EP0939277A1 - Verfahren zur Behandlung von Materialien, insbesondere von Abfällen - Google Patents

Verfahren zur Behandlung von Materialien, insbesondere von Abfällen Download PDF

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Publication number
EP0939277A1
EP0939277A1 EP98830106A EP98830106A EP0939277A1 EP 0939277 A1 EP0939277 A1 EP 0939277A1 EP 98830106 A EP98830106 A EP 98830106A EP 98830106 A EP98830106 A EP 98830106A EP 0939277 A1 EP0939277 A1 EP 0939277A1
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EP
European Patent Office
Prior art keywords
materials
treated
pressure
combustion
chamber
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.)
Withdrawn
Application number
EP98830106A
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English (en)
French (fr)
Inventor
Piergiorgio Data
Gian Gabriele Silvestri
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Individual
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Individual
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 Individual filed Critical Individual
Priority to EP98830106A priority Critical patent/EP0939277A1/de
Priority to PCT/EP1999/001277 priority patent/WO1999043987A1/en
Priority to AU29303/99A priority patent/AU2930399A/en
Publication of EP0939277A1 publication Critical patent/EP0939277A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F23C99/005—Suspension-type burning, i.e. fuel particles carried along with a gas flow while burning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/24—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a vertical, substantially cylindrical, combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/30—Combustion in a pressurised chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/50008—Combustion of waste suspended or lifted by upward gas flows

