JP2002167209A - Activated carbon manufacturing apparatus, its manufacturing method, and activated carbon manufacturing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evenly carbonize waste with various shapes, viscosity and water content through an indirect heating method. SOLUTION: A dryer, to dry waste, is equipped with a cutter and a screw conveyer inside and a jacket for heating outside. After being dried at the dryer, waste is dry distilled in a dry distillation furnace and is turned out to be an activated carbon in an activated carbon activating furnace. By installing the apparatus having such a constitution at a sewage treatment facility, a digested sludge is carbonized, and a carbonized activated carbon is used at a tertiary treatment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste treatment apparatus, and more particularly to an apparatus for producing activated carbon from waste, a method for producing the same, and a production system using the activated carbon production apparatus.

[0002]

2. Description of the Related Art Various types of waste treatment include simple incineration and disposal by a contractor, and reduction of waste or recycling under the theme of zero emission in order to enhance corporate image and fulfill responsibility in local communities. And environmental conservation products for volume reduction are increasing. As one of the methods, treatment by an organic waste treatment apparatus as shown in FIG. 4 has been proposed.

In FIG. 4, materials to be treated, which are various kinds of wastes, are put into a hopper 1, cut into a certain size, and accumulated.
The material to be treated is continuously injected from the hopper 1 into a screw agitating or rotating drying unit (drying furnace) 2, dried in the drying furnace 2 while reducing the water content, and gradually carbonized. At this time, in order to heat the drying furnace 2, the outside of the casing of the drying furnace 2 is heated using the residual heat of the hot air remaining after heating the dry distillation furnace 3 installed at a later stage at a high temperature,
Indirect heating is performed on the waste in the casing in an oxygen-free state. Therefore, the relatively low-temperature carbonized gas containing the generated water vapor and odorous gas can be forcibly collected through the damper 4 of the drying furnace 2 without mixing with the hot air, and the combustion of the burner 5 that directly burns the collected gas. By injecting it into the mouth 6, the odor is decomposed and burned as some spare fuel to assist high-temperature heating.

[0004] The material to be treated after being heated in the drying furnace 2 is supplied to the rotating carbonization furnace 3 with screw stirring or rotating, and carbonized to extract carbonized gas and to be carbonized. The gas containing the stench is forcibly collected through the carbonization damper 7 without being mixed with the hot air, and the gas is directly injected into the combustion port 6 of the burner 5 which burns and decomposes the bad smell. Combustion using carbonization gas as a reserve fuel, assists high-temperature heating and contributes to low fuel consumption. The combustion section 8 controls the burner 5 to control the temperature of the combustion port 6 to around 1100 ° C. to generate hot air. The carbonized material that has been carbonized by the carbonization furnace 3 is moved while being cooled by the cooling conveyor, is stored in the carbide hopper, and is used as valuable resources such as fuel and fertilizer. The ejector-type fan 9 is a displacement control device for controlling the thermal efficiency of the displacement of the hot air to be optimal.

[0005] Sewage sludge (raw sludge, digested sludge) generated in sewage treatment facilities is required for waste treatment. Sewage treatment facilities consist of a sewage treatment and sludge treatment system, and most of the existing sewage treatment facilities are treatment systems using activated sludge. As shown in FIG. 5, this system flows through a sewage pipe. Municipal sewage is initially organic matter that physically precipitates in the sedimentation basin 40,
The inorganic dirt is precipitated and subjected to a primary treatment, and then sent to the aeration tank 41. In the aeration tank 41, aerobic microorganisms called activated sludge in the tank take in dissolved oxygen dissolved in water by aeration, and mainly float in sewage or decompose dissolved organic matter by biochemical reaction. , To remove pollutants contained in sewage.
The mixed water of the clean sewage and the activated sludge is settled in the final settling basin 42 so that the supernatant liquid becomes clean water and is discharged as secondary treated water. On the other hand, the settled activated sludge is sent to a sludge treatment system.

