WO2007075785A2 - Procede de traitement continu et etanche a l'eau et elimination definitive de dechets solides d'origine domestique, et equipement permettant d'appliquer ce procede - Google Patents

Procede de traitement continu et etanche a l'eau et elimination definitive de dechets solides d'origine domestique, et equipement permettant d'appliquer ce procede Download PDF

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Publication number
WO2007075785A2
WO2007075785A2 PCT/US2006/048606 US2006048606W WO2007075785A2 WO 2007075785 A2 WO2007075785 A2 WO 2007075785A2 US 2006048606 W US2006048606 W US 2006048606W WO 2007075785 A2 WO2007075785 A2 WO 2007075785A2
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WIPO (PCT)
Prior art keywords
solid
wastes
equipment
mud
carry out
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PCT/US2006/048606
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English (en)
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WO2007075785A9 (fr
WO2007075785A3 (fr
Inventor
Ignacio Vrljicak
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Ignacio Vrljicak
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Publication of WO2007075785A2 publication Critical patent/WO2007075785A2/fr
Publication of WO2007075785A9 publication Critical patent/WO2007075785A9/fr
Publication of WO2007075785A3 publication Critical patent/WO2007075785A3/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/08—Production of synthetic natural gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34—Other details of the shaped fuels, e.g. briquettes
    • C10L5/36—Shape
    • C10L5/361—Briquettes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Definitions

