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 such as a grease trap.

Background Art

[0002] Conventionally, wastewater from kitchens in restaurants and the like has been stored in a grease trap, washed, and then discharged into a public sewer. Regarding such washing treatment of the grease trap, various techniques have been proposed.

[0003] Here, in Patent Document 1, there is a management system having a store-side terminal provided in a store and a management device connected to the store-side terminal via a network. The store-side terminal includes a turbidity information transmission unit that transmits turbidity information indicating the degree of dirt on the grease trap provided in the store to the management device. The management device includes an acquisition unit that acquires turbidity information from the store-side terminal, a transition acquisition unit that acquires transition information indicating the transition of dirt on the grease trap for each store based on the acquired turbidity information, and an output control unit that outputs cleaning information regarding cleaning of the grease trap based on the transition information. A management device is disclosed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in Patent Document 1, it is not disclosed that the management device drives and controls a drainage saponification device based on drive conditions such as a set timer, or controls injection of a chemical based on the remaining amount of the chemical.

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

[0007] To solve the above problems, a wastewater treatment system according to one aspect of the present invention comprises: a chemical injection device; a wastewater saponification device; a management device that manages the driving conditions of the chemical injection device and the wastewater saponification device, drives and controls the wastewater saponification device and the chemical injection device based on the driving conditions, and manages chemical history information of the chemical injection device and the operation history information of the wastewater saponification device; and an integrated management device that transmits drive commands to the management device and integrates the chemical history information and the operation history information. The chemical injection device includes a chemical weight measuring device that periodically measures the weight of the chemical tank and notifies the management device of the weight information as part of the chemical history information. The wastewater saponification device includes an ultrasonic generator, which disperses oil particles in the wastewater and increases the reaction rate with the chemical. The management device transmits the chemical history information and the operation history information to the integrated management device at a predetermined timing, and the integrated management device receives the information. Before The system integrates and manages the recorded drug history information and the aforementioned operational history information, calculates the usage fee based on the drug history information and the aforementioned operational history information, and generates an invoice.

[0008] Another aspect of the present invention relates to a wastewater treatment method in which a control device is used. ,medicine Drug injection device and and dischargeThe integrated management device manages the driving conditions of the water saponification apparatus, controls the driving of the wastewater saponification apparatus and the chemical injection apparatus based on the driving conditions, manages the chemical history information of the chemical injection apparatus and the operation history information of the wastewater saponification apparatus, transmits drive commands to the management device and integrates the chemical history information and the operation history information, in the chemical injection apparatus a chemical weight measuring device periodically measures the weight of the chemical tank and notifies the management device of the weight information as part of the chemical history information, in the wastewater saponification apparatus an ultrasonic generator disperses oil particles in the wastewater to increase the reaction rate with the chemical, the management device transmits the chemical history information and the operation history information to the integrated management device at predetermined timings, and the integrated management device receives them. Before The system integrates and manages the recorded drug history information and the aforementioned operational history information, calculates the usage fee based on the drug history information and the aforementioned operational history information, and generates an invoice. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a technology that controls the operation of a wastewater saponification device based on set operating conditions such as a timer, and controls the injection of chemicals based on the operating conditions and the remaining amount of chemicals. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a diagram showing the configuration of a wastewater treatment system according to an embodiment of the present invention. [Figure 2] Figure 2 is a diagram showing the configuration of the management device for the system. [Figure 3] Figure 3 is a diagram showing the configuration of the drug infusion device of the same system. [Figure 4] Figure 4 is a diagram showing the configuration of the wastewater saponification apparatus in the same system. [Figure 5] Figure 5 is a diagram showing the configuration of the integrated management device for the system. [Figure 6] Figure 6 is a diagram showing the configuration of the terminal equipment of the system. [Figure 7] Figure 7 is a flowchart showing the processing procedures for various controls of the system. [Figure 8] Figure 8 is a flowchart showing the processing procedure for integrated management of the system. [Modes for carrying out the invention]

[0011] Embodiments of the present invention will be described below with reference to the drawings.