[0006] Recent sewage treatment water systems not only discharge this secondary effluent to rivers, but also make them into cleaner water again through tertiary treatment systems and discharge them to rivers.
The tertiary treatment system includes filter filtration and activated carbon reaction tank 4.
Activated carbon filtration 3 removes not only the BOD concentration (pollution concentration index) in the secondary treatment water but also the nitrogen and phosphorus concentrations to reduce the eutrophication of the effluent. Excess sludge generated from the first settling basin 40 and the final settling basin 42 is called raw sludge, and after being concentrated in the raw sludge concentration tank, is sent to the digestion tank 45 which is performing anaerobic fermentation. In the digestion tank 45, the raw sludge is digested and fermented using anaerobic bacteria, methane bacteria, for 15 to 20 days, and the volume of the sludge is converted into methane gas 46 and digested sludge to achieve a large volume reduction. In the digested sludge thickening tank 47, the coagulant is mixed and concentrated to a large extent, and the digested sludge is dehydrated. The digested sludge into which the coagulant has been introduced is supplied to a dehydrator 48.
(Filter dehydrator or vacuum dehydrator) with 95% water content
It turns into cake-like sludge dehydrated from around 80%. The dewatered cake-like sludge is incinerated in an incinerator 49 using methane gas 46 generated by digestion and fermentation as an auxiliary fuel, and most of the largely reduced volume becomes inorganic ash. The ash contains a certain amount of moisture and is discarded as landfill waste.

[0007]

The above-mentioned treatment method using a waste treatment apparatus has the advantage of being the most efficient and low-cost treatment as a continuous carbonization apparatus using an indirect heating method, but has the following advantages. It has problems of constitution and drying and carbonization.

First, structurally, the size of the supplied waste varies depending on the type, and the treatment of the waste is not uniform regardless of whether it is stored in a hopper or put in a drying section. The working mode differs depending on the size of the object. In addition, depending on the waste, the water content varies greatly. If the water content is high, it is difficult to handle because it is liquid and fluid even when stored in a hopper or treated in a drying section. Also, even if the surface is solidified, the inside has fluidity, so that the treatment is difficult. Furthermore, the high water content of the waste means that the amount of waste input treatment is large, and as a result,
The processing per unit time in the drying unit becomes large, and the drying unit itself becomes structurally large.

When the input waste is dried in the drying section, unless the drying temperature is controlled to about 120 to 150 ° C., a larger amount of carbonized gas is generated than that of carbonized at relatively low temperature, and only steam is removed. It is becoming difficult to recover.
In the drying section, dry distillation also proceeds at the same time as drying. At that time, the shape and viscosity temperature conditions of the waste often do not match, so that the entire waste is often not uniformly dried and carbonized. . In FIG. 4 as well, the residual heat of the hot air from the dry distillation furnace is used for the drying section. However, depending on the properties of the waste and the water content at the time of entering the drying section, the temperature conditions of the drying section greatly change and uniform And the generation of uniform carbonization gas is hindered.

[0010] In the carbonization furnace, since the temperature in the carbonization furnace naturally fluctuates due to large fluctuations in the state of the drying section and carbonization proceeds, the generation of carbonization gas and carbonized matter also varies. come. In particular, single plant wastes such as tea husks and coffee grounds produce high-quality carbonized materials when carbonized under uniform temperature conditions, but conventional carbonization furnaces have variations due to temperature fluctuations. High quality dry distillate is not produced.

