WO2004022510A1 - 熟成コンポスト様物の製造装置及び製造方法 - Google Patents
熟成コンポスト様物の製造装置及び製造方法 Download PDFInfo
- Publication number
- WO2004022510A1 WO2004022510A1 PCT/JP2003/011069 JP0311069W WO2004022510A1 WO 2004022510 A1 WO2004022510 A1 WO 2004022510A1 JP 0311069 W JP0311069 W JP 0311069W WO 2004022510 A1 WO2004022510 A1 WO 2004022510A1
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- WIPO (PCT)
- Prior art keywords
- product
- organic waste
- compost
- aged compost
- heating
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/95—Devices in which the material is conveyed essentially vertically between inlet and discharge means
- C05F17/955—Devices in which the material is conveyed essentially vertically between inlet and discharge means the material going from platform to platform
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/001—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors
- F26B17/003—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors with fixed floors provided with scrapers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/22—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being vertical or steeply inclined
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/16—Treatment of sludge; Devices therefor by de-watering, drying or thickening using drying or composting beds
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Definitions
- the present invention relates to an apparatus and a method for treating an organic waste such as biologically treated sludge and livestock to produce a product having a bad odor similar to an aged compost in a short time.
- the composting method is a method of fermenting organic waste, and the resulting aged compost has odor components decomposed, but the organic matter is stabilized and remains sufficiently, and it is easy to handle. Fertilizer. In order to obtain such aged compost, a long-term fermentation of several tens to one hundred and several tens days is required.
- the organic waste is heated and dried with a drying device using hot air, etc., and the moisture in the organic waste is removed by evaporation to obtain a dried product with a water content of 30 to 0%.
- a carbonization method in which waste is heated and carbonized, and heating is continued after the water in the organic waste is completely evaporated, and the organic matter is carbonized by maintaining a high temperature of 200 to 900 ° C. Can be processed in a short time.
- Heat-dried organic waste products simply evaporate water and produce relatively good properties when the raw materials are raw garbage, but sludge generated from wastewater and biological treatment of waste When raw materials are used as raw materials, the products still contain easily decomposable organic substances and odorous components. For this reason, it is clearly inferior in terms of odor and handleability as compared with aged compost, and problems remain when returning to agricultural land.
- the organic matter is carbonized and decomposed, so it has no significance as an organic fertilizer even as a soil conditioner.
- the weight loss rate is so large that the salt in the raw material is concentrated and the salt concentration in the processed product is high.
- dioxin since some of the organic matter is burned, dioxin There is also a problem that a problem occurs.
- Japanese Patent Application Laid-Open No. 2001-130990 proposed a method and apparatus for producing an aged compost-like product by heating and drying an organic waste and then heat-treating it at 100 to 200 ° C. With this method and apparatus, the organic waste is dried by heating, and heating is continued at a relatively low temperature of 100 to 200 ° C. There is no odor, organic fertilizer remains sufficiently, and the salt content is not so high. It is possible to obtain a product similar to aged compost which is effective as organic fertilizer.
- Compost from ordinary garbage is obtained as a result of the decomposition of organic matter by microorganisms (ie, fermentation), and the organic matter is stabilized. Therefore, the rate of decomposition when put into the soil is slow, and therefore it is not rapidly decomposed and does not lead to an oxygen-deficient state. In addition, odor components have been removed and there is almost no odor.
- the composting method requires a long period of production because the organic substances are stabilized by the action of microorganisms (fermentation) and odor components are removed.
- the aged compost-like product produced in Japanese Patent Application Laid-Open No. 2001-130990 is a material obtained by heating and decomposing after drying, having no odorous components and stabilizing organic substances, like the aged compost obtained by the composting treatment method.
- an organic waste similar to an aged compost without a fermentation process is obtained by heating, drying, heat-treating and thermally denaturing an organic waste as a raw material.
- Fertilizer can be obtained in a relatively short time (less than a day) by relatively low-temperature treatment.
- Japanese Patent Application Laid-Open No. 2001-130990 discloses an apparatus for producing an aged compost-like product, in which a raw material (organic waste) is charged into a horizontal cylindrical heating vessel, heated and dried, and further heat-treated. It is a batch processing type device that discharges compost-like material).
- this aged compost-like product manufacturing apparatus if heating is carried out by the direct heating method, there is a risk of ignition.In general, a jacket is provided around the heating vessel, and heat medium oil is circulated in the jacket. An indirect heating method of heating is employed.
- Japanese Patent Application Laid-Open No. 2002-28608 discloses that the temperature of an object to be treated during the treatment is detected when the organic waste is heated and dried and then heat-treated to produce an aged compost-like product. There has been proposed a method for stably producing a desired high-quality product by setting a processing time based on the above. Purpose of the invention
- a first aspect of the present invention is an apparatus for processing organic waste to produce a product without odor similar to aged compost in a short period of time, capable of continuous processing and having a large heat transfer area. Therefore, an object of the present invention is to provide an apparatus for producing an aged compost-like material capable of making the apparatus compact.
- the second aspect is an equipment that treats organic waste to produce a product without odor similar to aging compost in a short period of time.
- An object of the present invention is to provide a compost-like material manufacturing apparatus.
- An aged compost-like product produced by heating and drying an organic waste and then heat-treating the same according to the method described in JP-A-2001-130990 can be used as an organic fertilizer. Be converted to In this case, for use as an organic fertilizer, it is desirable that the aged compost-like material is in the form of granulated granules in terms of handleability, etc., but among organic wastes, especially organic waste such as animal dung
- the aged compost-like product obtained by heating is usually in the form of fine powder having a particle size of 1 mm or less, and therefore has problems such as scattering and dust generation, and is poor in handleability.
- the third aspect aims to provide a method for producing an aged compost-like product having high commercial value, which is excellent in handling properties as an organic fertilizer.
- Aged compost-like material produced by heat-drying and heat-treating organic waste according to the method described in Japanese Patent Application Laid-Open No. 2001-130990 contains organic fertilizer. It is desired that the three components of nitrogen, phosphorus, and potassium, which are active ingredients for plant growth, are contained in a well-balanced manner.
