JPS5653788A - Fresh water making method from sea water - Google Patents

Fresh water making method from sea water

Info

Publication number
JPS5653788A
JPS5653788A JP12867879A JP12867879A JPS5653788A JP S5653788 A JPS5653788 A JP S5653788A JP 12867879 A JP12867879 A JP 12867879A JP 12867879 A JP12867879 A JP 12867879A JP S5653788 A JPS5653788 A JP S5653788A
Authority
JP
Japan
Prior art keywords
sea water
tank
water
sea
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12867879A
Other languages
Japanese (ja)
Inventor
Isamu Watanabe
Hiroyuki Ide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP12867879A priority Critical patent/JPS5653788A/en
Publication of JPS5653788A publication Critical patent/JPS5653788A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10—Accessories; Auxiliary operations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To perform fresh water making from sea water simply at a low cost, by providing a filtrating mechanism for sea water by the difference between the internal pressure of a pressure resistant intake tank for sea water and the outer pressure by utilizing reverse osmosis. CONSTITUTION:A pressure resistant sea water intake tank 1 is equipped with a semipermeable membrane unit and a vent line 3. The top end of the vent line 3 opens above the sea surface 4. The semipermeable membrane unit is continued through cylindrical semipermeable membranes 5 and a diaphragm 8 installed in the housing 7 to the tank 1. The housing 7 is continued to a water pipe 9, through which sea water is fed into the housing 7 through a filter 11 by a pump 10. In addition a hole 13 through which sea water flows is made. When the intake tank 1 is immersed to a prescribed depth (about 300-500m) under the sea surface, about 30-50kg/cm<2> pressure difference is produced between the inside and the outside of the intake tank 1, so that the sea water permeates through the semipermeable membrane to enter the tank 1, hereby fresh water is produced. Use of the pump 10 allows to decrease the depth of the tank 1.
JP12867879A 1979-10-05 1979-10-05 Fresh water making method from sea water Pending JPS5653788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12867879A JPS5653788A (en) 1979-10-05 1979-10-05 Fresh water making method from sea water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12867879A JPS5653788A (en) 1979-10-05 1979-10-05 Fresh water making method from sea water

Publications (1)

Publication Number Publication Date
JPS5653788A true JPS5653788A (en) 1981-05-13

Family

ID=14990731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12867879A Pending JPS5653788A (en) 1979-10-05 1979-10-05 Fresh water making method from sea water

Country Status (1)

Country Link
JP (1) JPS5653788A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999006323A1 (en) * 1997-07-29 1999-02-11 Francesco Maria Piccari Method and plant for desalting seawater exploiting hydrostatic pressure
EP0968755A3 (en) * 1998-05-25 2000-09-20 Wip Kg Hydrostatic pressure plant for separation/concentration/desalination of liquids, in particular sea or brackish water, via reverse osmosis
KR20010088963A (en) * 2001-07-18 2001-09-29 이재평 Nothing power seawater convert equipment of freshwater and method of make freshwater
JP2013240776A (en) * 2012-05-21 2013-12-05 Isao Kato Apparatus for collecting fresh water from seawater
JP2023516771A (en) * 2020-03-11 2023-04-20 ウォータライズ アクシェセルスカープ Subsea desalination system for shallow water

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999006323A1 (en) * 1997-07-29 1999-02-11 Francesco Maria Piccari Method and plant for desalting seawater exploiting hydrostatic pressure
EP0968755A3 (en) * 1998-05-25 2000-09-20 Wip Kg Hydrostatic pressure plant for separation/concentration/desalination of liquids, in particular sea or brackish water, via reverse osmosis
KR20010088963A (en) * 2001-07-18 2001-09-29 이재평 Nothing power seawater convert equipment of freshwater and method of make freshwater
JP2013240776A (en) * 2012-05-21 2013-12-05 Isao Kato Apparatus for collecting fresh water from seawater
JP2023516771A (en) * 2020-03-11 2023-04-20 ウォータライズ アクシェセルスカープ Subsea desalination system for shallow water

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