WO2003000594A1 - Procede et appareil de traitement de melanges fluidiques avec de l'energie ultrasonore - Google Patents

Procede et appareil de traitement de melanges fluidiques avec de l'energie ultrasonore Download PDF

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Publication number
WO2003000594A1
WO2003000594A1 PCT/US2002/020034 US0220034W WO03000594A1 WO 2003000594 A1 WO2003000594 A1 WO 2003000594A1 US 0220034 W US0220034 W US 0220034W WO 03000594 A1 WO03000594 A1 WO 03000594A1
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WO
WIPO (PCT)
Prior art keywords
mixture
ultrasonic energy
vessel
source
waste matter
Prior art date
Application number
PCT/US2002/020034
Other languages
English (en)
Inventor
Bruce E. Minter
Original Assignee
Procav Corporation
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
Priority claimed from US10/176,334 external-priority patent/US6911153B2/en
Application filed by Procav Corporation filed Critical Procav Corporation
Publication of WO2003000594A1 publication Critical patent/WO2003000594A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0073—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042
    • B01D19/0078—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042 by vibration
    • 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
    • A61L11/00—Methods specially adapted for refuse
    • 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/025—Ultrasonics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/242—Tubular reactors in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/2425—Tubular reactors in parallel
    • 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
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • 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
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • 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
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • 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
    • C02F2101/36—Organic compounds containing halogen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • 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
    • C02F2303/04—Disinfection

