Device and method for radioactive waste water concentration treatment

A technology for radioactive waste water and sinks, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of high equipment requirements, high water inlet pressure, and inappropriate waste water. Achieve the effect of high concentration ratio, long replacement cycle and low operating pressure

Active Publication Date: 2012-02-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it also has many disadvantages, such as high inlet pressure, high equipment requirements, and a great influence of salt content on membrane flux. It is generally not suitable for the treatment of wastewater with a salt content exceeding 10%.

Method used

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  • Device and method for radioactive waste water concentration treatment
  • Device and method for radioactive waste water concentration treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The device for concentrated treatment of radioactive waste water in this embodiment, such as figure 1 As shown, it includes a membrane module 1, a magnetic pump 2, a condensate tank 3, a warm water bath 4, a low-temperature circulation pump 5, a flow meter 6, a thermometer 7, a conductivity meter 8, and a waste water tank 9; one port of the membrane module 1 passes through The pipelines communicate with the low-temperature circulation pump 5 and the condensate water tank 3 to form a condensate circulation loop; the other port of the membrane module 1 communicates with the constant temperature water bath 4 and the waste water tank 9 through pipelines to form a hydrothermal circulation loop. A thermometer 7 is installed at the side inlet and outlet, and a conductivity meter 8 is connected between the condensate tank 3 and the low-temperature circulation pump 5 .

[0023] The radioactive wastewater concentration treatment experiment using the above-mentioned device is as f...

Embodiment 2

[0026] The device for concentrated treatment of radioactive waste water in this embodiment, such as figure 1 As shown, it includes a membrane module 1, a magnetic pump 2, a condensate tank 3, a warm water bath 4, a low-temperature circulation pump 5, a flow meter 6, a thermometer 7, a conductivity meter 8, and a waste water tank 9; one port of the membrane module 1 passes through The pipelines communicate with the low-temperature circulation pump 5 and the condensate water tank 3 to form a condensate circulation loop; the other port of the membrane module 1 communicates with the constant temperature water bath 4 and the waste water tank 9 through pipelines to form a hydrothermal circulation loop. A thermometer 7 is installed at the side inlet and outlet, and a conductivity meter 8 is connected between the condensate tank 3 and the low-temperature circulation pump 5 .

[0027] The radioactive wastewater concentration treatment experiment using the above-mentioned device is as f...

Embodiment 3

[0030] The device for concentrated treatment of radioactive waste water in this embodiment, such as figure 1 As shown, it includes a membrane module 1, a magnetic pump 2, a condensate tank 3, a warm water bath 4, a low-temperature circulation pump 5, a flow meter 6, a thermometer 7, a conductivity meter 8, and a waste water tank 9; one port of the membrane module 1 passes through The pipelines communicate with the low-temperature circulation pump 5 and the condensate water tank 3 to form a condensate circulation loop; the other port of the membrane module 1 communicates with the constant temperature water bath 4 and the waste water tank 9 through pipelines to form a hydrothermal circulation loop. A thermometer 7 is installed at the side inlet and outlet, and a conductivity meter 8 is connected between the condensate tank 3 and the low-temperature circulation pump 5 .

[0031] The radioactive wastewater concentration treatment experiment using the above-mentioned device is as f...

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Abstract

The invention discloses a device and a method for radioactive waste water concentration treatment, which belongs to the technical field of environment protection. A high-polymer hollow fiber type membrane assembly of hydrophobic materials is used as a main body, and the separation between radioactive nuclide and water is realized through controlling the temperature of solution at both sides of a membrane by using water vapor differential pressure as the pushing force, so the goal of concentrating the waste water is reached. The method has the advantages that the flow process is simple, the operation is easy, the decontamination factor is high, the concentration factor is high, the adaptability is high, and the combination with other processes is easy. The water outlet quality of the wastewater can reach the discharge standard only through one-step membrane distillation.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a device and method for concentrated treatment of radioactive waste water. Background technique [0002] In recent years, my country has accelerated the pace of nuclear power construction. While vigorously developing nuclear power, the treatment of nuclear waste has also attracted more and more attention. In particular, the recent Fukushima nuclear leakage accident in Japan has made people all over the world re-examine the development of nuclear power. Whether the radioactive wastewater discharged from nuclear power plants can be treated effectively in a timely manner has become an important factor restricting the development of nuclear power. [0003] Due to the high cost of final solidification and disposal of radioactive waste, the reduction of waste water is the most critical step in the whole process of radioactive waste water treatment. Nuclea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10
Inventor 王建龙刘海洋
Owner TSINGHUA UNIV
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