Membrane stack capable of being automatically assembled and disassembled for treating radioactive wastewater

Abstract

The invention provides a membrane stack capable of being automatically assembled and disassembled and used for treating radioactive wastewater. The membrane stack capable of being automatically assembled and disassembled and used for treating radioactive wastewater comprises membrane partition plates (1), membranes (2)and a membrane collecting mechanism, and the membranes (2)pass through the upperends or the lower ends of the two adjacent membrane partition plates (1)to separate the adjacent membrane partition plates (1)through the membranes; and the membranes continuously slid through the pulling of the automatic membrane collecting mechanism, so that the purpose of automatically and continuously mounting or dismounting the membranes is achieved, the direct contact between an operator and a membrane stack is avoided, and the radioactive hazard of radioactive wastewater, especially the radioactive hazard of high-radioactivity wastewater in nuclear wastewater, is avoided.

Description

technical field [0001] The invention relates to the field of radioactive waste water treatment, in particular to an automatically loaded and unloaded membrane stack for radioactive waste water treatment. Background technique [0002] The focus of radioactive wastewater treatment technology is to increase the decontamination factor of radioactive wastewater, to make the concentration of radionuclides in the discharged water as low as possible, and to make the volume of radioactive concentrate as small as possible. [0003] The rise of membrane technology provides a new option for the treatment of radioactive wastewater. Ultrafiltration, microfiltration, reverse osmosis membrane treatment, electrodialysis, etc. are all common methods for radioactive wastewater treatment. As an effective unit for water treatment, the flat-plate membrane stack has the advantages of easy processing, pollution resistance, good cleaning, long life, etc. Electrodialysis, electrodeionization, flow ...

AI Technical Summary

Problems solved by technology

However, this kind of partition is limited by processing accuracy, material performance, operation level and other reasons, so it is difficult to ensure that there will be no internal seepage and external seepage, which also causes the performance of the membrane stack to decline. However, in special fields such as radioactive wastewater treatment App is restricted

At present, the sealing performance of the membrane stack is only improved by changing the material properties, increasing the width of the sealing edge, and improving the extrusion conditions, but there is still no way to fundamentally solve the problems of water leakage and electric leakage.

[0008] Moreover, the traditional membrane stack composed of membrane separators has cumbersome equipment and complicated applications in use, which is not conducive to installation, maintenance and membrane replacement, and the water inlet conditions are strict. To realize a membrane process, considerable measures are required Many pretreatments and posttreatments make the process complicated

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