- the aged compost-like material obtained from organic waste such as biologically treated sludge and animal dung contains about 5% (percentage by dry weight) of nitrogen and phosphorus components, which is sufficient as organic fertilizer.
- the content of potassium is less than 0.5% (percentage by dry weight), when used as an organic fertilizer, a chemical fertilizer containing additional potassium is used to capture the insufficient amount of potassium. Must be used together.
- the fourth aspect aims to provide a method for producing an aged compost-like product having excellent properties as an organic fertilizer and high commercial value.
- the first compost-like ripened compost-like manufacturing equipment has a vertical port with an inlet at the top for the organic waste to be treated and an outlet at the bottom for the heat-treated material. Heating the object to be processed, which is provided in the mold so as to be in contact with the object to be processed. And a moving means for moving the object to be treated in the container from the input port to the discharge port, and continuously heating the organic waste input from the input port. It is characterized by drying and further heat-treating at 100 to 200 ° C.
- the organic waste continuously charged from the inlet of the container is transferred to the outlet from the inlet of the container by the heat transfer panel in the process of being transferred to the outlet. It is dried by heating and evaporates water gradually. By heating even after the water has completely evaporated, the temperature of the object to be treated in the container gradually increases to 100 to 200 ° C, and thermal denaturation of organic substances occurs. The material is continuously removed from the outlet.
- the heat transfer panel for heating the object to be treated in this container is provided in a multi-stage or spiral shape in the container, so that a large heat transfer area can be secured. High heat transfer efficiency and heating efficiency, and good granulation. For this reason, with the equipment of the first aspect, it is possible to increase the capacity of the heating vessel, and by increasing the capacity of the vertical vessel, we aim to make the equipment compact and increase the production volume per equipment installation area be able to.
- the conventional outer jacket-type horizontal cylindrical device has a maximum raw material supply amount of about 4 t / day, but according to the first aspect, the production amount is 100 t / day.
- An apparatus of the above scale can be realized.
- the organic waste is dried by heating, and then heated to further heat-transform the organic waste to sufficiently convert the organic waste. It is difficult to control to stabilize the product and to obtain a high-quality product without odor.
- a temperature detector is provided near the discharge port, and the state of thermal transformation of the organic matter is judged based on the temperature measured by the temperature detector, and the measured temperature is determined by the temperature control means. It is preferable to control the temperature so that the organic matter in the material to be treated is thermally denatured, and a matured compost-like product of stable quality without odor from the outlet is continuously produced as a product. You will be able to take it out.
- the equipment for manufacturing the aged compost-like material in the second aspect is a container equipped with an inlet for organic waste and an outlet for heat-treated material, and the object to be treated in the container is heated and dried. And Further, in a compost-like material manufacturing apparatus having a heating means for performing heat treatment at 100 to 200 ° C., the organic waste is continuously supplied from the input port, and the heat-treated product is supplied from the discharge port.
- a continuous compost-like material manufacturing apparatus for continuously discharging wherein a temperature detector is provided in the vicinity of the discharge outlet, and a temperature control for controlling a measured temperature of the temperature detector to a predetermined value. Means is provided.
- the second composting equipment for aged compost-like products continuously supplies organic waste from the container inlet.
- the supplied organic waste is heated and dried by the heating means in the process of being transferred from the inlet to the outlet of the container, and the water is gradually evaporated.
- the temperature of the object to be treated in the container gradually increases to 100 to 200 ° C., and thermal transformation of organic substances occurs.
- the status of the thermal metamorphism of this organic material is determined based on the temperature measured by the temperature detector installed near the discharge port, and the temperature control means controls this measured temperature to a predetermined temperature. I do. For this reason, the organic matter in the material to be treated can be surely thermally denatured, and an aged compost-like material of stable quality without odor can be continuously taken out as a product from the outlet.
- Etc. can be used.
- the method for producing an aged compost-like product of the third aspect is a method for producing an aged compost-like product by heating and drying an organic waste, followed by heat treatment, wherein a polymer is added to the organic waste. Is added, mixed, heated and dried, and then heat-treated.
- the polymer is added to and mixed with the organic waste to enhance the granulation property during the heat treatment, and the aging compost has excellent granularity, has no problems of scattering and dust generation, and has excellent handling properties. Things can be manufactured.
- the present inventors have studied the granulation properties of organic waste during heating. As a result, sludge dewatered cakes are relatively excellent in granulation properties, whereas organic waste such as animal dung is relatively excellent.
- the aged compost-like material made from the material is not granulated, so when dewatering sludge, It was found that the fact that the polymer was added to the animal waste, while the polymer was not added to the animal dung, was a factor in the granulation quality, and the polymer was added to the organic waste and mixed. A method for increasing graininess was invented.
- the aged compost-like product produced by the third aspect method is granular, and therefore has no problem such as deterioration of the working environment due to dust generation or a decrease in yield due to scattering, and is excellent in handling.
- the method for producing an aged compost-like product of the fourth aspect is a method of producing an aged compost-like product by heating and drying an organic waste, followed by heat treatment. After adding and mixing the components, they are dried by heating and then heat-treated.
- the potassium component which is lacking in the aged compost-like material, is added and mixed in advance with the organic waste as a raw material, so that the three components of nitrogen, phosphorus, and lithium, which are the active ingredients of the fertilizer, are balanced.
- the contained aged compost-like product can be obtained. Therefore, such an aged compost-like product does not require the use of an additional potassium-containing chemical fertilizer when used as an organic fertilizer, and the fertilization time is greatly reduced.
- a calcium component to the raw organic waste before the heat treatment. That is, potassium can be supplemented by adding and mixing potassium to the aged compost-like product obtained by the heat treatment, but in this case, potassium is simply mixed with the aged compost-like product. As a result, it is eluted immediately upon contact with water, and it is not possible to obtain the delayed action as an organic fertilizer.
- a potassium component is added to the organic waste as a raw material and heat treatment is performed, so that the added potassium is converted into a humic substance in the organic waste by heat treatment. Combined with the nitrogen-phosphorus component in the resulting aged compost-like product to obtain a slow-acting organic fertilizer.
