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Dry-state preservation method for ultra-filtration membrane component

A preservation method and ultrafiltration membrane technology, which is applied to the preservation of ultrafiltration membrane modules, aiming at the field of dry preservation of ultrafiltration membrane modules, can solve the problem that cannot meet the needs of safe storage and convenient transportation of ultrafiltration membrane modules at the same time, and the material of ultrafiltration membranes Strict requirements, cumbersome handling and other issues, to achieve the effect of reducing transportation difficulty, low cost, and convenient cost

Inactive Publication Date: 2012-10-03
SHANDONG ZHAOJIN MOTIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method avoids the problem of difficult transportation caused by the first method, but it has strict requirements on the material of the ultrafiltration membrane, cumbersome handling, and is only suitable for unused ultrafiltration components, and the adaptability is narrow
[0005] The above two methods cannot simultaneously meet the needs of safe storage and convenient transportation of ultrafiltration membrane modules made of a wide range of membrane materials

Method used

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  • Dry-state preservation method for ultra-filtration membrane component

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Embodiment ( 1

[0023] The invention discloses a method for storing ultrafiltration membrane components in a dry state. The ultrafiltration membrane components to be preserved are made of internal pressure polysulfone material and have a molecular weight cut-off of 67,000. at water temperature 25 o C. Under the operating pressure of 0.1MPa, the ultrafiltration water flux is 150LMH (liter / square meter / hour).

[0024] Before packaging after production, install the ultrafiltration membrane module on a small ultrafiltration equipment, configure a sufficient amount of sodium hypochlorite sterilizing solution with a concentration of 100ppm (calculated as available chlorine), and run it at room temperature for 5 minutes at an operating pressure of 0.1MPa , to sterilize the components.

[0025] Use ultrafiltration water to fully clean the ultrafiltration membrane module at room temperature, and operate at a pressure of 0.1 MPa for 2 hours.

[0026] Remove the ultrafiltration membrane assembly from ...

Embodiment ( 2

[0031] Embodiment (two) ~ (four):

Embodiment

[0032] Embodiments (2), (3), and (4) Refer to Embodiment (1) for actual operation, and refer to Table 1 for specific details, as follows.

[0033] Table 1 Implementation parameters of ultrafiltration membrane module dry membrane preservation method

[0034]

[0035] Note*: at water temperature 25 o C, under the operating pressure of 0.1MPa, the ultra-filtered water is used for detection.

[0036] After the ultrafiltration membrane module is operated with the above parameters, the ultrafiltration performance has not changed after testing. The ultrafilter is effectively preserved.

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Abstract

The invention relates to a dry-state preservation method for an ultra-filtration membrane component, belonging to the technical field of the ultra-filtration membrane component. The dry-state preservation method for the ultra-filtration membrane component comprises three main parts of sterilization, prevention of corrosion and mildew as well as algae, and moisturizing and sequentially comprises the following steps of: a. preparing a sterilization solution, and washing the ultra-filtration membrane component; B. preparing an anticorrosion moisturizing solution, injecting the anticorrosion moisturizing solution into the ultra-filtration membrane component for soaking a membrane filament; and C. pouring out the anticorrosion moisturizing solution in the ultra-filtration membrane component, and sealing the ultra-filtration membrane component. The dry-state preservation method ensures the performance of the ultra-filtration membrane component, simultaneously reduces the transportation difficulty caused by the increasing of weight due to the injection of a protection solution and is an effectively convenient low-cost dry-state preservation method for the ultra-filtration membrane component. According to the dry-state preservation method, the quality of the ultra-filtration membrane component is reduced on the basis that the performance of the ultra-filtration membrane component is not affected, thereby reducing the transportation cost of the ultra-filtration membrane component.

Description

technical field [0001] The invention relates to a method for preserving an ultrafiltration membrane module, in particular to a method for storing an ultrafiltration membrane module in a dry state, and belongs to the technical field of ultrafiltration membrane module production. Background technique [0002] At present, the existing preservation methods of ultrafiltration membrane modules are divided into two types: adding protection solution and purely dry state. [0003] The first method of adding protection liquid is to inject a certain quality of moisturizing and antiseptic solution into the ultrafiltration membrane assembly and seal it, so that the protection liquid is continuously filled inside the ultrafiltration membrane assembly. This method greatly increases the transportation quality of the ultrafiltration membrane module, which leads to difficulty in handling the module, high transportation costs, and the risk of leakage of the protective fluid due to poor sealing...

Claims

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Application Information

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IPC IPC(8): B01D65/00B01D65/02
Inventor 王乐译其他发明人请求不公开姓名
Owner SHANDONG ZHAOJIN MOTIAN
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