Organic waste management system and disposer

Abstract

To provide a system for recovering organic waste discharged from a home to a sewage treatment facility through a sewer, and to provide a system for coping with the fluctuation of the organic waste discharged from the home.SOLUTION: The management system 1 includes flowmeters / densitometers 124 and 125 for measuring an amount of the sewerage organic wastes passing through a predetermined position of the sewerage 12, a sewerage organic wastes prediction unit 131C for predicting an amount of the sewerage organic wastes reaching the sewerage treatment facility 13 based on the measured amount of the sewerage organic wastes, an input calculation unit 131C for calculating an amount of the recovery organic wastes that can be input to the sewerage treatment facility 13 based on the amount of the sewerage organic wastes predicted by the sewerage organic wastes prediction unit 131E, and a display unit 131G for displaying the amount of the recovery organic wastes that can be input.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a resource circulation system that links the treatment of organic waste discharged into a sewer system with the treatment of organic waste collected by means other than a sewer system. [Background technology]

[0002] Traditionally, waste generated from homes, commercial facilities, etc. has been collected by local governments or businesses, separated, and then disposed of. For example, combustible waste and burnable waste from homes and commercial facilities are collected at waste disposal plants and incinerated.

[0003] Recently, methods have been considered for disposing of so-called food waste collected at waste disposal plants by microbial decomposition in sewage treatment facilities, with some social experiments being conducted. For example, organic waste, such as food waste, is considered to be a source of energy that can be used to obtain methane gas (biogas) through fermentation, and its utilization is being considered (see Patent Documents 1 to 3). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-167165 [Patent Document 2] Japanese Patent Application Publication No. 2020-6291 [Patent Document 3] Patent No. 3484539 Summary of the Invention [Problem to be solved by the invention]

[0005] In this regard, at sewage treatment facilities that process organic waste and generate biogas (such as methane gas), there is a limit (upper limit) to the amount of organic waste that can be processed due to constraints on the size and processing capacity of the facility, but in order to operate continuously and efficiently, it is necessary to manage the input of a minimum (lower limit) amount of organic waste.

[0006] However, while it is difficult to efficiently collect organic waste, such as food waste, from the waste generated by each household, it is possible to grasp to some extent the amount and timing of organic waste generated by commercial facilities that handle food.

[0007] Therefore, the present invention provides a system for collecting food waste discharged from households via sewerage systems and sending it to sewage treatment facilities, and further provides a system for controlling the amount of food waste input to sewage treatment facilities by understanding fluctuations in the amount of food waste discharged from households. [Means for solving the problem]

[0008] The present invention provides an organic waste management system for a sewage treatment facility that processes sewage-based organic waste discharged into a sewer system and recovery-based organic waste recovered by means other than the sewer system and generates biogas, an organic waste amount measuring unit that is installed at a predetermined position in the sewer system and measures the amount of sewerage-based organic waste that passes through the predetermined position; a prediction unit that predicts the amount of sewage-related organic waste that will reach the sewage treatment facility based on the amount of sewage-related organic waste measured by the organic waste amount measurement unit; and a calculation unit that calculates the amount of the recovered organic waste that can be input to the sewage treatment facility based on the amount of the sewage organic waste predicted by the prediction unit; a display unit that displays the amount of recovered organic waste that can be introduced into the sewage treatment facility calculated by the calculation unit; and It is equipped with:

[0009] Sewage treatment facilities that process organic waste discharged into sewer systems and generate biogas have a limit (upper limit) on the amount of organic waste that can be processed due to constraints on the facility's size and processing capacity, but in order to operate continuously and efficiently, it is necessary to manage the minimum (lower limit) amount of organic waste that is input. Generally, the amount of organic waste discharged into the sewer system from each household fluctuates and is not constant depending on factors such as the season, day of the week, time of day, etc. Also, it is difficult to store large amounts of organic waste from the sewer system, so it must be treated successively. On the other hand, the amount and timing of collected organic waste generated by businesses (commercial facilities, food companies, etc.) can be determined to some extent. Also, collected organic waste is collected by collection vehicles, so it is relatively easy to store. Therefore, according to the above configuration, the amount of sewerage-related organic waste that will reach the sewage treatment facility can be predicted from the amount of sewerage-related organic waste measured by the organic waste amount measurement unit, and the amount and timing of recovered organic waste to be input into the sewage treatment facility can be determined (in accordance with fluctuations in the amount of sewage-related organic waste that reaches the sewage treatment facility). This allows the sewage treatment facility to operate continuously and efficiently while sequentially treating the sewage-related organic waste discharged into the sewer system.

