A kind of preservation method of ultrafiltration membrane module

Abstract

The present invention proposes a preservation method for ultrafiltration membrane components, comprising: soaking the ultrafiltration membrane components in a bactericide for treatment, then soaking the sterilized ultrafiltration membrane components in an aqueous solution of a pore-preserving agent for treatment, and then drying the ultrafiltration membrane components by centrifugation , to remove excess water, and then steam fumigation to achieve the purpose of secondary disinfection and weight reduction, and finally vacuum-sealed packaging to make the membrane module easy to store. Preservation by adopting the method of the invention can effectively reduce the weight of the membrane module, improve the storage performance and appearance and smell of the membrane module at the same time, and has good application prospect.

Description

technical field [0001] The invention relates to the technical field of hollow fiber membranes, in particular to a preservation method for ultrafiltration membrane modules. Background technique [0002] Ultrafiltration membrane is a working structure that uses pressure difference and pore size difference to separate media. It is mainly used in water treatment, biopharmaceutical industry and food industry. The working performance of ultrafiltration membrane is determined by the membrane pores on its surface and the membrane material. It is determined by itself. In the prior art, the ultrafiltration membrane is mainly prepared by the phase inversion method, so the surface of the membrane filament is wet after production. When the water dries, the membrane pores on the surface of the membrane filament will shrink, affecting the water flux and Therefore, ultrafiltration membrane modules need to be stored in a wet state after production, and too wet will greatly increase the overa...

AI Technical Summary

Problems solved by technology

[0002] Ultrafiltration membrane is a working structure that uses pressure difference and pore size difference to separate media. It is mainly used in water treatment, biopharmaceutical industry and food industry. The working performance of ultrafiltration membrane is determined by the membrane pores on its surface and the membrane material. It is determined by itself. In the prior art, the ultrafiltration membrane is mainly prepared by the phase inversion method, so the surface of the membrane filament is wet after production. When the water dries, the membrane pores on the surface of the membrane filament will shrink, affecting the water flux and Therefore, ultrafiltration membrane modules need to be stored in a wet state after production, and too wet will greatly increase the overall weight of the membrane module, which is not conducive to transportation

[0003] In the existing preservation technology, most of the water is properly reduced by adding humectant, but the conventional humectant is organic matter, in a humid environment, bacteria are easy to grow in the organic matter, and the amount of water reduction is still small, and the weight of the membrane module overweight

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