばハイドロキノン、ベンゾキ
ノン、ｔ−ブチルカテコール等があげられる。Furthermore, a plasticizer, a polymerization inhibitor, etc. may be added to the above-mentioned unsaturated polyester resin as necessary. Examples of the plasticizer include phthalate esters such as dibutyl phthalate and dibutyl maleate, phosphate esters, etc. was given,
Examples of the polymerization inhibitor include hydroquinone, benzoquinone, and t-butylcatechol.
そして本発明方法において不飽和ポリエステル樹脂の酸
価を５以下にするために、放射性廃棄物と固化材との混
合物にアルカリ性物質を混入させて固化させる方法があ
り、このアルカリ性物質としては、例えばＮａ、Ｍｇ、
Ｃａ等の水酸化物または酸化物の粉末、あるいは水溶液
があげられる。In order to make the acid value of the unsaturated polyester resin 5 or less in the method of the present invention, there is a method of mixing an alkaline substance into the mixture of radioactive waste and a solidifying material and solidifying it. , Mg,
Examples include powders or aqueous solutions of hydroxides or oxides such as Ca.
またこのアルカリ性物質は予め放射性廃棄物中に混合し
てもよく、または不飽和ポリエステル樹脂と放射性廃棄
物とを混合する際にアルカリ性物質を添加してもよく、
さらにまた固化促進剤にアルカリ性物質を添加してもよ
い、このアルカリ性物質は、不飽和ポリエステル樹脂の
酸価が０〜５、好ましくは０〜２になる量を添加する。In addition, this alkaline substance may be mixed into the radioactive waste in advance, or the alkaline substance may be added when mixing the unsaturated polyester resin and the radioactive waste.
Furthermore, an alkaline substance may be added to the solidification promoter, and this alkaline substance is added in an amount such that the acid value of the unsaturated polyester resin becomes 0 to 5, preferably 0 to 2.
（作用）
本発明の放射性廃棄物の固化処理方法においては、酸価
が５以下の不飽和ポリエステル樹脂で放射性廃棄物を硬
化させることにより、放射性廃棄物中の亜硝酸ナトリウ
ム等の還元性物質により固化開始剤の効果が失われるこ
となく固化材の硬化が進行するので、硬化の完全な固化
体パッケージが形成される。(Function) In the method for solidifying radioactive waste of the present invention, by curing the radioactive waste with an unsaturated polyester resin having an acid value of 5 or less, reducing substances such as sodium nitrite in the radioactive waste are Since the curing of the solidification material proceeds without loss of the effectiveness of the solidification initiator, a completely cured solidification package is formed.
従って、本発明方法を用いれば、亜硝酸ナトリウム等の
還元性物質を含む放射性廃棄物を機械的強度、安定性を
向上させた固化体パッケージとして固化処理することが
できる。Therefore, by using the method of the present invention, radioactive waste containing reducing substances such as sodium nitrite can be solidified into a solidified package with improved mechanical strength and stability.
（実施例） 以下本発明の実施例について説明する。(Example) Examples of the present invention will be described below.
実施例１
本発明方法を実施するにあたり、無水マレイン酸７６ｇ
、無水フタル酸１７０ｇとプロピレングリコール１８２
ｇとを２００ ’Ｃで反応させ、１０時間後に酸価１５
の不飽和ポリエステルを得た。この不飽和ポリエステル
を冷却後、重合禁止剤およびスチレンモノマー６００ｇ
を加え不飽和ポリニスデル樹脂を製造しな、この不飽和
ポリエステル樹脂の酸価は５であった。そしてこの不飽
和ポリエステル樹脂４０重量％と、模擬放射性廃棄物粉
体として１ｉｆｔ酸ナトツナトリウム５９、亜硝酸ナト
リウム１重量Ｘとを混合し、この混合物に固化開始剤と
してメチルエチルケトンパーオキサイドを不飽和ポリエ
ステル樹脂に対して２重量％、固化促進剤としてナフテ
ン酸コバルトを不飽和ポリエステル樹脂に対して１重量
％を添加した後、この混合物を一昼夜放置したところ、
強固なプラスチック固化体が得られた。Example 1 In carrying out the method of the present invention, 76 g of maleic anhydride
, 170 g of phthalic anhydride and 182 g of propylene glycol
g at 200'C, and after 10 hours the acid value was 15.
An unsaturated polyester was obtained. After cooling this unsaturated polyester, add a polymerization inhibitor and 600 g of styrene monomer.