Definitions

  • This invention relates to a process for the treatment of materials, in particular waste materials, in a pressure-tight chamber by combustion under a high pressure oxygen medium.
  • materials are understood to mean materials substantially of any types as issuing from a variety of activities.
  • materials include: organic and inorganic town solid waste; particular materials such as asbestos (also in compositions such as Eternit ( TM ) ); wheel tires from road vehicles; incombustible materials such as cement (e.g., cement impregnated with toxic substances like arsenic and chrome); harmful combustible materials impregnated with toxic substances (parasiticides), such as telephone poles and railway sleepers; particular organic waste such as solid or near-solid residues from tanneries, dairy plants and crushers; and radioactive materials.
  • incombustible materials such as cement (e.g., cement impregnated with toxic substances like arsenic and chrome); harmful combustible materials impregnated with toxic substances (parasiticides), such as telephone poles and railway sleepers; particular organic waste such as solid or near-solid residues from tanneries, dairy plants and crushers; and radioactive materials.
  • Suitable materials to be treated with this invention are in particular those of the solid and near-solid types, although liquid or flowable substances such as burned mineral oils also are eligible.
  • the invention further relates to a pressure-tight chamber as well as an apparatus for implementing the inventive process.
  • the problem underlying the present invention is that of providing a process for treating materials, in particular waste materials, which is simple to implement, effective and non-polluting, and neither involves high investment and operating costs nor a high energy consumption.
  • sustained is understood to mean a state whereby the materials being treated are dispersed through a gaseous phase (oxygen) with no chance of coming into contact with any of the pressure-tight chamber members.
  • the process of this invention can treat materials, in particular waste materials, in a safe and efficient way by burning them under high pressure oxygen within a pressure-tight chamber.
  • the absence of contact between the pressure-tight chamber and the materials to be treated advantageously causes the large amount of heat released by the combustion under high pressure oxygen to remain confined within a predetermined portion of the chamber, and to expand gradually through the chamber interior without triggering any undesired phenomena of spontaneous combustion or sublimation of the chamber members, in particular of the chamber walls.
  • the very high temperatures attained with this combustion can be utilized to treat materials of almost any types, in particular waste materials and, advantageously, incombustible materials as well, such as cement and radioactive materials.
  • the process of this invention although affording no reduction in the material radioactivity - advantageously allows their volume to be significantly reduced, thereby making their ultimate disposal easier, and possibly allowing them to be converted into suitable compounds for subsequent treatment by other processes.
  • the gaseous effluent resulting from the process according to this invention it should be noted that by carrying out the waste materials combustion under controlled atmosphere, i.e. virtually under oxygen alone, it is possible to advantageously eliminate the release to the environment of nitrogen compounds (NO X ), with nitrogen accounting for approximately 80% of atmospheric air, and other gaseous pollutants and fumes, by virtue of the high combustion temperature. It can be said that, in practice, the one gaseous substance released to the environment will be carbon dioxide.
  • NO X nitrogen compounds
  • the combustion-supporting gas for burning the waste materials to be treated under a high pressure is mainly formed of oxygen, the costs for implementing the process of this invention can be kept quite low.
  • this process also allows thermal and mechanical energy to be advantageously recovered by exploiting the large amounts of heat and the high pressures generated inside the pressure-tight chamber.
  • the invention advantageously provides a pressure-tight chamber for the treatment of materials, in particular waste materials, by combustion under a high pressure oxygen medium, which comprises:
  • FIG. 1 generally shown at 1 is an apparatus for the treatment of materials by combustion under a high pressure oxygen medium, according to this invention.
  • the apparatus 1 comprises at least one pressure-tight chamber 2 for implementing the inventive process, and suitable means 3 for indirect heat exchange between the chamber 2 and a cooling fluid (not shown) caused to swept the chamber exterior.
  • the pressure-tight chamber 2 advantageously comprises: an upright shell 4 substantially cylindrical in shape; a combustion zone 5 defined on the interior of the shell 4; means 6 for supplying a gaseous stream, essentially comprised of oxygen gas, to the combustion zone 5; suitable means 7 for feed a predetermined amount of materials 13 (such as waste materials) to be treated into a top end 5a of the combustion zone 5; and means 8 for extracting a flue gas stream, resulting from the burning of the materials to be treated and comprising eventually any dispersed solid particles 14, from a bottom end 5b of the combustion zone 5.
  • the means 6, 7 and 8 for respectively supplying the combustion zone 5 with the stream of oxygen gas and feeding it with materials 13 to be treated, and for extracting the flue gas stream from that zone preferably comprise a conventional piping or ducting, as well as valves (not shown) for opening and closing such lines.
  • the process for the treatment of materials, such as waste materials, according to the invention can be advantageously implemented, which process is characterized in that the materials 13 are held in suspension during combustion under high pressure oxygen inside the chamber 2.
  • the materials 13 to be treated are prevented from contacting the inner wall surfaces of the shell 4 during the combustion process, thereby avoiding the risk of explosion, fire, or inflicting serious damages on the pressure-tight chamber 2.
  • the process of this invention unexpectedly allows the materials 13 to be treated by combustion under high pressure oxygen in a simple, effective and safe manner.
  • the operational conditions of pressure and temperature inside the pressure-tight chamber 2 may vary with the type and amount of materials 13 to be treated.
  • pressure may vary between 8-10 atm and several hundreds atmospheres, while the combustion temperature may swing between 1100°C and over 3000°C.
  • a controlled atmosphere that is under a gaseous flow - as combustion-supporting medium - comprising essentially oxygen, with a concentration of nitrogen or other components to be found in the air limited to a few ppm.
  • the means 6 for supplying the oxygen-containing gas stream discharge to a location in the combustion zone 5 close to its bottom end 5b, so as to ensure a fast, uniform and thorough saturation of the whole combustion zone 5 and to prevent gradients in the oxygen concentration within the chamber 2, which might result in uneven and uncontrolled combustion.
  • the shell 4 of the pressure-tight chamber 2 is designed to have a high width-to-diameter ratio, preferably within the range of 1 to 10.