Definitions

  • TITLE METHOD AND APPARATUS FOR TREATING FLUID MIXTURES WITH ULTRASONIC ENERGY
  • the present invention relates to methods and apparatuses for treating mixtures, such as agricultural or industrial waste streams, with ultrasonic energy to clean or otherwise alter the waste streams.
  • mixtures such as agricultural or industrial waste streams
  • ultrasonic energy to clean or otherwise alter the waste streams.
  • Many industrial, municipal and agricultural processes generate waste matter that is potentially harmful to the environment. Accordingly, a variety of processes have been developed to remove harmful elements from the waste matter before returning the water to lakes, streams and oceans. Many conventional processes include filters, such as reverse osmosis filters that remove solid contaminants from the waste matter. However, because of environmental concerns, it may be difficult to dispose of the solid contaminants removed by the filters. Furthermore, the filters themselves must be periodically back-flushed, which can be a time consuming process. Accordingly, in one alternative process, microorganisms are disposed in the waste matter to consume or alter harmful elements in the waste matter.
  • a method in accordance with one aspect of the invention includes introducing into a treatment apparatus a continuous flow of a mixture (such as an aqueous mixture) that includes a selected constituent (such as a contaminant). A phase and/or a chemical composition of the selected constituent is altered by exposing the mixture to ultrasonic energy while the mixture flows through the apparatus. The mixture is then removed from the apparatus.
  • a mixture such as an aqueous mixture
  • a selected constituent such as a contaminant
  • exposing the mixture to ultrasonic energy can including cavitating a liquid portion of the mixture to generate heat.
  • Altering a chemical composition of the selected constituent can include oxidizing the selected constituent to produce an ash and a gas.
  • the mixture can be under pressure while it is exposed to ultrasonic energy and can be coupled to a vacuum source after being exposed to the ultrasonic energy to remove gas from the mixture.
  • the ultrasonic energy can include a first ultrasonic energy having a first frequency and the mixture can be exposed to a second ultrasonic energy having a second frequency different than the first frequency.
  • the ultrasonic energy source can one of two ultrasonic energy sources, and the vessel can include first and second channels coupled to each other, with one of the two ultrasonic energy sources positioned to direct first ultrasonic energy into the first channel and the other ultrasonic energy source positioned to direct second ultrasonic energy into the second channel as the mixture passes through the first and second channels.
  • Figure 1 is a schematic diagram of an apparatus in accordance with an embodiment of the invention.
  • Figure 2 is a partially schematic, isometric view of a channel assembly that forms a portion of the apparatus shown in Figure 1 in accordance with an embodiment of the invention.
  • FIGS 3A-3C are schematic illustrations of treatment apparatuses in accordance with further embodiments of the invention.
  • the waste matter stream can proceed in a continuous manner from the source 103 to the outflow port 108.
  • the apparatus 100 can operate in a batch mode, as will be described in greater detail below with reference to Figures 3B-3C.
  • the vessel 110 can include an entrance port 11 1 that receives a continuous flow of the waste matter, and an exit port 112 through which the partially treated waste matter exits the vessel 110.
  • the vessel 110 can be configured to divide the waste matter stream into several components that are processed in parallel in the channel assemblies 120 and recombined before exiting the vessel 110 through the exit port 112.
  • the vessel 110 can include an intake manifold 113 for dividing the incoming flow upstream of the channel assemblies 120 and an output manifold 114 for collecting the flow downstream of the channel assemblies 120.
  • the intake manifold 113 can further include a plurality of intake manifold conduits 115a, each of which directs a portion of the incoming waste matter into one of the channel assemblies 120.
  • the output manifold conduits 115b collect the flows from the channel assemblies 120 upstream of the exit port 112.
  • an ultrasonic energy source 150 (such as a piezo- electric source or another ultrasonic energy emitter or generator) is positioned toward the second end 125b of each channel 122. Accordingly, the waste matter can travel toward the ultrasonic energy source 150 as it moves through the channel 122. Alternatively, the ultrasonic energy source 150 can be positioned toward the first end 125a of each channel 122 with the waste matter traveling away from the ultrasonic energy source 150.
  • the end of the channel 122 opposite the ultrasonic energy source 150 can include a reflector 151 positioned to reflect (a) at least a portion of the ultrasonic energy generated by the ultrasonic energy source 150, and/or (b) products produced by the ultrasonic energy, such as cavitation bubbles. Accordingly, the reflector 151 can direct the ultrasonic energy and/or the products produced by the ultrasonic energy back toward the ultrasonic energy source 150. Additional details of devices that focus and reflect ultrasonic energy and/or resulting products are provided in a copending patent application assigned to the assignee of the present application and titled "Method and Apparatus for Directing Ultrasonic Energy".
  • the sources 150 can be selected to emit ultrasonic energy at a power and frequency that cause an aqueous (or other liquid) portion of the waste matter stream to cavitate. Accordingly, cavitation bubbles formed in the waste matter stream can grow in a cyclic fashion and ultimately collapse. This process creates very high temperatures, pressures, and thermal cycling rates.
  • this process can develop temperatures in the waste matter stream of up to 5,000 degrees Celsius, pressures of up to 1,000 atmospheres, and heating and cooling rates above 10 billion degrees Celsius per second for durations of less than 1 microsecond (see, for example, Suslick, "The Chemistry of Ultrasound,” in The Yearbook of Science and the Future, Encyclopedia Britannica, 138-145 (1994), incorporated herein in its entirety by reference).
  • the collapsing cavitation bubbles can have several advantageous effects on the constituents of the waste matter stream.
  • the collapsing bubbles can form radicals, such as OH radicals which are unstable and can chemically interact with adjacent constituents in the waste matter stream to change the chemical composition of the adjacent constituents.
  • the OH radical can interact with nitrates in the waste matter stream to produce gases such as nitrogen dioxide.
  • the reaction can continue (for example, in the presence of additional constituents) to produce nitrites.
  • the collapsing cavitation bubbles can have effects on other molecules that change a chemical composition of the molecules and/or change a phase of the molecules from a liquid or solid phase to a gaseous phase.
  • the collapsing cavitation bubbles can have other effects on other constituents of the waste matter stream.
  • the high pressures and temperatures generated by the collapsing cavitation bubbles can disrupt the molecular structure of the walls of living cells and can accordingly kill and break up pathogenic organisms, such as bacteria.