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

[0013] As shown in the figure, the grease trap 100 is divided into a first tank, a second tank, and a third tank by partitions 100A and 110B. Wastewater containing oil generated in the kitchen flows into the first tank via the drain pipe 100C. In this first tank, wastewater debris is collected by a basket 100E, and the residue settles at the bottom of the first tank. The second tank contains a chemical injection device 2 and a wastewater saponification device 3. The wastewater led to the second tank is saponified in the process of agitation by chemicals injected from the chemical injection device 2 into the wastewater saponification device 3. The saponified wastewater is led to the third tank and discharged to the sewer or septic tank via a trap 100D.

[0014] The control device 1 is connected to the chemical injection device 2 and the wastewater saponification device 3 via communication, and controls the operation of the chemical injection device 2 and the wastewater saponification device 3 based on set timer information and other driving conditions. The control device 1 also manages the chemical usage history of the chemical injection device 2 and the operating history of the wastewater saponification device 3, and periodically transmits this history information to the integrated control device 4.

[0015] The integrated management device 4 centrally manages management devices installed in the grease traps of each kitchen in multiple restaurants and other establishments. It can transmit drive commands to the management devices, calculate usage fees, and generate invoices. It also centrally manages the chemical usage history and operation history from the history management unit of the management devices.

[0016] In addition, a user terminal device 5 is also connected to a communication network 6 such as the Internet, and the user can remotely check information such as driving conditions and driving history sent from the integrated management device 4 using the terminal device 5. Here, the user refers to, but is not limited to, the owner or administrator of a restaurant or the like.

[0017] FIG. 2 shows and explains the configuration of the management device of the wastewater treatment system.

[0018] As shown in the figure, the management device 1 includes a control unit 11, a communication unit 12, an operation input unit 13, a display unit 14, and a storage unit 15, which are communicably connected via a system bus.

[0019] The communication unit 12 is realized by, for example, a NIC or the like, and is connected to a communication network 6 such as the Internet by wire or wirelessly, and is a communication interface for communicating with the integrated management device 4 or the like. 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 and the like. The display unit 14 is composed of a liquid crystal panel or the like, and displays a driving condition setting screen, a history confirmation screen, and the like. The storage unit 13 is realized by, for example, a semiconductor memory element such as a RAM or a flash memory, an HDD, or an optical disk device, and stores a program executed by the control unit 11 in advance. The storage unit 13 stores driving conditions and history information (operation history, chemical history), etc.

[0020] More specifically, the set timer information (operation start time, operation end time, operation required time, etc.) is stored as the driving condition. As the history information, 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.) are stored.

[0021] The control unit 11 is implemented using a CPU or MPU, etc. The control unit 11 is composed of an integrated circuit such as an ASIC or FPGA. The control unit 11 functions as a communication control unit 11a, a drive condition management unit 11b, a drive control unit 11c, a history management unit 11d, etc., by reading and executing programs stored in the memory unit 15.

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

[0023] The drive control unit 11c functions, more specifically, as a chemical control unit 11c-1 and a wastewater saponification control unit 11c-2. The chemical control unit 11c-1 refers to the drive conditions of the chemical injection device 2 stored in the memory unit 15 and transmits drive commands and other information to the chemical injection device 2 to control its operation. The wastewater saponification control unit 11c-2 refers to the drive conditions of the wastewater saponification device 3 stored in the memory unit 15 and transmits drive commands and other information to the wastewater saponification device 3 to control its operation.

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

[0025] Figure 3 shows and explains the configuration of the chemical injection device in the wastewater treatment system.

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

[0027] Figure 4 shows and explains the configuration of the wastewater saponification unit in the wastewater treatment system.