  • a narrow, elongate cylindrical shell 4 can successfully accommodate the high pressures under which the chamber 2 is operated (thereby allowing the thickness of the shell walls, and its associated cost, to be minimized), while affording a sufficiently long fall time for the materials 13, to ensure that they will be thoroughly burned before reaching the bottom end 5b of the combustion chamber 5.
  • the walls of the shell 4 are formed from stainless steel of a suitable thickness to withstand the operational pressures of the chamber 2.
  • the materials 13 which can be treated by the above process may be disparate, ranging from combustible to incombustible or radioactive materials, having any toxic content, composition and state.
  • the energy released from the combustion can be limited, or at least controlled, and the risk of damaging the chamber 2 further reduced.
  • the pressure-tight chamber 2 may be advantageously fed with materials 13 of either the solid (or near-solid) or liquid type.
  • toxic or otherwise harmful materials such as burned oils
  • the heat generated by the combustion of a given material can be utilized to activate the combustion of another material having a higher combustion temperature, and so on.
  • an activating temperature it will be sufficient for an activating temperature to be relatively low (and hence produce a smaller energy consumption) to trigger a chain of exothermic reactions effective to even sublimate such incombustible materials as cement.
  • the treatment of the materials 13 is carried out by controlled spontaneous combustion of the same inside the pressure-tight chamber 2.
  • the chamber 2 can thus be fed with a mixture (solid/solid or liquid/solid) of materials 13, preferably waste materials, which burn at different temperatures.
  • the mixture of materials 13 fed into the chamber 2 may advantageously comprise combustible as well as incombustible materials.
  • the process of this invention further provides for the step of feeding the materials 13 to be treated into the chamber under the urge of mechanical means or of a gaseous or liquid fluid medium.
  • the means 7 for feeding materials to be treated to the combustion zone 5 may comprise suitable spring means (not shown), or are of the pneumatic or the hydraulic type.
  • the materials 13 are fed into the combustion zone 5 by means of a gaseous flow comprising oxygen which flows together with the materials to be treated within the means 7, which are of the pneumatic type.
  • the reference numerals 10, 11 and 12 indicate combustion activating means which are located preferably near the top end 5a of the combustion zone 5, conventional pressure switches and/or sensors for controlling the pressure and temperature inside the combustion zone 5, and a relief valve, respectively.
  • the combustion activating means 10 are preferably used to just get the chamber 2 started, that is when the latter is still cold, for example at a temperature below 700°C, and energy must be supplied from outside to initiate combustion under a high pressure of the materials to be treated.
  • the means 10 are no longer required to activate combustion each time that materials 13 are being fed to it, because according to the process of this invention, at least some of the combustion activating heat is advantageously provided by residual heat from a previous combustion.
  • the combustion activating means 10 may comprise, for instance: a resistance heater (not shown) for raising a confined portion of the combustion zone 5 preferably located near the top end 5a to a threshold temperature; and suitable means to inject a predetermined amount of a liquid or gaseous fuel, preferably gas oil or burned oils, into the suitably heated portion of the combustion zone 5.
  • a resistance heater for raising a confined portion of the combustion zone 5 preferably located near the top end 5a to a threshold temperature
  • suitable means to inject a predetermined amount of a liquid or gaseous fuel, preferably gas oil or burned oils, into the suitably heated portion of the combustion zone 5.
  • the temperature attained in said portion of the zone 5 upon combustion should be adequate to ensure that the liquid or gaseous fuel injected into the pressure-tight chamber will ignite instantaneously by spontaneous combustion (blaze), thereby allowing to reach the desired temperature to activate the combustion under a high pressure of a predetermined material to be treated.
  • the starting of the pressure-tight chamber by the means 10 is controlled such that, by the time of the combustion and consequent blaze, the materials to be treated are presented ready at the top end 5a of the combustion zone 5.
  • the relief valve 12 which is preferably of the mechanical type, has the function to prevent the internal pressure of the chamber 2 from attaining too high a level for the chamber own safety, in the event of something going amiss.
  • the process of this invention is characterized in that it advantageously comprises the following steps: supplying a gas stream, essentially comprised of oxygen gas, to the pressure-tight chamber 2 until a pressure of at least 5 atm is attained; feeding a predetermined amount of materials 13 to be treated into the chamber 2, and subjecting them to combustion with the oxygen at a temperature of at least 1100°C, with the materials 13 being held in suspension during the combustion process; and extracting a flue gas stream issuing from the combustion of the materials 13, which stream may include dispersed solid particles 14, from the chamber 2.
  • the operational cycles can be completed quite rapidly, within a few second time or even in less than one second, such that relatively large amounts of materials can be treated and then disposed of, even if limited amounts of such materials are treated per cycle.
  • a pressure-tight chamber measuring only two meters in height, and 0.2 meter in diameter, can treat over eight hundred kilograms of waste materials daily (which is approximately one half of the daily waste from a hospital of average size), when operated in cycles of one second and with material unit charges of a few grams.
  • the process further comprises the step of circulating at least a part of said flue gas stream back to said pressure-tight chamber.
  • the chamber 2 advantageously comprises suitable means (indicated by a dash line 15 in Figure 1) for circulating at least a part of the flue gas stream back to the combustion zone 5.
  • the means 15 comprise a duct in fluid communication with the means 8 for extracting the flue gas stream from the chamber 2, and with the means 7 for feeding to the same the materials to be treated.
  • the gas and eventually any solid residue 14 resulting from the combustion of the materials 13, once extracted from the chamber 2 by the means 8, can advantageously be reintroduced (at least in part) into the chamber 2, instead of being dispersed in the environment.
  • a further feature of the process according to the invention is that the materials 13 can be advantageously fed to a plurality of chambers 2 operated in parallel and/or series.
  • the simultaneous feeding of the materials 13 to a number of chambers 2 in parallel enables the treatment process to be applied in a highly flexible manner, with the materials to be treated being distributed, if desired, to the various pressure-tight chambers in different amounts and compositions.