[0010] The present invention also provides the organic waste management system, The prediction unit may predict the amount of sewage-related organic waste that will reach the sewage treatment facility, taking into account the operating status of a disposer.

[0011] Generally, organic waste generated from each household is collected by waste collection trucks along with other waste, and due to the difficulty of separating it, it has been difficult to utilize it for generating biogas, etc. However, with the spread of disposers that crush food waste in homes, it has become possible to discharge the crushed food waste into the sewer as organic waste. Therefore, by taking into consideration the operating status of each disposer installed in each home, it is possible to more accurately predict the amount of sewage-related organic waste that will reach the sewage treatment facility. Furthermore, since the operating status of each disposer installed in each home is the most up-to-date information on the timing of organic waste generation, it is possible to quickly predict the amount of sewage-related organic waste that will reach the sewage treatment facility.

[0012] The present invention also provides the organic waste management system, The wastewater treatment facility may be provided with an input control unit that controls the amount of recovery organic waste to be input into the sewage treatment facility based on the amount of recovery organic waste that can be input calculated by the calculation unit.

[0013] According to the above configuration, the input control unit controls the amount of recovery organic waste input into the sewage treatment facility based on the amount of recovery organic waste that can be input calculated by the calculation unit, thereby enabling the sewage treatment facility to operate more continuously and efficiently while sequentially treating the sewage organic waste.

[0014] The present invention also provides an organic waste management system at a sewage treatment facility that processes sewage-based organic waste discharged into a sewer system and recovery-based organic waste recovered by means other than the sewer system and generates biogas, an organic waste amount measuring unit that is installed at a predetermined position in the sewer system and measures the amount of sewerage-based organic waste that passes through the predetermined position; a prediction unit that predicts the amount of sewage-related organic waste that will reach the sewage treatment facility based on the amount of sewage-related organic waste measured by the organic waste amount measurement unit; and a calculation unit that calculates the amount of the recovered organic waste that can be input to the sewage treatment facility based on the amount of the sewage organic waste predicted by the prediction unit; an input control unit that controls the amount of the recovery organic waste to be input into the sewage treatment facility based on the amount of the recovery organic waste that can be input calculated by the calculation unit; It is equipped with:

[0015] According to the above configuration, the input control unit controls the amount of recovery organic waste input into the sewage treatment facility based on the amount of recovery organic waste that can be input calculated by the calculation unit, thereby enabling the sewage treatment facility to operate more continuously and efficiently while sequentially treating the sewage organic waste.

[0016] The present invention also provides an organic waste management system for a sewage treatment facility that processes sewage-based organic waste, including organic waste treated by a disposer, and recovered organic waste recovered by means other than the sewer system, and generates biogas, A transmitting unit installed for each disposer and transmitting the operating status of the disposer; a prediction unit that predicts the amount of sewage-based organic waste that will arrive at the sewage treatment facility based on the operating status of the disposer transmitted from the transmission unit; a calculation unit that calculates the amount of the recovered organic waste that can be input to the sewage treatment facility based on the amount of the sewage organic waste predicted by the prediction unit; a display unit that displays the amount of recovered organic waste that can be introduced into the sewage treatment facility calculated by the calculation unit; and It is equipped with:

[0017] According to the above configuration, the amount of sewage-related organic waste that will reach the sewage treatment facility can be predicted from the operating status (operating time, rotation speed, operating time) of the disposers installed in each home, etc., and the amount and timing of recovered organic waste to be input into the sewage treatment facility can be determined (in accordance with fluctuations in the amount of sewage-related organic waste that reaches the sewage treatment facility). This allows the sewage treatment facility to operate continuously and efficiently while sequentially treating sewerage-based organic waste, including organic waste treated by disposers, that is discharged into the sewer system.

[0018] The present invention also provides a crushing unit having a motor that rotates blades; a transmitting unit that transmits the operating status of the motor in the crushing unit to an outside as operating information; This is a disposer equipped with the above.

[0019] According to the above configuration, when the disposer is installed in each home, the operating status of the motor of the grinding unit in each disposer, which grinds food waste and other materials into organic waste, can be transmitted to the outside as operating information (operating time, rotation speed (grinding force), operating time). This allows each home to know the timing and amount of sewerage-based organic waste discharged into the sewer system due to the use of the disposer.

