WO2015124895A1 - Système d'alimentation en eau purifiée - Google Patents

Système d'alimentation en eau purifiée Download PDF

Info

Publication number
WO2015124895A1
WO2015124895A1 PCT/GB2015/000060 GB2015000060W WO2015124895A1 WO 2015124895 A1 WO2015124895 A1 WO 2015124895A1 GB 2015000060 W GB2015000060 W GB 2015000060W WO 2015124895 A1 WO2015124895 A1 WO 2015124895A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
bag
container
water
purified water
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.)
Ceased
Application number
PCT/GB2015/000060
Other languages
English (en)
Inventor
Jon Grant
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.)
BW Technologies Ltd Canada
Original Assignee
BW Technologies Ltd Canada
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 BW Technologies Ltd Canada filed Critical BW Technologies Ltd Canada
Publication of WO2015124895A1 publication Critical patent/WO2015124895A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/002—Processes for the treatment of water whereby the filtration technique is of importance using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/003—Coaxial constructions, e.g. a cartridge located coaxially within another
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/04—Surfactants, used as part of a formulation or alone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices

Definitions

  • the present invention relates to a purified water supply system. More especially the invention relates to a portable supply system for purified water.
  • Such systems generally comprises a water container, such as a plastic container or bag, which has an outlet leading to a purification device through which water within the container exits prior to being available as drinking water to the consumer.
  • One aim of the present invention is to provide a portable purified water supply system including a pre-filter within the water container.
  • Portable purified water supply systems for use on a commercial scale within disaster zones or war-torn countries must be compactable to a minimal size for storage and transportation to the desired location. Consequently the water container of choice is preferably a bag structure which, by its nature, can be folded to a minimal size when empty. Any form of pre-filter therefore must not be complex and must fold with the bag in which it is located.
  • pre- filter it is important that the presence of a pre- filter must be suitable for continued, often extensive, use and not hinder or otherwise reduce the speed at which the water travels through the system to be available for the consumer. Consequently it is preferable that the pre- filter forms a pointed tip when unfolded to accelerate the water flow through the pre-filter to the purification device .
  • a purified water supply system comprising a water container having an outlet leading to a purification device through which water within the container flows prior to being made available the consumer, the container having a foldable bag structure and having therein a filter sleeve which is foldable with the bag whereby the filter forms a pointed tip when unfolded.
  • the filter extends across the entire width of the container.
  • the filter is made from a polymer fibre material.
  • the filter is made from polypropylene .
  • the filter has, or is treated with, a surfactant .
  • Figure 1 is a schematic view of a filter for use in a purified water supply system constructed in accordance with the present invention
  • Figure 2 is a schematic view of the filter of figure 1 in a folded position when not in use.
  • Figure 3 is a schematic illustration of a purified water system.
  • Figure 1 shows a pre-filter 1 for use with a purified water supply system.
  • the filter 1 sits within an outer bag 2 (see figure 3) which, in use, contains the water for purification.
  • the filter 1 is secured to the inner sides of the bag 2 through connecting tabs 3.
  • the opening edge of filter 1 may be stitched along each side of the inner surface of the bag 2 near to its opening.
  • the filter 1 is generally rectangular in shape and extends across the bag opening along the width of the bag 2 to ensure that all water that is poured into the bag opening is captured first within the pre-filter 1 before entering the rest of the bag containment area 7 directly below the filter 1.
  • the filter 1 only extends across the opening in a middle part of the bag 2 and may, for example, be cone shaped.
  • a funnel may be used to direct water into the filter before it enters the rest of the bag.
  • the filter is made from a polymer fibre material such as polypropylene. This paper-like material is malleable and foldable but also has sufficient strength for continued use without disintegration, which would be the case with paper filters of this nature, commonly designed for single use in coffee machines and the like.
  • the polymer fibre chosen for the filter 1 must be food grade .
  • One problem with using polymer fibre material is the material' s inherent hydrophobic property in its natural state. Consequently the flowrate of the water through the filter is impeded and drastically reduced.
  • the Applicant has found that the flowrate through the filter 1 can be greatly enhanced by first dipping the filter into a surfactant.
  • a suitable surfactant found to provide this affect is one commonly referred to as "Washing Up liquid" .
  • the filter 1 is formed with a delivery end which, when unfolded, forms a downwardly pointing tip 4.
  • a series of folds 5 in one end 6 of the filter 1 provide the tip formation 4 when the filter is opened, which automatically occurs when bag 2 is opened for filling.
  • the filter 1 is naturally creased or folded along its longitudinal axis, and along the fold lines 5 when the opening of the bag 2 is closed flat.
  • the filter 1 When the bag 2, and hence the filter 1 are opened, the filter 1 effectively provides an inner sleeve for water entering the bag 2 to initially be collected before being directed through the tip 4 of the filter 1 and further to the main bag 7 containment area below.
  • An outlet 8 is provided at the bottom of the bag 2 which is connected through a tube 9 to a purification device 10.
  • the water is largely free of physical contaminants (that are trapped in the pre-filter 1) and, as such, the purification device is less likely to become clogged or blocked thereby increasing the working life of the purification device.
  • the purification device 10 Once purified the water leaves the purification device 10 through a second tube 11 to a final outlet for delivery to the consumer.
  • the periphery of the opening of the bag 2 is provided with a belt or tie 12 with clips 13 at each end to allow the bag 2 to be hung up (for example from a post or tree) so that the water is fed through the system through gravity.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Packages (AREA)

