CA2538783A1 - Removal of microorganisms and disinfection byproduct precursors using elemental iron or aluminum - Google Patents

Removal of microorganisms and disinfection byproduct precursors using elemental iron or aluminum Download PDF

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Publication number
CA2538783A1
CA2538783A1 CA002538783A CA2538783A CA2538783A1 CA 2538783 A1 CA2538783 A1 CA 2538783A1 CA 002538783 A CA002538783 A CA 002538783A CA 2538783 A CA2538783 A CA 2538783A CA 2538783 A1 CA2538783 A1 CA 2538783A1
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CA
Canada
Prior art keywords
microorganism
water
removing agent
disinfection
media
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.)
Granted
Application number
CA002538783A
Other languages
French (fr)
Other versions
CA2538783C (en
Inventor
Yan Jin
Pei Chiu
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.)
University of Delaware
Original Assignee
University Of Delaware
Yan Jin
Pei Chiu
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 University Of Delaware, Yan Jin, Pei Chiu filed Critical University Of Delaware
Publication of CA2538783A1 publication Critical patent/CA2538783A1/en
Application granted granted Critical
Publication of CA2538783C publication Critical patent/CA2538783C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • 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
    • C02F1/505—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment by oligodynamic treatment

Abstract

A process for removing microbes and/or DBPs from a media sought to be treated comprising treating said media with one or more elements capable of forming an oxide and/or an oxyhydroxide through corrosion is disclosed. Products are also contemplated.

Claims (17)

1. A process for removing microorganisms and/or disinfection by-product precursors from a media sought to be treated comprising treating said media with one or more elements capable of forming an oxide and/or an oxyhydroxide through corrosion.
2. A process as claimed in claim 1, wherein the media comprises at least one of surface water, drinking water, wastewater, backwash water, groundwater, leachate, other aqueous waste or medical waste.
3. A process according to claim 1, wherein said element comprises at least one of aluminum or iron.
4. A process according to claim 1, wherein said element comprises iron.
5. A process for reducing the use of a chemical disinfectant used to disinfect water comprising treating said water sought to be disinfected with a microorganism-removing agent such that said chemical disinfectant can be decreased and/or eliminated without a negative change in efficacy of said disinfection of said water.
6. A process according to claim 5, wherein said microorganism-removing agent comprises one or more elements capable of forming an oxide and/or an oxyhydroxide through corrosion.
7. A process according to claim 5, wherein said microorganism-removing agent is added to said water prior to application of a chemical disinfectant, irradiation, or filtration.
8. A process to improve the quality of water by decreasing the formation of disinfection by-products during disinfection which comprises treating water with one or more elements capable of forming an oxide and/or an oxyhydroxide through corrosion.
9. A disinfection system capable of being used to reduce microbiological agents in water comprising either a conduit packed with filtration media and at least one microorganism-removing agent, or a container comprising at least one microorganism-removing agent and water.
10. A system according to claim 9 wherein said filtration media comprise at least one of anthracite, sand or gravel.
11. A system according to claim 9, wherein said at least one microorganism-removing agent is selected from the group consisting of elements capable of forming an oxide and/or an oxyhydroxide through corrosion in water.
12. A system according to claim 11, wherein said microorganism-removing agent is in contact with media to be treated for a time of 0.1 minute or more.
13. A disinfection product comprising a conduit, and within said conduit, filtration media and a microorganism-removing agent packed in said conduit wherein said microorganism-removing agent is present in an amount of from 0.1 to 99.9% based on the weight of the filtration media.
14. A product according to claim 13, wherein said filtration media comprises at least one of anthracite, sand or gravel.
15. A product according to claim 13, wherein said microorganism-removing agent comprises one or more agents capable of forming an oxide and/or an oxyhydroxide through corrosion in water.
16. A product according to claim 13, wherein said microorganism-removing agent comprises iron and/or aluminum.
17. A system according to claim 12, wherein said microorganism-removing agent comprises iron and/or aluminum.
CA2538783A 2003-09-15 2004-09-15 Removal of microorganisms and disinfection byproduct precursors using elemental iron or aluminum Expired - Fee Related CA2538783C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50326603P 2003-09-15 2003-09-15
US60/503,266 2003-09-15
PCT/US2004/030025 WO2005028378A1 (en) 2003-09-15 2004-09-15 Removal of microorganisms and disinfection byproduct precursors using elemental iron or aluminum

Publications (2)

Publication Number Publication Date
CA2538783A1 true CA2538783A1 (en) 2005-03-31
CA2538783C CA2538783C (en) 2010-08-10

Family

ID=34375326

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2538783A Expired - Fee Related CA2538783C (en) 2003-09-15 2004-09-15 Removal of microorganisms and disinfection byproduct precursors using elemental iron or aluminum

Country Status (4)

Country Link
US (1) US8114279B2 (en)
EP (1) EP1680364A4 (en)
CA (1) CA2538783C (en)
WO (1) WO2005028378A1 (en)

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USD968640S1 (en) 2018-12-27 2022-11-01 Stryker Corporation Pharmaceutical waste disposal assembly

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
USD968640S1 (en) 2018-12-27 2022-11-01 Stryker Corporation Pharmaceutical waste disposal assembly

Also Published As

Publication number Publication date
US8114279B2 (en) 2012-02-14
CA2538783C (en) 2010-08-10
WO2005028378A1 (en) 2005-03-31
US20060249465A1 (en) 2006-11-09
EP1680364A4 (en) 2009-08-05
EP1680364A1 (en) 2006-07-19

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