[0020] The present invention also provides a management system for organic waste at a sewage treatment facility that processes organic waste discharged into a sewer and generates biogas, comprising: At least one or more of the disposers described above; a prediction unit that predicts the amount of the organic waste that will reach the sewage treatment facility based on the operation information transmitted from the transmission unit of the disposer; The device may also include:

[0021] According to the above configuration, the sewage treatment facility can predict the amount of organic waste that will reach the sewage treatment facility by understanding the timing and amount of sewage-related organic waste that is discharged into the sewer system due to the use of disposers in each household. [Effects of the Invention]

[0022] It is possible to provide a system for collecting organic waste discharged from households via sewerage systems and sending it to sewage treatment facilities, and further to provide a system for responding to fluctuations in the amount of organic waste discharged from households. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is an explanatory diagram of a management system according to a first embodiment. [Figure 2] 1 is a schematic block diagram of a management system according to a first embodiment. [Figure 3] 4 is a flowchart of a processing operation of the management system according to the first embodiment. [Figure 4] 10 is a flowchart of the processing operation of a management system according to a second embodiment. [Figure 5] 11 is a flowchart of the processing operation of a management system according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0024] (Embodiment 1) A management system 1 for organic waste in a sewage treatment facility according to a first embodiment of the present invention will be described below.

[0025] (Management System 1) As shown in FIG. 1, this embodiment is implemented as an organic waste management system 1 for treating sewage-related organic waste discharged from disposers 111 of each household 11 into a sewer system 12 (sewer pipes 121, pump machinery equipment 122, sewage receiving facilities 123), and recovery-related organic waste collected by garbage trucks 15 from commercial facilities 14 that handle food to a collection facility 16, in order to generate methane gas (biogas).

[0026] Here, in this embodiment, with regard to organic waste, organic waste transported to the sewage treatment facility 13 via the sewer 12 is defined as sewage-based organic waste, and organic waste transported to the sewage treatment facility 13 from commercial facilities 14, etc. (organic waste recovered by means other than the sewer 12) is defined as recovery-based organic waste.

[0027] Generally, the amount of sewage-related organic waste discharged into the sewer system 12 from each household 11, etc., fluctuates depending on factors such as the season, day of the week, and time of day, and is not constant. In addition, it is difficult to store a relatively large amount of sewage-related organic waste, and it is therefore necessary to treat it successively at a sewage treatment facility 13. On the other hand, the amount and timing of collected organic waste generated by commercial facilities 14 that handle food can be ascertained to some extent. Also, collected organic waste is collected by garbage collection trucks 15, so it is relatively easy to store and its destination can be conveniently changed (it can be transported to another treatment facility).

[0028] (Disposer 111 installed in home 11) As shown in Fig. 1, a household 11 is equipped with a garbage disposer 111. Here, the household 11 refers to a facility (such as an ordinary home, an apartment building, or a commercial facility) within the jurisdiction of a sewage treatment facility 13 that uses a sewer 12. As shown in Figure 2, the disposer 111 is equipped with a grinding unit 114 having a motor 113 that rotates the blades 112, a memory unit 115 that stores the operating status of the motor 113 in the grinding unit 114, such as the operating time, rotation speed, and operating time, as operating information of the disposer 111, and a transmission unit 116 that transmits the operating information of the motor 113 stored in the memory unit 115 to the sewage treatment facility 13.

[0029] When the above-mentioned disposer 111 is installed in the home 11, the operating status of the motor 113 of the crushing unit 114, which crushes food waste into sewerage organic waste, such as the operating time, rotation speed, and operating time, can be transmitted to the sewage treatment facility 13 as operating information of the disposer 111. This allows the sewage treatment facility 13 to roughly estimate the timing and amount of sewerage organic waste that will be discharged into the sewer 12 due to the use of the disposer 111 in the home 11.

[0030] (Sewer 12) The sewerage system 12 is composed of a sewer pipe 121 (mainly a sewer pipe) that carries sewage, including sewage-related organic waste discharged from disposers 111 of homes 11, to a sewage treatment facility 13, a pumping machine 122 that pumps up the sewage, and a sewage receiving facility 123 that receives the sewage pumped up by the pumping machine 122.

