Wastewater treatment system and wastewater treatment method

Abstract

To control the driving of a waste water saponification apparatus on the basis of the set driving condition of a timer or the like and to control the injection of a chemical agent on the basis of the driving condition or the residual amt. of the chemical agent.SOLUTION: The present invention is a wastewater treatment system comprising a chemical injection device, a wastewater saponification device, and a management device for managing the chemical injection device and the wastewater saponification device, wherein the management device controls driving of the wastewater saponification device and the chemical injection device based on the driving condition.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a technique for treating wastewater using a grease trap or the like. [Background technology]

[0002] Conventionally, wastewater from kitchens such as restaurants is stored in grease traps, cleaned, and then discharged into public sewer pipes. Various technologies have been proposed for cleaning such grease traps.

[0003] Here, Patent Document 1 discloses a management system having a store terminal installed in a store and a management device connected to the store terminal via a network, in which the store terminal has a pollution information sending unit that sends pollution level information indicating the degree of pollution related to the grease trap installed in the store to the management device, and the management device has an acquisition unit that acquires pollution level information from the store terminal, a trend acquisition unit that acquires trend information indicating the trend of pollution in the grease trap for each store based on the acquired pollution level information, and an output control unit that outputs cleaning information related to the cleaning of the grease trap based on the trend information. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2021-128463 Summary of the Invention [Problem to be solved by the invention]

[0005] However, Patent Document 1 does not disclose that the management device controls the operation of the wastewater saponification device based on operating conditions such as a set timer, or controls the injection of chemicals based on the remaining amount of chemicals, etc.

[0006] The present invention has been made in consideration of such problems, and its purpose is to provide a technology for controlling the operation of a wastewater saponification device based on operating conditions such as a set timer, and for controlling the injection of chemicals, etc. based on the operating conditions and the remaining amount of chemicals, etc. [Means for solving the problem]

[0007] In order to solve the above problems, a wastewater treatment system according to one embodiment of the present invention comprises a chemical injection device, a wastewater saponification device, and a management device that manages the chemical injection device and the wastewater saponification device, and the management device controls the operation of the wastewater saponification device and the chemical injection device based on the operating conditions.

[0008] Another aspect of the wastewater treatment method of the present invention includes a step in which a management device controls the operation of a wastewater saponification device and a chemical injection device based on operating conditions; a step in which a history management unit manages the chemical use history of the chemical injection device and the operation history of the wastewater saponification device, and transmits the chemical use history and the operation history to an integrated management device at a predetermined timing; and a step in which the integrated management unit integrates and manages the received chemical use history and the operation history, and calculates a usage fee based on the chemical use history and the operation history. [Effects of the Invention]

[0009] According to the present invention, a technology can be provided that controls the operation of a wastewater saponification device based on operating conditions such as a set timer, and controls the injection of chemicals, etc. based on the operating conditions and the remaining amount of chemicals, etc. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a configuration diagram of a wastewater treatment system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a diagram showing the configuration of the management device of the system. [Figure 3] Figure 3 is a diagram showing the configuration of the pharmaceutical injection device in this system. [Figure 4]Figure 4 is a diagram showing the configuration of the wastewater saponification device in the system. [Figure 5] FIG. 5 is a diagram showing the configuration of the integrated management device of the system. [Figure 6] FIG. 6 is a diagram showing the configuration of a terminal device in the system. [Figure 7] FIG. 7 is a flowchart showing the procedure for various controls performed by the system. [Figure 8] FIG. 8 is a flowchart showing the processing steps for integrated management of the system. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0012] FIG. 1 shows the configuration of a wastewater treatment system according to an embodiment of the present invention.

[0013] As shown in the figure, grease trap 100 is divided into a first tank, a second tank, and a third tank by partitions 100A and 110B. Oily wastewater generated in the kitchen flows into the first tank via drain pipe 100C. In this first tank, wastewater is collected in basket 100E, and residue settles to the bottom of the first tank. Chemical dosing device 2 and wastewater saponification device 3 are disposed in the second tank. Wastewater introduced into the second tank is saponified during the agitation process by chemicals injected into wastewater saponification device 3 by chemical dosing device 2. The saponified wastewater is introduced into the third tank and discharged to the sewer and septic tank via trap 100D.

[0014] Management device 1 is connected to and can communicate with chemical injection device 2 and wastewater saponification device 3, and controls the operation of chemical injection device 2 and wastewater saponification device 3 based on operating conditions such as set timer information. Management device 1 also manages the chemical usage history of chemical injection device 2 and the operation history of wastewater saponification device 3, and periodically transmits history information and the like to integrated management device 4.

