WO2000061497A2 - Device for removal of microorganism in water system - Google Patents
Device for removal of microorganism in water system Download PDFInfo
- Publication number
- WO2000061497A2 WO2000061497A2 PCT/IE2000/000043 IE0000043W WO0061497A2 WO 2000061497 A2 WO2000061497 A2 WO 2000061497A2 IE 0000043 W IE0000043 W IE 0000043W WO 0061497 A2 WO0061497 A2 WO 0061497A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- silver
- additive
- coated
- liquid
- carrier
- Prior art date
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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4606—Treatment of water, waste water, or sewage by electrochemical methods for producing oligodynamic substances to disinfect the water
-
- 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
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/4615—Time
Definitions
- the present invention relates to a device and more particularly to a decontamination device for use in a water heating system.
- Contaminants can enter the system when supply pipes are damaged or opened during maintenance. Additionally, while large-scale treatment systems are very effective at removing bacteria, the non-sterile nature of the overall system means that small quantities remain. The amount of contamination can quickly rise to dangerous levels if the water is stationary in the system for an extended period. This is particularly relevant where the water has been heated prior to stagnation, for example, in an immersion heater prior to the inactive period, as bacteria can then develop much more quickly. Irrespective of how the contamination entered the system it is essential that it is removed before consumption as ecoli and in extreme cases legionella which readily develop in such circumstances, are normally fatal if ingested by humans.
- a device for use in a liquid treatment system for removing microorganisms or particulate matter from the liquid having a filter upstream of a dispensing tap wherein the filter incorporates a silver carrier for reacting with and eliminating the microorganisms or particulate matter.
- the filter incorporates a silver carrier for reacting with and eliminating the microorganisms or particulate matter.
- the silver carrier is removable.
- the silver carrier is removable.
- the carrier is provided by ceramic chips having an exterior surface thereof coated with silver.
- the carrier is provided by a plastics material coated with silver.
- the filter is provided as a section of pipe having an interior surface coated in silver.
- the film which results from reactions with the silver, may be removed using a chemical additive during cleaning or cleaned manually.
- the pipe may also optionally include mixing baffles for ensuring that all of the liquid is exposed to the silver.
- an additive for a liquid formed for removing microorganisms such as bacteria from the liquid including an active silver ingredient to react with and kill the bacteria.
- the additive is provided by silver-coated beads or as a sachet of powder.
- a coating for a liquid container having an active silver ingredient to react with and kill bacteria in a liquid.
- a device for use in a domestic water system having a water storage tank incorporating an ioniser provided by a copper electrode and a silver electrode spaced apart within the tank and forming an intermittent electrical circuit through the water.
- the copper electrode is provided by a copper-heating tank.
- a conductive plate supporting a plurality of silver coated chips provides the silver electrode. In this arrangement the supply of available silver can be easily replenished by replacing the chips.
- an electronic controller for managing operation of the electrical circuit.
- the controller operates at a preset frequency.
- the controller has an associated elapse timer for controlling conduction between the electrodes
- the controller incorporates level monitoring means for altering the frequency of delivery of current to the electrodes.
- Fig. 1 is a sectional view of a device in accordance with the invention.
- the device 1 has an insulated cold-water storage tank 2 mounted on a water heater tank 3.
- the water heater tank 3 may be an immersion heater an indirect heater or may use any other suitable method for heating water.
- the cold-water storage tank 2 incorporates an ioniser provided by a set of electrodes 21, 22, made respectively of copper and silver.
- An electronic controller (not shown) sends a minute DC current to the electrodes, which in turn, dispenses copper and silver ions into the water to kill any microorganisms contained therein.
- the controller may operate at a preset frequency or optionally may have an associated elapse timer, which initialises every time the system is used and detects extended periods of inactivity.
- the controller may also include level monitoring inputs for changing the frequency of delivery of current to the electrodes this may also be used to disable the power supply to the water heater tank 3. For example, when the level of water in the cold-water storage tank 2 is detected as being low, the effect of heat rising from the water heater tank 3, on the reduced volume of water is greater, necessitating increased pulses.