[0031] As shown in Figure 2, the pump mechanical equipment 122 is equipped with a flow meter / concentration meter 124 (corresponding to an organic waste amount measuring unit) for measuring the amount of sewage-related organic waste contained in the sewage passing through the pump mechanical equipment 122, and a transmission unit 124A for transmitting the value measured by the flow meter / concentration meter 124 to the sewage treatment facility 13. For example, since the cross-sectional area of ​​the sewer pipe in the pump mechanical equipment 122 is predetermined, one method is to measure the flow rate of the sewage passing through the sewer pipe, and use the product of the cross-sectional area of ​​the sewer pipe and the flow rate as the sewage flow rate, and then calculate (measure) the amount of sewerage organic waste by multiplying the flow rate of the sewage by the concentration of the sewage organic waste measured by a concentration meter. In addition, in order to measure the amount of sewerage-related organic waste, it is not necessary to use the flow meter / concentration meter 124, but it is also possible to measure the amount of sewerage-related organic waste contained in the sewage passing through the pumping machinery equipment 122 by installing a weight scale or the like in the sewer pipe of the pumping machinery equipment 122. Similarly, a flow meter / concentration meter 125 is also installed in the sewage receiving facility 123 to measure the amount of sewage-related organic waste contained in the sewage passing through the sewage receiving facility 123 .

[0032] (Commercial facilities 14) Examples of commercial facilities 14 include food sales facilities, restaurants, factories that manufacture boxed lunches and prepared foods, etc. Food waste discharged from such food-handling commercial facilities 14 can be considered as recovered organic waste, and the amount and timing of generation can be determined to some extent. Therefore, food waste discharged from commercial facilities 14 and the like can be transported by garbage trucks 15 as regular, fixed amounts (the amount of food waste can be determined) of recoverable organic waste to collection facility 16. The collection facility 16 can transmit the amount of collected organic waste it has stored to sewage treatment facility 13.

[0033] (Sewage Treatment Facility 13) As shown in FIG. 1, the sewage treatment facility 13 includes a management section 131, a pretreatment facility 132, a fermenter 133, and a gas holder tank .

[0034] The management unit 131 includes a computer that can manage and control the entire management system 1. As shown in FIG. a disposer data processing unit 131A that predicts "the timing and amount of wastewater-based organic waste discharged into the sewer system 12 from each household 11 included in the jurisdiction using the sewer system 12 based on the operation information (operation time, rotation speed, operation time, etc.) of the disposer 111 of each household 11 transmitted from the transmission unit 116 of the disposer 111 installed in each household 11"; a sewerage data processing unit 131B that calculates the "amount of sewage-related organic waste contained in the sewage passing through the pump mechanical equipment 122" based on "values ​​measured by the flow meter / concentration meter 124 transmitted from a transmitting unit 124A installed in the pump mechanical equipment 122," and calculates the "amount of sewage-related organic waste contained in the sewage passing through the sewage receiving facility 123" based on "values ​​measured by the flow meter / concentration meter 125 transmitted from a transmitting unit (not shown) installed in the sewage receiving facility; It has the function of a sewage-system organic waste prediction unit 131C that "predicts the amount and time of arrival of sewage-system organic waste at the sewage treatment facility 13 via the sewer 12 based on the information predicted by the disposer data processing unit 131A and the information calculated by the sewerage data processing unit 131B (i.e., predicts the amount of sewage-system organic waste that will arrive at the sewage treatment facility 13 over time)."

[0035] As shown in FIG. 2, the computer of the management unit 131 An operation rate calculation unit 131D that calculates the "operation status of the sewage treatment facility 13 (amount of organic waste being treated)"; It has a function as an input calculation unit 131E that calculates the amount of recovered organic waste that can be input to the pretreatment facility 132 over time, based on the "amount of sewage-related organic waste that reaches the sewage treatment facility 13 over time" predicted by the sewage-related organic waste prediction unit 131C, the "operational status of the sewage treatment facility 13 (amount of organic waste being treated)" and the "organic waste treatment capacity at the sewage treatment facility 13" calculated by the operation rate calculation unit 131D.

[0036] As shown in FIG. 2, the computer of the management unit 131 also functions as an input control unit 131F that controls the "amount of recovery-type organic waste to be input from the recovery facility 16 to the pre-treatment facility 132 over time" based on the "storage amount of recovery-type organic waste transported to the recovery facility 16" and the "amount of recovery-type organic waste that can be input to the pre-treatment facility 132 over time" calculated by the input calculation unit 131E.