In a sewage treatment plant as shown in FIG. 5, a problem with the sludge system is that a large amount of ash is discharged in the incinerator 49, which is the final step of the system, and the volume of the ash is greatly reduced. However, it has no value and has been dumped in landfills. In addition, since this large amount of ash has been completely burned, its moisture content is close to zero, and since it is in the form of fine powder, it is easy to be scattered in the atmosphere. And a scattering prevention step for achieving a water content of For this reason, it goes against the reduction of the volume. In the incinerator 49 for dewatered sludge, cake-shaped dewatered sludge having a water content of about 80% is merely incinerated with kerosene, heavy oil, natural gas, or the like, and the methane gas 46 generated in the nitrification tank 45 is used. Nevertheless, the large water content requires a large amount of fuel, which increases the fuel energy, and burns all the sludge, which increases the emission of harmful gas and carbon dioxide. Furthermore, in the dehydrator 48 using a filter press dehydrator or a vacuum dehydrator,
The water content is dehydrated from about 95% to about 80%. However, cake sludge having a large water content makes maintenance such as clogging of a filter of a dehydrator difficult. In the digestion sludge concentration tank 47, a large amount of a coagulant is mixed and concentrated in order to make the nitrification sludge with good dehydration property. However, the dehydration property is high because the water content is about 95% to about 80%. The mixing of molecular or inorganic coagulants makes it impossible to recycle the final waste.

[0012] As a problem on the sewage treatment system side, recent sewage treatment systems have a large pollution load (BOD) of municipal sewage, and thus not only discharge secondary treated water into rivers but also tend to pass through tertiary treatment systems again. It has become. In the tertiary treatment, in order to make clean water and discharge it to the river, filter filtration and activated carbon filtration in the activated carbon reaction tank 43 are performed, but filters and activated carbon are expensive materials even if they can be reused several times, They are considered consumables, and these filters and activated carbon are simply waste if they are used up.

An object of the present invention is to provide a method and an apparatus for producing activated carbon, and a production system using the apparatus.

[0014]

A first object of the present invention is to put a material to be treated, which is waste, into a drying section and heat and dry the same. In an apparatus for sending to a furnace and carbonizing and decomposing, an activated carbon activation furnace is disposed between the carbonization furnace and the combustion section, and the material to be treated carbonized by the drying section is introduced into the activated carbon activation furnace to form activated carbon. Activated carbon production equipment characterized in that:

A second aspect of the present invention is to provide an activated carbon activation furnace in which the material to be treated carbonized by the carbonization furnace is introduced to be activated carbon, and the drying section heats and dry the material to be treated on an outer peripheral portion thereof. A screw conveyer is provided inside, and a screw conveyor driven by a motor and a cutter driven by the motor to crush the material to be processed are provided.

A third aspect of the present invention is to dispose a steam heating pipe for heating by the heat of the carbonization furnace near the carbonization furnace.
The steam generated in the drying section is heated by the steam heating tube, and the heated steam is supplied to the activated carbon activation furnace.

A fourth aspect of the present invention is that the drying section is provided with a waste liquid storage tank for storing at least waste having a high water content or a waste supply hopper for cutting solid waste. A fifth aspect of the present invention is that a damper for collecting gas generated in the activated carbon activation furnace is provided, and the collected gas is supplied to the combustion unit.

In the sixth aspect of the present invention, the material to be treated, which is waste, is put into a drying section and dried by heating, and the heated and dried material is sent to a carbonization furnace heated by a combustion section to be carbonized. In the decomposing apparatus, an activated carbon activation furnace is provided between the combustion section and the carbonization furnace, and the material to be treated carbonized in the carbonization furnace is introduced into the activated carbon activation furnace and activated carbonized.

In a seventh aspect of the present invention, the heating temperature of the processing section in the heating section is set to 120 to 150 ° C., and when the water content of the material to be processed becomes 10% or less, the temperature is raised to 850 to 950 ° C. It is supplied to a dry distillation furnace.

In the eighth aspect of the present invention, the material to be treated, which is waste, is put into a drying section and dried by heating, and the heated and dried material is sent to a carbonization furnace heated by a combustion section to be carbonized. , An activated carbon production furnace is provided by introducing an activated carbon into which the material to be treated carbonized by the carbonization furnace is introduced to be activated carbon, and this activated carbon production apparatus is installed in a sewage treatment facility. And the digester sludge in a sewage treatment facility is supplied to a drying section of the activated carbon production apparatus.

According to a ninth aspect of the present invention, the activated carbon producing apparatus is
An activated carbon production apparatus or an activated carbon production method according to any one of the first to seventh inventions is applied to a sewage treatment plant.