- the ioniser may be provided as a drop in unit, with two spaced apart electrodes or as a single silver electrode forming a circuit with a suitably connected copper cylinder. This is particularly useful when the device is supplied as a retrofit unit.
- the silver, copper or both electrodes may be provided by appropriately coated chips mounted on conductive plates or within conductive cages in contact with the water.
- a device for use in a liquid treatment system such as a domestic water system to kill microorganisms such as bacteria, which can develop in the system if left inactive for an extended period. This development is hastened where the water has been heated prior to the period of inactivity.
- the device has a filter, which incorporates a number of ceramic chips coated in silver defining a silver carrier for reacting with and eliminating the microorganisms.
- the filter is mounted in a housing upstream of a tap in such a way as to be easily replaced when spent. Dangerous bacteria are rendered harmless by a relatively simple chemical reaction with the silver as the liquid passes through the filter.
- the carrier is defined by pieces of irregularly shaped plastics chips material coated with silver, which reduces the cost and weight of the filter.
- the invention may also be realised with a section of pipe having an interior surface coated in silver. As water passes through the pipe the bacteria react with the silver to render them harmless. The film, which results from these reactions, may be removed using a chemical additive during cleaning or cleaned manually by inserting an abrasive pipe cleaner.
- the pipe is fitted with mixing baffles arranged around the interior of the pipe to ensure that all of the liquid passing through the pipe is exposed to the silver.
- Another method of realising the current invention is by providing an additive for a water system.
- the additive is formed for removing microorganisms by including an active silver component, which reacts with and kills the bacteria.
- the additive may optionally be delivered as silver-coated beads or as a sachet of powder.
- the invention provide a coating and method for coating a liquid container such that the coating has an active silver ingredient to react with and kill bacteria in a liquid.
- the silver may be delivered to the treatment system in any suitable manner whether using a carrier material or not. It will be understood that the silver may be provided in any of its forms as an oxidising agent. It will also be understood that any stable oxidising metal such as copper or gold may replace the silver.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Filtering Materials (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU38333/00A AU3833300A (en) | 1999-04-12 | 2000-04-12 | A device |
EP00917247A EP1230164A2 (en) | 1999-04-12 | 2000-04-12 | Device for removal of microorganism in a water system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IES990302 | 1999-04-12 | ||
IES990302 IES990302A2 (en) | 1999-04-12 | 1999-04-12 | A device for use in microbiological decontamination of water |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000061497A2 true WO2000061497A2 (en) | 2000-10-19 |
WO2000061497A3 WO2000061497A3 (en) | 2001-04-19 |
Family
ID=11042041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IE2000/000043 WO2000061497A2 (en) | 1999-04-12 | 2000-04-12 | Device for removal of microorganism in water system |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1230164A2 (en) |
AU (1) | AU3833300A (en) |
IE (1) | IES990302A2 (en) |
WO (1) | WO2000061497A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1036083C (en) * | 2008-10-16 | 2010-04-19 | Cooeperatieve Vereniging Easymeasure U A | METHOD AND DEVICE FOR TREATING WATER WITH SILVER. |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3229340A1 (en) * | 1982-08-06 | 1984-02-09 | Gordon 6833 Waghäusel Geissler | Process for producing active filters, preferably for the treatment of potable water |