- FIG. 1 is a cross-sectional view showing an embodiment of an apparatus for producing an aged compost-like product of the first aspect.
- FIG. 2 is a cross-sectional view showing another embodiment of an apparatus for producing an aged compost-like product of the first aspect.
- FIG. 3 is a cross-sectional view showing an embodiment of an apparatus for producing an aged compost-like product of the second aspect.
- FIG. 4 is a sectional view showing an example of an apparatus for producing an aged compost-like material suitable for implementing the third and fourth aspects. Detailed description
- FIG 1 and 2 are cross-sectional views showing an embodiment of an apparatus for producing an aged compost-like product of the first aspect.
- reference numeral 1 denotes a vertical cylindrical heating vessel, which is provided with an inlet 2 for raw materials (organic waste) at an upper part and an outlet 3 for a product (aged compost) at a lower part.
- Each of the heat transfer plates 4 (4A to 4F) has a hollow disk shape, and the heat transfer medium oil heated by the heat transfer oil poiler 5 is supplied from the heat transfer plate 4A to the heat transfer plates 4B and 4F. After flowing sequentially to C, 4D, 4E, and 4F, it is configured to circulate to the heat transfer oil poiler 5.
- a rake 6 (6A to 6G) for moving an object to be processed is provided above the bottom surface 1G of each of the heat transfer panels 4A to 4F and the vessel 1.
- Reference numeral 7 denotes a rotating shaft of the rake 6 (6A to 6G), which is driven to rotate by a motor 7M.
- the heat transfer plates 4A, 4C, and 4E are annular with an opening 4a in the center, and 4B, 4D, and 4F are the inner walls of the container 1. It has a small disk shape with a gap 4b formed between it and. Then, the rotating shaft 7 of the rake 6 passes through the openings 4a of the heat transfer plates 4A, 4C, 4E and the center of the heat transfer plates 4B, 4D, 4F to reach the bottom 1G of the container 1. It is provided as follows.
- the raw material input from the inlet 2 is rolled by the rakes 6A to 6F on the heat transfer panels 4A to 4F and the rake 6G on the bottom of the vessel 1G, and the transmission is performed.
- the raw material is conveyed from a raw material hopper 8 by a conveyor 9 such as a screw conveyer, and is charged into the container 1 ⁇ from the input port 2 of the container 1.
- a conveyor 9 such as a screw conveyer
- the outlet of the conveyor 9 is connected to the inlet 2 in an airtight manner.
- 9 M is a drive motor for the conveyor 9.
- the processed product product, ie, aged compost-like material
- a part of the discharged processed material can be mixed with the raw material and used to adjust the water content of the raw material.
- a temperature detector 11 In the vicinity of the discharge port 3 in the container 1, a temperature detector 11 is provided.
- the measured value of the temperature detector 11 is input to the controller 12, and the controller 12 operates the heating medium oil poiler 5 based on the measurement result (the heating temperature of the heating medium oil, that is, The heating temperature of the object to be treated in the container 1), the rotation speed of the motor 9M of the conveyor 9 (the supply speed of the raw material into the container 1), or the rotation speed of the rotation motor 7M of the rake 6 (in the container 1)
- the transfer speed of the object to be treated ie, the residence time
- reference numeral 13 denotes a gas outlet for discharging gas in the container 1, and a suction blower is provided. Then, external air is introduced from the outlet 3 at the lower part of the container 1 or an air inlet (not shown), and the exhaust gas is discharged from the gas outlet 13.
- This exhaust gas contains moisture and odorous components, and is sent to an exhaust gas treatment device for wet cleaning, combustion deodorization, activated carbon deodorization, chemical cleaning deodorization, biological deodorization, etc., for treatment. .
- the raw material (organic waste) in the raw material hopper 8 is transported by the conveyor 9 and continuously charged from the charging port 2 of the container 1.
- the raw material charged into the container 1 is first rolled by the rake 6A on the uppermost heat transfer plate 4A, and is indirectly heated by the heat transfer oil flowing through the heat transfer plate 4A, and It is granulated and gradually falls onto the second-stage heat transfer plate 4B, due to the central opening 4a force of the heat transfer plate 4A.
- the workpiece to be dropped on the heat transfer plate 4B is similarly rolled by the rake 6B, indirectly heated by the heat transfer oil flowing through the heat transfer plate 4B, granulated, and gradually transferred.
- the object to be treated in the container 1 is rolled on the heat transfer plate, and is indirectly heated on each heat transfer plate while being sequentially dropped and moved onto the lower heat transfer plate. Granulated with.
- the heat treatment in the container 1 evaporates the moisture in the organic waste to be dried, and further heats the organic waste at 100 to 200 ° C.
- the odor components in the waste are volatilized or decomposed, and the organic matter undergoes thermal denaturation to give an aged compost-like product without odor.
- the obtained aged compost-like product falls from the heat transfer panel 4F onto the bottom 1G of the container 1, is rolled by the rake 6G, is continuously carried out from the discharge port 3, and is discharged by the conveyer 10. You.
- the temperature of the object to be treated when the heat treatment is completed thereafter depends on the quality of the raw material and the level of product quality such as the required odor component concentration, but the temperature of the object to be treated is 110 to 200 ° C. ° C, particularly preferably 150 to 200 ° C. In this temperature range, water is completely evaporated and removed, and odor components are also volatilized and decomposed, while a good mature compost-like product can be obtained.
- the temperature detector 11 is provided near the outlet 3 of the container 1, and the measured temperature of the temperature detector 11, that is, the temperature of the discharged workpiece, indicates the end of the heat treatment.
- the controller 12 sets the following predetermined temperature [1] to [3] so that the predetermined temperature is indicated, preferably 110 to 200 ° C, more preferably 150 to 200 ° C. Perform control.
- the supply speed of the raw material to the container 1 is controlled by, for example, controlling the number of revolutions of the drive motor 9M of the raw material transport conveyor 9.
- the heating temperature of the object to be treated in the container 1 is controlled by controlling the heating temperature of the heat medium oil boiler 5 or the like.
