JP2013094762A5

JP2013094762A5 -

Info

Publication number: JP2013094762A5
Application number: JP2011242480A
Authority: JP
Filing date: 2011-11-04
Publication date: 2013-08-29
Anticipated expiration: 2031-11-04

Claims

A water purifier arranged at the inlet of raw water sourced from well water or the like to one or a plurality of buildings, purifies the introduced raw water and supplies it to a plurality of water use devices,
A first purification section disposed downstream of the water intake section;
Via the second purification unit arranged downstream of this first purification unit,
While having a domestic water system connected to the downstream side,
A drinking water system that branches off from the domestic water system downstream of the second purification unit and is connected to the downstream side via the third purification unit;
The first purification unit comprises at least one of activated carbon, an ion exchange filter, a sand filter, and a nucleation unit filter,
The second purification unit includes a UF membrane and / or an MF membrane,
The third purification unit includes an RO membrane and / or an NF membrane ,
A water purification apparatus comprising a water receiving tank capable of storing water between the second purification unit of the domestic water system and a branch point between the domestic water system and the drinking water system .

A water purifier arranged at the inlet of raw water sourced from well water or the like to one or a plurality of buildings, purifies the introduced raw water and supplies it to a plurality of water use devices,
A first purification section disposed downstream of the water intake section;
Via the second purification unit arranged downstream of this first purification unit,
While having a domestic water system connected to the downstream side,
A drinking water system that branches off from the domestic water system downstream of the second purification unit and is connected to the downstream side via the third purification unit;
The first purification unit comprises a purification material that removes at least one of the mold odor, calcium, impurities that clog the second purification unit and / or the third purification unit,
The second purification unit includes a purification material that removes at least one of bacteria and protozoa,
The third purification unit comprises a purification material having a higher salt removal rate than the purification material of the first purification unit and the second purification unit ,
A water purification apparatus comprising a water receiving tank capable of storing water between the second purification unit of the domestic water system and a branch point between the domestic water system and the drinking water system .

The water purifier according to claim 1 or 2 , wherein a chlorine addition unit for adding chlorine to water is provided in a path of the domestic water system and / or the drinking water system.

While having the water purifier according to any one of claims 1 to 3 ,
The domestic water system is connected to one or more water purification equipment used for purposes other than drinking water downstream,
The drinking water system is connected to one or more drinking water use devices that use water for drinking on the downstream side.

While having the water purifier described in claim 3 ,
The domestic water system is connected to one or more water purification equipment used for purposes other than drinking water downstream,
The drinking water system is connected to one or more drinking water use devices that use water for drinking on the downstream side,
5. The water purification system according to claim 4 , wherein the water purifying device and / or the potable water using device is provided with a chlorine removing device having a purifying material for removing chlorine from the passing water.

The water purification apparatus according to claim 1 or 2, wherein the first purification section includes a nucleation unit filter using a ferric hydroxide colloid solution as a nucleating agent.

The first purification section includes a filter for removing flocs aggregated by the nucleating agent and adding a nucleating agent to water, and a nucleating unit filter for removing flocs by the filter. The water purifier according to claim 1, 2, or 6.

The first purification section comprises a nucleation unit filter that adds a nucleating agent to water, precipitates aggregated floc, and supplies supernatant water downstream. The water purifier in any one of 6.

The first purification section includes a nucleation unit filter that adds a nucleating agent to water to generate floc, and the floc is removed by a purifying material of the second purification section. The water purifier according to any one of 1, 2, or 6.

The first purification unit includes a nucleating agent tank that stores a nucleating agent, a metering pump that administers the nucleating agent from the nucleating agent tank to water, and a filter that removes flocs aggregated by the nucleating agent. The water purifier according to claim 1, comprising a nucleation unit filter having the following.

The water purifier according to claim 7 or 10, wherein a part of the water is allowed to flow downstream while flowing water parallel to the surface of the filter.

Connected to the upstream side of the purification material of the third purification section is a drain pipe for extracting and discarding concentrated water, and a dilution water pipe that joins the drain pipe from the water receiving tank is provided and supplied from the water receiving tank. The water purifier according to claim 1 or 2, wherein the concentrated water can be diluted with water.

4. The water purifier according to claim 3, wherein the chlorine addition section is provided in the domestic water system, and the chlorine addition section is provided in the drinking water system.