Reverse osmosis treatment system for recovering energy generated both at brine and permeate sides during sea water desalination
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United States of America Patent
Stats
-
Jul 26, 2022
Grant Date -
Nov 7, 2019
app pub date -
May 28, 2019
filing date -
Dec 21, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a reverse osmosis treatment system capable of simultaneously and efficiently recovering energy generated both at brine and permeate sides. The system comprises a branched portion configured to divide second to-be-treated water into third and fourth to-be-treated water; a high-pressure pump configured to pressurize the third to-be-treated water thereby to feed fifth to-be-treated water having a higher pressure than the to-be-treated water before divided; a displacement type of first energy recovery device configured to exchange pressures between the fourth to-be-treated water and brine thus separated by a reverse osmosis treatment device, thereby to produce sixth to-be-treated water having a higher pressure than the fourth one; and a second energy recovery device configured to raise a pressure of the third to-be-treated water located at a downstream side of the branched portion with a pressure of first permeate thus separated by the reverse osmosis treatment device.
First Claim
Other Claims data not available
Family
International Classification(s)
- F01L:CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINE....
- F04B:POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F03B:MACHINES OR ENGINES FOR LIQUIDS
- F04F:PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUI....
- F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....
- C02F:TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE....
- B01D:SEPARATION
- 2019 Application Filing Year
- F01L Class
- 342 Applications Filed
- 268 Patents Issued To-Date
- 78.37 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F01L Class
- 0 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jan 26, 2026 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 26, 2030 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 26, 2034 |