  • Another effect of the collapsing cavitation bubbles can be to combust or oxidize constituents of the waste matter stream.
  • the high temperature produced by the collapsing cavitation bubble can oxidize constituents of the waste matter stream, producing by-products such as carbon dioxide and ash.
  • the carbon dioxide can evolve from the waste matter stream and the ash can be filtered from the waste matter stream, as will be described in greater detail below.
  • the collapsing cavitation bubbles can also separate constituents of the waste matter stream.
  • the waste matter stream includes a mixture of oil, water, and an emulsifier
  • the collapsing cavitation bubbles can alter the molecular characteristics of the emulsifier and cause the emulsifier to loose its effectiveness. Accordingly, the oil and water can separate from each other and one or the other can be removed from the stream.
  • the collapsing cavitation bubbles can have other effects on the waste matter stream that alter the characteristics of the constituents of the stream in a manner that makes the constituents more benign and/or allows the constituents to be more easily removed from the waste matter stream.
  • the frequency of the ultrasonic energy transmitted by the sources 150 into the waste matter stream can be selected based on the resonant frequencies of constituents in the waste matter stream.
  • the frequency of the ultrasonic energy source 150 can be selected to be at or above a natural resonant frequency of molecules of constituents in the stream.
  • the flow includes farm animal fecal waste in an aqueous solution, along with pathogens such as e.
  • the ultrasonic energy sources 150 can be selected to produce a distribution of ultrasonic waves having an energy peak at approximately 980 kilohertz.
  • the peak energy of the ultrasonic energy sources 150 can be selected to occur at other frequencies, depending for example on the types, relative quantities, and/or relative potential harmful effects of constituents in the stream.
  • individual ultrasonic energy sources 150 can be selected to have a particular, and potentially unique, effect on selected constituents of the waste matter stream.
  • adjacent ultrasonic energy sources within one or more of the channel assemblies 120 can produce different frequencies.
  • the ultrasonic energy source 150 in the uppermost channel 122 of Figure 2 can emit energy at a higher frequency than that emitted by the energy source 150 in the next downstream channel 122.
  • An advantage of this arrangement for waste matter streams having multiple constituents is that the waste matter streams can be subjected to a plurality of frequencies, with each frequency tailored to affect a particular constituent of the waste matter stream. Such an arrangement can be more effective than some conventional arrangements for removing constituents from the waste matter stream in a single apparatus.
  • the geometry of the channel assembly 120 can be selected to define the time during which any given constituent of the waste matter stream is subjected to the energy emitted by the ultrasonic energy sources 150.
  • the overall length of the flow path through each channel assembly 120 and the rate at which the waste matter stream passes through the channel assembly 120 can be selected according to the amount of suspended solids in the waste matter stream, with the overall residence time within the channel assembly 120 being lower for waste matter streams having relatively few suspended solids and higher for waste matter streams having more suspended solids.
  • each channel assembly 120 can be made smaller (by reducing the number of channels 122 in each assembly 120) and/or faster (by increasing the flow rate of the waste matter through the channel assembly) when the solids separator 104 ( Figure 1) filters out a greater fraction of the suspended solids.
  • the apparatus 100 can include features that increase the number of radicals and/or other chemically reactive constituents in the waste matter stream.
  • the apparatus can include an ozone generator 160 coupled to the vessel 110 to introduce ozone into the waste matter stream while the ultrasonic energy sources 150 are activated.
  • the ozone generator 160 can be replaced with, or supplemented by, sources of other chemically reactive species.
  • gas generated by the chemical reactions in the vessel 110 can be removed from the waste matter stream, as will be described in greater detail below.
  • the non- gas molecules remaining in the waste matter stream after the gas is formed can either be removed from the waste matter stream or can remain in the waste matter stream depending, for example, on the potential hazard to the quality of the waste matter presented by the remaining molecules.
  • the waste matter stream can proceed from the vessel 110 toward the degassing assembly 130 via the connecting conduits 180.
  • the apparatus 100 can include a valve 102a, such as a throttling valve, that allows the portion of the waste matter stream upstream of the valve 102a to have a pressure greater than atmospheric pressure, while the portion of the waste matter stream downstream of the valve 102a can be subjected to a pressure less than atmospheric pressure. Accordingly, the pressure within the degassing assembly 130 can be reduced to increase the rate at which gas evolves from the mixture, without reducing the pressure of the mixture within the vessel 110.
  • a valve 102a such as a throttling valve
  • the degassing assembly 130 can include two gas release chambers 131 (shown as a first chamber 131 a and a second chamber 131b) coupled to the connecting conduits 180 with a selector valve 102b.
  • the selector valve 102b can be configured to alternate between a first setting with the waste matter stream directed into the first gas release chamber 131a and a second setting with the waste matter stream directed into the second gas release chamber 131b.
  • the waste matter stream exiting the vessel 110 can accordingly be directed into the first gas release chamber 131 a until the first chamber 131 a is filled to a desired level, and then directed in the second gas release chamber 131 b.
  • the filled first gas release chamber 1 13a can be subjected to a vacuum pressure generated by a vacuum source 132 coupled to the gas release chambers 131 with a valve 102e.
  • a vacuum source 132 coupled to the gas release chambers 131 with a valve 102e.
  • the stream exits the first chamber 131 a and the first chamber 131 a is re-filled while a vacuum is applied to the waste matter in the second chamber 131b. Accordingly, the continuous flow of waste matter from the vessel 110 can be sequentially directed into either the first or second gas release chamber 131a, 131 b without interrupting the flow.
  • the vacuum source 132 can remain in fluid communication with both chambers 131 during both the transient "fill” and the steady state "filled” portions of the cycle for each chamber.
  • the vacuum source 132 can be coupled to each chamber 131 only after that chamber has been filled.
  • the vacuum source 132 can increase the speed with which gas in the waste matter is removed.
  • the gas release chambers 131 can be open to the atmosphere to release gas from the waste matter stream under atmospheric pressure. Whether the waste matter is subject to atmospheric pressure or less than atmospheric pressure, the fluid within the chambers 131 can be agitated, for example, with an agitation device 133.
