Membrane element, membrane block, and membrane separation system

A membrane element and branching technology, which is applied in the field of membrane blocks, membrane separation systems and membrane elements, can solve the problems of filter membrane clogging times, uneven pressure loss of filter membrane, and increased burden of air diffuser, etc., and achieve uniform pressure loss Effect

Inactive Publication Date: 2014-03-26
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there are problems such as non-uniform pressure loss on the filter membrane, concentrated filtration using a part of the filter membrane, increase in the number of clogging of the filter membrane, and an increase in the burden on the diffuser.

Method used

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  • Membrane element, membrane block, and membrane separation system
  • Membrane element, membrane block, and membrane separation system
  • Membrane element, membrane block, and membrane separation system

Examples

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Embodiment Construction

[0038] Hereinafter, the present invention will be specifically described using the illustrated embodiments. However, unless otherwise specified, the components, types, combinations, shapes, and relative arrangements thereof described in this embodiment do not limit the scope of the present invention thereto, but are merely examples for illustration. In addition, in the drawings and the description below, it is assumed that the X axis (horizontal direction), the Y axis (horizontal direction), and the Z axis (vertical direction) are perpendicular to each other.

[0039] figure 2A block diagram showing the membrane separation system of this embodiment. The membrane separation system 100 of the present embodiment has a structure including: an anaerobic tank 104 in which raw water is supplied by a raw water pump 102 and phosphorus is temporarily released from activated sludge; and an anaerobic tank 106 in which denitrification reaction of raw water is performed. and a reaction t...

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Abstract

The invention provides a membrane element, a membrane block, and a membrane separation system, which achieve the effect that water to be filtered can be filtered uniformly via a filtering membrane no matter how high or low the specific resistance of the filtering membrane is. The membrane element (10) comprises a supporting mechanism (frame (14)) supporting the filtering membrane (12) which filters water to be processed and then generates filtered processed water and being provided with a space for accommodating the filtered processed water; multiple branch distribution pipes (28) arranged by extending from the supporting mechanism and used for allowing the filtered processed water to flow out; and a general distribution pipe (30) which connected in a state of being provided with the multiple branch distribution pipes (28) and is equipped with a water collection port (32) capable of enabling the filtered processed water flowed therein from the multiple branch distribution pipes (28) to flow to the outside. The membrane element (10) is characterized in that the physical shape in the general distribution pipe (30) can be changed so as to make the pressure losses from the multiple branch distribution pipes (28) to the water collection port (32) be identical to each other.

Description

technical field [0001] The invention relates to a membrane element, a membrane block and a membrane separation system for solid-liquid separation, in particular to a membrane element, a membrane block and a membrane separation system used in the treatment of membrane separation activated sludge such as organic wastewater. Background technique [0002] At present, the activated sludge membrane separation system (Membrane Bio Reactor System, Membrane Bioreactor System) equipped with membrane modules is used in the treatment of organic wastewater and other membrane separation activated sludge. This system is a system in which a membrane block for solid-liquid separation is arranged inside a reaction tank, and an air diffuser is arranged under the membrane block. Here, a membrane block refers to vertically arranging a plurality of membrane elements side by side with a certain interval and housing them in a casing, so that the plurality of membrane elements are integrated. In th...

Claims

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Application Information

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IPC IPC(8): B01D63/00C02F3/12C02F1/44
CPCY02W10/10B01D63/082B01D65/003C02F3/1273B01D2313/06B01D2313/12B01D2311/16
Inventor 渡部雅智森田穣佐佐木晓
Owner HITACHI LTD
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