Sterilization system of infectious discharge

Abstract

To provide: a sterilization system of an infectious discharge that is easy to spread; a combustion improver; a manufacturing equipment of a combustion improver; a manufacturing method of a combustion improver; and a sterilization system of an infectious discharge.SOLUTION: A discharge processing control method 360 includes a container selling history step 360A, a delivery history step 360B, a sterilization processing history step 360C, a notification step 360D, an ingot recovery history step 360E, a combustion improver manufacturing history step 360F, a carbon dioxide reduction amount calculation step 360G, a carbon dioxide reduction amount association step 360H, a contribution degree calculation step 360J, a contribution degree association step 360K, a combustion improver delivery history step 360L, and a combustion improver use history step 360M.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to a system for sterilizing infectious waste. [Background technology]

[0002] The basic principle for infectious waste discharged from medical institutions (for example, disposable diapers, gauze, used syringes, intravenous drip equipment, etc.) is to reduce the risk of infection by sterilizing or otherwise treating the waste within the facility where it was generated. Traditionally, medical institutions have had incinerators within their own facilities and have treated waste within their facilities in order to prevent the spread of sterilization. However, in the wake of the dioxin issue, medical institutions have now moved from in-house treatment to outsourcing incineration disposal.

[0003] The applicant has proposed a sterilization system for infectious waste (for example, Patent Document 1) that sterilizes plastic infectious waste such as used syringes and infusion equipment, making it easy to reuse as a safe resource. Patent Document 1 describes a system that heats used syringes and infusion equipment to sterilize and melt them, and then cools the melted material to obtain ingots that are then subjected to an oilification process. This allows fuel to be recovered from infectious waste. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-032338 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the system of Patent Document 1 requires an oil-reducing device, and its installation requires the consent of residents and the government, making installation a high hurdle and hindering the widespread use of the system.

[0006] The present invention seeks to provide a system for sterilizing prevalent infectious waste. [Means for solving the problem]

[0007] The method for producing a combustion improver of the present invention is characterized by comprising a melting step of melting plastic using vegetable oil, a solidification step of solidifying a molten material containing the vegetable oil and the plastic, and a dividing step of dividing the solidified molten material.

[0008] The combustion improver manufacturing facility of the present invention is characterized by comprising a melting device that melts plastic using vegetable oil, and a dividing device that divides the solidified molten material.

[0009] The combustion improver of the present invention is characterized by containing plastic and vegetable oil, the vegetable oil being 10% by mass or more and 50% by mass or less, and the plastic being 50% by mass or more and 90% by mass or less.

[0010] The infectious waste sterilization system of the present invention is characterized by comprising a memory means for storing specified information, an input / output unit for inputting and outputting specified signals, a combustion improver production history means for recording in the memory means a combustion improver production history indicating that the combustion improver has been manufactured by a combustion improver manufacturer, a carbon dioxide reduction amount association means for associating the amount of carbon dioxide reduction due to the combustion improver production with the combustion improver production history, and a control means for controlling each device.

[0011] The sterilization system for infectious waste of the present invention is characterized by comprising a memory means for storing specified information, an input / output unit for inputting and outputting specified signals, a sterilization history means for recording in the memory means a sterilization history indicating that sterilization of infectious waste using sterilization containers is carried out by a medical institution, a combustion improver manufacturing system for manufacturing a combustion improver from ingots obtained by sterilization of the infectious waste, a carbon dioxide reduction amount relating means for relating the amount of carbon dioxide reduction due to the combustion improver manufacturing to the sterilization history, and a control means for controlling each device.

