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WO2001030707A1 - Dispositif et procede de traitement de flux de dechets d'origine dentaire - Google Patents

Dispositif et procede de traitement de flux de dechets d'origine dentaire Download PDF

Info

Publication number
WO2001030707A1
WO2001030707A1 PCT/US2000/029832 US0029832W WO0130707A1 WO 2001030707 A1 WO2001030707 A1 WO 2001030707A1 US 0029832 W US0029832 W US 0029832W WO 0130707 A1 WO0130707 A1 WO 0130707A1
Authority
WO
WIPO (PCT)
Prior art keywords
stream
contaminant
unit
resin
contaminated
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/US2000/029832
Other languages
English (en)
Inventor
James B. Cannon
Ted M. Shields
Jonathan E. Scherer
E. Boyd OWEN
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.)
SolmeteX Inc
Original Assignee
SolmeteX Inc
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 SolmeteX Inc filed Critical SolmeteX Inc
Priority to CA002356902A priority Critical patent/CA2356902A1/fr
Priority to AU12451/01A priority patent/AU1245101A/en
Publication of WO2001030707A1 publication Critical patent/WO2001030707A1/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
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/06—Saliva removers; Accessories therefor
    • A61C17/065—Saliva removers; Accessories therefor characterised by provisions for processing the collected matter, e.g. for separating solids or air
    • 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
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • 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

Definitions

  • the invention is a method and device for the removal of debris
  • Aqueous dental waste streams contain dental amalgam, saliva,
  • Dental amalgam which generally is a mixture of silver (34.5 %)
  • Pieces of amalgam are suctioned by the dentist from the patient's mouth and
  • traps usually 40 mesh mechanical filters, physically trap and
  • amalgam such as mercury
  • typical dental operatory which is generally small and may include one or more
  • the invention provides a single stage unit which provides a dual
  • the invention contemplates the combination of
  • Waste is introduced directly for mechanical and chemical purification without
  • a screen mechanically retains particulates and/or
  • the invention incorporates an air/water separation chamber, a
  • the invention is readily connected to an existing waste
  • the invention is sufficiently compact to fit in a dental office's
  • the invention provides dentists with a cost-effective, single waste
  • solubilized metals such as mercury as well as other contaminants
  • the apparatus and materials of construction are robust to vacuum pressure
  • the invention thus lowers toxic metal ion concentrations in dental
  • FIG. 1 is an exploded view of a trap apparatus currently used in
  • FIG. 2 is as axial cross sectional view of an assembled trap
  • FIG. 3 is a perspective view of a screen containing a contaminant
  • FIG. 4 is a front view partially in cross section of an alternative
  • FIG. 5 is a schematic cross sectional view of an alternative
  • FIG. 6 is another alternative embodiment of the invention.
  • the inventive device is designed to fit into an
  • Contaminants include, but are not limited to, amalgam components, biological
  • the device is intended to:
  • the device either augments or
  • a dental waste stream 30 flows
  • the screen 1 4 is located within a container 1 0.
  • a gasket 1 8 is
  • the trap head 22 has a fitting
  • a threaded cap 39 (shown in phantom in FIG. 1 ) for
  • container 10 is capable of hermetically sealing the container 10 once it has
  • a contaminant binding resin contained in a standard trap is modified to include a contaminant binding resin
  • the resin 34 is a metal binding resin, particularly a mercury absorbing
  • Duolite GT-73 (Rohm and Haas,
  • the resin 34 may be contained in a device, such as a rectangular
  • the bag 32 a resin-containing device may be sized
  • binding resin 34 directly into a molded, porous (foam-like or related) cup 36 that is sized and shaped to fit into the container 1 0 of the trap 31 , as shown
  • the cup 36 contains about 80 grams of resin 34 and fits in the trap
  • the trap 31 may be porous or permeable, and may be disposable
  • embodiment may also contain a powder, fiber, glass or a related substrate
  • the trap 31 may also contain
  • a sanitizing or oxidizing material 40 such as an iodated resin.
  • FIG. 5 a separate three phase contaminant-removing system is disclosed.
  • the waste flow 30 initially enters an air/liquid separation
  • the air/liquid separator chamber 50 is of
  • Air is removed through a port 56 at the top of the air/liquid
  • Liquid waste flow 30 continues through an opening
  • separation chamber 50 may be coated with a hydrophobic or oleophobic
  • the settlement chamber 58 is located below, preferably directly
  • the air/liquid separation chamber 50 It is sufficiently large to allow enough residence time for the particulate matter 61 in the waste flow 30 to
  • the clarified liquid 64 free of large particulates and sedimenting
  • the resin 34 is contained in a contaminant binding resin 34.
  • interstitial spaces of the porous molded resin insert or cup 78 may be small
  • the insert may be porous or permeable, and may be disposable or reusable.
  • the insert 70 may also be any other suitable material such as mercury, from dental waste streams 30.
  • the insert 70 may also be any other suitable material, such as mercury, from dental waste streams 30.
  • the insert 70 may also be any suitable material, such as mercury, from dental waste streams 30.
  • the insert 70 may also be any suitable material, such as mercury, from dental waste streams 30.
  • the insert 70 may also be any suitable material, such as mercury, from dental waste streams 30.
  • the insert 70 may also contain a carbon based adsorbent or related material.
  • the insert 70 may also contain a carbon based adsorbent or related material.
  • the insert 70 may also contain a carbon based adsorbent or related material.
  • a sanitizing or oxidizing material such as an iodated resin 40.
  • iodated resin 40 provides micr ⁇ bial control for increased safety and
  • the insert 70 entraps particulate matter and acts as a mechanical
  • One embodiment of the insert 70 incorporates an inert binder such as
  • insert 72 Another embodiment of the insert 70 incorporates a porous
  • container or vehicle which may be, for example, a heat sealed flexible screen
  • the trap 31 or insert 70 or sedimentation cartridge 54 may be any suitable trap 31 or insert 70 or sedimentation cartridge 54.
  • Table 1 shows the test results of a typical dental waste stream
  • the inventive trap is effective
  • Table 2 shows the test results of a soluble mercury stream with