The acid value of this unsaturated polyester resin was 5. Then, 40% by weight of this unsaturated polyester resin was mixed with 59% by weight of sodium nitrate and 1% by weight of sodium nitrite as a simulated radioactive waste powder, and methyl ethyl ketone peroxide was added to this mixture as a solidification initiator to make the unsaturated polyester resin. After adding cobalt naphthenate as a solidification accelerator in an amount of 1% by weight to the unsaturated polyester resin, this mixture was left overnight.
A strong plastic solidified body was obtained.
実施例２
無水マレイン酸２６９、無水フタル酸２４４ｇとプロピ
レングリコール１６８ｇとを２００℃で反応させて、酸
価１０の不飽和ポリエステルを得な点以外は実施例１と
同様にして模擬放射性廃棄物粉体の固化処理を行なった
ところ、強固なプラスチック同化体が得られた。このと
き用いた不飽和ポリエステル樹脂の酸価は３であった。Example 2 A simulated radioactive waste powder was produced in the same manner as in Example 1, except that 269 g of maleic anhydride, 244 g of phthalic anhydride, and 168 g of propylene glycol were reacted at 200°C to obtain an unsaturated polyester with an acid value of 10. When the body was solidified, a strong plastic assimilated body was obtained. The acid value of the unsaturated polyester resin used at this time was 3.
実施例３
無水マレイン酸１０６ ！ＩＩ 、無水フタル酸５４
（Ｊ、導水ヘット９１４０ （＋とプロピレングリコー
ル１７２９とを２００’Ｃで反応させ１２時間後に酸価
５の不飽和ポリエステルを得た点以外は実施例１．２と
同様にして模擬放射性廃棄物の固化処理を行なったとこ
ろ、強固なプラスチック固化体が得られた。Example 3 Maleic anhydride 106! II, phthalic anhydride 54
(J, Water Conduction Het 9140 (+) and propylene glycol 1729 were reacted at 200'C, and after 12 hours, an unsaturated polyester with an acid value of 5 was obtained. When the solidification treatment was performed, a strong plastic solidified body was obtained.
このとき用いた不飽和ポリエステル樹脂の酸価は１であ
った。The acid value of the unsaturated polyester resin used at this time was 1.
比較例１
無水マレイン酸７６（１、ｉ水フタル酸１７０ｇとプロ
ピレングリコール１７５９を２００℃で反応させ１０時
間後に酸価３５の不飽和ポリエステルを得な点以外は実
施例１〜３と同様にして模擬放射性廃棄物の固化処理を
行なったところ、固化材はほとんど硬化しなかった。こ
のとき用いた不飽和ポリエステル樹脂の酸価は２０であ
った。Comparative Example 1 Maleic anhydride 76 (1, i) 170 g of hydrophthalic acid and propylene glycol 1759 were reacted at 200°C to obtain an unsaturated polyester with an acid value of 35 after 10 hours. When the simulated radioactive waste was solidified, the solidifying material hardly hardened.The unsaturated polyester resin used at this time had an acid value of 20.
比較例２
無水マレイン酸１０ｇ ％水フタルＭ ２５８（＋とプ
ロピレングリコール１６５ｇとを２００℃で反応させ１
０時間後に酸価２５の不飽和ポリエステルを得た点以外
は実施例１〜３と同様にして模擬放射性廃棄物粉体の固
化処理を行なったところ、形成されな固化体の硬化は不
完全であった。このとき用いた不飽和ポリエステル樹脂
の酸価は１５であった。Comparative Example 2 10 g of maleic anhydride % hydrophthalic acid M 258 (+) was reacted with 165 g of propylene glycol at 200°C.
When the simulated radioactive waste powder was solidified in the same manner as in Examples 1 to 3 except that an unsaturated polyester with an acid value of 25 was obtained after 0 hours, the hardening of the solidified material that was not formed was incomplete. there were. The acid value of the unsaturated polyester resin used at this time was 15.
比較例３
無水マレインＨ１６５ａ、無水フタル酸９５ｇとプロピ
レングリコール１８５ｇとを２００℃で反応させ１０時
間後に酸価２２の不飽和ポリエステルを得た点以外は実
施例１〜３と同様にして模擬放射性廃棄物粉体の固化処
理を行なったところ、形成された固化体の硬化は不完全
であった。このとき用いた不飽、和ポリエステル樹脂の
酸価は１０であった。Comparative Example 3 Simulated radioactive waste was carried out in the same manner as Examples 1 to 3, except that maleic anhydride H165a, 95 g of phthalic anhydride, and 185 g of propylene glycol were reacted at 200°C to obtain an unsaturated polyester with an acid value of 22 after 10 hours. When the powder was solidified, the solidified material formed was incompletely cured. The acid value of the unsaturated, Japanese polyester resin used at this time was 10.