  • the present invention is related to a continuous and watertight treatment process for the final disposal of solid wastes of domestic origin that includes the digestion or anaerobia fermentation optimized by means of an early enzymatic excitation with control of the variables critical to the digestion process and the equipment to carry out said procedure.
  • a management policy of Solid Wastes of Domestic Origin involves from a technical point of view four fundamental stages: reduction at the origin, recycled, transformation of wastes and final disposal.
  • the management of domestic solid wastes practice is named " Zero Waste" although its fundamental principle is the prevention in the generation stage, the extent of responsibility to the manufacturer and the systematic search of possibilities for reusability of the wastes, leaves without solution an important part of the problematic domestic solid waste.
  • the process and the equipment object of this present invention are related fundamentally, but not exclusively to the transformation and final disposal of solid wastes of domestic origin.
  • the transformation of solid domestic wastes can be made through physics, chemical or biological means.
  • the physical transformations that can take place in the operation of systems management of solid waste include the separation of components, the mechanical reduction of volume, and the mechanical reduction of size. None of these transformations involves a change of phase.
  • the chemical transformation of solid wastes normally implies a change of phase.
  • the processes normally used to reduce and transform the domiciliary solid wastes are the combustion, the pyrolysis and the gasification. These processes have in common, that they not only produce volatile toxic waste and toxic gases such as dioxins and furans, but also that they involve large capital investments, which is non-viable fundamentally in developing countries.
  • the organic fraction' in the solid domestic wastes can be used to reduced in volume and weight by biological transformation, to produce compost, a matter similar to humus that can be used as ground conditioning, and to produce biogas (carbon methane and dioxide)
  • the main organisms involved in the biological transformations of domestic solid wastes are bacteria, fungi, yeast and actinomycets. These transformations can occur aerobically or anaerobically, depending on the availability of oxygen.
  • the biodegradable portion of the organic fraction of the solid domestic wastes can turn biologically under anaerobic conditions into a gas that contains carbon dioxide and methane.
  • the final main components are carbon dioxide, methane, ammoniac, hydrogen sulphide, and resistant organic matter. In most of the anaerobic conversion processes carbon dioxide and methane constitute more than 99% of the total gas produced.
  • the Argentine patent AR 247,371 describes a method for the reduction and recycling of urban solid waste by means of an anaerobic fermentation carried out in stages a) to compress the urban solid waste in the state in which it is until its dimensions are adapted for its transport on a fluidized bed, b) to prepare a biological soil through purifying anaerobic plants in an optimal temperature for a period of 10 to 180 minutes, c) to mix the compressed solid urban wastes with a watery suspension of stated biological prepared mud inoculated with bacterial cultures that carry out the anaerobic reduction, d) to provide to suspension the thus obtained to the anaerobic fermentation cell of the fluidized bed and the maintenance of suspension under fermentation conditions until the emission of biogas has indeed stopped.
  • Argentine patent AR 244,806 describes a process for the anaerobic fermentation of organic material, for example of domestic wastes, where the organic material is put in a container and there it is mixed completely with solid and/or liquid decomposition material that contains anaerobic bacteria after which the mass thus obtained is transferred to one of the fermentation compartments of the anaerobic fermentation installation that consist of several compartments of fermentation, in which said mass is heated and maintained at the required temperature until the organic material is almost completely fermented, while the biogas obtained from such fermentation is extracted, after which the fermented material is then removed completely from the fermentation compartment and, if desired, is. put later under treatment.
  • the American patent U.S. 6,168,642 Bl claims a method for recycling and the utilization of garbage that consist of separating printed paper, to cut the garbage in pieces between 3 and 5 cm., put the garbage in a channel of water flotation, to collect the light floating product, to precipitate heavy products, to clean the suspended organic mass in the water, to hydrolyze the organic mass to a range of pH of 9.5 to 10 to a temperature in the range of 80 to 100 0 C, to put organic mass under a anaerobic digestion in the thermophilic region to produce biogas and mud; to collect the mud and to put such mud to compost aerobic conditions to a temperature of around 60 0 C producing fertilizing mixtures organic-chemical-humus.
  • the technological field of the present invention is a continuous and watertight procedure, and the equipment to carry it out, that is a module for the treatment and final disposal of solid wastes of domestic origin (and other similar wastes), that involve an optimized anaerobic digestion by means of early enzymatic excitation, one for each module of solid reactors, and the deflection of the hydrolyzed and dissolved elements to digesters of mud, and the control of temperature, fluidity and acidity to obtain inert emergents of diverse utility.
  • APDWDO Alternative Process of Disposal of Wastes of Domestic Origins
  • APDWDO Alternative Process for Disposal of Wastes of Domiciliary Origin
  • the configuration must be oriented in countries like Argentina on how to optimize the taking advantage of inverted capital while in countries where the cost of opportunity capital is low the priority is in minimizing the cost of maintenance and operation.
  • the minimum number of solid reactors should not be less than 3, since in any other way the effect "Phase" of the early Enzymatic excitation would not carry out its benefits, and there should be one or more mud reactor.
  • productivity of the process of the present invention -APDWDO- increases the separation of the non-degradable but it's not a prior condition.
  • the Process of the Present Invention - APDWDO- has in each of the stages of the Process of Solids a reduction of solid mass that for example the solids that had been placed for approximately 7 days in a digest are approximately 20 days in the next, approximately 14 days in the next and so on.
  • the dwell time in the Solid Digesters, for the elements making it to the exit of the final digester, in other words the elements, which are not digested, hydrolyzed, liquefied or not drained in the DeCFD because of their size, is approximately 2 months.