[0037] As shown in FIG. 2, the computer of the management unit 131 is provided with a display unit 131G that can display the results of calculations etc. performed by the disposer data processing unit 131A, the sewerage data processing unit 131B, the sewerage organic waste prediction unit 131C, the operating rate calculation unit 131D, and the input calculation unit 131E, and a communication unit 131H that receives information transmitted from the transmission unit 116 of the disposer 111, the transmission unit 124A installed in the pump mechanical equipment 122, etc.

[0038] As shown in Fig. 1, the pretreatment facility 132 is equipped with a pulverizer 132A and a slurry tank 132B. The pulverizer 132A is a machine that pulverizes the recovery-type organic waste that has been transported to the recovery facility 16 from the commercial facility 14, etc. The slurry tank 132B is a tank that stores the recovery-type organic waste that has been pulverized by the pulverizer 132A. The slurry tank 132B is capable of transmitting the amount of recovery-type organic waste stored in the slurry tank 132B to the sewage treatment facility 13.

[0039] The fermenter 133 is a facility that generates methane gas (biogas) using methane fermentation bacteria from sewage-related organic waste contained in sewage transported from the sewage receiving facility 123 of the sewerage system 12 and recovered organic waste stored in the slurry tank 132B. The fermenter 133 is capable of transmitting the amount of organic waste being fermented in the fermenter 133 to the sewage treatment facility 13.

[0040] The gas holder tank 134 is a tank for storing the methane gas generated in the fermenter 133 . The methane gas stored in the gas holder tank 134 can be burned as is, and can therefore be utilized as a gas supply resource. Furthermore, the methane gas stored in the gas holder tank 134 is sent to the gas power generation facility 17 and can be used as electrical energy (energy saving) (used as electricity in the sewage treatment facility 13, sold, etc.).

[0041] (Processing operation of management system 1) The processing operation of the management system 1 will be described below with reference to the flowchart of FIG.

[0042] (A: Estimates of organic waste discharged from households through sewage systems) When the disposer 111 is used in each home 11, the operating status of the motor 113 in the crushing section 114, such as the operating time, rotation speed, and operating time, is stored in the memory section 115 as operating information of the disposer 111. For example, the operating status of the motor 113 of the disposer 111, such as the operating time and operating duration, is measured by the timing and duration of current flowing through the motor 113, and the operating status of the motor 113, such as the rotation speed, is measured by the amount of current flowing through the motor 113, etc.

[0043] The operation information of the disposer 111 stored in the memory unit 115 is transmitted by the transmission unit 116 to the management unit 131 of the sewage treatment facility 13.

[0044] In the management unit 131, the computer's disposer data processing unit 131A compiles "operation information (operation time, rotation speed, operation time, etc.) of the disposer 111 in each home 11 transmitted from the transmission unit 116 of the disposer 111 installed in each home 11." Then, based on the collected operation information of the disposer 111 of each household 11, the disposer data processing unit 131A predicts the timing and amount of sewerage-related organic waste to be discharged into the sewer 12 from each household 11 included in the jurisdiction that uses the sewer 12. For example, if the operating times of the disposers 111 in each household 11 are known, it is possible to estimate the time it takes for the sewage-related organic waste to reach the sewage treatment facility 13 through the sewer 12 based on information such as the timing of discharge of the sewage-related organic waste from each household 11 into the sewer 12, and furthermore, the distance of the sewer 12. Furthermore, if the rotation speed and operating time of the disposer 111 in each home 11 are known, the amount of sewerage-related organic waste discharged from each home 11 into the sewer system 12 can be estimated.

[0045] (B: Measure the amount of organic waste passing through the sewer system from the values ​​of flow meters and concentration meters) In the pump mechanical equipment 122 of the sewerage system 12, values ​​measured by the flow meter / concentration meter 124 for the sewage passing through the pump mechanical equipment 122 are transmitted to the management unit 131 of the sewage treatment facility 13 by the transmission unit 124A. Similarly, in the sewage receiving facility 123 of the sewerage system 12, the values ​​measured by the flow meter / concentration meter 125 for the sewage passing through the sewage receiving facility 123 are transmitted to the management unit 131 of the sewage treatment facility 13 by a transmitting unit (not shown).