[0012] The sterilization system for infectious waste of the present invention is characterized by comprising a memory means for storing specified information, an input / output unit for inputting and outputting specified signals, a delivery history means for recording in the memory means a delivery history indicating that a sterilized container is being handed over from a combustion improver manufacturer to a medical institution, a sterilization history means for recording in the memory means a sterilization history indicating that sterilization of infectious waste using the sterilized container is being carried out by the medical institution, a notification means for notifying the combustion improver manufacturer of the sterilization history associated with the delivery history, and a control means for controlling each device. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide a sterilization system for infectious waste that is easily spread, and further to provide a combustion improver, a manufacturing facility for the combustion improver, and a manufacturing method for the combustion improver. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is an explanatory diagram showing an outline of a combustion improver manufacturing apparatus. [Figure 2A] FIG. 1 is an explanatory diagram showing an overview of a melting device. [Figure 2B] FIG. 1 is an explanatory diagram showing an overview of a melting device. [Figure 3] FIG. 2 is a partial cross-sectional view showing an outline of the container. [Figure 4] FIG. 2 is a side view showing an outline of the container. [Figure 5] FIG. 1 is an explanatory diagram showing how the volume of a molten material is reduced by an anvil. [Figure 6] FIG. 1 is a flow chart showing an outline of a combustion improver manufacturing method. [Figure 7] FIG. 1 is an explanatory diagram showing an outline of an ingot. [Figure 8] FIG. 1 is a system configuration diagram of a discharge treatment management system. [Figure 9] FIG. 2 is a hardware configuration diagram of a server. [Figure 10] FIG. 2 is an explanatory diagram showing an overview of a history DB. [Figure 11] FIG. 2 is a functional block diagram of a server. [Figure 12] 10 is a flowchart showing an outline of a discharge processing method. [Figure 13] 10 is a flowchart showing an outline of a discharge processing method. DETAILED DESCRIPTION OF THE INVENTION

[0015] As shown in Fig. 1, the combustion improver manufacturing apparatus 100 includes a melting device 4 that melts plastics such as infectious waste, a cooling zone 6 that cools the melted material to obtain ingots, and a cutting device 8 that crushes the ingots. The crushed ingots can be used as a combustion improver.

[0016] As shown in Figures 2A to 2B, the melting device 4 can be freely switched between a state in which the infectious excretions DS are outside the oil B (Figure 2(A)) and a state in which the infectious excretions DS are inside the oil B (Figure 2(B)).

[0017] The melting device 4 includes a housing 10, a melting tank 21 placed on the bottom surface 10B of the housing 10 and containing oil B, a heater 23 for heating the oil B contained in the melting tank 21, a temperature sensor 25 for detecting the temperature of the oil B in the melting tank 21, a guide shaft 31 extending vertically so as to stand from the bottom surface 10B, a first slider 41 mounted so as to be movable vertically along the guide shaft 31, a first arm 43 extending from the first slider 41, and a mounting table 4 provided at the tip of the first arm 43 for placing a container A thereon. 5, a second slider 51 positioned above the first slider 41 and mounted so as to be freely movable up and down along the guide shaft 31, a second arm 53 extending from the second slider 51, an anvil 55 provided at the tip of the second arm 53, a sprocket 61 rotatably suspended from the top surface of the housing 10, a shaft 62 to which the sprocket 61 is fitted, a motor 63 that drives the shaft 62, a chain 65 that is stretched around the sprocket 61, and a controller 90 that controls each part.

[0018] The infectious wastes DS are plastic infectious wastes, such as used syringes and infusion equipment, or blood serum syringes and transfusion-used polyethylene bags and tubes. Plastics include thermoplastic resins such as polyethylene, polypropylene, and polystyrene, as well as other thermosetting resins.

[0019] Next, as shown in Figures 3 and 4, container A is made from plastic (such as polypropylene with a purity of 90% or more) and has a roughly conical or pyramidal bucket shape that becomes smaller from top to bottom. A plurality of grooves AM extending circumferentially are formed on the side of container A. The grooves AM are spaced apart at predetermined intervals in the vertical direction. As a result, container A has thick sections A1 having the original thickness of container A and thin sections A2 formed by the grooves AM that are alternately arranged in the vertical direction. The thin sections A2 are less than half the thickness of the thick sections A1. In addition, a flange A3 is formed on the edge of the opening of container A.

[0020] The lid C has a tapered circumferential locking edge C1 that protrudes from the inner wall surface. When the lid C is placed over the container A and pressed down, the flange A3 overcomes the tapered locking edge C1 that protrudes from the inside of the lid C and fits into the container, creating a non-return structure.

[0021] 2A-2B, it is preferable that the mounting table 45 has a structure that supports the container A while allowing the oil B to easily pass through. For example, it is preferable that the mounting table 45 has a basket structure or a net structure. The container A is placed on the mounting table 45. The mounting table 45 is movable in the vertical direction by the first slider 41.

[0022] The anvil 55 is located above the mounting table 45 and can be moved up and down by the second slider 51. The weight of the anvil 55 is such that it presses against the molten container and discharged material DS in the oil B, thereby reducing their volume (FIG. 5).