[0028] As shown in the figure, the wastewater saponification device 3 comprises a motor 31, a distribution reduction gear 32, a saponification chamber 33, a stirring blade 34, an ultrasonic generator 35, and a saponification chamber rotator 36. The motor 31 is driven based on a drive command from the control device 1, and its driving force is transmitted via the distribution reduction gear 32 to the stirring blade 34 and the saponification chamber rotator 36, which are then rotated. The saponification chamber 33 is equipped with a stirring blade 34, and the chemical sent from the chemical injection device 2 is mixed with the wastewater by the drive of this stirring blade 34, and saponification is promoted in conjunction with the action of the ultrasonic generator 35. That is, when ultrasonic waves are projected onto the wastewater from the ultrasonic generator 35, the dispersion of oil particles in the wastewater is promoted and the surface area is increased, so the reaction rate is increased and the time required for saponification is shortened. The saponified wastewater is then sent to the third tank of the grease trap 100.

[0029] Figure 5 illustrates and explains the configuration of an integrated management device that can be added to a drainage system.

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

[0031] The communication unit 42 is implemented by, for example, a NIC, and is a communication interface that connects to the communication network 6 by wire or wireless connection and communicates with the management device 1, etc. The storage unit 13 is implemented by, for example, a semiconductor memory element such as RAM or flash memory, an HDD, or an optical disc drive, and stores in advance the program 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, address, contact person's email address, management ID, payment information, etc., linked to the user ID. Here, "user" refers to restaurants, etc., where this system is installed in the grease trap. The user information storage unit 44 also stores the set timer information (start time, end time, duration of operation, etc.) as operating conditions.

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

[0034] The control unit 11 is implemented using a CPU or MPU, etc. The control unit 11 is composed of an integrated circuit such as an ASIC or FPGA. By reading and executing programs stored in the memory unit 15, the control unit 11 functions as a communication control unit 11a, an integrated management unit 41b, a drive command unit 41c, a usage fee calculation unit 41d, an invoice generation unit 41e, and a settlement unit 41f, etc.

[0035] In this configuration, the communication control unit 11a functions as a transmitting unit that sends drive commands to the management device 1, and a receiving unit that receives history information and the like from the management device 1. The integrated management unit 41b centrally manages the drive conditions, drive history information, and payment information of the management devices located in each restaurant, etc. The drive command unit 41c centrally controls the operation of multiple management devices 1, such as sending drive commands for the drug injection device 2 and the wastewater saponification device 3 to the management device 1 remotely, 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 history information and the like. The invoice generation unit 41e generates an invoice based on the calculated usage fee. Then, the payment unit 41f executes electronic payment based on the payment information of each user stored in the user information storage unit 44, and stores the result in the payment information storage unit 46.

[0036] Figure 6 shows and explains the configuration of terminal devices that can be added to the wastewater treatment system.

[0037] As shown in the figure, the terminal device 5 includes a control unit 51, a communication unit 52, an operation input unit 53, a display unit 54, and a storage unit 55. Each unit 51 to 55 is connected via a bus for flexible communication. The communication unit 52 is implemented by, for example, a NIC, and is a communication interface that is connected to a communication network 6 such as the Internet by wired or wireless connection and communicates with the integrated management device 4, etc. The operation input unit 53 accepts various operation inputs from the user. The display unit 54 is implemented by, for example, a liquid crystal display, and displays various information. The operation unit 53 and the display unit 54 may be configured as a single touch panel. The storage unit 55 is implemented by, for example, a semiconductor memory element such as RAM or flash memory, an HDD, an optical disc drive, etc., and stores programs executed by the control unit 51.

[0038] The control unit 51 is implemented using a CPU or MPU, and may be composed of an integrated circuit such as an ASIC or FPGA. The control unit 51 functions as a communication control unit 51a and a display control unit 51b by reading and executing a program stored in the memory unit 55.

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

[0040] The following describes in detail the various control procedures of the wastewater treatment system, referring to the flowchart in Figure 7.

