EP0096342A1
Expired / Lapsed
EP
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Method of processing radioactive waste
Assignee: Hitachi Ltd
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Filing: 1983-05-31
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Granted: —
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Expires: 2003-05-31
Abstract
Abstract This invention relates to a method of processing radioactive waste, comprising the steps of disorganizing radioactive waste, pulverizing the disorganized waste, and solidifying the pulverized product with an inorganic hardening agent. According to the present invention, a solidified body having money-saving characteristics and a high volume reducing effect and capable of standing all kinds of weather condition excellently for a long period of time can be obtained.
Inventors
- 👤 Susumu Horiuchi
- 👤 Shin Tamata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 02:38
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; G21F9/28; G21F9/30; G21F9/301; G21F9/302; G21F9/14
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
47 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste occurring in a nuclear power plant, pulverizing the disorganized radioactive waste by a centrifugal film drier, and packing the pulverized product in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 2
Independent Claim
47 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste occurring in a nuclear power plant, pulverizing the disorganized radioactive waste by a centrifugal film drier, and packing the pulverized product in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 3
Independent Claim
52 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste occurring in a nuclear power plant, pulverizing the disorganized radioactive waste by a centrifugal film drier, forming the pulverized product into pellets, and packing the pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 4
Independent Claim
52 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste occurring in a nuclear power plant, pulverizing the disorganized radioactive waste by a centrifugal film drier, forming the pulverized product into pellets, and packing the pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 5
Independent Claim
57 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste which occurs in a nuclear power plant, concentrating the disorganized radioactive waste, pulverizing the concentrated waste by a centrifugal film drier, forming the pulverized product into pellets, and packing the pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 6
Independent Claim
57 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste which occurs in a nuclear power plant, concentrating the disorganized radioactive waste, pulverizing the concentrated waste by a centrifugal film drier, forming the pulverized product into pellets, and packing the pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 7
Independent Claim
59 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste which has occurred in a nuclear power plant, concentrating the disorganized radioactive waste, pulverizing the concentrated waste by a centrifugal film drier, forming the dried, pulverized product into pellets, and packing the pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 8
Independent Claim
59 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste which has occurred in a nuclear power plant, concentrating the disorganized radioactive waste, pulverizing the concentrated waste by a centrifugal film drier, forming the dried, pulverized product into pellets, and packing the pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 9
Independent Claim
68 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste occurring in a nuclear power plant, pulverizing the disorganized waste by a centrifugal film drier, forming the pulverized product into pellets, storing the pellets temporarily for a predetermined period of time to attenuate the radioactivity therein, and packing the temporarily stored pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 10
Independent Claim
68 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste occurring in a nuclear power plant, pulverizing the disorganized waste by a centrifugal film drier, forming the pulverized product into pellets, storing the pellets temporarily for a predetermined period of time to attenuate the radioactivity therein, and packing the temporarily stored pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 11
Independent Claim
73 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste occurring in a nuclear power plant, concentrating the disorganized radioactive waste, pulverizing the concentrated waste by a centrifugal film drier, forming the pulverized product into pellets, temporarily storing the pellets for a predetermined period of time to attenuate the radioactivity therein, and packing the temporarily stored pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 12
Independent Claim
73 words
A method of processing radioactive waste, comprising the steps of disorganizing radioactive waste occurring in a nuclear power plant, concentrating the disorganized radioactive waste, pulverizing the concentrated waste by a centrifugal film drier, forming the pulverized product into pellets, temporarily storing the pellets for a predetermined period of time to attenuate the radioactivity therein, and packing the temporarily stored pellets in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 13
Independent Claim
72 words
A method of processing radioactive waste, comprising the steps of disorganizing a waste sludge occurring in a nuclear power plant, mixing the disorganized waste sludge with a radioactive waste liquid occurring in said nuclear power plant, to concentrate the mixture, pulverizing the concentrated waste by a centrifugal film drier, forming the pulverized product into pellets, and packing the pellets in a container .with an inorganic hardening agent to solidify the mixture therein.
Claim 14
Independent Claim
72 words
A method of processing radioactive waste, comprising the steps of disorganizing a waste sludge occurring in a nuclear power plant, mixing the disorganized waste sludge with a radioactive waste liquid occurring in said nuclear power plant, to concentrate the mixture, pulverizing the concentrated waste by a centrifugal film drier, forming the pulverized product into pellets, and packing the pellets in a container .with an inorganic hardening agent to solidify the mixture therein.
Claim 15
Independent Claim
61 words
A method of processing radioactive waste, comprising the steps of disorganizing a waste sludge occurring in a nuclear power plant, pulverizing a mixture of the disorganized waste sludge and a radioactive waste liquid occurring in said nuclear power plant,.by a centrifugal film drier, and packing the pulverized product in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 16
Independent Claim
61 words
A method of processing radioactive waste, comprising the steps of disorganizing a waste sludge occurring in a nuclear power plant, pulverizing a mixture of the disorganized waste sludge and a radioactive waste liquid occurring in said nuclear power plant,.by a centrifugal film drier, and packing the pulverized product in a container with an inorganic hardening agent to solidify the mixture therein.
Claim 17
Independent Claim
80 words
A method of processing radioactive waste, comprising the steps of adding hydrogen peroxide to radioactive waste occurring in a nuclear power plant and containing a spent ion exchange resin, to oxidation- decompose the waste, neutralizing the decomposed liquid waste with an alkali substance, heating the neutralized liquid waste to concentrate the same, pulverizing the concentrated waste by a centrifugal film drier, and packing the pulverized product and an inorganic hardening agent in an inorganic container to solidify the mixture therein.
Claim 18
Independent Claim
80 words
A method of processing radioactive waste, comprising the steps of adding hydrogen peroxide to radioactive waste occurring in a nuclear power plant and containing a spent ion exchange resin, to oxidation- decompose the waste, neutralizing the decomposed liquid waste with an alkali substance, heating the neutralized liquid waste to concentrate the same, pulverizing the concentrated waste by a centrifugal film drier, and packing the pulverized product and an inorganic hardening agent in an inorganic container to solidify the mixture therein.
Claim 19
Independent Claim
68 words
A method of processing radioactive waste, comprising the steps of burning with heat radioactive waste occurring in a nuclear power plant and containing a spent ion exchange resin, neutralizing the combustion residue with an alkali solution, thermally concentrating the neutralized solution, pulverizing the concentrated waste by a centrifugal drier, and packing the pulverized product and an inorganic hardening agent in an inorganic container to solidify the mixture therein.
Claim 20
Independent Claim
68 words
A method of processing radioactive waste, comprising the steps of burning with heat radioactive waste occurring in a nuclear power plant and containing a spent ion exchange resin, neutralizing the combustion residue with an alkali solution, thermally concentrating the neutralized solution, pulverizing the concentrated waste by a centrifugal drier, and packing the pulverized product and an inorganic hardening agent in an inorganic container to solidify the mixture therein.
References Cited (Backward Citations)
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