[0023] 2A and 2B, the tip of the chain 65 is connected to the first arm 43. The middle portion of the chain 65 is connected to the second arm 53. The base end of the chain 65 is fixed to the housing 10 (not shown). When the chain 65 is fed out by the driving of the motor 63, the anvil 55 and the mounting table 45 move downward, and when the mounting table 45 reaches the bottom of the melting tank 21, only the anvil 55 moves downward, and the chain 65 between the anvil 55 and the mounting table 45 becomes slack. On the other hand, when the chain 65 is wound up by the driving of the motor 63, first, when the chain 65 between the anvil 55 and the mounting table 45 is slack, only the anvil 55 moves upward, and when the chain 65 between the anvil 55 and the mounting table 45 is taut, both the anvil 55 and the mounting table 45 move upward. In this way, the container A containing the infectious exudates DS can be switched between being outside the oil B and being inside the oil B.

[0024] Oil B is an oil whose flash point and fire point are higher than the melting point of the plastic, such as vegetable oil.

[0025] Based on the temperature detected by the temperature sensor 25, the heater 23 adjusts the temperature of the oil B contained in the melting tank 21 so that it is higher than the melting points of the infectious waste DS, the container A, and the lid C.

[0026] The controller 90 controls the motor 63 and the heater 23 .

[0027] Returning to Figure 1, the molten plastic removed from the melting device 4 is placed in the cooling zone 6. Because the temperature in the cooling zone 6 is about room temperature, the molten plastic solidifies. This solidified plastic is called an ingot.

[0028] The dividing device 8 performs a predetermined dividing process (such as crushing or pulverization) on the ingot. As the dividing device 8, a known device such as a single-axis crusher can be used. The divided ingots can be used as a combustion improver. The divided ingots may be of any size depending on the intended use, for example, a width of 1 mm to 5 mm and a length of about 5 mm to 30 mm.

[0029] Next, a combustion improver manufacturing method 200 in the combustion improver manufacturing apparatus 100 will be described.

[0030] As shown in Figure 6, the combustion improver manufacturing method 200 includes a melting process 210 in which infectious effluents DS are melted using oil B, a solidification process 220 in which a molten material D containing oil B and infectious effluents DS is solidified, and a cutting process 230 in which the solidified molten material (ingot E) is cut.

[0031] (preparation) As shown in Figure 3, infectious excretions DS are placed in container A. Then, container A containing infectious excretions DS is closed with lid C. The flange A3 fits over the tapered edge C1 protruding from the inside of lid C. This makes it difficult for lid C to come off container A (Figure 4).

[0032] (Melting process) 2A, in melting apparatus 4, table 45 is set above melting tank 21. Container A is placed on table 45.

[0033] When the motor 63 is driven to feed the chain 65, the anvil 55 and the mounting table 45 descend. When the mounting table 45 reaches the bottom of the melting tank 21, the anvil 55 continues to descend and reaches the mounting table 45. Since the chain 65 continues to be fed even after the anvil 55 reaches the mounting table 45, the weight of the anvil 55 is applied to the lid C. At this time, the temperature of the oil B in the melting tank 21 is below the flash point and ignition point of the oil B, but is higher than the melting points of the infectious waste DS and the container A and lid C. Therefore, the infectious waste DS, the container A, and the lid C melt. In the melting of the container A and the lid C, the bottom thin part A2 melts first, causing the second thick part A2 to descend outside the bottom thick part A1. Next, the second thin part A2 melts, causing the third thick part A2 to descend outside the second thick part A1. This process is repeated, with the fourth and fifth thick sections A2 descending outside the third thick section A2 from the bottom. Melting then continues in the thick sections A2, infectious excreta DS, and lid C. As a result, the infectious excreta DS, container A, and lid C are reduced in volume as they melt, becoming a plastic mass D (Figure 7). In this way, in melting device 4, the resin of the plastic (infectious excreta DS, container A, and lid C) is immersed in heated vegetable oil B to melt, while at the same time sterilizing the infectious excreta DS.

[0034] Thereafter, the motor 63 is driven to wind up the chain 65, which raises the anvil 55. As the chain 65 continues to be wound up, the mounting table 45 rises together with the anvil 55, and the plastic mass (molten material D) comes out of the oil B.

[0035] (solidification process) The melt D is removed from the mounting table 45 and carried to the cooling zone 6. In the cooling zone 6, the melt D is naturally cooled and solidified. Hereinafter, this solid is referred to as an ingot E.

[0036] (Cutting process) The ingot E is crushed by a crushing device 8.