[0046] In the management unit 131, the sewerage data processing unit 131B of the computer calculates the "amount of sewerage-related organic waste contained in the sewage passing through the pump mechanical equipment 122" based on the "values ​​measured by the flow meter / concentration meter 124 transmitted from the transmitting unit 124A installed in the pump mechanical equipment 122." For example, since the cross-sectional area of ​​the sewer pipe in the pump mechanical equipment 122 is predetermined, the flow rate of the sewage passing through the sewer pipe is measured, and the product of the cross-sectional area of ​​the sewer pipe and the flow rate is taken as the sewage flow rate, and the product of the sewage flow rate and the concentration of the sewage-related organic waste measured by a concentration meter is calculated (measured) as the amount of sewage-related organic waste. Similarly, the sewerage data processing unit 131B calculates the "amount of sewage-related organic waste contained in the sewage passing through the sewage receiving facility 123" based on the "values ​​measured by the flow meter / concentration meter 125 transmitted from the transmitting unit installed in the sewage receiving facility."

[0047] (C: Estimate the amount of organic waste that reaches the sewage treatment plant) Next, the sewage-related organic waste prediction unit 131C of the computer of the management unit 131 predicts the amount and time of sewage-related organic waste that will reach the sewage treatment facility 13 via the sewer 12, based on the "discharge timing and amount of sewage-related organic waste discharged into the sewer 12 from each household 11 included in the jurisdiction that uses the sewer 12" predicted by the disposer data processing unit 131A, the "amount of sewage-related organic waste contained in the sewage passing through the pump mechanical equipment 122" calculated by the sewer data processing unit 131B, and the "amount of sewage-related organic waste contained in the sewage passing through the sewage receiving facility 123" calculated by the sewer data processing unit 131B. In other words, it predicts the amount of sewage-related organic waste that will reach the sewage treatment facility 13 over time.

[0048] (D: Calculate the amount of recoverable organic waste that can be input) Next, the operation rate calculation unit 131D of the computer in the management unit 131 calculates the "operational status of the sewage treatment facility 13 (amount of organic waste being treated)." Specifically, the value obtained by adding the amount of recovered organic waste stored in the slurry tank 132B of the pretreatment facility 132 and the amount of organic waste being fermented in the fermenter 133 is calculated as the "operating status of the sewage treatment facility 13 (amount of organic waste being treated)."

[0049] Then, the input calculation unit 131E of the computer in the management unit 131 calculates the "amount of recovered organic waste that can be input to the pretreatment facility 132 over time" based on the "amount of sewage-related organic waste that will arrive at the sewage treatment facility 13 over time" predicted by the sewage-related organic waste prediction unit 131C, the "operational status of the sewage treatment facility 13 (amount of organic waste being treated)" and the "organic waste treatment capacity at the sewage treatment facility 13" calculated by the operation rate calculation unit 131D. Specifically, the "amount of recovered organic waste that can be input into the pretreatment facility 132 over time" is calculated as the value obtained by subtracting the "operating status of the sewage treatment facility 13 (amount of organic waste being treated)" and the "amount of sewage-related organic waste that reaches the sewage treatment facility 13 over time" from the "organic waste treatment capacity (capacity) of the sewage treatment facility 13."

[0050] (E: Shows the amount of recoverable organic waste that can be put in) Next, the computer of the management unit 131 displays "the amount of recovered organic waste that can be input into the pretreatment facility 132 over time" on the display unit 131G. For example, the amount of recoverable organic waste that can be input to the pretreatment facility 132 at the selected time may be displayed as a numerical value, or may be displayed as a two-dimensional graph with the horizontal axis representing time and the vertical axis representing the amount of recoverable organic waste that can be input to the pretreatment facility 132.

[0051] (F: Control the amount of collected organic waste input) Next, the input control unit 131F of the computer of the management unit 131 controls the "amount of recovery-type organic waste to be input from the recovery facility 16 to the pretreatment facility 132 over time" based on the "storage amount of recovery-type organic waste transported to the recovery facility 16" and the "amount of recovery-type organic waste that can be input to the pretreatment facility 132 over time" calculated by the input calculation unit 131E. Here, controlling "the amount of recovered organic waste input from the recovery facility 16 to the pretreatment facility 132 over time" includes adjusting the amount and timing of recovered organic waste transported from the garbage truck 15 to the recovery facility 16, adjusting the amount and timing of recovered organic waste input from the recovery facility 16 to the crusher 132A, and adjusting the amount and timing of recovered organic waste transferred from the slurry tank 132B to the fermenter 133.

