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Water processing device

A water treatment device, raw water technology, used in seawater treatment, water/sewage treatment, adsorbed water/sewage treatment, etc.

Inactive Publication Date: 2013-06-19
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the water treatment apparatus using this conventional reverse osmosis membrane, the concentrated water separated by the reverse osmosis membrane is discarded.

Method used

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no. 1 Embodiment approach

[0016] The water treatment device 1 of the present embodiment includes a reverse osmosis membrane device 2 and a purification unit 4. The reverse osmosis membrane device 2 is used to separate water containing salt such as seawater into purified water (permeated water) and impurities (salt such as NaCl). ), the purification unit 4 is provided with an ion exchange resin layer (ion capture unit) 3 that captures ions in the raw water by bringing the raw water into contact with the ion exchange resin 3a.

[0017] In this embodiment, as the reverse osmosis membrane device 2 , a known structure in which a reverse osmosis membrane is provided inside is used. As the reverse osmosis membrane, generally known RO membrane (Reverse Osmosis Menbrane), NF membrane (Nanofiltration Membrane) called nanofiltration membrane (Nanofilter), etc. can be used. In addition, the reverse osmosis membrane is not limited to the RO membrane and the NF membrane as long as it has the property of permeating w...

no. 2 Embodiment approach

[0037] 1A of water treatment apparatuses of this embodiment is provided with the reverse osmosis membrane apparatus 2, the raw water storage tank 5, and the purification part 4 which accommodated the ion exchange resin layer 3 and the activated carbon layer 6 similarly to the said 1st embodiment. In addition, the operations of the on-off valves V1 and V3 and the three-way valves V2 and V4 are also the same as those in the first embodiment described above.

[0038] Here, the main difference between the water treatment device 1A of the present embodiment and the water treatment device 1 of the above-mentioned first embodiment is that the water treatment device 1A of the present embodiment directly heats the activated carbon layer (filter part) 6 by the heating part 7A. . That is, although the heating unit 7A is constituted by an electric heater or the like in the same manner as in the above-mentioned first embodiment, the heating unit 7A is not provided at the piping P6, but is ...

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Abstract

A water processing device (1) includes a purification unit (4) in which an ion trap unit (3) is provided that traps ions in raw water by making the raw water contact an ion-exchange resin (3a). In the water processing device (1), the ion-exchange resin (3a) in the purification unit (4) is recovered from the condensed water that is separated by a reverse osmosis membrane device (2).

Description

technical field [0001] The invention relates to a water treatment device. Background technique [0002] Conventionally, as a water treatment device, a device that filters raw water using a reverse osmosis membrane is known (for example, refer to Patent Document 1). [0003] In this Patent Document 1, water treatment is carried out by passing tap water through a sediment filter, passing the tap water through a first adsorption filter and a reverse osmosis membrane filter, and then passing the water through the tank. After solidification, it was passed through the second adsorption filter and ceramic filter. [0004] Patent Document 1: Japanese Patent No. 4040077 [0005] The problem to be solved by the invention [0006] However, in the water treatment apparatus using this conventional reverse osmosis membrane, the concentrated water separated by the reverse osmosis membrane is discarded. Contents of the invention [0007] Therefore, an object of the present invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/42B01D61/02B01J49/00C02F1/28C02F1/44
CPCB01D2311/06B01J49/00B01D2311/08C02F2303/16C02F1/42B01D61/025C02F1/283C02F2103/08C02F1/441C02F9/00Y02A20/131
Inventor 小早川和也
Owner PANASONIC CORP
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