- the above controls [1] to [3] may be performed in combination of two or more.
- the temperature of the object to be treated near the outlet 3 of the container 1 is detected, and the supply speed of the raw material and the object to be treated in the container are adjusted so that the temperature becomes a predetermined temperature indicating the end of the heat treatment.
- Automatic control of transfer speed (residence time in container), heating temperature, etc. prevents shortage of heat treatment, that is, deterioration of product quality due to insufficient heat treatment, or waste of heating energy due to over heat treatment As a result, products of good quality can be obtained stably and reliably.
- the temperature detector 11 may be a means for directly measuring the temperature of the object to be processed, such as a thermocouple, or a means for indirectly measuring the temperature of the object to be processed, such as an infrared thermometer. It can be used, but is not limited to this.
- the temperature detector 11 is provided near the discharge port to accurately judge the end of the heat treatment, but the installation position of the temperature detector 11 is not limited to the container 1 as shown in Fig. 1, The outer wall of the container 1 may be used as long as the temperature of the object can be measured.
- the position of the temperature detector 11 is preferably closer to the discharge port 3, but may be a position where the heating of the object to be processed in the container is expected to be almost completed.
- the temperature of the transfer oil is maintained at 100 to 300 ° C., and preferably at 150 to 200 ° C., before drying is completed. After the drying process is completed, the temperature of the object to be processed is kept at 100 to 200 ° C., and good heating is performed.
- the raw materials are continuously put into the container 1, heated and dried in the container 1, further heat-treated at 100 to 200 ° C, granulated, and matured with stable quality.
- Compost-like material can be continuously taken out as a product.
- this heat treatment can be performed in a plurality of stages by the heat transfer plates 4 provided in multiple stages in the vessel 1, and even if the capacity of the vessel 1 is increased, the heat transfer area per object to be treated is sufficient. As a result, efficient heating and granulation can be performed.
- the heat transfer panel is installed horizontally, and the rake 6 moves the object in the container to the discharge port side.However, the heat transfer panel is installed slightly inclined from the horizontal, It is also possible to adopt a configuration in which the object to be processed flows down on the inclined surface of the panel and falls sequentially on the lower heat transfer panel.
- the device shown in FIG. 2 is provided with a spiral heat transfer plate as a heat transfer plate.
- members having the same functions as those shown in FIG. 1 are denoted by the same reference numerals.
- the spiral heat transfer plate 20 provided in the container 1 is provided from the vicinity of the raw material input port of the vertical container 1 to the lower part of the container 1.
- the heat transfer panel 20 is driven to rotate by a motor 7M and a rotating shaft 7.
- the heat transfer plate 20 is hollow, and is configured so that the heat transfer oil heated by the heat transfer oil boiler 5 circulates inside.
- a hole for supplying the heat transfer medium oil to the upper part of the heat transfer panel 20 is provided at the upper part of the rotating shaft 7.
- a hole for taking out the heat transfer oil from the lower part of the heat transfer panel 20 is provided in the lower part of the rotating shaft 7.
- the raw material (organic waste) charged from the inlet 2 of the container 1 rolls on the inclined surface on the heat transfer plate 20 from the start end of the spiral heat transfer plate 20. While sliding down, it is heated and granulated by the heat transfer oil flowing in the heat transfer plate 20 and dried by the heat treatment.
- the aged compost-like product produced by heat treatment at 100 to 200 ° C. reaches the bottom 1 G of the container 1, and is stirred and moved by the rake 6 on the bottom 1 G of the container 1 to be discharged. It is discharged as a product from 3. ⁇
- a temperature detector 11 is provided near the outlet 3 of the container 1, and a controller (not shown) controls the temperature of the temperature detector 11 so that the measured temperature becomes a predetermined temperature.
- a controller controls the temperature of the temperature detector 11 so that the measured temperature becomes a predetermined temperature.
- the spiral heat transfer plate 20 is provided in the vertical direction of the vertical container 1, even if the capacity of the container 1 is increased, the heat transfer area per object to be treated is increased. Can be sufficiently secured, so that efficient heating and granulation treatment can be performed.
- the inclination angle of the spiral heat transfer plate is not particularly limited, and is appropriately set according to the capacity of the container.
- a stirring means for stirring the object to be processed on the spiral heat transfer plate 20 may be provided.
- Organic waste to be treated by the first-aspect equipment includes sewage sludge, surplus sludge, digestive sludge, septic tank sludge, and other biologically treated sludge generated in the biological treatment of wastewater and waste. Sludge obtained by dewatering garbage, and garbage containing garbage. According to Aspect, by heating and drying such organic waste such as biologically treated sludge, and then heat-treating it, there is almost no odor, organic fertilizer components remain sufficiently, and the salt content is not so high. Therefore, an aged compost-like product that can be effectively used as an organic fertilizer and has excellent handleability can be obtained by continuous production using a large vertical apparatus.
- the raw material was organic waste containing organic sludge and garbage, with a moisture content of 85% and a loss on ignition of 82%. Weight before heat drying of the material is lm 3 per about 1 t.
- This raw material was continuously heated by using the equipment shown in Fig. 1 (however, the heat transfer panel was provided in 11 stages) to produce an aged compost-like product.
- the vessel had an internal volume of 28 m 3 (height 8 m, diameter 2 m), and the heat transfer panels were arranged in 11 stages at intervals of about 0.5 m. Heat transfer oil heated by a heat transfer oil boiler was circulated in the heat transfer panel.
- the raw materials were continuously supplied at 1000 kg / hr, and the respective heat transfer plates were stirred with a rake, and the product was taken out from the discharge port at 160 kg / hr.
- the temperature of the heat transfer oil was adjusted in the range of 200 to 220 ° C so that the measured temperature of the temperature detector was in the range of 150 to 160 ° C.
- organic waste can be continuously processed to efficiently produce a product having no odor similar to aged compost. it can.
- the vertical heating vessel can be easily enlarged, and as a result, the equipment can be made compact and the production per area of equipment installation can be reduced. The amount can be increased.