  • the parallel arrangement of the chambers can accommodate maintenance or emergency downtime for one or more chambers without the whole process having to be shut down.
  • Feeding the materials 13 to several chambers 2 arranged in series is a convenient choice where the combustion within a first chamber is carried out only partially. In this case, the partially burned materials 13 would be fed into a second or a third or a fourth, etc., pressure-tight chambers 2 for completion of the combustion process.
  • this allows the combustion of the materials to be carried out in a more gradual and controlled manner through a number of chambers, so as to minimize the risk of accidents or damage for the chambers.
  • process of this invention can be applied to the treatment of materials 12 fed to a plurality of chambers 2 in either a parallel and/or a series arrangement.
  • the apparatus 1 can advantageously comprise a plurality of chambers 2 arranged in parallel and in series
  • the means 3 for indirect heat exchange comprise a safety shroud 16 provided around the chamber(s) 2.
  • a single safety shroud can be adequate to protect a plurality of chambers 2.
  • the safety shroud 16 is designed to protect the environment in the event of a pressure-tight chamber 2 bursting or otherwise failing, and is made of shockproof materials resistant to high temperatures and sharp pressure changes.
  • a free space 17 is advantageously created between the safety shroud 16 and the chamber(s) 2 to contain the aforementioned cooling fluid (not shown).
  • the cooling fluid inlet and outlet conduits to/from the free space 17 have not been shown because conventional and known to the skilled one.
  • the cooling fluid preferably consists of a liquid, such as water, being circulated externally the chamber 2 to advantageously remove heat therefrom and to keep the temperature of the walls of the shell 4 below a predetermined value, thereby ensuring that they are cooled constantly and continually.
  • the heated cooling fluid allows a significant amount of energy to be recovered in a simple and effective way, which energy can be advantageously used for a variety of purposes, such as heating or to produce steam at high thermal level.
  • Energy can be additionally recovered according to the process of this invention by utilizing to advantage the high temperature and pressure of the flue gas stream leaving the combustion zone 5.
  • the flue gas produced in the chamber 2 is of a significant amount, because the combustion process results in substantially all the matter being sublimated or vaporized, passing from the solid or near-solid respectively liquid state directly to the gaseous state, thereby enabling considerable amounts of thermal or mechanical energy to be recovered.
  • the apparatus 1 further includes means for producing thermal and/or mechanical energy arranged in fluid communication with the means 8 for extracting the flue gas stream from the combustion zone 5 of the chamber(s) 2.
  • This energy recovering means may be provided in a chamber 18, schematically shown in Figure 1, directly downstream of the safety shroud 16. This means are not shown in further detail because it would comprise apparatuses known per se, such as turbines, generators or heat exchangers, suitable to produce mechanical or electric energy or to exploit the heat thermally.
  • a zone 19 for filtering out any solid particles 14 eventually dispersed in the flue gas stream Downstream of the chamber 18 and in fluid communication with the means 8 for extracting the flue gas stream are, as shown schematically, a zone 19 for filtering out any solid particles 14 eventually dispersed in the flue gas stream, and a zone 20 for separating any fluorine and chlorine also eventually present in the flue gases.
  • the zones 19 and 20 would include conventional filters or scrubbing apparatuses, no further described herein.
  • the reference numerals 21, 22 and 23 respectively indicate a grinding and/or mixing zone for the materials 13 to be treated, an agglomerating and/or encapsulating and/or metering zone for the materials 13 to be treated, and means - shown in dash lines - for conveying the materials to be treated from a collecting zone (not shown) to the zones 21 and/or 22.
  • the zone 21 advantageously comprises means for suitably grinding the materials 13, which means are connected to the feeding means 7 for feeding the materials 13 to be treated to the combustion zone 5 of the chamber(s) 2.
  • Mills or other known apparatuses may be used as the grinding means, according to the nature of the material being handled.
  • this process advantageously comprises the step of feeding the materials 13 into the chamber in a suitably ground form, in order to have them rapidly and effectively burned, with an extremely reduced energy consumption.
  • this additional process step - concerning, of course, solid or near-solid materials - allows the combustion zone 5 to be fed with relatively homogeneous small-size fragments whose total surface area is significantly larger than the surface area of the same material before grinding, which can substantially favour and speed up the combustion process.
  • the zone 21 may advantageously comprise means for mixing materials 13 to be treated which burn at different temperatures, which means would be connected to the means 7 for feeding the materials 13 to the combustion zone 5 of the chamber(s) 2.
  • Screw or auger type mixers may be used as the mixing means, according to the type of material to be treated.
  • the granules fed into the chamber 2 would be contained in respective vacuum envelopes (not shown) to facilitate the introduction of the materials 13 into the chamber, either under the urge of mechanical means or of a liquid or gaseous fluid medium, and to prevent undesired contacting.
  • means are provided in the zone 22 for agglomerating in granule form the materials 13 after grinding, and if required, encapsulating the granules in respective vacuum envelopes.
  • This means are disposed between said grinding means and the means 7 for feeding the materials 13 to be treated to the combustion zone 5.
  • the zone 22 moreover, advantageously comprises a metering device for feeding the materials 13 in a controlled manner, which device is in direct communication with the means 7 for feeding the materials 13 to the combustion zone 5.
  • the metering device allows the feeding of the materials 13 to be treated to occur in a controlled manner and in phase with the operational cycles of the chamber 2, which materials being delivered directly from the collecting zone, from zone 21, or from the agglomerating and/or encapsulating means of the zone 22.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)
EP98830106A 1998-02-26 1998-02-26 Verfahren zur Behandlung von Materialien, insbesondere von Abfällen Withdrawn EP0939277A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98830106A EP0939277A1 (de) 1998-02-26 1998-02-26 Verfahren zur Behandlung von Materialien, insbesondere von Abfällen
PCT/EP1999/001277 WO1999043987A1 (en) 1998-02-26 1999-02-23 Process for the treatment of materials, in particular waste materials
AU29303/99A AU2930399A (en) 1998-02-26 1999-02-23 Process for the treatment of materials, in particular waste materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830106A EP0939277A1 (de) 1998-02-26 1998-02-26 Verfahren zur Behandlung von Materialien, insbesondere von Abfällen