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Veterinary Medicine (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Cette invention a trait à un dispositif et au procédé permettant de décontaminer en toute sécurité, efficacement et facilement des flux de déchets, notamment des flux de déchets d'origine dentaire. Le flux contaminé (30), pouvant notamment renfermer des métaux toxiques tels que du mercure, entre en contact avec l'unité selon cette invention (31, 70) qui filtre les contaminants à la fois physiquement et chimiquement en une seule opération. Cette unité (31, 70) contient une résine fixant le contaminant (34) et un filtre mécanique (14) permettant d'extraire les formes solubles et insolubles du contaminant. Ce dispositif et le procédé correspondant permettent de ramener les contaminants à un taux satisfaisant aux exigences de l'agence de régulation en matière de métaux toxiques. Ils permettent également de procéder à une manipulation et à un transport sûrs de l'unité contaminée (31, 70).
PCT/US2000/029832 1999-10-28 2000-10-30 Dispositif et procede de traitement de flux de dechets d'origine dentaire Ceased WO2001030707A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002356902A CA2356902A1 (fr) 1999-10-28 2000-10-30 Dispositif et procede de traitement de flux de dechets d'origine dentaire
AU12451/01A AU1245101A (en) 1999-10-28 2000-10-30 Device and method for treating dental waste streams

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16203199P 1999-10-28 1999-10-28
US60/162,031 1999-10-28
US69784500A 2000-10-27 2000-10-27
US09/697,845 2000-10-27

Publications (1)

Publication Number Publication Date
WO2001030707A1 true WO2001030707A1 (fr) 2001-05-03

Family

ID=26858390

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/029832 Ceased WO2001030707A1 (fr) 1999-10-28 2000-10-30 Dispositif et procede de traitement de flux de dechets d'origine dentaire

Country Status (3)

Country Link
AU (1) AU1245101A (fr)
CA (1) CA2356902A1 (fr)
WO (1) WO2001030707A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1462068A3 (fr) * 2003-03-24 2005-02-23 Bruno Pregenzer Récipient de décantation pour un séparateur d'une unité d'aspiration dentaire
US7767079B2 (en) 2006-09-06 2010-08-03 Darcy Michael J Amalgam separator
ITMI20100196A1 (it) * 2010-02-10 2011-08-11 Carlo Ghisalberti Polimeri e composizioni per la prevenzione o il trattamento di detossicazione mucosale da mercurio elementare e bivalente
WO2012013292A1 (fr) * 2010-07-29 2012-02-02 DüRR DENTAL AG Séparateur de solides

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120068A1 (de) * 1991-06-18 1992-12-24 Kaltenbach & Voigt Verfahren zur schwermetallreduzierung im abwasser von insbesondere zahnaerztlichen praxen
WO1998046324A1 (fr) * 1997-04-15 1998-10-22 Sweden Recycling Ab Appareil de separation des solides contenus dans un liquide
US5885076A (en) * 1995-12-01 1999-03-23 The United States Of America As Represented By The Secretary Of The Navy Method and system for removing mercury from dental waste water

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120068A1 (de) * 1991-06-18 1992-12-24 Kaltenbach & Voigt Verfahren zur schwermetallreduzierung im abwasser von insbesondere zahnaerztlichen praxen
US5885076A (en) * 1995-12-01 1999-03-23 The United States Of America As Represented By The Secretary Of The Navy Method and system for removing mercury from dental waste water
WO1998046324A1 (fr) * 1997-04-15 1998-10-22 Sweden Recycling Ab Appareil de separation des solides contenus dans un liquide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1462068A3 (fr) * 2003-03-24 2005-02-23 Bruno Pregenzer Récipient de décantation pour un séparateur d'une unité d'aspiration dentaire
US7767079B2 (en) 2006-09-06 2010-08-03 Darcy Michael J Amalgam separator
ITMI20100196A1 (it) * 2010-02-10 2011-08-11 Carlo Ghisalberti Polimeri e composizioni per la prevenzione o il trattamento di detossicazione mucosale da mercurio elementare e bivalente
WO2012013292A1 (fr) * 2010-07-29 2012-02-02 DüRR DENTAL AG Séparateur de solides
US8636837B2 (en) * 2010-07-29 2014-01-28 Duerr Dental Ag Solids separator

Also Published As

Publication number Publication date
AU1245101A (en) 2001-05-08
CA2356902A1 (fr) 2001-05-03

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