- FIG. 3 is a cross-sectional view showing an embodiment of the compost-like product manufacturing apparatus of the second aspect. You.
- reference numeral 21 denotes a horizontal cylindrical heating vessel having a raw material (organic waste) input port 22 at an upper portion on one side in the horizontal direction and a product (aged compost) at a bottom portion on the other end.
- a stirrer 24 for agitating the object to be treated (not shown) inside and moving it from the inlet 22 to the outlet 23 to push it out.
- the stirrer 24 includes a rotating shaft 24B provided with stirring blades 24A, and a motor 24M for rotating the rotating shaft 24B.
- a jacket 25 is provided around the container 21, and the heat medium oil 27 heated by the heat medium oil boiler 26 is circulated in the jacket 25 so that the object to be treated in the container 21 is circulated. It is configured to heat.
- the raw material is conveyed from the raw material hopper 28 by the conveyor 29 and is charged into the container 21 from the input port 22 of the container 21.
- 29 M is a drive motor for the conveyor 29.
- the processed product product, that is, aged compost-like product dried and heat-treated in the container 21 and discharged from the discharge port 23 is transferred to the product hopper 31 by the conveyor 30 and stored therein.
- a temperature detector 32 is provided near the outlet 23 in the container 21.
- the measured value of the temperature detector 32 is input to the controller 33, and the controller 33 determines the operating conditions of the heating medium oil boiler 26 (heating temperature of the heating medium oil, That is, the heating temperature of the object to be treated in the container 21), the rotation speed of the motor 29M of the conveyor 29 (the supply speed of the raw material into the container 21), or the rotation of the motor 24M of the agitator 24.
- the number transfer speed of the object to be treated in the container 21 is controlled.
- a blower (not shown) for exhausting the gas in the power container is provided, and the exhaust gas is sent to the exhaust gas treatment device by the blower.
- the raw material (organic waste) in the raw material hopper 28 is transported by the conveyor 29 and is continuously charged from the charging port 22 of the container 21.
- the raw material charged into the container 21 is stirred by the stirrer 24 in the container 21 and the heat transfer oil 27 while gradually moving from the input port 22 side to the discharge port 23 side.
- Aged compost-like material obtained by the indirect heating is continuously discharged from the discharge port 23, transferred to the product hopper 31 by the conveyor 30 and stored therein.
- the temperature of the organic waste to be treated is less than 10 oC, but the water is If heating is continued after complete evaporation and removal, the temperature of the material to be treated will rise to 1 oo ° C or more. Thereafter, if the heating is further continued, the removal of odor components and the decomposition of organic substances proceed with the rise in temperature, and an aged compost-like product having almost no odor can be obtained.
- the temperature of the object to be treated when the heat treatment is completed thereafter depends on the quality of the raw material and the level of product quality such as the required odor component concentration, but the temperature of the object to be treated is 110 to 200 ° C. ° C, particularly preferably 150 to 200 ° C. In this temperature range, water is completely evaporated and removed, and odor components are also volatilized and decomposed, while a good mature compost-like product can be obtained.
- a temperature detector 32 is provided near the outlet 23 of the container 21 and the measured temperature of the temperature detector 32, that is, the temperature of the discharged workpiece is determined as the end of the heat treatment.
- the controller 33 sets the following temperature [1] to [3] to a predetermined temperature, preferably 110 to 200 ° C, more preferably 150 to 200 ° C. Perform control.
- the supply speed of the raw material to the container 21 is controlled by, for example, controlling the rotation speed of the drive motor 29 M of the raw material transport conveyor 29.
- the heating temperature of the object to be treated in the container 21 is controlled by controlling the heating temperature of the heat medium oil boiler 26 or the like.
- the above controls [1] to [3] may be performed in combination of two or more.
- the temperature of the material to be treated near the outlet 23 of the container 21 is detected, and the supply speed of the raw material and the material to be treated Good quality by automatically controlling the material transfer speed, heating temperature, etc. to prevent excessive or insufficient heat treatment, that is, decrease in product quality obtained due to insufficient heat treatment, or waste of heating energy due to excessive heat treatment.
- Product can be obtained stably and reliably.
- thermometer 32 There is no particular limitation on the temperature detector 32. Or a means for indirectly measuring the temperature of the object to be treated, such as an infrared thermometer.
- the temperature detector 32 is installed near the discharge port in order to accurately judge the end of the heat treatment, but the installation position of the temperature detector 32 is limited to the inside of the container 21 as shown in Fig. 3. Instead, the outer wall of the container 21 may be used as long as the temperature of the object can be measured.
- the position where the temperature detector 32 is installed is preferably closer to the outlet 23, but may be a position where heating of the object to be processed in the container is expected to be almost completed.
- the stirrer 24 stirs the object in the container 21 and transfers the object from the inlet 22 to the outlet 23. It is preferable to use a Ripon-type stirrer or the like in addition to the stirring blade 24A having an angle as shown in FIG. Alternatively, the bottom surface of the container 21 may be provided with an inclination so that the object to be processed is transferred to the discharge port side by stirring.
- FIG. 3 shows an example of an embodiment of an apparatus for producing an aged compost-like material of the second aspect, and the apparatus of the second aspect is not limited to the illustrated one. .
- the apparatus of the present invention is not limited to the apparatus in which the heating and drying and the subsequent heat treatment are performed in the same heating vessel, but may be the apparatus in which the heating and drying and the heat treatment are performed in separate vessels. good.
- thermoelectric container it is also possible to continuously supply the raw materials to the drying container to continuously remove the dried product, continuously supply the dried product to the heat treatment container, and continuously remove the product.
- temperature detectors are provided near the outlet of the drying container and near the outlet of the heat treatment container, respectively, so that each measured temperature becomes a predetermined value, that is, the temperature near the outlet of the drying container is 100 ° C and the heat treatment container
- the feed rate of the raw material or the dried material, the transfer speed of the material to be processed in each container, and the temperature so that the temperature near the outlet is 110 to 200 ° C, preferably 150 to 200 ° C What is necessary is just to control the heating temperature of each container.