[0015] The integrated management device 4 is for integrated management of management devices installed in the grease traps of each kitchen of a plurality of restaurants, etc., and can send drive commands to the management devices, calculate usage fees, and generate invoices. It also integrates and manages the chemical usage history and operation history from the history management section of the management device.

[0016] In addition, a user's terminal device 5 is also connected to a communication network 6 such as the Internet, and the terminal device 5 can be used to remotely check information such as operating conditions and operating history sent from the integrated management device 4. The user here refers to, but is not limited to, the owner or manager of a restaurant or the like.

[0017] FIG. 2 shows the configuration of the management device for the wastewater treatment system, and will be described.

[0018] As shown in the same figure, the management device 1 has a control unit 11, a communication unit 12, an operation input unit 13, a display unit 14, and a memory unit 15, which are connected to each other so as to be able to communicate with each other via a system bus.

[0019] The communication unit 12 is realized by, for example, an NIC, and is connected to a communication network 6 such as the Internet via a wired or wireless connection, and is a communication interface for communicating with the integrated management device 4, etc. The communication unit 12 also communicates with the chemical injection device 2 and the wastewater saponification device 3. The operation input unit 13 is composed of operation buttons, etc. The display unit 14 is composed of an LCD panel, etc., and displays an operating condition setting screen, a history confirmation screen, etc. The memory unit 13 is realized by, for example, a semiconductor memory element such as RAM or flash memory, an HDD, or an optical disk device, etc., and pre-stores programs to be executed by the control unit 11. The memory unit 13 stores operating conditions, history information (operating history, chemical history), etc.

[0020] More specifically, the operating conditions stored include set timer information (operation start time, operation end time, required operation time, etc.), and the history information stored includes historical information related to chemical injection (chemical injection amount, remaining amount, injection time, etc.) and operation history information of the wastewater saponification device 3 (operation start time, operation end time, required operation time, etc.).

[0021] The control unit 11 is realized by a CPU, an MPU, etc. The control unit 11 is configured by an integrated circuit such as an ASIC, an FPGA, etc. The control unit 11 reads and executes programs stored in the storage unit 15, thereby functioning as a communication control unit 11a, a drive condition management unit 11b, a drive control unit 11c, a history management unit 11d, etc.

[0022] In this configuration, communication control unit 11a functions as a transmitter that transmits drive commands and the like to chemical injection device 2 and wastewater saponification device 3, and as a receiver that receives chemical weight information and the like from chemical injection device 2. Drive condition management unit 11b stores and manages drive conditions set by operating operation input unit 13 on the display panel displayed on display unit 14 in memory unit 15. Here, the drive conditions include the drive conditions of chemical injection device 2 (drive start time, drive stop time, required time, chemical injection amount, etc.) and the drive conditions of wastewater saponification device 3 (drive start time, drive stop time, required time, drive interval, etc.).

[0023] More specifically, drive control unit 11c functions as a chemical control unit 11c-1 and a wastewater saponification control unit 11c-2. Chemical control unit 11c-1 references the drive conditions of chemical injection device 2 stored in memory unit 15, and transmits drive commands and the like to chemical injection device 2 to control its drive. Wastewater saponification control unit 11c-2 references the drive conditions of wastewater saponification device 3 stored in memory unit 15, and transmits drive commands and the like to wastewater saponification device 3 to control its drive.

[0024] More specifically, history management unit 11d functions as operation history management unit 11d-1 and drug history management unit 11d-2. Operation history management unit 11d-1 stores and manages operation history information of drug injection device 2 and wastewater saponification device 3 in memory unit 15, and periodically transmits this operation history information to integrated management device 4 under the control of communication control unit 11a. Drug history management unit 11d-2 stores and manages drug history information, such as the remaining amount of drug in drug injection device 2 and the amount used, in memory unit 15, and periodically transmits this drug history information to integrated management unit 4 under the control of communication control unit 11a.

[0025] FIG. 3 shows the configuration of the chemical injection device in the wastewater treatment system, and will be described below.

[0026] As shown in the figure, chemical injection device 2 includes chemical tank 21, chemical pump 22, and chemical weight measuring unit 23. Chemical tank 21 contains a chemical for saponifying wastewater. Chemical pump 22 is driven based on a drive command from management device 1, and sends the chemical from chemical tank 21 to wastewater saponification device 3. Chemical weight measuring device 23 periodically (for example, each time it is driven) measures the weight of chemical tank 21 and notifies weight information (remaining amount) to management device 1.

[0027] FIG. 4 shows the configuration of the wastewater saponification device in the wastewater treatment system, and will be described.