  • the agitation device 133 can include a piezo-electric energy source that generates ultrasonic energy in the gas release chambers 131.
  • the agitation device 133 can generate pressure waves at other frequencies.
  • the agitation device 133 can include other devices, such as stirrers or other mechanical implements.
  • the first filter stage 141 can include multi-media 15 micron filter elements
  • the second filter stage 142 can include 2 micron filter elements
  • the third filter stage 143 can include activated charcoal.
  • the separation assembly 140 can include other separation arrangements.
  • the separation assembly 140 can be configured to separate one or more of the oil, the water, and the emulsifier from the remaining constituents.
  • a back pressure valve 102f can control the back pressure through the separation assembly 140
  • a flow meter 172 can monitor the rate of flow through the apparatus 100.
  • the flow rate determined by the flow meter 172 may be less than a flow rate measured at the source 103 because gas may be removed from the flow at the degassing assembly 130 and solids may be removed from the flow in the separation assembly 140.
  • the operations of the apparatus 100 can be automatically controlled with a controller 170.
  • the controller 170 is operatively coupled to a pneumatic source 171 to direct and regulate flows of pressurized air to the controlled elements via pneumatic lines 173.
  • the apparatus 100 can include other automatic control features, such as fail-safe devices in valves 102b and 102d that close these valves automatically in the event of a power failure to direct the waste matter stream back to the waste matter holding chamber 107.
  • Surge suppression tanks 181a and 181b can be positioned along the flow path between the source 103 and the outflow port 108 to absorb fluctuations in the flow volume and pressure throughout the apparatus 100.
  • One feature of an embodiment of the apparatus 100 described above with reference to Figures 1 and 2 is that the waste matter stream flows in a continuous fashion from the source 103 to the outflow port 108.
  • An advantage of this feature is that the treatment of the waste matter throughout the apparatus 100 can be more consistent and faster than for conventional batch systems.
  • Another feature of an embodiment of the apparatus 100 is that the channel assemblies 120 can have a modular construction. Accordingly, the channel assemblies 120 can be easily formed to have as long or as short a flow path as is appropriate for the type of flow directed into the assemblies.
  • the vessel 110 can include channel assemblies 120 having different flow path lengths.
  • each of the channel assemblies 120 shown in Figure 1 can have a different flow path length, and instead of directing equal portions of the waste matter stream through each channel assembly 120, the entire waste matter stream can be directed through the channel assembly 120 having the length corresponding to the desired residence time appropriate for the amount of solids suspended in that waste matter stream.
  • an embodiment of the apparatus 100 can be suitable for treating a variety of different waste matter streams.
  • the vessel 110 can include a plurality of ultrasonic energy sources 150, each emitting ultrasonic energy at a different frequency. Accordingly, each ultrasonic energy source 150 can be selected to have a desired effect on a particular constituent of the waste matter stream.
  • a plurality of ultrasonic energy sources 150 having different frequencies can be disposed in each channel assembly 120.
  • all the ultrasonic energy sources 150 in a particular channel assembly 120 can emit ultrasonic energy at the same frequency, but the frequency selected for each channel assembly 120 can be different.
  • the apparatus 100 can be compatible with a variety of different waste matter streams by directing a selected waste matter stream through the channel assembly 120 having ultrasonic energy sources 150 that emit energy at the frequency most appropriate for the constituents in that waste matter stream.
  • Figures 3A-3C are schematic illustrations of portions of treatment apparatuses in accordance with other embodiments of the invention. For purposes of illustration, only portions of the apparatuses are shown in Figures 3A-3C, and it will be understood that the apparatuses can include additional elements that are generally similar to those described above with reference to Figures 1 and 2.
  • Figure 3A illustrates a portion of an apparatus 200 that includes a waste matter source 203, an outflow port 208 and a vessel 210 between the source 203 and the outflow port 208.
  • the vessel 210 can include two channels 222 (shown as a first channel 222a and a second channel 222b coupled together in a series arrangement.
  • the first channel 222a can include a first ultrasonic energy source 250a that emits ultrasonic energy at a first frequency
  • the second channel 222b can include a second ultrasonic energy source 250b that emits ultrasonic energy at a second frequency different than the first frequency.
  • the apparatus 200 can direct ultrasonic energy at different frequencies into the same waste matter stream to selectively affect different constituents within the waste matter stream, as described above with reference to Figures 1-2.
  • the first and second energy sources 250a and 250b can emit ultrasonic energy at the same frequency.
  • each channel 222 can include a single length of a tube, a series of channel segments that double back on each other (similar to those shown in Figure 2), a non-tubular chamber, or any liquid-tight container.
  • Figure 3B illustrates an apparatus 300 that operates in a batch mode and includes a vessel 310 having an entrance/exit port 311 and first and second ultrasonic energy sources 350a and 350b.
  • the first ultrasonic energy source 350a can emit ultrasonic energy at a first frequency
  • the second ultrasonic energy source 350b can emit ultrasonic energy at a second frequency different than the first frequency.
  • the ultrasonic energy sources 350a, 350b can be placed at any position within the vessel 310 for which the ultrasonic energy can be efficiently transmitted to the waste matter stream.
  • FIG. 3C illustrates an apparatus 400 having a vessel 410 with an entrance/exit port 411 and two ultrasonic energy sources 450 (shown as a first source 450a and second source 450b) at opposite ends of the vessel 410.
  • the energy sources 450 can be operated either simultaneously or sequentially to create cavitation bubbles in a volume of waste matter within the vessel 410.
  • each of the energy sources 450 can be configured and positioned to reduce potential wear caused by energy emitted by the other energy source 450.
  • the apparatus can include first and second vessels and can receive a continuous flow of waste matter that is alternately directed into each vessel.
  • the first vessel can be filled first, after which the continuous flow is directed into the second vessel. While the second vessel is filling, ultrasonic energy can be directed into the mixture in the first vessel, and while the first vessel is filling, ultrasonic energy can be directed into the mixture in the second vessel.
  • the apparatus can take in a continuous flow of waste matter that is divided and exposed to ultrasonic energy in separate batch processes. Accordingly, the invention is not limited except as by the appended claims. I claim:

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  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Mechanical Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Toxicology (AREA)
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Abstract

L'invention concerne un procédé et un appareil (100) permettant de traiter des mélanges avec de l'énergie ultrasonore. Le mélange peut comprendre un constituant sélectionné, ledit procédé pouvant consister à diriger un flux de ce mélange dans un appareil de traitement (100) et à modifier une phase et/ou une composition chimique du constituant sélectionné par exposition dudit mélange à une énergie ultrasonore pendant qu'il traverse l'appareil (100). Ce mélange peut être mis sous pression en cours d'exposition à l'énergie ultrasonore. Il peut ensuite être exposé à une source d'aspiration (132) destinée à extraire le gaz dudit mélange. L'énergie ultrasonore peut présenter une première fréquence, le mélange pouvant être exposé à une énergie ultrasonore présentant une seconde fréquence différente de la première fréquence lorsqu'il se trouve dans l'appareil (100).
PCT/US2002/020034 2001-06-22 2002-06-20 Procede et appareil de traitement de melanges fluidiques avec de l'energie ultrasonore WO2003000594A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US60/300,580 2001-06-22
US10/176,334 2002-06-19
US10/176,334 US6911153B2 (en) 2001-06-22 2002-06-19 Method and apparatus for treating fluid mixtures with ultrasonic energy

