Drinking water filtering system

A filtration system and drinking water technology, applied in water/sewage treatment, adsorption water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problem of ineffective removal of moldy substances and other organic substances, and achieve miniaturization, reduction, Improve cleaning effect and reduce cost

Inactive Publication Date: 2009-03-25
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above-mentioned prior art examples, there is a problem that organic substances such as moldy substances contained in drinking raw water cannot be effectively removed.

Method used

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Embodiment Construction

[0048] Next, an embodiment of the drinking water filtration system of the present invention will be described in detail with reference to the drawings. Fig. 1 is a flow chart representing the composition of the drinking water filtration system of the present invention; figure 2 It shows the state of mutual backwashing between a plurality of hollow fiber filtration membrane modules by the opening and closing operation of the opening and closing valve of the hollow fiber membrane filtration device, figure 2 (a) In the case of external pressure type, figure 2 (b) In the case of an internal pressure type, figure 2 (c) In the case of an impregnated membrane; image 3 It is a diagram showing a configuration provided with an air supply device for supplying air during mutual backwashing between a plurality of hollow fiber filtration membrane modules of the external pressure type.

[0049] In FIG. 1 , reference numeral 1 is a raw water tank for storing drinking raw water (tap water ...

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Abstract

The invention relates to a drink water filtering system which comprises an ozone generator, an active carbon groove, and a hollow filament membrane filtering device. The hollow filament filtering device is provided with hollow filament with average aperture diameter of 0.001 mu m to 1 mu m for filtering the raw drink water, and is positioned at the upstream of the ozone generator or at the downstream of the active carbon groove. The hollow filament membrane filtering device comprises a pair of hollow filament membrane filtering components, wherein a raw water feeding path is connected to the raw water feeding header respectively through a switch valve, a filtered water discharge path is respectively connected with a common filtered water discharge header, the switch valve is disposed on the filtered water discharge header, and the raw water return path is respectively connected to the common raw water return header through the switch valve; the hollow filament filtering device is configured to be a switch operation through a switch valve and can carry out reverse washing between a pair of hollow filament filtering membrane components.

Description

technical field [0001] The present invention relates to a drinking water filtration system, which can be well applied in areas where raw water for drinking contains organic matter such as musty substances, so it cannot be directly drunk in essence, but is temporarily boiled and used for later use. for drinking. Background technique [0002] As a conventional drinking water filtration system, sand filtration, activated carbon, softener (ion exchange resin) and the like are used, and it is composed of NF (nano filter) or RO (reverse osmosis membrane). For example, JP 2006-035004 A (Patent Document 1) discloses a method of obtaining drinking water using sand filtration, activated carbon, microfiltration membrane, and ultrafiltration membrane. [0003] [Patent Document 1] Japanese Unexamined Patent Publication No. 2006-035004 [0004] However, in the above-mentioned prior art examples, there is a problem that organic substances such as moldy substances contained in drinking ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/78C02F1/28C02F1/44
Inventor 扪垣龙男
Owner ASAHI KASEI KK
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