Water treatment method and water treatment apparatus
US-2024383788-A1 · Nov 21, 2024 · US
Water treatment system
US2016346735A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016346735-A1 |
| Application number | US-201615164990-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 26, 2016 |
| Priority date | May 29, 2015 |
| Publication date | Dec 1, 2016 |
| Grant date | — |
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Abstract
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Provided is a seawater desalination system including reverse osmosis membrane modules each including: a reverse osmosis membrane; and a pressure vessel installing the reverse osmosis membrane, and configured to obtain permeated water and concentrated water using the reverse osmosis membranes housed in the reverse osmosis membrane modules by supplying seawater to the reverse osmosis membrane modules. The seawater desalination system includes a module group including the reverse osmosis membrane modules connected together in parallel. The seawater is supplied to each of the reverse osmosis membrane modules by being supplied to the module group through first and second seawater supply routes. The first and second seawater supply routes are each provided with a liquid transport pump configured to supply the seawater flowing through the seawater supply route to the module group.
First claim
Opening claim text (preview).
1 . A water treatment system comprising: reverse osmosis membrane modules each including a reverse osmosis membrane and a pressure vessel installing the reverse osmosis membrane, the water treatment system configured to obtain permeated water and concentrated water using the reverse osmosis membranes housed in the reverse osmosis membrane modules by supplying raw water to the reverse osmosis membrane modules; and a module group including the reverse osmosis membrane modules connected together in parallel, wherein the raw water is supplied to each of the reverse osmosis membrane modules by being supplied to the module group through a plurality of raw water passages, and the raw water passages are each provided with a liquid transport pump configured to supply the raw water flowing through the raw water passage to the module group. 2 . The water treatment system according to claim 1 , wherein at least one of the raw water passages includes an energy recovery device provided in the middle of the raw water passage, and configured to be supplied with the concentrated water discharged from the module group, the energy recovery device gives pressure energy of the concentrated water to the raw water supplied to the energy recovery device, and the raw water to which the pressure energy is given in the energy recovery device is supplied to the module group after pressure of the raw water is raised by the liquid transport pump. 3 . The water treatment system according to claim 1 , wherein the reverse osmosis membrane modules included in the module group are connected together in parallel by a connection flow passage through which the raw water flows, and one of the connection flow passages is disconnected. 4 . The water treatment system according to claim 1 , wherein the concentrated water in the module group is discharged from the module group through a plurality of flow passages. 5 . The water treatment system according to claim 2 , wherein the reverse osmosis membrane modules included in the module group are connected together in parallel by a connection flow passage through which the raw water flows, and one of the connection flow passages is disconnected. 6 . The water treatment system according to claim 2 , wherein the concentrated water in the module group is discharged from the module group through a plurality of flow passages. 7 . The water treatment system according to claim 3 , wherein the concentrated water in the module group is discharged from the module group through a plurality of flow passages. 8 . The water treatment system according to claim 5 , wherein the concentrated water in the module group is discharged from the module group through a plurality of flow passages.
Assignees
Inventors
Classifications
Seawater, e.g. for desalination · CPC title
Energy recovery means · CPC title
Energy recovery · CPC title
Accessories; Auxiliary operations · CPC title
Energy recovery · CPC title
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Frequently asked questions
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- What does patent US2016346735A1 cover?
- Provided is a seawater desalination system including reverse osmosis membrane modules each including: a reverse osmosis membrane; and a pressure vessel installing the reverse osmosis membrane, and configured to obtain permeated water and concentrated water using the reverse osmosis membranes housed in the reverse osmosis membrane modules by supplying seawater to the reverse osmosis membrane mod…
- Who is the assignee on this patent?
- Hitachi Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01D61/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Dec 01 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).