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Membrane element and membrane module

A technology of membrane elements and filter membranes, which is applied in the field of membrane elements and membrane modules, can solve the problems of filter membrane 2 damage or peeling, and the inability to apply high internal pressure, etc., and achieve the effects of inhibiting peeling, high strength, and preventing damage

Inactive Publication Date: 2011-02-23
KUBOTA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] For this reason, as mentioned above, since a tensile force acts on the filter membrane 2 in the direction of peeling off from the joint surface with the filter plate 1, there is a possibility that the filter membrane 2 is easily damaged or peeled off at the welded portion 4, and the The problem that high internal pressure cannot be applied during the liquid cleaning process

Method used

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  • Membrane element and membrane module
  • Membrane element and membrane module
  • Membrane element and membrane module

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Embodiment approach 1

[0038] Hereinafter, embodiments of the present invention will be described based on the drawings. exist Figure 1 to Figure 4 Among them, the membrane cassette 11 constituting the membrane separation device is composed of a plurality of membrane modules 12 stacked up and down, and is installed submerged in a liquid to be treated in a treatment tank (not shown). In the membrane box 11 , an air diffuser 11 a is disposed below the lower membrane module 12 .

[0039] In the membrane module 12, a plurality of membrane elements 13 are arranged side by side at predetermined intervals, and both lateral sides of each membrane element 13 are watertightly sealed to the water collection tank 14, and vertical flow paths are formed between the membrane elements 13. Each water collecting tank 14 is hollow, has a water collecting space inside, and has a square box body, but the shape may be other than square. However, the water collecting tank 14 may also be arranged only on one side of the...

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Abstract

By looping of a filtration membrane, it becomes feasible to provide a high internal pressure at the time of chemical washing and also becomes feasible to carry out liquid backwashing at a high internal pressure.

Description

technical field [0001] The present invention relates to a membrane element and membrane module used for filtration or concentration in general water treatment of upper water or waste water. Background technique [0002] As a conventional membrane separation device, for example, a submerged membrane device in which a plurality of membrane elements are arranged in parallel at appropriate intervals is known. As membrane elements, for example, there are Figure 9 to Figure 10 type shown. exist Figure 9 to Figure 10 In the membrane element, a filter membrane 2 made of an organic membrane is arranged on a rectangular flat filter plate 1 as a membrane support to cover its surface, and the filter membrane 2 is bonded to the filter plate 1 at its peripheral edge. 1 has a water collecting port 3. Here, the filter plate 1 made of resin is exemplified as a membrane support body, but members of flexible materials such as non-woven fabrics and nets may also be used as the membrane supp...

Claims

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Application Information

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IPC IPC(8): B01D63/08B01D63/00
CPCB01D61/18B01D2317/022B01D2315/06B01D2313/04B01D69/06B01D63/082B01D63/081C02F2303/16B01D65/003C02F3/1273Y02W10/10B01D2313/042
Inventor 枡谷英俊冈岛康信北野智一
Owner KUBOTA LTD