[0028] As shown in the figure, the wastewater saponification apparatus 3 includes a motor 31, a distribution reduction gear 32, a saponification chamber 33, an agitator blade 34, an ultrasonic generator 35, and a saponification chamber rotator 36. The motor 31 is driven based on a drive command from the management device 1, and its driving force is transmitted via the distribution reduction gear 32 to the agitator blade 34 and the saponification chamber rotator 36, rotating them. The saponification chamber 33 is equipped with the agitator blade 34. The chemical agent delivered from the chemical injection device 2 is agitated with the wastewater by the drive of the agitator blade 34, and together with the action of the ultrasonic generator 35, saponification proceeds. That is, ultrasonic waves projected from the ultrasonic generator 35 onto the wastewater disperse oil particles in the wastewater, increasing their surface area, accelerating the reaction rate and shortening the time required for saponification. The saponified wastewater is then delivered to the third tank of the grease trap 100.

[0029] FIG. 5 shows the configuration of an integrated management device that can be added to a drainage system, and will be described.

[0030] As shown in the figure, the central management device 4 has a control unit 41, a communication unit 42, and a storage unit 43, which are communicably connected via a system bus.

[0031] The communication unit 42 is realized by, for example, an NIC or the like, and is a communication interface connected to the communication network 6 by wire or wirelessly to communicate with the management device 1, etc. The storage unit 13 is realized by, for example, a semiconductor memory element such as RAM or flash memory, an HDD, or an optical disk device, etc., and stores in advance the programs to be executed by the control unit 41. The storage unit 13 has a user information storage unit 44, a history information storage unit 45, and a payment information storage unit 46.

[0032] More specifically, the user information storage unit 44 stores the user's name, location, email address of the person in charge, management ID, payment information, etc., linked to the user ID. Here, the "user" refers to a restaurant or other establishment that has installed the system in a grease trap. The user information storage unit 44 also stores set timer information (operation start time, operation end time, required operation time, etc.) as a driving condition.

[0033] The history information storage unit 45 stores, linked to the management ID, user IDs, history information related to chemical injection (chemical injection amount, remaining amount, injection time, etc.), and operation history information of the wastewater saponification device 3 (operation start time, operation end time, operation required time, etc.). Furthermore, the payment information storage unit 46 stores, linked to the payment ID, user IDs and payment history information (including electronic data of invoices).

[0034] The control unit 11 is realized by a CPU, an MPU, etc. The control unit 11 is composed of an integrated circuit such as an ASIC, an FPGA, etc. The control unit 11 reads and executes programs stored in the storage unit 15, thereby functioning as a communication control unit 11a, an integrated management unit 41b, a drive command unit 41c, a usage fee calculation unit 41d, a bill generation unit 41e, a settlement unit 41f, etc.

[0035] In this configuration, the communication control unit 11a functions as a transmitter that transmits drive commands to the management device 1 and a receiver that receives history information and the like from the management device 1. The integrated management unit 41b comprehensively manages the drive conditions, drive history information, payment information, and the like of the management devices installed in each restaurant, etc. The drive command unit 41c comprehensively controls the drive of multiple management devices 1, for example, by remotely transmitting drive commands for the chemical injection device 2 and the wastewater saponification device 3 to the management device 1 based on the drive conditions stored in the user information storage unit 44. The usage fee calculation unit 41d calculates the usage fee for each user based on the history information and the like. The invoice generation unit 41e generates an invoice based on the calculated usage fee. The settlement unit 41f then executes electronic settlement based on the payment information for each user stored in the user information storage unit 44 and stores the result in the settlement information storage unit 46.

[0036] FIG. 6 shows the configuration of a terminal device that can be added to the wastewater treatment system, and will be described.

[0037] As shown in the figure, the terminal device 5 has a control unit 51, a communication unit 52, an operation input unit 53, a display unit 54, and a storage unit 55. The units 51 to 55 are communicatively connected via a bus. The communication unit 52 is realized, for example, by an NIC or the like, and is connected to a communication network 6 such as the Internet via a wired or wireless connection, and is a communication interface for communicating with the integrated management device 4 and the like. The operation input unit 53 accepts various operation inputs from a user. The display unit 54 is realized, for example, by a liquid crystal display or the like, and displays various information. The operation unit 53 and the display unit 54 may be integrated into a touch panel. The storage unit 55 is realized, for example, by a semiconductor memory element such as a RAM or flash memory, a HDD, an optical disk device, or the like, and stores the program executed by the control unit 51.

[0038] The control unit 51 is realized by a CPU, an MPU, etc., and may be configured by an integrated circuit such as an ASIC, an FPGA, etc. The control unit 51 reads out and executes programs stored in the storage unit 55, thereby functioning as a communication control unit 51a and a display control unit 51b.

[0039] The communication control unit 51a functions as a transmitting unit that transmits operating conditions and the like to the central managing device 4, and as a receiving unit that receives history information and the like from the central managing device 4. The display control unit 51b controls the display unit 54 to display the received history information and the like.

