System and method for preparing deuterium-depleted water and deuterium-rich water by separating natural water

Abstract

The invention discloses a system for preparing deuterium-depleted water and deuterium-rich water by separating natural water. A core of the system is provided with a closed loop, a plurality of separation columns are sequentially connected in an end-to-end manner to form the closed loop, the system further comprises a raw material water storage tank, a deuterium-rich water storage tank, a deuterium-depleted water storage tank, a metering pump, a carburetor, pipelines and valves, and the pipelines and the valves are connected with the devices. According to the system, separation is implementedby the aid of moving bed simulation principles, raw material water vapor circularly moves in the closed loop formed by the separation columns through sequentially heating and cooling of the separationcolumns and control of a one-way valve, a constantly increased deuterium concentration gradient is acquired along with increase of cycle number, the deuterium-rich water is extracted from the top ofthe separation column at the near end of a heating loop, and the deuterium-depleted water is extracted from the bottom of the separation column at the far end of the heating loop after certain times of heating and cooling circulation of the separation columns are implemented. The system is simple in structure, convenient to control, smaller in device size and lower in construction cost, fillers are low in cost, and the natural water can be directly separated by the aid of a semi-continuous mode to prepare the deuterium-depleted water and the deuterium-rich water.

Description

Technical field [0001] The invention relates to the technical field of water treatment, in particular to a system and method for separating natural water to prepare deuterium-poor water and deuterium-rich water. Background technique [0002] Deuterium-depleted water refers to water with a deuterium content of less than 150ppm. Tests by Hungarian scientist Gabor Somlyai and Kanagawa University Guan Bobo of Japan have proved that deuterium-depleted water has a variety of biological effects beneficial to the human body: activate human cells and enhance human immunity , Anti-cancer health care functions, etc. Deuterium-depleted water is currently an important auxiliary product combined with cancer treatment in the world. Some qualified countries in the world are committed to the research and development of deuterium-depleted water. For example, Japan, the United States, Romania, etc. have put products on the market in the field of cancer treatment. Has been leading the application. ...

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Problems solved by technology

However, the industrial application of the water / hydrogen dual-temperature exchange method has the following problems: on the one hand, the cooling tower must use expensive platinum-based hydrophobic catalysts as fillers, and the system construction cost is high; on the other hand, the exchange reaction of water / hydrogen isotopes Including two continuous processes of liquid-phase catalytic exchange and vapor-phase catalytic exchange, the control of parameters such as temperature and flow is more complicated

However, at present, the water separation research using the above-mentioned inorganic fillers only adopts the small-scale fixed bed carrier gas purging mode. After the bed penetrates, there is a large amount of water remaining in the molecular sieve filler, which requires complex regeneration treatment before it can be reused, and the separation efficiency is low. , has no practical application value

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