実施例１〜３、および比較例１〜３において形成した固
化体のゲル化時間および表面硬度を次表に示す。The gelation time and surface hardness of the solidified bodies formed in Examples 1 to 3 and Comparative Examples 1 to 3 are shown in the following table.
上表の結果かられかるように、本発明方法においては酸
価が１〜５の不飽和ポリエステル樹脂で放射性廃棄物を
硬化させることにより、亜硝酸ナトリウム等の還元性物
質が放射性廃棄物中に含まれていても固化開始剤の効力
が失われずに固化材の硬化が進むため、硬化が完全な固
化体パッケージが形成される。従って放射性廃棄物を機
械的強度、安定性を向上させた同化体パッケージとして
固化処理することができる。As can be seen from the results in the table above, in the method of the present invention, reducing substances such as sodium nitrite are removed from the radioactive waste by curing the radioactive waste with an unsaturated polyester resin having an acid value of 1 to 5. Even if the solidification initiator is contained, the solidification agent will continue to harden without losing its effectiveness, so that a completely cured solidified package is formed. Therefore, radioactive waste can be solidified as an assimilate package with improved mechanical strength and stability.
［発明の効果］
以上説明したように、本発明の放射性廃棄物の固化処理
方法を用いれば、放射性廃棄物中の亜硝酸ナトリウム等
の還元性物質により固化材の硬化が妨害されることなく
、機械的強度、安定性を向上させた固化体パッケージと
して放射性廃棄物を処理することができる。[Effects of the Invention] As explained above, by using the method for solidifying radioactive waste of the present invention, the curing of the solidifying material is not hindered by reducing substances such as sodium nitrite in the radioactive waste. Radioactive waste can be processed as a solidified package with improved mechanical strength and stability.
Claims (3)
射性廃棄物を、不飽和ポリエステル樹脂で硬化させる固
化処理方法において、前記不飽和ポリエステル樹脂の酸
価が０〜５であることを特徴とする放射性廃棄物の固化
処理方法。(1) A solidification treatment method of curing radioactive waste containing sodium nitrite generated at a nuclear facility with an unsaturated polyester resin, characterized in that the unsaturated polyester resin has an acid value of 0 to 5. Solidification treatment method for waste.
と重合性単量体とからなることを特徴とする特許請求の
範囲第１項記載の放射性廃棄物の固化処理方法。(2) The method for solidifying radioactive waste according to claim 1, wherein the unsaturated polyester resin comprises an unsaturated polyester and a polymerizable monomer.
化した粉体放射性廃棄物であることを特徴とする特許請
求の範囲第１項または第２項記載の放射性廃棄物の固化
処理方法。(3) Solidification treatment of radioactive waste according to claim 1 or 2, characterized in that the radioactive waste is powdered radioactive waste obtained by drying and powdering radioactive waste liquid. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311855A JPH07119832B2 (en) | 1986-12-30 | 1986-12-30 | Method for solidifying radioactive waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311855A JPH07119832B2 (en) | 1986-12-30 | 1986-12-30 | Method for solidifying radioactive waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63168599A true JPS63168599A (en) | 1988-07-12 |
| JPH07119832B2 JPH07119832B2 (en) | 1995-12-20 |
Family
ID=18022228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61311855A Expired - Lifetime JPH07119832B2 (en) | 1986-12-30 | 1986-12-30 | Method for solidifying radioactive waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07119832B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63223598A (en) * | 1987-03-13 | 1988-09-19 | 日揮株式会社 | Solidifying processing method of radioactive waste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564100A (en) * | 1979-06-25 | 1981-01-16 | Nippon Atomic Ind Group Co | Method of solidfying radioactive liquid waste with plastics |
| JPS5958397A (en) * | 1982-09-28 | 1984-04-04 | 株式会社東芝 | Radioactive waste solidifying device |
| JPS60219599A (en) * | 1984-04-16 | 1985-11-02 | 株式会社 富士電機総合研究所 | Plastic solidifying processing method of radioactive waste |
-
1986
- 1986-12-30 JP JP61311855A patent/JPH07119832B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS564100A (en) * | 1979-06-25 | 1981-01-16 | Nippon Atomic Ind Group Co | Method of solidfying radioactive liquid waste with plastics |
| JPS5958397A (en) * | 1982-09-28 | 1984-04-04 | 株式会社東芝 | Radioactive waste solidifying device |
| JPS60219599A (en) * | 1984-04-16 | 1985-11-02 | 株式会社 富士電機総合研究所 | Plastic solidifying processing method of radioactive waste |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63223598A (en) * | 1987-03-13 | 1988-09-19 | 日揮株式会社 | Solidifying processing method of radioactive waste |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07119832B2 (en) | 1995-12-20 |
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