Method for separating tritiated water from light water contaminated by the tritiated water
AssigneeGlobal Clean Technology Inc.
InventorSatoshi Nakamura
Life of this patent
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Abstract
Provided is an industrially feasible method for separating tritiated water from contaminated water. The method for separating tritiated water from light water contaminated by the tritiated water, includes the steps of; adding heavy water to the contaminated water; converting the liquid mixture of the contaminated water and the heavy water into a mixture of the light water and a gas hydrate consisting essentially of the tritiated water and the heavy water as the crystal structure under a condition of converting into the gas hydrate of at least one of the heavy water and the tritiated water, and yet keeping most of the light water in liquid state; and separating the gas hydrate from the light water.
Claims11
A method for separating tritiated water from light water contaminated by the tritiated water, the concentration of the tritiated water in the contaminated water being 1.11 to 9.29×10−8 g/L, comprising:
- a first stage of removing the tritiated water from the contaminated water, including the steps of:
- adding heavy water to the contaminated water;
- converting the liquid mixture of the contaminated water and the heavy water into a mixture of the light water of the liquid state and a gas hydrate, wherein:
- the gas hydrate consists essentially of both the tritiated water and the heavy water, but mainly of the heavy water, and
- the light water is mostly in the liquid state;
- and
- separating the gas hydrate from the light water;
- a second stage of separating the tritiated water from heavy water, including the steps of:
- breaking the gas hydrate structure consisting essentially of the tritiated water and the heavy water, so as to get a liquid mixture containing the tritiated water and the heavy water;
- converting the liquid mixture into the heavy water and a gas hydrate consisting essentially of the tritiated water in the crystal structure under a condition of converting into the gas hydrate of the tritiated water and yet keeping the heavy water in the liquid condition;
- separating the gas hydrate from the heavy water;
- and
- breaking the gas hydrate structure of the tritiated water, so as to collecting tritiated water in that order.
A method for separating tritiated water from light water contaminated by the tritiated water, the concentration of the tritiated water in the contaminated water being 1.11 to 9.29×10−8 g/L, comprising the steps of:
- adding heavy water to the contaminated water;
- converting the liquid mixture of the contaminated water and the heavy water into a mixture of the light water of the liquid state and a gas hydrate, wherein:
- the gas hydrate consists essentially of both the tritiated water and the heavy water, but mainly of the heavy water, and
- the light water is mostly in the liquid state;
- and
- separating the gas hydrate from the light water.
Dependencies are inferred from the claim text.