- Organic waste to be treated by the second-aspect equipment includes sewage treatment sludge, surplus sludge, digested sludge, septic tank sludge, and other biological treatment sludge generated in the biological treatment of wastewater and waste.
- the sludge obtained by dewatering the wastewater, and the waste containing garbage, etc. are mentioned.
- organic waste such as biologically treated sludge is heat-dried and then heat-treated.
- the raw material was organic waste containing organic sludge and garbage, with a moisture content of 85% and a loss on ignition of 82%.
- the weight of this raw material before heating and drying is about 1 t / m 3 .
- This raw material was continuously heat-treated with the apparatus shown in Fig. 3 to produce an aged compost-like product.
- the raw material was continuously supplied at 250 kg Zhr, the inside of the vessel was stirred, and the product was taken out from the discharge port at 30 kg / hr.
- the moving speed (residence time) of the object in the container was about 20 hours.
- the temperature of the heat transfer oil was adjusted in the range of 200 to 210 ° C so that the measured temperature of the temperature detector was in the range of 160 to 170 ° C.
- an aged compost-like product having almost no odor and having the same quality as that of an aged compost-like product manufactured by a conventional batch processing type apparatus can be produced by continuous processing.
- Example 2-1 the temperature of the heat transfer oil was kept constant at about 200 ° C., and the feed rate of the raw material was set to 200 to 300 ° C. so that the measured temperature of the temperature detector became a predetermined value.
- Aged compost-like material was produced in the same manner, except that it was adjusted in the kg / hr range. Aged compost-like products having almost the same quality and having the same quality as aged compost-like products produced by a conventional batch processing type device could be produced by continuous processing.
- Example 2-1 the temperature of the heat transfer oil was kept constant at about 200 ° C, and the moving speed (residence time) of the object to be treated in the container was adjusted so that the measured temperature of the temperature detector became a predetermined value.
- Aged compost-like products were produced in the same manner, except that ⁇ was adjusted within the range of 15 to 24 hours. Aged compost-like products having the same quality as the same can be produced by continuous processing.
- the size of peripheral equipment such as storage hoppers for raw materials and products, exhaust gas treatment equipment, etc., is reduced, and equipment costs are reduced. It can be manufactured efficiently.
- the organic waste is heated and dried, and this drying process causes the water in the organic waste to evaporate gradually. Even after the water content is less than 1% and the drying is completed, the heating is continued at a temperature of 100 to 200 ° C., more preferably an organic waste.
- the temperature of the organic waste to be treated is less than 100 ° C, but the water is completely If heating is continued even after evaporation, the temperature of the object to be treated rises to 100 ° C or more. If the object is maintained in this state for, for example, about 3 to 6 hours, the amount of organic matter in the object begins to decrease. When the heating is continued until the organic matter is reduced by about 3 to 20%, an aged compost-like substance having almost no odor can be obtained.
- the rate of reduction of organic matter suitable for making this product after heating ends depends on the type of organic waste to be treated.For example, in the case of excess sludge of activated sludge, it is relatively reduced to 5 to 20%. The rate of decrease is relatively small, at 3 to 10% for digested sludge.
- the heating temperature during the heat treatment after the completion of the heating and drying step is preferably 100 to 200 ° C., and more preferably 150 to 200 ° C. Within this temperature range, water is completely evaporated and the odorous components are volatilized and decomposed, but the organic matter is not carbonized, and a good aged compost-like product can be obtained.
- the time required for heating and drying and heat treatment varies depending on the properties of the raw materials to be treated, the form of introduction into the drying vessel, the specifications of the heating device, operating conditions, etc.
- the time is 10 to 15 hours, and the subsequent heat treatment time is about 3 to 6 hours.
- the product obtained has almost no odor, the organic fertilizer components remain in the + minutes, the salt content is not so high, and the product is similar to aged compost.
- FIG. 4 is a system diagram showing an embodiment of an apparatus for producing an aged compost-like product suitable for implementing the third and fourth aspect methods.
- heating drying and heat treatment are performed by indirect heating using an indirect heating device.
- the indirect heating device of FIG. 4 circulates the medium oil 42 through the circulation path of the heating vessel 41 having a double wall structure so that the heating medium circulates, and indirectly heats the internal raw material 40. It is a thing.
- the medium oil 42 is heated by the heat exchanger 43 and circulates in the circulation path of the heating vessel 41.
- the organic waste is introduced from the upper inlet (not shown) of the heating vessel 41 and is stirred by the stirring blades 45 by the rotation of the rotating shaft 44 and heated by the medium oil 42 to ripen the product.
- the compost-like material is taken out from the bottom outlet (not shown) of the heating vessel 41.
- Reference numeral 46 denotes a drive motor for the rotating shaft 44.
- the raw material 40 of less than 100 ° C before the drying is completed is maintained at 100 to 200 ° C after the drying is completed, and good heating is performed. .
- an exhaust gas containing volatile organic substances is generated, and this exhaust gas is taken out from an exhaust port (not shown) and separately treated.
- a polymer in producing such an aged compost-like product, is added to and mixed with the raw material organic waste, and then subjected to a heat treatment directly or after a dehydration operation.
- this polymer either a natural polymer or a synthetic polymer may be used, or both may be used in combination.
- the natural polymer starch, chitosan, and the like can be used.
- the synthetic polymer include a non-ionic polymer such as polyacrylamide and polymethacrylamide, an a-on polymer such as polyacrylic acid, and a copolymer of acrylamide and acrylic acid, and (meth) atalyloyloxy.
- Cationic polymers such as copolymers of shetyltrimethylammonium chloride and acrylamide; (meth) acryloyloxhetyltrimethylammonium chloride, acrylic acid and acrylamide
- An amphoteric polymer such as a copolymer can be used. These may be used alone or in combination of two or more.
- the polymer is preferably used in the form of a liquid such as an aqueous solution, a dispersion, or an emulsion from the viewpoint of adding and kneading the organic waste, and the polymer concentration in the aqueous solution is about 0.1 to 1.0% by weight. Preferably, there is.
- a dispersion or emulsion it can be used as it is or as an aqueous solution.