  • the attached diagram in Figure 1 is named "Global Sketch of the Process” and illustrates the main processes as blocks and the relations and flows between them through arrows.
  • Block #1 represents the Entry Process
  • Block #2 represent the Solid Process that subdivides in sub-blocks representing several reactors
  • Block #3 represents the Mud Process
  • Block #4 represents the Final Solid Process
  • Block #5 represents the Final Gas Process
  • Block #6 represents the Final Mud Process.
  • Arrow #7 represents the flow of solid wastes that are already ground that go from the Entry Process to the Solid Process; Arrows #8 indicates the direction of liquids and small solids dragged from the reactors of the Solid Process to the Mud Process; Arrow #9 indicates mud directed from the Mud Process to the Final Mud Process; Arrows #10 represents the gases extracted from the digester and transferred to the Final Gas Process; Arrow # 1 1 represents the transfer of solid wastes from the solid process to the final solid process, Arrow #12 represents the transfer of combustion gases at high temperature to the Final Mud Process.
  • the Entry Process consists of the following steps, as illustrated in the attached Figure 2 name Entry Process.
  • a) Reception in Hopper b) Grinding c) Sifting d) Reprocess of Grinding e) Optimization of Use of crushing machines.
  • f) Fluidizing and Loading to the Solid Process a) Reception in Hopper: The reception in the hopper is just the simple unloading of the trucks. The Hopper is directly connected to the grinder box, where the wastes arrive through gravity. The Hopper reception has an auxiliary Hopper through which re-circulates the materials coming from Auxiliary Silo of grinding that need to be re-grinded.
  • Crushing The crushing is performed inside crushing machines of the type "Double-Shredder.”.
  • the solids once they pass through the sifter, arrive at the Gathering Chamber that is also the Feeding Chamber to the Container Elevator of the First Solid Reactor.
  • the Solid Processing consists in stationing the solids, fluidized in Broths Process, in successive solid digesters and their gradual transport.
  • Each stage has the same functions and components as illustrated in Figure 3 named "Process of Solids". Their dwell time differs depending on the material in them arid the prevalent biotic reaction.
  • the Digesters of Solids operate in series, which means that the material passes sequentially from one to another.
  • the Enzymatic Stimulation process is activated at each stage, and each stage has it own. The process takes advantage of the spontaneous generation of Process Broths and circulates them in each stage.
  • the mass should be sufficiently fluidized so as to facilitate the biotic reactions and should be sufficiently dry so as to avoid the flotation effect, by which some elements would float and would not be able to reach the base and get extracted and sent to the next stage.
  • Extraction by extraction screw An endless screw located in the vertex of the lower cone and with "penetration" in the solid mass (identified in Figure 3 #24), extracts the same wastes as the rector to introduce them in the DeCFD process.
  • g) DeCFD process (Device of Compression, Friction and Drainage): The DeCFD Process, illustrated in Figure 5 and further detailed and showed in Figure 3#24 has as • objectives: a. To deepen the process of division of the material through friction under pressure produced between the movement of the step screw with step reduction, and the conduction channel that with its perforation generates a bonding effect, and consequently, friction and division.
  • the biodegradation is very sensitive to the conditions of the surroundings: regulation of the temperature, PH and "environment" will allow optimization of the process. Under these conditions there is only very few organic material that does not degrade completely after going through 3 or more digesters within approximately 2 months.
  • the Mud Process is done in the Mud digesters, one (1) to three (3) of them, according to composition of wastes that operate in parallel, which means that the mud can pass indifferently through any of them. Depending on the mixture there can be one (1) or three (3) digesters. This process is illustrated in the attached drawing identified as Figure 4 named "Mud Process.”
  • the Mud Digesters receive the greater part of the drainage directed from the Drainage Directing Device illustrated in Figure 6 which is a also the receiver of the drainage Liquids and small solids originating from DeCFD.
  • the drainage from any of the Solid Digesters are mixed together and with Broth of Process of the same Mud Digesters, and also with Water of Process ( Figure 4 #44) with a PH compensating the PH of the flow. That is, if the originating flow of the Solid Digester is normally Acid, it would get mixed with alkaline water until obtaining the optimal PH. In these mixes, violent changes of PH should be avoided to avoid destroying the bacterial flora.
  • the biodegradation process starts and at its maximum, produces a Biogas composed mainly of Methane and CO 2 , continuing the biodegradation initiated in the Solid Reactors.
  • the biogas is evacuated by the ducts indicated in Figure 4 #48.
  • the average stationing time is 30 days, although by the dynamic of fluids, sedimentation and flotation, the components with less degradation time tend to take less time, and those of slow degradation, much more, since they tend to float while the wastes of the degradation tend to settle once they release their own_biogas.
  • biodegradable wastes Basically they are Plastic, Metals and in smaller parts ceramic, construction wastes and glass that could not be fragmented and extracted in the process of the DeCFD devices. Also some textile waste, wood fragments, covered cardboard, rubbers and leathers.
  • the Final Solid Process is divided in 2: a) Washing b) Conditioning a) Washing:
  • the mass of Solid Wastes passes through a "washing" process with lightly alkaline waters and drained in a DeCFD.
  • the alkaline wash neutralizes the components- Acid Mud- dragged by the solids, leaving them neutral and without mud.
  • the wash is done at more than 75 degrees Celsius with the objective to cut the bacterial processes, specially the pathogens.
  • the metals, rocks, ceramics and glass are separated by gravity, at the bottom of the washing tower.
  • the Solid Wastes Mass at this stage, mainly the plastics, through the DeCFD process drain to the washing water and the wastes it drags.
  • the Biogas generated by the process of Decomposition and the associated combustibles are burned in a chamber or combustor represented in Figure 1 #5 and in Figure 4 #45 to avoid the release of methane, and the greenhouse effect and odors.
  • the heat derived from this combustion is applied to the thermal mud reduction, by which the Inert Mud, the volume reduction, and the process vapors are obtained.
