Membrane filter with double filtration

A membrane filter and double filtration technology, applied in the field of ultrafiltration, microfiltration membrane filter, and nanofiltration, can solve the problems of fragility of the root, fiber accumulation and winding, fragility of the capillary membrane root, etc., and achieve the effect of guaranteed water quality.
CN102631841AInactive Publication Date: 2012-08-15北京坎普尔环保技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
北京坎普尔环保技术有限公司
Publication Date
2012-08-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a membrane filter with double filtration, which belongs to the fields of environment-friendly water treatment technologies and membrane separation technologies. The membrane filter is particularly suitable for an immersed membrane bioreactor (MBR). The membrane filter with double filtration is characterized by consisting of a plurality of membrane filtering units, wherein a plurality of capillary membranes are wrapped and protected by virtue of a mesh filter sleeve. As each capillary membrane is provided with a protecting jacket, the problem that the root part of each capillary membrane is fragile is solved; due to being filtered by the mesh filter sleeve, fiber matters have no chance to contact and wind the capillary membranes; as the fiber matters outside membrane bundles are relatively easy to be removed though a mechanical method, the trouble of damaging the capillary membranes by the fiber matters does not need to be worried about; and as produced water is filtered through a filter cloth filter sleeve and the capillary membranes, the quality of the produced water is better ensured.
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Description

technical field

[0001] The invention belongs to the field of environmental protection water treatment technology and membrane separation technology, and particularly relates to a membrane filter for double filtration, including nanofiltration, ultrafiltration and microfiltration membrane filters. This kind of membrane filter is especially suitable for submerged membrane bioreactor (MBR), membrane enhanced bioreactor (MEBR) and membrane filtration. Background technique

[0002] Hollow fiber membranes or capillary membranes in the known art generally constitute pressure or submerged membrane filters. For clarity, this patent application refers to the division of hollow fiber membranes, capillary membranes and tubular membranes in the US patent (7517421B2), and defines the outer diameters of hollow fiber membranes, capillary membranes and tubular membranes as 0.03-0.1mm; 0.2- 3mm and 4-50mm. The present invention relates to capillary membranes of 0.2-3.0 mm. In addition, nan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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