Publications (1)

Publication Number Publication Date
EP0939277A1 true EP0939277A1 (de) 1999-09-01

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Application Number Title Priority Date Filing Date
EP98830106A Withdrawn EP0939277A1 (de) 1998-02-26 1998-02-26 Verfahren zur Behandlung von Materialien, insbesondere von Abfällen

Country Status (3)

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EP (1) EP0939277A1 (de)
AU (1) AU2930399A (de)
WO (1) WO1999043987A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITCH20110011A1 (it) * 2011-08-19 2013-02-20 Martina Gialluca Generatore di energia elettrica tramite distruzione dei rifiuti con dispositivo iperbarico

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939781A (en) * 1974-05-30 1976-02-24 Ecologenics Corporation Incinerator, incineration system and method
US4027602A (en) * 1976-02-13 1977-06-07 Mott James R Combustion system
US4048286A (en) * 1975-04-01 1977-09-13 Linde Aktiengesellschaft Process for the decontamination of waste materials
US4210315A (en) * 1977-05-16 1980-07-01 Outokumpu Oy Means for producing a suspension of a powdery substance and a reaction gas
EP0536468A2 (de) * 1991-10-08 1993-04-14 ITEA S.r.l. Verfahren und Anlage zur Entsorgung von Abfällen
WO1995004898A1 (en) * 1993-08-06 1995-02-16 Young Bob W Combustion apparatus including pneumatically suspended combustion zone
US5445088A (en) * 1992-07-02 1995-08-29 Daugherty; William K. Process for the disposal of municipal refuse and certain hazardous waste
WO1996010544A2 (en) * 1994-10-04 1996-04-11 Jaakko Pöyry Oy Method for oxidation of organic waste liquors

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939781A (en) * 1974-05-30 1976-02-24 Ecologenics Corporation Incinerator, incineration system and method
US4048286A (en) * 1975-04-01 1977-09-13 Linde Aktiengesellschaft Process for the decontamination of waste materials
US4027602A (en) * 1976-02-13 1977-06-07 Mott James R Combustion system
US4210315A (en) * 1977-05-16 1980-07-01 Outokumpu Oy Means for producing a suspension of a powdery substance and a reaction gas
EP0536468A2 (de) * 1991-10-08 1993-04-14 ITEA S.r.l. Verfahren und Anlage zur Entsorgung von Abfällen
US5445088A (en) * 1992-07-02 1995-08-29 Daugherty; William K. Process for the disposal of municipal refuse and certain hazardous waste
WO1995004898A1 (en) * 1993-08-06 1995-02-16 Young Bob W Combustion apparatus including pneumatically suspended combustion zone
WO1996010544A2 (en) * 1994-10-04 1996-04-11 Jaakko Pöyry Oy Method for oxidation of organic waste liquors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITCH20110011A1 (it) * 2011-08-19 2013-02-20 Martina Gialluca Generatore di energia elettrica tramite distruzione dei rifiuti con dispositivo iperbarico

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Publication number Publication date
AU2930399A (en) 1999-09-15
WO1999043987A1 (en) 1999-09-02

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