  • Limestone is inserted in the Combustion chamber with the objective of neutralizing the acidity of the combustion gas and generating, on the contrary alkaline gases, which washing will generate Alkaline Process water.
  • the live lime produced and its associated ashes and dregs are ground in mills in order to generate alkaline mud that serves to regulate the PH of the Mud Digester.
  • the reduced mud is in condition to be transferred as Mud Enhancers to low land fills or fertilizers of poor lands, with the advantage of high fertility, optimal PH, and adequate granule.
  • Mud Enhancers This reduced mud, called Mud Enhancers, is characterized like natural humus, binders of sandy grounds, and binders of argillaceous grounds.
  • Each DeCFD Device is made up of the following Basic components. a) Feeding Screw. ( Figure 5 #23, Figure 3 #23) b) Perforated Duct ( Figure 5 #29) c) Squeezing screw (Figure 5 #30) d)Gas bell ( Figure 5 #31) e) Drainage Hopper ( Figure 5 #32) f) Exit for Gases ( Figure 5 #33) g)Exit for Solids ( Figure 5 #34) h) Drainage Exit ( Figure 5 #35)
  • DDD Drainage Directing Device
  • the captured gases which include Methane, are directed to the gas compressor for their injection in the combustion chamber.
  • the gases drag combustibles that are either, condensed in the compressor and re-injected in the Digesters to integrate them to the biodegradation, or continue to be dragged and arrive at the combustion chamber.
  • the circuits are totally hermetic so that the combustibles do not generate pesticides nor have capacity of pathogenic action.
  • the solid wastes, in this instance with low humidity levels are conducted to the Fluidizing Chamber and Feeding of the containers elevator, and by these means to the superior part of the next Solid Digester.
  • the liquid part, which includes dragged solids of small dimension are directed in the Drainage Directing Device (DDD).
  • DDD Drainage Directing Device
  • the conveyer belts and Compressor are activated by motors with hydraulic devices that allow the flow to be diverted in case of a locking that would prevent advancing.
  • the Drainage Directing Device is illustrated in Figure 6 and is the key device of this process.
  • DTD Drainage Treatment Device
  • the Main parts of this device are:
  • the Drainage Directing Device the lightly filtered, viscose and floating organic materials are separated by pouring out the light drainages, viscose, and floating organic material (6 Figure #37). This material is filtered and directed to the Mud Digesters. The floating wastes with pieces of more than 2 mm are milled and injected to the Mud Process.
  • a Duct of Evacuation of Gases (Figure 6 #40) in the upper part allows the evacuation of these while a turbulence protection device (Figure 6 #41) allows the effects of settling and floatation to happen even when a tenuous permanent movement of ingress and egress exists.
  • the Mud reactors While solid fragments of up to 8 cm in width can circulate in the Solid Processor, the Mud reactors will only integrate fragments of no more than 2 mm, for which the fragments dragged with liquids originating from DeCFD by the same duct perforation do not have more than 20 mm in width.
  • the milling process has two objectives: a) To reduce to liquids, or at least minimal fractions, the organic wastes retained by the filters of Drainage Directing Device, making them easily degradable in the Mud Digester. b)To transform the dragged solids into sands, particularly glasses, ceramic and stones.
  • the mud, not applied to' re-circulations is injected into the Mud Digesters along with the milled solids prior measurement and PH regulation, leaving them slightly alkaline if the state of the Mud mass is acid and slightly acid if these were in an alkaline state.
  • a part of the drained mud obtained from the first Drainage Directing Device to the egress of the first DeCFD of the first Solid Reactor is directed to the Fluidizing.and Feeding Chamber below the first container elevator with the objective to humidify the wastes and give an ample bacterial mass to speed up an early process of biodegradation.
  • the re-circulated liquid mass — Broths Process- will include mainly the bacterial flora characteristic of each reactor. That is: in each reactor decomposition will be produced characteristic of the reactor from the same moment of the loading of wastes in the reactor since thanks to the re-circulation of the drainage of the bacterial mass will be too abundant and a delay time will not be required until generating the reproduction to be able to initiate the massive process of decomposition characteristic of each stage, without damage of continuing the reproduction.
  • microorganisms that are developed and the enzymes that segregate are adequate for the existing substratum. When this changes, a certain amount of time is required for the development of the appropriate bacteria and its corresponding enzymes.
  • the more complex organic structures are transformed into simpler chemical substances, thus hydrolyzing the carbon hydrates (polisacarids) into monosacarides, the fats into organic acids and glycerin, and the proteins in amino acids.
  • the more complex structures have slower degradation times until they are completely degraded since they accumulate the times of the successive stages.
  • the enzymes are soluble in water when they have diluted salts or alcohols, even though these in high concentration inhibit their action, which is the reason why fermentation in the production of alcoholic beverages has a limit and does not alcoholyze all the sacarose that contain mosto (unfermented grape juice).
  • the degradation process of the Solid Wastes is not homogenous but takes place in different rhythms depending on the complexity of the material on hand.
  • a characteristic stage of degradation is the hydrolyzation.
  • devices are installed to measure mass, alkalinities, and temperature, such as a canal for the injection of liquids.
  • Two Circuits will circulate water of between 40° and 50° of temperature, one of them, alkaline and the other acid.
  • the Process Water coming from the Washer Reactor, moderately alkaline, will canalize the temperature in liquid phase, and other will re- circulate drained Inert Acids.
  • the other two (2) will circulate water of less than 20°, its origin being the same but having been put through a refrigerating circuit. When the regulation of acidity/ alkalinity is required without the alteration of temperature the refrigerating circuit mentioned above will be deactivated by by-pass.
  • each Solid Reactor will have a circuit of recirculation of liquid between its base and its superior part, with a heat interchanger and a refrigerating radiator and adequate by-pass to produce elevating effects or temperature reduction under neutral PH conditions.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Treatment Of Sludge (AREA)