[0037] The crushed material of Ingot E contains plastic and vegetable oil, so it can be used as a combustion improver. The combustion improver obtained in this way can be used, for example, as a heat source for kilns in the cement manufacturing process, as a combustion improver in boilers at thermal power plants, and as a combustion improver in blast furnaces for steelmaking.

[0038] Ingot E contains at least about 20-30% by mass of oil B and about 70-80% by mass of waste plastic. As a fuel for burning this plastic, vegetable oil (oil B) has a higher calorific value per unit of mass than coal or waste plastic, making it superior. Furthermore, vegetable oil is a fuel obtained in the process of growing by absorbing carbon dioxide, so it is superior to coal and waste plastic in terms of carbon dioxide emissions. In particular, ingot E is produced by being reduced in volume as it is melted in melting device 4, and therefore does not contain excess components such as air or water. As a result, it has a high calorific value per unit of mass and is therefore suitable as a combustion improver.

[0039] 8, sterilization system 302 for infectious waste comprises sterilization container manufacturer terminal 310A used by container manufacturer 310 that manufactures and sells sterilized containers for infectious waste, medical institution terminal 320A used by medical institution 320 that performs sterilization treatment of infectious waste using sterilized containers, combustion improver manufacturer terminal 330A used by combustion improver manufacturer 330 that produces combustion improver from ingots obtained from the sterilization treatment, furnace owner terminal 340A used by furnace owner 340, server 370 that performs predetermined processing in response to requests from each of terminals 310A-340A, and communication line 380 that enables communication between each of terminals 310A-340A and server 370. Here, server 370 is owned by the manager of the sterilization system for infectious waste.

[0040] The sterilization process performed by the medical institution 320 uses a melting device 4 shown in Figure 2A. The melting device 4 applies pressure to the sterilization container (container A in Figure 2A, etc.) containing the infectious discharge DS from above while immersing the sterilization container (container A in Figure 2A, etc.) in oil B that is hotter than the melting point of the sterilization container. This sterilization process can simultaneously melt the sterilization container, sterilize the infectious discharge, and reduce the volume of the infectious discharge. Through this sterilization process, the infectious discharge is reduced in volume along with the sterilization container, becoming a plastic lump. When this lump is cooled as required, it solidifies and becomes an ingot.

[0041] A combustion improver manufacturer 330 performs a predetermined dividing process on the ingots. The divided ingots can be used as a combustion improver. A company 340 that owns a blast furnace uses the divided ingots as a combustion improver.

[0042] Each terminal 310A to 340A transmits a predetermined request signal to the server 370 in accordance with the operation of each user, and receives a predetermined calculation result from the request destination. A barcode reader, a QR code reader, or a smartphone with these applications installed can be used.

[0043] The communication line 380 may be either a wired communication line or a wireless communication line.

[0044] As shown in FIG. 9, the server 370 includes a CPU 371 , a RAM 372 , a ROM 373 , an external storage device 374 , an input device 375 , a display device 376 , an input / output interface 378 , and a bus 379 .

[0045] The CPU 371 is a so-called central processing unit, which executes various programs to realize various services of the server 370. The RAM 372 is a so-called RAM (random access memory), which is used as a work area for the CPU 371. The ROM 373 is a so-called ROM (read only memory), which stores the basic OS and various programs (for example, a discharge processing management program) executed by the CPU 371.

[0046] The external storage device 374 stores the results of calculations of various programs, and may be a built-in storage device (for example, a hard disk drive) or a removable storage device (for example, a memory card). The external storage device 374 may be connected via a communication line 380, such as a NAS (Network Attached Storage). The RAM 372, ROM 373, and external storage device 374 are collectively referred to as a storage unit.

[0047] The input device 375 is an input key, keyboard, or mouse, and is used to input various types of information. The display device 46 is a display that displays various operating states. The input / output interface 378 enables communication over a communication line 380 (FIG. 1). The input device 375, display device 376, and input / output interface 378 are collectively referred to as an input / output unit.

[0048] The bus 379 is a wiring that integrally connects the CPU 371, RAM 372, ROM 373, input device 375, display device 376, input / output interface 48, etc., and allows communication.

[0049] A history DB is constructed in the external storage device 374. The history DB stores history information (sterilization container history information) about sterilization containers used in the sterilization process of infectious waste. As shown in Fig. 10, the sterilization container history information includes sterilization container information about the sterilization container and history information associated with the sterilization container information.