- the amount of the polymer added to the organic waste is appropriately determined according to the solid concentration of the organic waste. For example, in the case of organic sludge having a solid concentration of about 2%, dehydration by adding a polymer having a dry weight ratio of about 0.6 to 1.5% is required to increase the solid concentration. It is necessary, and the polymer remaining in the dewatered sludge after the dewatering operation will also have the granulation effect during heating.
- the polymer is sufficiently homogeneously mixed with the organic waste.
- a mixing tank is provided separately from the organic waste heat treatment equipment, and the polymer is added to the organic waste and mixed. After that, it is preferable to carry out the heat treatment directly or after the dehydration operation by introducing the mixture into the heat treatment apparatus.
- the heat treatment equipment is equipped with sufficient stirring means for uniform mixing.
- the organic waste and the polymer may be charged into the heat treatment apparatus, and the heating may be started after the organic waste and the polymer are sufficiently stirred and mixed in the apparatus 1 before the heating. .
- the mixture obtained by adding and mixing the polymer to the organic waste is heated under stirring as described above, first dried, and then heat-treated to obtain an aged compost-like product. Good granulation is performed at the time of heating and stirring, and a method for producing an aged compost-like product that is granular and has excellent handleability is obtained.
- the particle size of the aged compost-like product is not particularly limited, it is preferable that the average particle size is about 2 to 5 mm in terms of handleability as an organic fertilizer.
- a potassium component is added to and mixed with the organic waste as a raw material, and then subjected to a heat treatment.
- the power rim component examples include a power rim compound and a substance containing a power rim at a high concentration.
- the potassium compound powders such as potassium sulfate and potassium chloride generally used as chemical fertilizers are suitable.
- a substance containing potassium at a high concentration one containing no harmful components to plants is preferable, and food waste such as potato moss can be used.
- the amount of the hot lime component added to the organic waste there is no particular limitation on the amount of the hot lime component added to the organic waste.
- the amount of potassium added to the resulting aged compost-like product is 2 to 5% by weight (dry weight ratio). It is preferable because an aged compost-like product containing three components of nitrogen, phosphorus, and potassium in a well-balanced manner can be obtained.
- the organic waste contains about 50 to 85% of water than the low water content.
- the organic waste has a relatively high water content.
- the water rim component may be added and mixed as a solution such as an aqueous solution.
- the potassium component is sufficiently uniformly mixed with the organic waste similarly to the polymer described above. Therefore, a mixing tank is provided separately from the organic waste heat treatment device, and It is preferable to add the potassium component to the municipal waste and mix it, and then put the mixture into a heat treatment device to perform heat treatment.However, if the heat treatment device has sufficient stirring means for uniform mixing, Add potassium component to heat treatment equipment and heat Prior to this, heating may be started after the organic waste and the potassium component are sufficiently stirred and mixed in the apparatus.
- the mixture of the organic waste and the vitreous component is heated under stirring as described above, dried first, and then heat-treated to obtain an aged compost-like product.
- nitrogen, phosphorus, and potassium fertilizer components are contained in a well-balanced manner by capturing the potassium component that is insufficient in an aged compost-like product made from ordinary organic waste, and the fertilizer component balance alone
- An aged compost-like product which can be used as an organic fertilizer excellent in quality can be obtained.
- the organic waste when the organic waste is heated and dried and then heat-treated to produce an aged compost-like product, a polymer and a potassium component are added to the organic waste in combination, whereby the organic waste is granular and has excellent handleability. It is possible to obtain an aged compost-like product having a high commercial value and an excellent balance of fertilizer components.
- FIG. 4 shows an example of an apparatus for producing an aged compost-like material suitable for carrying out the third and fourth aspects.
- the method of the present invention as shown in FIG.
- the subsequent heat treatment is not limited to being performed in the same heating vessel, but may be performed in an apparatus that performs heating and drying and heat treatment in separate containers.
- the third and fourth aspect methods can also be implemented in the aged compost-like manufacturing equipment shown in Figs.
- Organic wastes to be treated by the third and fourth aspect methods include sewage treatment sludge, surplus sludge, digested sludge, septic tank sludge, and other biological treatments generated in the biological treatment of wastewater and waste. Examples include sludge obtained by dewatering sludge, food waste, livestock dung, etc. According to the 3rd and 4th Aspects, such organic wastes should be heat-dried and then heat-treated. As a result, it is possible to obtain an aged compost-like material having a high commercial value, which has almost no odor, has a sufficient amount of organic fertilizer components remaining, and has a relatively low salt content, and can be effectively used as an organic fertilizer.
- aqueous solution of polyacrylamide is a synthetic polymer poultry manure, 0 for poultry in dry weight ratio.
- Heat treatment was performed with stirring.
- the medium oil heated to 200 ° C. was circulated.
- the object to be treated in the container was completely dried by the heat treatment for 8 hours, and the temperature rose to 100 ° C. Further, after that, heat treatment was performed at 100 to 200 ° C. for 3 hours to obtain granular aged compost.
- Aged compost-like product was produced in the same manner as in Example 3-1 except that the polymer was not added, and the average particle size of the obtained aged compost-like product and contained in the aged compost-like product The proportion of fine powder having a particle size of 1 mm or less was examined, and the results are shown in Table 1.
- Table 1 shows that the addition of the polymer makes it possible to produce an aged combo-like product that is granular and has excellent handleability.
- the method for producing an aged compost-like product of the third aspect in a method of producing an aged compost-like product by heating and drying an organic waste and then heat-treating the same, the granulation property is improved.
- An aged compost-like product that is granular and has no problems of scattering and dust generation and that is excellent in handleability can be produced.
- an aged compost-like product was produced using organic sludge with a water content of 82% (excess sludge discharged from the activated sludge treatment process) as a raw material.
- a mixture obtained by adding 4 kg of sulfuric acid lime powder to 160 kg of organic sludge and putting the mixture into a heating vessel was heated with stirring.
- the medium oil heated to 200 ° C was circulated.
- the object to be treated in the container was completely dried by the heat treatment for 13 hours, and the concentration was reduced.