A tenth aspect of the present invention is that the digester sludge is dewatered by a dehydrator and then supplied to the drying section.

According to an eleventh aspect of the present invention, the methane gas generated in the digestion tank is supplied to the combustion section. .

In a twelfth aspect of the present invention, the activated carbon produced by the activated carbon production apparatus is supplied to a tertiary treatment reactor in a sewage treatment plant.

According to a thirteenth aspect of the present invention, the activated carbon used in the tertiary treatment reaction tank is used as a valuable resource.

[0026]

FIG. 1 shows an embodiment of the present invention. Prior to the description of the present invention, a heating unit (heating and drying apparatus) used in the present invention will be described with reference to FIG.
In FIG. 3, reference numeral 10 denotes a heating and drying machine, which has a jacket 11 on the outer peripheral surface of a cylindrical casing. Numeral 12 is a tube for supplying steam to the jacket 11, which heats the jacket portion 11 to heat and dry the waste which has adhered to the inner wall at 120 to 150 ° C.
In addition, a pressure reducing valve and a safety valve are provided in the pipeline of the pipe 12. Reference numeral 13 denotes a waste liquid storage tank. Liquid waste having a high water content is stored in the waste liquid storage tank 13, and an appropriate amount is continuously supplied to the dryer 10 via a pump 14. Reference numeral 15 denotes a solid waste supply hopper.
5 is cut into an appropriate size. The cut solid waste is transferred to the inlet 17 by the supply device 16 driven by the motor, and is injected into the drying unit 10. Reference numeral 18 denotes a cutter, which is rotatably mounted on the bottom side of the drying unit and is configured to be rotated by a motor. Reference numeral 20 denotes an outlet, 21 denotes a fan, and steam and odorous gas generated in the drying unit 10
1 is used to blow air to the white smoke / odor control device 22, heat and burn, decompose and release to the atmosphere. In the present invention, a drying section as shown in FIG. 3 is basically used.

[0027]

[Embodiment 1] FIG. 1 shows a configuration diagram of an activated carbon manufacturing apparatus according to the present invention. The same or corresponding parts as those in FIGS. The drying unit 30 has a cutter 18 and a screw conveyor 19 therein, and has a motor M for rotating these 18 and 19 mounted on an upper side. Further, as a heat source for heating the drying unit 30, a dry distillation furnace 3 is used.
The residual heat of the hot air generated in the above is configured to flow through the jacket portion 11 via the damper 35. It is needless to say that surplus steam from a factory or the like may be supplied to the jacket portion 11 from the outside via steam as shown in FIG. Reference numeral 31 denotes an activated carbon activation furnace, which is provided between the carbonization furnace 3 and the combustion unit 8 to supply hot air from the combustion unit 8 and to supply the hot air from the activated carbon activation furnace 31 to the carbonization furnace 3. Have been. 32 is a steam heating tube,
The heating tube 32 is arranged near the carbonization furnace 3, and the steam is heated by the residual heat of the carbonization furnace 3. Steam heating tube 32
The opening at one end is disposed in the drying section 30, and the other end is disposed in the activated carbon activation furnace 31, and a large number of holes for discharging steam are drilled. A damper 33 supplies gas generated in the activated carbon activation furnace 31 to the combustion port 6 of the combustion section.

