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Method for operating clarifying-film module

A technology for purification membranes and modules, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of incomplete removal of suspended substances and insufficient vibration

Inactive Publication Date: 2016-12-14
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also a problem in air washing, that is, since the closed end 3 of the purification membrane 1 has been fixed to the shell, the vibration caused by the gas (air) flow is not enough and cannot completely remove the suspension adhering to the closed end 3 substance

Method used

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  • Method for operating clarifying-film module
  • Method for operating clarifying-film module
  • Method for operating clarifying-film module

Examples

Experimental program
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Embodiment Construction

[0046] The embodiments of the present invention are explained below with reference to the drawings. The present invention should not be considered as being limited to the following examples at all.

[0047] In this specification, the terms "upper" and "lower" indicate the direction of the purification membrane module in a state that has been placed for use, and are based on the state shown in each figure.

[0048] In carrying out the present invention, examples of the water to be filtered include various waters such as sea water, river water, ground water, and treated sewage or wastewater.

[0049] Use separately figure 1 , figure 2 with image 3 Explain different embodiments of the purification membrane module that can be used when implementing the present invention.

[0050] figure 1 The illustrated purification membrane module 14 a is configured by a shell (cylindrical shell) 4 and an external pressure type purification membrane 1, which is composed of multiple bundles of a large ...

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PUM

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Abstract

The objective of the present invention is to improve the cleanability of a clarifying-film module that is provided with a hollow-fiber clarifying film, and provide a method for operating the clarifying-film module that improves treatment performance. In this method for operating a clarifying-film module, either of the following steps is performed after making the sealed end of the clarifying-film module higher than the open end. (a) A sealed-end high-position cleaning step (A) for filling the outer side of the clarifying film inside the clarifying-film module with a liquid, and then performing air cleaning in which a gas is supplied. (b) A sealed-end high-position cleaning step (B) for performing air cleaning in which a gas is supplied while supplying a liquid to the outer side of the clarifying film in the clarifying-film module.

Description

Technical field [0001] The present invention relates to a method of operating a purification membrane module, wherein the purification membrane is used to treat water to be treated. Background technique [0002] Filter devices equipped with purification membranes have the following advantages, such as high purification / bacterial removal performance, simple operation and maintenance, energy saving, space saving, etc., and thus are widely used by purifying and / or removing bacteria in groundwater or surface water Production of drinking water or industrial water. In addition, filtration devices equipped with purification membranes will be more widely used in various fields, for example, for producing pre-treated water to be supplied to a reverse osmosis membrane module for seawater desalination and for producing pretreated water to be supplied to reverse osmosis membranes. The module is used to treat pre-treated water of water obtained by treating water produced by biological treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/02B01D65/06
CPCB01D63/02B01D65/02B01D2321/04B01D2321/162B01D2321/164B01D2321/168B01D2321/18C02F1/444C02F2303/16B01D65/06B01D2321/16C02F1/44
Inventor 新谷昌之大久保贤一
Owner TORAY IND INC