Plant-type hollow fibre membrane assembly

A technology of external pressure hollow fiber and membrane modules, applied in the direction of membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., can solve the problems of unsuitable submerged membrane bioreactors and unsuitable submerged membrane modules, etc., and achieve easy transportation Compatible with construction and installation, reducing energy consumption and high filling density

Inactive Publication Date: 2004-07-07
MEMBRANE SCI & TECH INST TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, this membrane module also has the following disadvantages: it is not suitable for being used as a submerged membrane module, especially not suitable for being used as a submerged membrane bioreactor

Method used

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  • Plant-type hollow fibre membrane assembly
  • Plant-type hollow fibre membrane assembly
  • Plant-type hollow fibre membrane assembly

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Embodiment Construction

[0016] Such as figure 1 , figure 2 As shown, the single-branched membrane module of the present invention has a structure without a shell casing, which includes an upper end 2 , a lower end 3 , and a hollow fiber membrane 1 for external pressure. Such a membrane module is suitable for use submerged in water. The hollow fiber membranes at the upper and lower casting ends are perforated to lead out the filtrate. Cast end housings can be round or square as shown. The hollow fiber membrane material can be known hollow fiber membranes such as polyvinylidene fluoride, polyethylene, polypropylene, polyethersulfone and the like. Using known casting resins such as epoxy resin and polyurethane for end-cap casting, and then using flexible resins such as silicone rubber and polyurethane for secondary casting of the hollow fiber membrane root can effectively solve the problem of membrane fiber root fracture and meet the use requirements. And make the end face of the flexible resin cas...

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Abstract

A unit-type external-pressure hollow fibre membrane module used for biological membrane reactor is composed of frame, tree-type membranes, filtered liquid outlet pipe, and air distributing pipe. A single tree-type membrane consists of top and bottom ends, and external-pressure hollow fibre membrane between both ends. Multiple membrane are parallelly connected via water collecting tube to form a tree-type membrane frame. Multiple air distributing pipes are parallelly connected to form an air distributing pipe frame. Both frames are alternatively arranged. Its advantages are high water output, high strength and high resistance to pollution.

Description

technical field [0001] The invention relates to an external pressure submerged hollow fiber membrane module, in particular to a hollow fiber membrane module and a unit membrane module of Co., Ltd. which can be used in membrane bioreactors. Background technique [0002] Membrane Bioreactor (MBR) is the product of the combination of traditional activated sludge method and emerging membrane separation technology. It uses membrane separation components to replace the secondary settling tank in the traditional process, which can not only greatly reduce the floor area , also significantly improved the efficiency of solid-liquid separation, so that the effluent water quality has been significantly improved. [0003] The applicant's utility model patent CN2491096Y discloses an external pressure hollow fiber membrane module, which includes a casing, an upper end, a lower end, and an external pressure hollow fiber membrane filled therein, wherein the hollow fiber membrane at the upper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/02
Inventor 吕晓龙
Owner MEMBRANE SCI & TECH INST TIANJIN POLYTECHNIC UNIV
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