A method for producing activated carbon using the activated carbon production apparatus configured as described above will be described. Materials to be treated include, for example, a single organic vegetable waste, a single vegetable (sprouts, lettuce, potato skin, etc.), a single fruit (apple residue, pineapple residue, banana peel, etc.), a single tea residue (Green tea scum, oolong tea scum, coffee scum, etc.) and shochu waste liquid (potato shochu waste liquid, barley shochu waste liquid, buckwheat shochu waste liquid, etc.)｝ are homogeneous carbon because of their uniform composition. Animal waste (poultry manure, cow manure, pig manure, horse manure, fish cake, waste cardboard, paper sludge, waste paper such as paper waste) other than these plant organic wastes, activated sludge, sewage sludge, digested sludge Various sludges become activated carbon. These are firstly the waste liquid storage tank 1
3 or stored in the solid waste supply hopper 15. Materials to be treated such as shochu waste liquid stored in the waste liquid storage tank 13 are as follows:
It is supplied to the drying unit 30 via the supply pump 14. The material to be treated stored in the solid waste supply hopper 15 is cut into a predetermined size in the hopper, and then fed into the drying unit 30 via the solid material supply device 16. Drying section 3
0 is 120 to 120 ° C due to residual hot air from the dry distillation furnace 3.
The temperature is controlled to be about 150 ° C., and the charged material is dried until the water content becomes 10% or less. Meanwhile, inside the drying unit 30, the screw conveyor 19 is rotated so that the material to be treated is always adhered to the inner wall, and if the adhered material has a certain thickness, the screw conveyor 19 is rotated. Due to the rotation of 18, the input material to be processed is pulverized into powder.
The heating of the drying unit 30 is performed by the residual heat of the hot air from the dry distillation furnace 3.
Depending on the case, steam may be supplied as shown in FIG. 3 in addition to the hot air of the carbonization furnace, and the steam may be controlled by controlling the valve.

The material to be treated, which has become a uniform organic powder after the water content has been removed to 10% or less,
Drawn out via a pulling device 34 driven by
It is sent to the carbonization furnace 3. In the drying unit 30,
When the material to be treated is dried by hot air residual heat from the carbonization furnace 3, the steam generated inside the material is collected at one end of the steam heating tube 32 and sent to the heating section of the heating tube 32 provided in the carbonization furnace 3; The residual heat of the carbonization furnace 3 causes the steam heating tube 3
2 is further heated. By this heating, the steam collected in the drying unit 30 is further increased in activity as high-temperature steam, and is released into the activated carbon activation furnace 31. The temperature near the combustion port 6 of the combustion section is about 1100 ° C., and the dry distillation furnace 3 supplied through the activated carbon activation furnace 31 by this hot air is controlled at a temperature of 850 to 950 ° C. Therefore, by directly and continuously injecting the material to be treated into such a carbonization furnace, it is possible to generate a high-quality carbonization gas and a carbonization product in the carbonization furnace, The dry distillation gas is extracted through the damper 7, and this gas is supplied as high-energy fuel to the combustion port 6 to reduce the fuel consumption of the burner 5 and contribute to energy saving. In addition, since the carbonization furnace 3 is controlled at a temperature of 850 to 950 ° C., the powder of the organic waste can be uniformly carbonized, so that the processing can be performed without generating harmful substances such as dioxin. Can do and
The gas generated in the activated carbon activation furnace 31 is also extracted by the damper 33 and supplied to the combustion port 6, where it can be heated and heated at a high temperature to completely decompose and burn.
Hazardous gas generation can be prevented.

In the above description, the case where 30 is used as the drying unit has been described. However, if energy efficiency is somewhat sacrificed, even if a conventional drying furnace as shown in FIG. Is obtained.

[0031]

[Embodiment 2] Fig. 2 shows a case where the activated carbon production apparatus as shown in Fig. 1 is applied to a sewage treatment facility comprising a sewage treatment system and a sludge treatment system. The same reference numerals are given to the same parts and the description thereof is omitted. In the figure, reference numeral 50 denotes an activated carbon production apparatus, and 51 denotes a dehydrator, which may be a conventional dehydrator 48. Here, an ultra-high-pressure vacuum dehydrator is used. The digested sludge from the digestion tank 45 is directly introduced without mixing a flocculant as in the conventional case. When an ultra-high pressure dehydrator is used as the dehydrator, the pressure to pressurize is greater than that of the conventional dehydrator, and at the same time, the filter for the dehydrator is suctioned to a vacuum, so that the dehydration rate is very good, and the conventional dehydration rate is 80%. It is reduced to about 50% or less from before and after, and is improved by about 2 times. By greatly reducing the water content, the sludge cake can be more easily peeled off and clogging of the filter can be reduced.