[0041] The drive condition management unit 11b manages drive conditions such as timer settings stored in the memory unit 15 (S1). When it is time to drive (branching to Yes in S2), the drug control unit 11c-1 sends a drive command to the drug injection device 2 (S3), and the drug injection device 2 drives based on the drive command and injects the drug. Then, the wastewater saponification control unit 11c-2 sends a drive command to the wastewater saponification device 3 (S5), and the wastewater saponification device 3 drives based on the drive command and performs wastewater saponification (S6). In this way, the history information management unit 11d updates the history information based on each drive (S7).

[0042] Next, referring to the flowchart in Figure 8, the processing procedure for integrated management of the wastewater treatment system will be explained in detail.

[0043] In the management device 1, input of drive conditions is received through operation of the operation input unit 13 (S11), and the drive condition management unit 11b updates the management information in the storage unit 15. Then, at a predetermined timing (branching to Yes in S13), the history management unit 11d reads the management information (including drive 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 manages the management information comprehensively (S15).

[0044] As described above, according to the embodiments of the present invention, it is possible to promote the digitalization of grease trap management. Specifically, it becomes possible to manage the need for replenishment of saponification agents and the operation history, so smoother operation can be expected.

[0045] Although embodiments of the present invention have been described above, it goes without saying that the present invention is not limited thereto and various improvements and modifications are possible without departing from its spirit.

[0046] For example, a management device for a wastewater treatment system installed in a grease trap in a kitchen may transmit historical information and other data 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...Storage unit, 21...Chemical tank, 22...Chemical pump, 23...Chemical weight 31...Measuring unit, 32...Motor, 33...Distribution reduction gear, 34...Saponification chamber, 35...Agitation blade, 36...Saponification chamber rotator, 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...Storage unit, 44...User information storage unit, 45...History information storage unit, 46...Settlement information storage unit, 51...Control unit, 51a...Communication control unit, 51b...Display control unit, 52...Communication unit, 53...Operation input unit, 54...Display unit, 55...Storage unit.

Claims

1. Drug infusion device, Wastewater saponification device, A management device manages the driving conditions of the chemical injection device and the wastewater saponification device, controls the operation of the wastewater saponification device and the chemical injection device based on the driving conditions, and manages the chemical history information of the chemical injection device and the operation history information of the wastewater saponification device. The system includes an integrated management device that transmits drive commands to the management device and integrates and manages the drug history information and the operation history information, The drug injection device includes a drug weight measuring device that periodically measures the weight of the drug tank and notifies the management device of the weight information as part of the drug history information. The wastewater saponification apparatus is equipped with an ultrasonic generator, which disperses oil particles in the wastewater and increases the reaction rate with the chemical agent. The management device transmits the drug history information and the operation history information to the integrated management device at a predetermined timing. The integrated management device then integrates and manages the received drug history information and operation history information, calculates the usage fee based on the drug history information and operation history information, and generates an invoice. Wastewater treatment system.

2. The control device manages the driving conditions of the chemical injection device and the wastewater saponification device, controls the operation of the wastewater saponification device and the chemical injection device based on the driving conditions, and manages the chemical history information of the chemical injection device and the operation history information of the wastewater saponification device. The integrated management device transmits drive commands to the management device and integrates and manages the drug history information and the operation history information. In the aforementioned drug injection device, the drug weight measuring device periodically measures the weight of the drug tank and notifies the management device of the weight information as part of the drug history information. In the aforementioned wastewater saponification apparatus, an ultrasonic generator is used to disperse oil particles in the wastewater and increase the reaction rate with the chemicals. The management device transmits the drug history information and the operation history information to the integrated management device at a predetermined timing. The integrated management device then integrates and manages the received drug history information and operation history information, calculates the usage fee based on the drug history information and operation history information, and generates an invoice. Wastewater treatment methods.

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