Abstract

La présente invention concerne un procédé et un équipement destinés au traitement et à l'élimination définitive de déchets solides d'origine domestique. Le procédé et l'équipement peuvent être continus, étanches à l'eau et recevoir les déchets à broyer et tamiser ultérieurement de telle sorte que la matière épaisse est réinjectée dans un procédé de broyage. La matière provenant d'un tamis de fluidification peut être envoyée vers une première étape de digestion anaérobie, puis une partie de la matière sortant de la première étape peut être renvoyée dans la première étape afin d'y être recyclée et l'autre partie peut être envoyée vers la deuxième étape de digestion anaérobie, de même, une partie de la matière obtenue à la fin de chaque étape est recyclée et l'autre partie est envoyée vers l'étape suivante.
PCT/US2006/048606 2005-12-19 2006-12-19 Procede de traitement continu et etanche a l'eau et elimination definitive de dechets solides d'origine domestique, et equipement permettant d'appliquer ce procede WO2007075785A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ARP050105327A AR054716A1 (es) 2005-12-19 2005-12-19 Procedimiento continuo y estanco de tratamiento y disposicion final de residuos solidos de origen domiciliario.
ARP20050105327 2005-12-19

Publications (3)

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WO2007075785A2 true WO2007075785A2 (fr) 2007-07-05
WO2007075785A9 WO2007075785A9 (fr) 2007-08-30
WO2007075785A3 WO2007075785A3 (fr) 2007-11-29

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5464766A (en) * 1994-04-04 1995-11-07 Enzyme Research & Development Corporation Multienzyme powdered composition containing bacteria for treatment of waste
US20050113611A1 (en) * 2003-03-28 2005-05-26 Adams Terry N. Apparatus and process for separation of organic materials from attached insoluble solids, and conversion into useful products

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5464766A (en) * 1994-04-04 1995-11-07 Enzyme Research & Development Corporation Multienzyme powdered composition containing bacteria for treatment of waste
US20050113611A1 (en) * 2003-03-28 2005-05-26 Adams Terry N. Apparatus and process for separation of organic materials from attached insoluble solids, and conversion into useful products

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AR054716A1 (es) 2007-07-11
WO2007075785A9 (fr) 2007-08-30
WO2007075785A3 (fr) 2007-11-29

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