- the temperature rose to 100 ° C.
- heat treatment was performed at 100 to 200 ° C. for 4 hours to obtain an aged compost-like product having a particle size of about 1 to 5 mm.
- Table 2 shows that the addition of the potassium component makes it possible to produce an aged compost-like product with a good balance of fertilizer components.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CNA2006100046439A CN1817821A (zh) | 2002-09-02 | 2003-08-29 | 用于生产像成熟堆肥一样的物质的方法 |
AU2003261842A AU2003261842B2 (en) | 2002-09-02 | 2003-08-29 | Apparatus and method for producing matured compost-like substance |
CNA2006100046424A CN1817820A (zh) | 2002-09-02 | 2003-08-29 | 用于生产像成熟堆肥一样的物质的方法 |
EP03794144A EP1535888A1 (en) | 2002-09-02 | 2003-08-29 | Apparatus and method for producing matured compost-like substance |
KR20047003809A KR100651066B1 (ko) | 2002-09-02 | 2003-08-29 | 숙성 콤포스트 유사 물질의 제조 장치 |
US10/786,084 US20040172996A1 (en) | 2002-09-02 | 2004-02-26 | Apparatus and method for producing matured compost-like material |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JP2002-256787 | 2002-09-02 | ||
JP2002256787A JP2004091280A (ja) | 2002-09-02 | 2002-09-02 | コンポスト様物製造装置 |
JP2002260226A JP4000964B2 (ja) | 2002-09-05 | 2002-09-05 | コンポスト様物の製造装置 |
JP2002-260226 | 2002-09-05 | ||
JP2002-265705 | 2002-09-11 | ||
JP2002265705A JP2004099395A (ja) | 2002-09-11 | 2002-09-11 | 熟成コンポスト様物の製造方法 |
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US10/786,084 Continuation US20040172996A1 (en) | 2002-09-02 | 2004-02-26 | Apparatus and method for producing matured compost-like material |
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WO2004022510A1 true WO2004022510A1 (ja) | 2004-03-18 |
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US (1) | US20040172996A1 (ja) |
EP (1) | EP1535888A1 (ja) |
KR (1) | KR100651066B1 (ja) |
CN (3) | CN1817821A (ja) |
AU (1) | AU2003261842B2 (ja) |
WO (1) | WO2004022510A1 (ja) |
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US10919249B2 (en) | 2016-02-19 | 2021-02-16 | Albert Mardikian | Apparatus for pressing and dehydrating of waste |
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WO2009014669A2 (en) * | 2007-07-19 | 2009-01-29 | Goodman, Herbert | A method of processing and drying waste in a continuous process |
US20090145188A1 (en) * | 2007-12-07 | 2009-06-11 | Halton Recycling Limited | Apparatus and methods for generating compost |
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KR20120090919A (ko) * | 2012-07-27 | 2012-08-17 | 주식회사명성자동수문 | 모든 종류의 쓰레기와 모든 종류의 슬러지와 모든 종류의 인분과 축분과 모든 종류의 음식물 쓰레기와 모든 종류의 폐수를 이용하여 가스를 생산하는 친환경 공법 및 그 처리 과정을 이용하여 가스를 생산하는 가스생산시스템 |
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MX2022007001A (es) * | 2019-12-09 | 2022-09-19 | Hellenes Holding As | Metodo para la separacion termica continua de una sustancia de multiples componentes. |
DE102020123246A1 (de) * | 2020-09-05 | 2022-03-10 | Alfred Kärcher SE & Co. KG | Kompostiervorrichtung |
CZ309796B6 (cs) * | 2020-11-05 | 2023-10-18 | Petr Ing Vaníček | Nosná konstrukce pro řízený gravitační posun neseného materiálu a zařízení s touto nosnou konstrukcí |
CN115127325A (zh) * | 2022-07-08 | 2022-09-30 | 张晓春 | 一种多层连续式污泥干燥装置 |
CN116087261B (zh) * | 2023-04-11 | 2023-07-04 | 中国石油大学(华东) | 一种泡沫耐热稳定性评价装置和方法 |
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JPH0585874A (ja) * | 1991-02-28 | 1993-04-06 | Ebara Infilco Co Ltd | 土壌改良材の製造方法 |
JPH06100390A (ja) * | 1992-09-16 | 1994-04-12 | Sosuukai:Kk | 生ごみ処理装置 |
JP2001130990A (ja) * | 1999-08-23 | 2001-05-15 | Kurita Water Ind Ltd | 熟成コンポスト様物の製造方法及び製造装置 |
JP2002012489A (ja) * | 2000-06-28 | 2002-01-15 | Tochigi Prefecture | 調整剤混合有機質資材とその製造方法 |
JP2002028608A (ja) * | 2000-07-14 | 2002-01-29 | Kurita Water Ind Ltd | コンポスト様物の製造方法及びコンポスト様物の製造装置 |
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JP2005270731A (ja) * | 2004-03-23 | 2005-10-06 | Kurita Water Ind Ltd | 汚泥加熱処理時の臭気除去方法 |
CN105157397A (zh) * | 2013-01-04 | 2015-12-16 | 吴杰 | 一种用于三废综合回收处理的连续干燥系统 |
CN105157397B (zh) * | 2013-01-04 | 2017-09-29 | 浙江红绿蓝纺织印染有限公司 | 一种浆料或粉料的连续干燥系统的工作方法 |
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US11718057B2 (en) | 2016-02-19 | 2023-08-08 | Regreen Technologies, Inc. | Apparatus for pressing and dehydrating of waste |
Also Published As
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CN1817820A (zh) | 2006-08-16 |
KR20050032498A (ko) | 2005-04-07 |
CN1585731A (zh) | 2005-02-23 |
EP1535888A1 (en) | 2005-06-01 |
AU2003261842A1 (en) | 2004-03-29 |
US20040172996A1 (en) | 2004-09-09 |
AU2003261842B2 (en) | 2007-11-22 |
KR100651066B1 (ko) | 2006-12-01 |
CN1817821A (zh) | 2006-08-16 |
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