Unlock instant, AI-driven research and patent intelligence for your innovation.

Flat film filtering device and flat film filtering method

A filter device and filter method technology, applied in the direction of osmosis/dialysis water/sewage treatment, etc., can solve the problems of impracticality and difficulty in setting rectification plates

Inactive Publication Date: 2012-08-15
HITACHI LTD
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the interval between the membrane elements, that is, the width of the flow path between the membranes is usually several mm to several tens of mm, and it is difficult to install a rectifying plate in such a narrow place.
In addition, when the membrane modules are stacked in multiple layers, the rectifying plates also need to be arranged in multiple layers in the vertical direction according to the membrane modules, which is not practical.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flat film filtering device and flat film filtering method
  • Flat film filtering device and flat film filtering method
  • Flat film filtering device and flat film filtering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] Hereinafter, embodiments of the flat membrane filtration device and the flat membrane filtration method of the present invention will be described in detail with reference to the drawings.

[0059] First, an overall configuration of a treatment system to which the flat membrane filtration device of the present invention can be applied will be described. Image 6 It is a figure which schematically shows the whole processing system of the flat membrane filtration apparatus of this invention. As shown in the figure, the drainage treatment system 50 includes a raw water pipe 52 for introducing sewage or industrial drainage, a raw water pump 54 for introducing drainage, a pre-treatment tank 56, a treatment tank 12 equipped with a flat membrane filter device, and a filter pump 58 for taking out filtered water. as the main basic structure.

[0060] A filter device for removing large solids and impurities contained in the raw water is installed in the pretreatment tank 56 . I...

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
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
Login to View More

Abstract

The prevent invention aims to provide a flat film filtering device which can effectively obtain a film surface cleaning effect and a flat film filtering method. The flat film filtering device (10) of the invention is characterized by comprising the following components: a treatment trough (12) of the treated water; a film module (24) which is obtained through surrounding the side surfaces of a plurality of flat films that are parallelly configured in the treatment trough (12); a gas exhausting mechanism (30) which generates upward flow of the treated water in a flow path among the flat films; and carrier (40) which can flow in the treatment trough through the upward flow and has density that is higher than that of the water.

Description

technical field [0001] The present invention relates to a flat membrane filtration device and a flat membrane filtration method for immersing a membrane unit in a treatment tank filled with treated water such as sewage or industrial drainage to generate upward flow in the tank for solid-liquid separation, thereby taking out filtered water. Background technique [0002] There is a flat-membrane filter that removes impurities contained in sewage or industrial effluent. In the flat membrane filtration device, a plurality of membrane elements are arranged in a state immersed in a treatment tank filled with treated water, and the treated water is sucked and filtered from the inside of a membrane module, which is an aggregate of membrane elements, to obtain filtered water. Each membrane element is installed vertically at predetermined intervals in the treatment tank, and an air diffuser mechanism for air diffuser is provided below. [0003] Examples of the purpose of air diffusio...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/44
Inventor 森田穰和田圭史北村光太郎
Owner HITACHI LTD