[0052] In the above process, the input control unit 131F of the computer in the management unit 131 controls the "amount of recovery-type organic waste input from the recovery facility 16 to the pretreatment facility 132 over time", but this is not limited to this. A manager or the like may look at the "amount of recovery-type organic waste that can be input to the pretreatment facility 132 over time" displayed on the display unit 131G and control the "amount of recovery-type organic waste to be input from the recovery facility 16 to the pretreatment facility 132" using an input device or the like.

[0053] According to the management system 1, in the sewage treatment facility 13, sewage-related organic waste discharged into the sewer system from homes 11 and the like is successively transferred to the fermentation tank 133, and recovered organic waste corresponding to the time fluctuation of the amount of sewage-related organic waste transferred to the fermentation tank 133 can be input into the fermentation tank 133. This allows the methane gas production process in the sewage treatment facility 13 to operate continuously and efficiently.

[0054] Furthermore, conventionally, organic waste discharged from each household 11 was collected by garbage trucks together with other waste, and due to the difficulty of separating it, it was difficult to utilize it for generating biogas, etc. However, with the widespread use of food disposers 111 that crush food waste in households 11, the crushed food waste can be discharged into the sewer system 12 as sewer-based organic waste. Therefore, by taking into consideration the operating status of each disposer 111 installed in each home 11, it is possible to more accurately predict the amount and time of arrival of sewage-related organic waste at the sewage treatment facility 13 via the sewer 12. Furthermore, since the operating status of each disposer 111 installed in each home 11 is the latest information regarding the timing of the generation of sewage-based organic waste, it is possible to quickly predict the amount and time of arrival of sewage-based organic waste at the sewage treatment facility 13 via the sewer 12.

[0055] In addition, in the past, organic waste was collected by using garbage trucks (powered by gasoline, etc.) to collect heavy food waste and dispose of it at incineration facilities using thermal energy, but this food waste can now be used as an energy source for biogas, etc.

[0056] (Embodiment 2) In the management system 201 of embodiment 2, as shown in the flowchart of Figure 4, in the process of "C: Predicting the amount of sewage-related organic waste that will reach the sewage treatment facility" of embodiment 1, the sewage-related organic waste prediction unit 131C of the computer of the management unit 131 may predict the amount and arrival time of the sewage-related organic waste that will reach the sewage treatment facility 13 via the sewer 12 based on the "discharge timing and amount of sewage-related organic waste discharged into the sewer 12 from each household 11 included in the jurisdiction that uses the sewer 12" predicted by the disposer data processing unit 131A.

[0057] (Embodiment 3) In the management system 301 of embodiment 3, as shown in the flowchart of Figure 5, in the process of "C: Predicting the amount of sewage-related organic waste that will reach the sewage treatment facility" of embodiment 1, the sewage-related organic waste prediction unit 131C of the computer of the management unit 131 may predict the amount and time of arrival of sewage-related organic waste that will reach the sewage treatment facility 13 via the sewer 12, based on the "amount of sewage-related organic waste contained in the sewage passing through the pump mechanical equipment 122" calculated by the sewerage data processing unit 131B and / or the "amount of sewage-related organic waste contained in the sewage passing through the sewage receiving facility 123" calculated by the sewerage data processing unit 131B.

[0058] (Other embodiments) (1) In the above embodiment, the organic waste from the sewer system is exemplified as organic waste discharged from the disposer 111 of each household 11, but it may also include excrement discharged from the household 11. For example, the operating status of the large and small flush buttons of the toilet, the Washlet (registered trademark), etc. may be transmitted to the sewage treatment facility 13 as toilet operating information.

[0059] (2) In the above embodiment, examples of the organic waste collected include food waste generated from food sales facilities, restaurants, and factories that manufacture boxed lunches and prepared foods, but it may also include feces and urine from the livestock industry.

[0060] (3) In the above embodiment, "methane gas" is exemplified as the "biogas" generated in the sewage treatment facility 13. However, for example, carbon dioxide, ammonia, hydrogen sulfide, or the like may also be generated.

[0061] (4) In the process of “F: Controlling the amount of collected organic waste to be input” in the above embodiment, when adjusting the amount of collected organic waste to be transported from the garbage collection truck 15 to the collection facility 16, if the “amount of collected organic waste to be input from the collection facility 16 to the pre-treatment facility 132 over time” is below a predetermined value (i.e., if there is no need to input collected organic waste from the collection facility 16 to the pre-treatment facility 132), arrangements may be made for the garbage collection truck 15 to transport the collected organic waste to a treatment facility other than the collection facility 16.