[0040] Hereinafter, the various control procedures of the wastewater treatment system will be described in detail with reference to the flowchart of FIG.

[0041] Operating condition management unit 11b manages operating conditions such as timer settings stored in memory unit 15 (S1). When the operating timing arrives (branching S2 to Yes), chemical control unit 11c-1 sends an operating command to chemical injection device 2 (S3), which operates based on the operating command and injects the chemical. Then, wastewater saponification control unit 11c-2 sends an operating command to wastewater saponification device 3 (S5), which operates based on the operating command and saponifies the wastewater (S6). In this way, history information management unit 11d updates the history information based on each operation (S7).

[0042] Next, the processing procedure for integrated management of the wastewater treatment system will be described in detail with reference to the flowchart of FIG.

[0043] In the management device 1, the input of operating conditions is accepted through the operation input unit 13 (S11), and the operating condition management unit 11b updates the management information in the storage unit 15. Then, at a predetermined timing (branching Yes in S13), the history management unit 11d reads out the management information (including the operating conditions and history information) from the storage unit 15 and, under the control of the communication control unit 11a, transmits the management information to the integrated management device 4 (S14). The integrated management device 4 receives this management information (S15), updates the information in the storage unit 43, and the integrated management unit 41b performs overall management of the management information (S15).

[0044] As described above, according to the embodiment of the present invention, it is possible to promote Dx management of grease traps. That is, it is possible to manage the need for replenishment of chemicals for saponification, operation history, etc., which is expected to facilitate operation.

[0045] Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to these and that various improvements and modifications can be made without departing from the spirit of the present invention.

[0046] For example, a management device for a wastewater treatment system installed in a grease trap in a kitchen or the like may be configured to transmit history information and the like to an integrated management device based on a predetermined schedule. [Explanation of symbols]

[0047] 1...management device, 2...chemical injection device, 3...wastewater saponification device, 4...integrated management device, 5...terminal device, 6...network, 11...control unit, 11a...communication control unit, 11b...drive condition management unit, 11c...drive control unit, 11c-1...chemical control unit, 11c-2...wastewater saponification control unit, 11d...history management unit, 11d-1...operation history management unit, 11d-2...chemical history management unit, 12...communication unit, 13...operation input unit, 14...display unit, 15...memory unit, 21...chemical tank, 22...chemical pump, 23...chemical weight Measuring unit, 31...motor, 32...distribution reduction gear, 33...saponification chamber, 34...stirring blade, 35...ultrasonic generator, 36...saponification chamber rotor, 41...control unit, 41a...communication control unit, 41b...integrated management unit, 41c...drive command unit, 41d...usage fee calculation unit, 41e...invoice generation unit, 41f...settlement unit, 42...communication unit, 43...memory unit, 44...user information memory unit, 45...history information memory unit, 46...payment information memory unit, 51...control unit, 51a...communication control unit, 51b...display control unit, 52...communication unit, 53...operation input unit, 54...display unit, 55...memory unit.

Claims

1. a drug injection device; a wastewater saponification device; A management device that manages the chemical injection device and the wastewater saponification device, The management device controls the operation of the wastewater saponification device and the chemical injection device based on the operation conditions. Wastewater treatment system.

2. The system further includes a history management unit that manages the chemical usage history of the chemical injection device and the operation history of the wastewater saponification device. The wastewater treatment system according to claim 1 .

3. an integrated management device that sends a drive command to the management device, calculates a usage fee, and generates an invoice; The history management unit transmits the drug use history and the operation history to the integrated management device at a predetermined timing, and the management device integrates and manages the received drug use history and the operation history. The wastewater treatment system according to claim 2 .

4. The wastewater saponification device is equipped with an ultrasonic generator, and by projecting ultrasonic waves from the ultrasonic generator into the wastewater, oil particles in the wastewater are dispersed and the reaction rate with the chemicals is increased. The wastewater treatment system according to claim 1 .

5. The driving conditions include a driving time based on a timer setting. The wastewater treatment system according to any one of claims 1 to 4.

6. The management device controls the operation of the wastewater saponification device and the chemical injection device based on the operation conditions; a history management unit managing the chemical use history of the chemical injection device and the operation history of the wastewater saponification device, and transmitting the chemical use history and the operation history to an integrated management device at a predetermined timing; The integrated management unit manages the received drug use history and the operation history in an integrated manner, and calculates a usage fee based on the drug use history and the operation history. A wastewater treatment method comprising the steps of:

7. The wastewater saponification device is equipped with an ultrasonic generator, and by projecting ultrasonic waves from the ultrasonic generator into the wastewater, oil particles in the wastewater are dispersed and the reaction rate with the chemicals is increased. The wastewater treatment method according to claim 6.

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