The cake-like sludge having a low water content is continuously sent to the carbonization furnace 3 and the activated carbon activation furnace 31 via the solid waste supply hopper 15 and the drying section 30 shown in FIG. It is dried, carbonized and steamed in an oxygen state. The organic gas generated during this process is sent to the combustion port 6 together with the methane gas 46 generated in the nitrification tank 45 and used as a fuel auxiliary agent, thereby reducing fuel cost. Activated carbon continuously generated in the activated carbon activation furnace 31 is reused waste, so it is supplied to the activated carbon reaction layer tank 43 of the tertiary treatment as needed without considering cost, and the required amount is always used. it can. Activated carbon that has been tertiary-treated has become the most suitable soil improvement material because it adsorbs nitrogen, phosphorus, and sludge organic matter in the secondary treatment water.
The activated carbon to which the organic substance has been adsorbed is further used as a valuable resource.

[0033]

As described above, according to the present invention, the structure of the conventional carbonization apparatus can be reduced in size by the effect of the apparatus for evaporating only water vapor, and the apparatus is generated from the apparatus. Since the odor is burned in the combustion section or heated at a high temperature by the steam heating tube, all the odor is decomposed, so that it is not necessary to provide a odor prevention device. In addition, since the drying section for generating steam has a built-in cutter, the waste can be pulverized, so that it can be dried sufficiently and can be produced in a uniform state. In addition, the carbonization furnace is not required, and all carbonization functions are performed in the activated carbon activation furnace, so that a large amount of high-quality carbonized gas can be extracted, the burner fuel can be saved, and the energy saving regy can be promoted. In addition, since the carbonization furnace can perform carbonization while maintaining a stable temperature of 850 to 950 ° C., it does not generate harmful substances such as dioxin, and municipal waste, agricultural and livestock waste, offices and factories, etc. It can carbonize waste documents, waste packaging materials, landscaping waste, etc. Furthermore, when a single vegetable organic waste is subjected to carbonization with the present apparatus, the resulting carbonized matter is continuously charged into an activated carbon activation furnace, and
By supplying the steam generated from the drying section as high-temperature steam to the activated carbon activation furnace with a steam heating tube, high-quality activated carbon can be continuously produced.

On the other hand, by applying this apparatus to a sewage treatment facility, it is possible to recycle a large amount of discharged sludge and to convert it into valuable resources while omitting the steps of a sludge treatment system (coagulant charging and digestion sludge concentration steps). This has the advantage of enabling the conversion of

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an activated carbon production apparatus showing an embodiment of the present invention.

FIG. 2 is a configuration diagram of a sewage treatment plant showing another embodiment of the present invention.

FIG. 3 is a configuration diagram of a conventional pulverization type heating and drying apparatus.

FIG. 4 is a configuration diagram of a conventional organic waste treatment apparatus.

FIG. 5 is a configuration diagram of a conventional sewage treatment facility.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 ... Dry distillation furnace 5 ... Burner 6 ... Combustion port 7 ... Damper 8 ... Combustion part 9 ... Ejector type fan 11 ... Jacket 13 ... Waste liquid storage tank 15 ... Solid waste supply hopper 18 ... Cutter 19 ... Screw conveyor 30 ... Drying part 31 ... activated carbon activation furnace 32 ... steam heating tubes 33, 35 ... dampers 50 ... activated carbon production equipment 51 ... ultra-high pressure vacuum dehydrator

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) C10B 53/00 B09B 3/00 303H (72) Inventor Naoyuki Sato 1-20-18 Ebisu, Ebisu, Shibuya-ku, Tokyo Mitsutomi Building Shinkan Meiden Shoji Co., Ltd. (72) Inventor Isamu Isawa 5-5-5 Osaki, Shinagawa-ku, Tokyo Meiden Plant Co., Ltd. (72) Inventor Hayashi Tsuguo 1, Ebisu, Shibuya-ku, Tokyo No. 20-18 Mitomi Building New Building Meiden Trading Co., Ltd. (72) Inventor Harumi Nakayama 700 Miyakazo Shimizu-shi, Shizuoka Tokai Techno Co., Ltd.F-term (reference) DA06 DA09 4D059 AA03 BB05 BB11 BB18 BC03 BK11 CA07 CB06 CC10 EA01 EA06 EA10 EB01 EB06 EB10 4G046 HA09 HC09 HC15 HC18 HC26 4H012 HA03