[0050] The sterilization container information includes a container ID that is an identifier of the sterilization container, a container manufacturer ID that is an identifier of the manufacturer of the sterilization container, the manufacturer name, and container manufacturing date information that indicates the manufacturing date of the sterilization container.

[0051] The history information includes sales history related to the container sales history step, delivery history related to the delivery history step, sterilization history related to the sterilization history step, notification history related to the notification process step, ingot recovery history related to the ingot recovery history step, combustion improver production history related to the combustion improver production history step, combustion improver delivery history related to the combustion improver delivery history step, carbon dioxide reduction history, and combustion improver use history related to the combustion improver use history step. The carbon dioxide reduction history relates to the carbon dioxide reduction calculation step, the carbon dioxide reduction association step, the contribution calculation step, and the contribution association step. Each history includes the time when an event occurred, the names of people involved in the event, and their contact information. For example, taking the delivery history as an example, the delivery time information indicates the time when the sterilized container was delivered from the combustion improver manufacturer to the medical institution. The name of the deliverer is the name of the combustion improver manufacturer that is the deliverer. The contact information of the deliverer is the contact information (email address, phone number, etc.) of the combustion improver manufacturer that is the deliverer. The recipient company name is the name of the medical institution that is the recipient company. The recipient company contact information is the contact information (email address, telephone number, etc.) of the medical institution that is the recipient company.

[0052] When the basic OS and various programs stored in ROM 373 are executed by CPU 371, as shown in FIG. 11, CPU 371 of server 370 includes a DB control unit 371DB for controlling the search and editing of the history DB, a notification control unit 371NT for notifying external devices (e.g., terminals 310A to 340A, etc.), and a calculation unit 371CL for calculating a predetermined numerical value.

[0053] Next, a method for using the infectious waste sterilization system 302 will be described.

[0054] In the infectious waste sterilization system 302, a discharge treatment management method 360 is performed, as shown in Figure 12. The discharge treatment management method 360 includes a container sales history step 360A, a delivery history step 360B, a sterilization treatment history step 360C, a notification step 360D, an ingot recovery history step 360E, a combustion improver production history step 360F, a carbon dioxide reduction amount calculation step 360G, a carbon dioxide reduction amount association step 360H, a contribution degree calculation step 360J, a contribution degree association step 360K, a combustion improver delivery history step 360L, and a combustion improver usage history step 360M.

[0055] 13, when a container manufacturer 310 manufactures a sterilized container, it assigns a unique container ID to the sterilized container and affixes a barcode or the like corresponding to the container ID to the sterilized container. Various pieces of information (container ID, container manufacturer ID, container manufacturing date information, etc.) in the sterilized container information in the history DB are input by operation of container manufacturer 310 via terminal 310A. This causes the container ID, container manufacturer ID, container manufacturing date information, etc. to be associated with each other.

[0056] In container sales history step 360A, a sterilized container is sold from container manufacturer 310 to combustion improver manufacturer 330. At this time, a barcode or the like displayed on the sterilized container is read using terminal 310A or terminal 330A. In this way, the sales history regarding the sale (sales time information, seller's trader name, contact information for the seller's trader name, sold-to trader name, contact information for the sold-to trader name, etc.) is recorded in the history DB (S100). As a result, the sales history is associated with the container ID.

[0057] In delivery history step 360B, the sterilized container is handed over from combustion improver manufacturer 330 to medical institution 320. At this time, a barcode or the like displayed on the sterilized container is read using terminal 320A or terminal 330A. In this way, delivery history (medical institution delivery time information, medical institution ID, medical institution contact information, etc.) indicating that the sterilized container will be handed over from combustion improver manufacturer 330 to medical institution 320 is recorded in the history DB (S110). This associates the delivery history with the container ID.

[0058] In sterilization treatment history step 360C, a medical professional or the like at medical institution 320 reads a barcode or the like displayed on the sterile container using terminal 320A. As a result, a sterilization treatment history indicating that sterilization treatment of infectious waste using the sterile container was performed by medical institution 320 is recorded in the history DB (S120). This associates the sterilization treatment history with the container ID. Thereafter, the medical professional or the like at medical institution 320 sterilizes the infectious waste using the sterile container. Then, the medical professional or the like at medical institution 320 displays a barcode or the like corresponding to the container ID on the ingot obtained after sterilization treatment using the sterile container. Terminal 320A may associate sterilization treatment completion information indicating that sterilization treatment using the sterile container has been completed with the container ID when the ingot is produced.