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WO2003000594A1 true WO2003000594A1 (fr) 2003-01-03

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1965884A1 (fr) * 2005-12-30 2008-09-10 Metso Paper, Inc. Procédé et appareil de dégazage de couleur de revêtement
WO2009144709A1 (fr) * 2008-05-27 2009-12-03 Kolmir Water Tech Ltd. Appareil et procédé pour le traitement d'un fluide contaminé à base d'eau
ITMI20122124A1 (it) * 2012-12-13 2014-06-14 Asmundis Fulvio Antonio De Metodo ed apparecchiatura per il trattamento di liquami
US9388056B2 (en) 2012-12-13 2016-07-12 De Asmundis Fulvio ANTONIO Method and apparatus for treating sewage

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US2896922A (en) * 1954-11-15 1959-07-28 Lehfeldt & Company G M B H Dr Ultrasonic means for changing the homogeneity of mixtures
US4003832A (en) * 1974-01-07 1977-01-18 Tii Corporation Method of applying ozone and sonic energy to sterilize and oxidize waste water
US4076617A (en) * 1971-04-22 1978-02-28 Tii Corporation Sonic cavitation and ozonation of waste material
US5370740A (en) * 1993-10-01 1994-12-06 Hughes Aircraft Company Chemical decomposition by sonication in liquid carbon dioxide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896922A (en) * 1954-11-15 1959-07-28 Lehfeldt & Company G M B H Dr Ultrasonic means for changing the homogeneity of mixtures
US4076617A (en) * 1971-04-22 1978-02-28 Tii Corporation Sonic cavitation and ozonation of waste material
US4003832A (en) * 1974-01-07 1977-01-18 Tii Corporation Method of applying ozone and sonic energy to sterilize and oxidize waste water
US5370740A (en) * 1993-10-01 1994-12-06 Hughes Aircraft Company Chemical decomposition by sonication in liquid carbon dioxide

Cited By (6)

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EP1965884A1 (fr) * 2005-12-30 2008-09-10 Metso Paper, Inc. Procédé et appareil de dégazage de couleur de revêtement
EP1965884A4 (fr) * 2005-12-30 2011-04-27 Metso Paper Inc Procédé et appareil de dégazage de couleur de revêtement
WO2009144709A1 (fr) * 2008-05-27 2009-12-03 Kolmir Water Tech Ltd. Appareil et procédé pour le traitement d'un fluide contaminé à base d'eau
ITMI20122124A1 (it) * 2012-12-13 2014-06-14 Asmundis Fulvio Antonio De Metodo ed apparecchiatura per il trattamento di liquami
US9388056B2 (en) 2012-12-13 2016-07-12 De Asmundis Fulvio ANTONIO Method and apparatus for treating sewage
US9527755B2 (en) 2012-12-13 2016-12-27 De Asmundis Fulvio ANTONIO Method and apparatus for treating sewage

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