SE0700054L - Process for purifying water with membrane distillation comprising a pretreatment - Google Patents

Process for purifying water with membrane distillation comprising a pretreatment

Info

Publication number
SE0700054L
SE0700054L SE0700054A SE0700054A SE0700054L SE 0700054 L SE0700054 L SE 0700054L SE 0700054 A SE0700054 A SE 0700054A SE 0700054 A SE0700054 A SE 0700054A SE 0700054 L SE0700054 L SE 0700054L
Authority
SE
Sweden
Prior art keywords
membrane
water
pretreatment
membrane distillation
distillation
Prior art date
Application number
SE0700054A
Other languages
Swedish (sv)
Other versions
SE530481C2 (en
Inventor
Aapo Saeaesk
Original Assignee
Scarab Dev Ab
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 Scarab Dev Ab filed Critical Scarab Dev Ab
Priority to SE0700054A priority Critical patent/SE530481C2/en
Priority to PCT/SE2007/051040 priority patent/WO2008085103A1/en
Publication of SE0700054L publication Critical patent/SE0700054L/en
Publication of SE530481C2 publication Critical patent/SE530481C2/en

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
    • B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
    • B01D61/364—Membrane distillation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/447—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by membrane distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/12—Addition of chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/301—Detergents, surfactants

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

A method for cleaning water comprising membrane distillation (1), abbreviated as "MD", which distillation (1) is arranged to use differences in partial pressure with the aid of a hydrophobic membrane through which membrane only clean water (2) in a gaseous state is caused to pass, whereby a water residual (4) that contains an elevated content of contaminants does not pass through the membrane. The invention is characterised in that a pretreatment (5), in which the surface tension of the water is caused to be raised to a level at which the water is prevented from passing the said membrane in its liquid state, is caused to precede the membrane distillation (1).
SE0700054A 2007-01-12 2007-01-12 Process for purifying water with membrane distillation comprising a pretreatment SE530481C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0700054A SE530481C2 (en) 2007-01-12 2007-01-12 Process for purifying water with membrane distillation comprising a pretreatment
PCT/SE2007/051040 WO2008085103A1 (en) 2007-01-12 2007-12-19 Method for purifying water by membrane distillation comprising a pre-treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0700054A SE530481C2 (en) 2007-01-12 2007-01-12 Process for purifying water with membrane distillation comprising a pretreatment

Publications (2)

Publication Number Publication Date
SE0700054L true SE0700054L (en) 2008-06-17
SE530481C2 SE530481C2 (en) 2008-06-17

Family

ID=39494617

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0700054A SE530481C2 (en) 2007-01-12 2007-01-12 Process for purifying water with membrane distillation comprising a pretreatment

Country Status (2)

Country Link
SE (1) SE530481C2 (en)
WO (1) WO2008085103A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102107119B (en) * 2009-12-23 2013-07-31 吕晓龙 Multiple-effect membrane distillation device and method
CN105217705B (en) * 2015-11-06 2017-06-09 河海大学 A kind of PPCPs classes Waste Water Treatment and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460473A (en) * 1981-01-05 1984-07-17 Atlantic Richfield Company Membrane distillation method
JPH07768A (en) * 1993-06-15 1995-01-06 Hitachi Ltd Membrane distillation device

Also Published As

Publication number Publication date
WO2008085103A1 (en) 2008-07-17
SE530481C2 (en) 2008-06-17

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Legal Events

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