Abstract

L'invention concerne un système d'alimentation en eau purifiée comprenant un contenant d'eau (2) ayant un orifice de sortie (8) menant à un dispositif de purification (10) dans lequel l'eau contenue dans le contenant (2) circule avant d'être mise à la disposition du consommateur, le contenant (2) présentant une structure de sac pliable et ayant à l'intérieur de celui-ci un manchon filtrant (1) qui peut être plié avec le sac.
PCT/GB2015/000060 2014-02-18 2015-02-18 Système d'alimentation en eau purifiée Ceased WO2015124895A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1402867.4 2014-02-18
GB1402867.4A GB2525158A (en) 2014-02-18 2014-02-18 Purified water supply system

Publications (1)

Publication Number Publication Date
WO2015124895A1 true WO2015124895A1 (fr) 2015-08-27

Family

ID=50440355

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2015/000060 Ceased WO2015124895A1 (fr) 2014-02-18 2015-02-18 Système d'alimentation en eau purifiée

Country Status (2)

Country Link
GB (1) GB2525158A (fr)
WO (1) WO2015124895A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744639A (en) * 1971-03-16 1973-07-10 J Welsh Portable water purifier
FR2804881A1 (fr) * 2000-02-16 2001-08-17 Georges Fournier Dispositif d'epuration de liquides
US20040040899A1 (en) * 2002-08-28 2004-03-04 Shuenn Der Shing Industry Co., Ltd. Easily collapsible and portable water filtering device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB693601A (fr) *
US3224586A (en) * 1961-11-14 1965-12-21 Kenneth L Wade Bag assemblage
US3568846A (en) * 1968-04-29 1971-03-09 Ethyl Corp Plastic filter media
WO2008075976A1 (fr) * 2006-12-18 2008-06-26 Russell Henry Kelly Système de filtrage
CA2806078C (fr) * 2010-07-23 2016-09-13 R. Thomas Ii Hawkins Purification photochimique des liquides activee par l'energie solaire
US8889005B2 (en) * 2012-05-31 2014-11-18 Push Enterprise Co., Ltd Water filtering device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744639A (en) * 1971-03-16 1973-07-10 J Welsh Portable water purifier
FR2804881A1 (fr) * 2000-02-16 2001-08-17 Georges Fournier Dispositif d'epuration de liquides
US20040040899A1 (en) * 2002-08-28 2004-03-04 Shuenn Der Shing Industry Co., Ltd. Easily collapsible and portable water filtering device

Also Published As

Publication number Publication date
GB2525158A (en) 2015-10-21
GB201402867D0 (en) 2014-04-02

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