[0059] In notification step 360D, server 370 notifies terminal 330A of combustion improver manufacturer 330 of the contents of the history information based on the recycler delivery history (S130). It is preferable that notification be made to terminal 330A of combustion improver manufacturer 330 when the sterilization processing history is recorded in the history DB.

[0060] In ingot recovery history step 360E, combustion improver manufacturer 330 recovers ingots from medical institution 320. At this time, terminal 320A or terminal 330A is used to read a barcode or the like displayed on the ingot. As a result, the ingot recovery history is associated with the container ID (S140).

[0061] In combustion improver production history step 360F, a barcode or the like displayed on the ingot is read using terminal 330A. Thereafter, the sterilized ingot collected from medical institution 320 is subjected to a division process (for example, a crushing process) by combustion improver manufacturer 330. Then, the combustion improver production history related to the division process is recorded in the history DB (S150). As a result, the combustion improver production history is associated with the container ID.

[0062] In carbon dioxide reduction calculation step 360G, the carbon dioxide reduction amount of the combustion improver manufacturing process is calculated based on the incineration process of infectious waste (S160). In carbon dioxide reduction association step 360H, the calculated carbon dioxide reduction amount of the combustion improver manufacturing process is stored in the history DB. As a result, the carbon dioxide reduction amount is associated with the container ID (S170). In contribution calculation step 360J, the contribution degree of the medical institution that contributed to the oilification process is calculated based on the combustion improver manufacturing process history (S180). Note that the contribution degree may not only be the contribution degree of the medical institution, but may also be allocated in a predetermined proportion to the medical institution, combustion improver manufacturer, container manufacturer, etc. involved here. In contribution degree association step 360K, contribution degree information indicating the contribution degree of the medical institution, etc. is recorded in the history DB. As a result, the contribution degree information is associated with the container ID (S190). Thereafter, a barcode or the like corresponding to the container ID is displayed on the combustion improver container.

[0063] Note that carbon dioxide reduction amount calculation step 360G may be performed together with the completion of combustion improver production history step 360F. Furthermore, a notification of the completion of combustion improver production may be sent to medical institution 320 after combustion improver production history step 360F. Furthermore, carbon dioxide reduction amount calculation step 360G may be performed in response to a request from medical institution 320, which has received the notification of the completion of combustion improver production, to server 370.

[0064] The carbon dioxide reduction amount is preferably usable as a credit under the carbon offset system. The credit may also be used as support funds for the medical industry (for example, medical refugee relief support funds).

[0065] In combustion improver delivery history step 360L, a barcode or the like displayed on the combustion improver container is read using terminal 320A or terminal 340A. A combustion improver delivery history indicating that the combustion improver is being delivered from combustion improver manufacturer 330 to furnace owner 340 is recorded in the history DB (S200). As a result, the combustion improver delivery history is associated with the container ID.

[0066] In combustion improver use history step 360M, a barcode or the like displayed on the combustion improver container is read using terminal 340A. After that, combustion treatment using the combustion improver is performed at furnace owner 340. Then, information on the combustion improver use time, etc., indicating that the combustion treatment was performed by furnace owner 340, is recorded in the history DB. As a result, the combustion improver use history is associated with the container ID (S210).

[0067] When the combustion improver use timing information and the like are recorded in the history DB, the server 370 may notify the medical institution 320 of the completion of the combustion improver use history step 360M.

[0068] As described above, according to the present invention, since the delivery history step 360B, the sterilization history step 360C, and the notification step 360D are provided, the delivery history and the sterilization history are associated. Therefore, the fuel manufacturer can know that the sterilization process for infectious waste was performed using the sterilization container that the manufacturer delivered. Therefore, the combustion improver manufacturer can reliably collect ingots that can be processed to manufacture combustion improvers from medical institutions.

[0069] Furthermore, since the system includes combustion improver production history step 360F and carbon dioxide reduction amount association step 360H, the combustion improver production history and the carbon dioxide reduction amount are linked. This provides an incentive for medical institutions to select combustion improver production processing as a method for treating infectious emissions. As a result, they are motivated to select the sterilization processing required for combustion improver production processing. Similarly, since the system includes sterilization processing history step 360C and carbon dioxide reduction amount association step 360H, the sterilization processing history and the carbon dioxide reduction amount are linked. This provides an incentive to select sterilization processing that contributes to carbon dioxide reduction as a method for treating infectious emissions.