Claims (13)

[Claims] 1. An apparatus in which waste material to be treated is put into a drying section, heated and dried, and the heated and dried workpiece is sent to a carbonization furnace heated by a combustion section to perform carbonization and decomposition. An activated carbon activation furnace, wherein an activated carbon activation furnace is disposed between the carbonization furnace and the combustion section, and the material to be treated carbonized by the drying section is introduced into the activated carbon activation furnace to form activated carbon. 2. An activated carbon activation furnace for introducing a material to be treated carbonized by the carbonization furnace and converting the material into activated carbon is provided, and the drying section includes a jacket portion for heating and drying the material to be treated on an outer peripheral portion thereof. 2. The activated carbon manufacturing apparatus according to claim 1, further comprising a screw conveyor provided therein and driven by a motor, and a cutter driven by the motor to pulverize the material to be processed. 3. A steam heating tube for heating by the heat of the carbonization furnace is provided near the carbonization furnace, and the steam generated in the drying section is heated by the steam heating tube, and the heated steam is The activated carbon production apparatus according to claim 1, wherein the apparatus is configured to supply the activated carbon to the activated carbon activation furnace. 4. The apparatus according to claim 1, wherein the drying unit includes a waste liquid storage tank for storing at least waste having a high water content, or a waste supply hopper for cutting solid waste. Activated carbon production equipment. 5. The activated carbon production according to claim 1, wherein a damper for collecting gas generated in the activated carbon activation furnace is provided to supply the collected gas to the combustion unit. apparatus. 6. An apparatus in which waste material, which is waste, is charged into a drying section and heated and dried, and the heated and dried workpiece is sent to a carbonization furnace heated by a combustion section to perform carbonization and decomposition. , An activated carbon activation furnace is disposed between the combustion unit and the carbonization furnace,
A method for producing activated carbon, characterized in that the material to be treated carbonized in the carbonization furnace is introduced into an activated carbon activation furnace and activated carbonized. 7. The heating temperature of the processing section in the heating section is set to 120 to 150 ° C., and the water content of the processing target material is 10%.
7. The activated carbon production method according to claim 6, wherein when the temperature becomes below, the raw material is supplied to a dry distillation furnace heated to 850 to 950C. 8. A structure in which a material to be treated as waste is put into a drying section and heated and dried, and the material to be heated and dried is sent to a carbonization furnace heated by the combustion section to be carbonized and decomposed. In addition, an activated carbon production furnace is provided by providing an activated carbon activation furnace that introduces the material to be treated carbonized by the carbonization furnace and converts the activated carbon into activated carbon.The activated carbon production apparatus is installed in a sewage treatment facility, An activated carbon production system in a sewage treatment plant, wherein digester sludge is supplied to a drying section of the activated carbon production device. 9. The activated carbon production apparatus according to claim 1, wherein
An activated carbon production system characterized in that the activated carbon production apparatus or the activated carbon production method described in any one of the above is used in a sewage treatment plant. 10. The activated carbon production system in a sewage treatment plant according to claim 8, wherein the digester sludge is supplied to the drying section after being dehydrated by a dehydrator. 11. The methane gas generated in the digestion tank,
The activated carbon production system in a sewage treatment plant according to claim 8, wherein the activated carbon is supplied to the combustion section. 12. The activated carbon production system in a sewage treatment plant according to claim 8, wherein the activated carbon produced by the activated carbon production device is supplied to a reaction tank for tertiary treatment in the sewage treatment plant. 13. The activated carbon used in the tertiary treatment reaction tank as a valuable resource.
2. The activated carbon production system in the sewage treatment plant according to 2.