[0062] (5) In the process of “F: Controlling the amount of collected organic waste to be input” in the above embodiment, a weight sensor may be provided on the garbage collection truck 15 to calculate the total amount of collected organic waste collected by each garbage collection truck 15, and the calculated total amount of collected organic waste may be considered as the “storage amount of collected organic waste transported to the collection facility 16.” [Explanation of symbols]

[0063] 1 Management System 11 Home 111 Garbage Disposer 12 Sewer 121 Sewer pipe 122 Pump machinery equipment 123 Sewage Receiving Facility 124·125 Flowmeter / Concentration meter 13 Sewage Treatment Plant 131 Management Department 131A Disposer data processing unit 131B Sewerage Data Processing Unit 131C Sewerage Organic Waste Forecasting Division 131D Availability Calculation Unit 131E Input calculation section 131F Input control unit 131G Display section 131H Communications Department 132 Pretreatment Facility 132A Crusher 132B Slurry Tank 133 Fermenter 134 Gas holder tank 14 Commercial Facilities 15 Garbage Truck 16 Collection Facility 17 Gas power generation facilities

Claims

1. A management system for organic waste at a sewage treatment facility that processes sewage-based organic waste discharged into a sewer system and recovered organic waste recovered by means other than the sewer system and generates biogas, an organic waste amount measuring unit that is installed at a predetermined position in the sewer system and measures the amount of sewerage-based organic waste that passes through the predetermined position; a prediction unit that predicts the amount of sewage-related organic waste that will reach the sewage treatment facility based on the amount of sewage-related organic waste measured by the organic waste amount measurement unit; and a calculation unit that calculates the amount of the recovered organic waste that can be input to the sewage treatment facility based on the amount of the sewage organic waste predicted by the prediction unit; a display unit that displays the amount of recovered organic waste that can be introduced into the sewage treatment facility calculated by the calculation unit; and An organic waste management system equipped with:

2. 2. The organic waste management system according to claim 1, wherein the prediction unit predicts the amount of sewage-based organic waste that will reach the sewage treatment facility, taking into account the operating status of a disposer.

3. 3. The organic waste management system according to claim 1, further comprising an input control unit that controls the amount of recovery organic waste to be input into the sewage treatment facility based on the amount of recovery organic waste that can be input calculated by the calculation unit.

4. A management system for organic waste at a sewage treatment facility that processes sewage-based organic waste discharged into a sewer system and recovered organic waste recovered by means other than the sewer system and generates biogas, an organic waste amount measuring unit that is installed at a predetermined position in the sewer system and measures the amount of sewerage-based organic waste that passes through the predetermined position; a prediction unit that predicts the amount of sewage-related organic waste that will reach the sewage treatment facility based on the amount of sewage-related organic waste measured by the organic waste amount measurement unit; and a calculation unit that calculates the amount of the recovered organic waste that can be input to the sewage treatment facility based on the amount of the sewage organic waste predicted by the prediction unit; an input control unit that controls the amount of the recovery organic waste to be input into the sewage treatment facility based on the amount of the recovery organic waste that can be input calculated by the calculation unit; An organic waste management system equipped with:

5. A management system for organic waste at a sewage treatment facility that processes sewage-based organic waste, including organic waste treated by a disposer, and recovered organic waste recovered by means other than the sewer system, and generates biogas, A transmitting unit installed for each disposer and transmitting the operating status of the disposer; a prediction unit that predicts the amount of sewage-based organic waste that will arrive at the sewage treatment facility based on the operating status of the disposer transmitted from the transmission unit; a calculation unit that calculates the amount of the recovered organic waste that can be input to the sewage treatment facility based on the amount of the sewage organic waste predicted by the prediction unit; a display unit that displays the amount of recovered organic waste that can be introduced into the sewage treatment facility calculated by the calculation unit; and An organic waste management system equipped with:

6. a crushing unit having a motor that rotates the blades; a transmitting unit that transmits the operating status of the motor in the crushing unit to an outside as operating information; A disposer equipped with

7. A management system for organic waste at a sewage treatment facility that processes organic waste discharged into a sewer and generates biogas, At least one disposer according to claim 6; a prediction unit that predicts the amount of the organic waste that will reach the sewage treatment facility based on the operation information transmitted from the transmission unit of the disposer; An organic waste management system equipped with:

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