[0070] Furthermore, since the contribution degree associating step 360K is provided, the sterilization process history and the amount of carbon dioxide reduction are linked, which provides a stronger motivation for medical institutions to select sterilization using sterilized containers as a method for treating infectious waste.

[0071] Furthermore, according to the present invention, the history from delivery to combustion treatment is linked with one container ID. Therefore, it is possible to identify the parties involved in the combustion treatment from the delivery history, and it is possible to determine whether or not illegal dumping has occurred between the delivery history and the combustion improver use history.

[0072] In the above embodiment, the combustion improver manufacturer 330 collected the ingots from the medical institution 320, performed the combustion improver manufacturing process (such as cutting the ingots), and delivered the combustion improver to the furnace owner 340, but the present invention is not limited to this. For example, the furnace owner 340 may collect the ingots from the medical institution 320, perform the combustion improver manufacturing process, and then use the combustion improver at its own facility.

[0073] In the above embodiment, predetermined information is added to the history DB, but the present invention is not limited to this. Predetermined information may be added on paper to create a history DB.

[0074] In the above embodiment, the ingot E contains approximately 20-30% by mass of oil B and approximately 70-80% by mass of waste plastics, but this is not limited to these ranges as long as it is within the scope of the present invention. For example, the ingot E may contain approximately 10-50% by mass of oil B and approximately 50-90% by mass of waste plastics. Note that "total" refers to the sum of oil B and waste plastics.

[0075] In the above embodiment, infectious waste materials are melted and sterilized, but the present invention can also be applied to other waste plastics.

[0076] The present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention. [Explanation of symbols]

[0077] 4 Melting equipment 6 Cooling Zone 8. Cutting device 10. Cabinet 100 Combustion improver manufacturing equipment 200 Combustion improver manufacturing method 302 Sterilization system for infectious waste

Claims

1. a storage means for storing predetermined information; an input / output unit for inputting and outputting predetermined signals; a combustion improver production history means for recording a combustion improver production history indicating that the combustion improver has been produced by a combustion improver manufacturer in a storage means; a carbon dioxide reduction amount associating means for associating the carbon dioxide reduction amount due to the production of the combustion improver with the production history of the combustion improver; a control means for controlling each device; 1. A sterilization system for infectious waste, comprising:

2. 2. The sterilization system for infectious waste according to claim 1, further comprising a sterilization history means for recording in a memory means a sterilization history indicating that the sterilization of infectious waste is carried out by a medical institution.

3. a storage means for storing predetermined information; an input / output unit for inputting and outputting predetermined signals; a sterilization history means for recording in a storage means a sterilization history indicating that the sterilization of infectious waste using the sterilization container is carried out by a medical institution; a combustion improver manufacturing unit that manufactures a combustion improver from an ingot obtained by sterilizing the infectious waste, and a carbon dioxide reduction amount correlation unit that correlates the carbon dioxide reduction amount resulting from the combustion improver manufacturing with the sterilization treatment history; a control means for controlling each device; A sterilization system for infectious waste, comprising:

4. a contribution calculation means for calculating a contribution of the medical institution that contributed to the production of the combustion improver; a contribution degree associating means for associating the calculated contribution degree of the medical institution with the medical institution based on the sterilization treatment history and the combustion improver production history; 4. The system for sterilizing infectious waste according to claim 1, further comprising:

5. a storage means for storing predetermined information; an input / output unit for inputting and outputting predetermined signals; a delivery history means for recording in a storage means a delivery history indicating that the sterilized container is delivered from the combustion improver manufacturer to the medical institution; a sterilization history recorder for recording in a storage unit a sterilization history indicating that the sterilization of infectious waste using the sterilization container is carried out by the medical institution; a notification means for notifying a combustion improver manufacturer of the sterilization treatment history associated with the delivery history; a control means for controlling each device; 1. A sterilization system for infectious waste, comprising:

6. a combustion improver manufacturing history means for recording in a storage means a combustion improver manufacturing history indicating that the combustion improver was manufactured by the combustion improver manufacturer for the infectious waste collected from the medical institution after sterilization treatment; a carbon dioxide reduction amount relating means for relating the history of the carbon dioxide reduction amount in the combustion improver production to the sterilization treatment history; 6. The infectious waste sterilization system according to claim 5, comprising:

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