EP0166022A1 (en) * | 1982-12-24 | 1986-01-02 | Erich Alhäuser | Device for improving the quality of drinking water by ion exchange |
US4800018A (en) * | 1987-03-30 | 1989-01-24 | Moser Ronald T | Portable water purification system |
US5164085A (en) * | 1991-12-09 | 1992-11-17 | N.R.G. Enterprises, Inc. | Water filter cartridge |
US5271837A (en) * | 1992-04-22 | 1993-12-21 | Discepolo Carl G | Drinking water filtration system |
GB2270395A (en) * | 1992-09-02 | 1994-03-09 | Honeywell Control Syst | Water purification system |
US5562824A (en) * | 1994-10-12 | 1996-10-08 | Wtc/Ecomaster Corporation | Gravity water purifier |
WO1997019896A1 (en) * | 1995-11-28 | 1997-06-05 | Austech Limited | Liquid sterilisation apparatus |
WO1998034651A1 (en) * | 1997-02-11 | 1998-08-13 | Glisente Landrini | Distributor of silver ions for sterilizing liquids, especially water and objects |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59147689A (en) * | 1983-02-09 | 1984-08-24 | Hourai Tekkosho:Kk | Apparatus for sterilizing water |
JPH0490886A (en) * | 1990-08-03 | 1992-03-24 | Matsushita Electric Works Ltd | Water sterilizing apparatus |
JPH05245478A (en) * | 1992-03-04 | 1993-09-24 | Hitachi Shinzai Kk | Method and apparatus for treating cooling water of cooling tower |
-
1999
- 1999-04-12 IE IES990302 patent/IES990302A2/en not_active IP Right Cessation
-
2000
- 2000-04-12 WO PCT/IE2000/000043 patent/WO2000061497A2/en not_active Application Discontinuation
- 2000-04-12 AU AU38333/00A patent/AU3833300A/en not_active Abandoned
- 2000-04-12 EP EP00917247A patent/EP1230164A2/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3229340A1 (en) * | 1982-08-06 | 1984-02-09 | Gordon 6833 Waghäusel Geissler | Process for producing active filters, preferably for the treatment of potable water |
EP0166022A1 (en) * | 1982-12-24 | 1986-01-02 | Erich Alhäuser | Device for improving the quality of drinking water by ion exchange |
US4800018A (en) * | 1987-03-30 | 1989-01-24 | Moser Ronald T | Portable water purification system |
US5164085A (en) * | 1991-12-09 | 1992-11-17 | N.R.G. Enterprises, Inc. | Water filter cartridge |
US5271837A (en) * | 1992-04-22 | 1993-12-21 | Discepolo Carl G | Drinking water filtration system |
GB2270395A (en) * | 1992-09-02 | 1994-03-09 | Honeywell Control Syst | Water purification system |
US5562824A (en) * | 1994-10-12 | 1996-10-08 | Wtc/Ecomaster Corporation | Gravity water purifier |
WO1997019896A1 (en) * | 1995-11-28 | 1997-06-05 | Austech Limited | Liquid sterilisation apparatus |
WO1998034651A1 (en) * | 1997-02-11 | 1998-08-13 | Glisente Landrini | Distributor of silver ions for sterilizing liquids, especially water and objects |
Non-Patent Citations (3)
Title |
---|
DATABASE WPI Section Ch, Week 199218 Derwent Publications Ltd., London, GB; Class D15, AN 1992-147911 XP002148795 & JP 04 090886 A (MATSUSHITA ELECTRIC WORKS LTD), 24 March 1992 (1992-03-24) * |
PATENT ABSTRACTS OF JAPAN vol. 008, no. 279 (C-257), 20 December 1984 (1984-12-20) & JP 59 147689 A (HOURAI TEKKOSHO:KK), 24 August 1984 (1984-08-24) * |
PATENT ABSTRACTS OF JAPAN vol. 018, no. 001 (C-1148), 6 January 1994 (1994-01-06) & JP 05 245478 A (HITACHI SHINZAI KK;OTHERS: 01), 24 September 1993 (1993-09-24) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1036083C (en) * | 2008-10-16 | 2010-04-19 | Cooeperatieve Vereniging Easymeasure U A | METHOD AND DEVICE FOR TREATING WATER WITH SILVER. |
Also Published As
Publication number | Publication date |
---|---|
WO2000061497A3 (en) | 2001-04-19 |
AU3833300A (en) | 2000-11-14 |
EP1230164A2 (en) | 2002-08-14 |
IES990302A2 (en) | 2000-12-13 |
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