Reducing device for clean wastewater and concentrated water

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a reduction device for clean wastewater and concentrated water. The reduction device for the clean wastewater concentrated water comprises a clean wastewater concentrated water tank, a concentrated water pump, a buffer water tank, a mixed wastewater pump and reverse osmosis water purification equipment, and the concentrated water pump and the mixed wastewater pump are started in the clean wastewater concentrated water reduction treatment time in the work cycle of the reduction device. Concentrated water stored in the clean wastewater concentrated water tank is conveyed into the buffer water tank, concentrated water in the buffer water tank is conveyed into the reverse osmosis water purification equipment to be treated, first-stage RO concentrated water flows back, second-stage RO concentrated water and multi-stage RO concentrated water are produced, the clean wastewater concentrated water is subjected to reduction treatment, and first-stage RO concentrated water and pure water are produced in the clean wastewater concentrated water collection time. And the clean wastewater concentrated water can be subjected to reduction treatment, so that the technical problem that a device for carrying out reduction treatment on the clean wastewater concentrated water before the clean wastewater concentrated water enters a landfill leachate treatment system is lacked in the prior art is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of wastewater treatment, and in particular relates to a device for reducing the volume of clean wastewater and concentrated water. Background Art

[0002] Currently, waste incineration plants use a clean wastewater system that includes a multi-media filter, an ultrafiltration filter, and a reverse osmosis filter connected in sequence to treat circulating water. However, the reverse osmosis filter continuously produces concentrated water during operation, and the amount of concentrated water accounts for approximately 25% of the water intake of the clean wastewater system. That is, in actual loaded production, based on an average daily water intake of 1,600 tons, approximately 1,120 tons of pure water is produced, and the average daily concentrated water production is approximately 480 tons.

[0003] Currently, a landfill leachate treatment system connected to a clean wastewater system can be used to treat concentrated water generated by the clean wastewater system. For example, patent CN117285201A discloses a device and method for treating concentrated water in a clean wastewater system in conjunction with a leachate treatment system, which discloses the use of a water pump to extract the clean wastewater concentrate into the leachate treatment system for treatment. However, if the clean wastewater concentrate is directly introduced into the leachate treatment system for treatment, it will not only occupy the storage capacity of each functional pool, but also increase the power consumption of the equipment during the production process, resulting in low economic benefits. Therefore, it is necessary to reduce the amount of clean wastewater concentrate before it enters the landfill leachate treatment system. Utility Model Content

[0004] In view of this, the present application provides a clean wastewater concentrate reduction device to solve the technical problem in the prior art of lacking a device for reducing the clean wastewater concentrate before entering the landfill leachate treatment system.

[0005] In a first aspect, the present application provides a clean wastewater concentrate reduction device, comprising: a clean wastewater concentrate tank, a concentrate pump, a buffer water tank, a mixed wastewater pipeline, a mixed wastewater pump, a reverse osmosis water purification device, a concentrate pipeline, a concentrate return pipeline, a concentrate collection pipeline, and a concentrate collection tank;

[0006] The water inlet of the concentrated water pump is connected to the clean wastewater concentrated water tank, and the water outlet of the concentrated water pump is connected to the water inlet of the buffer water tank; a clean wastewater concentrated water conductivity meter is installed in the clean wastewater concentrated water tank;

[0007] The water inlet of the mixed wastewater pipeline is connected to the water outlet of the buffer water tank, and the water outlet of the mixed wastewater pipeline is connected to the water inlet of the mixed wastewater pump, and a mixed wastewater valve is provided in the mixed wastewater pipeline;

[0008] The water outlet of the mixed wastewater pump is connected to the water inlet of the reverse osmosis water purification equipment;

[0009] The concentrated water outlet of the reverse osmosis water purification device is connected to the water inlet of the concentrated water pipeline, the concentrated water return outlet of the concentrated water pipeline is connected to the water inlet of the concentrated water return pipeline, the water outlet of the concentrated water return pipeline is connected to the water inlet of the buffer water tank, and a concentrated water return valve is provided in the concentrated water return pipeline;

[0010] The concentrated water collection outlet of the concentrated water pipeline is connected to the water inlet of the concentrated water collection pipeline, the water outlet of the concentrated water collection pipeline is connected to the concentrated water collection pool, and a concentrated water collection valve is provided in the concentrated water collection pipeline.

[0011] Preferably, a reflux flow meter is provided in the concentrated water reflux pipeline;

[0012] The concentrated water pump is selected from a variable frequency water pump.

[0013] Preferably, a mixed concentrated water conductivity meter is installed in the buffer water tank.

[0014] Preferably, a stirring device is provided in the buffer water tank.

[0015] Preferably, a concentrated water conductivity meter is installed in the concentrated water pipeline.

[0016] Preferably, the clean wastewater concentrated water conductivity meter is detachably installed in the clean wastewater concentrated water tank;

[0017] The mixed concentrated water conductivity meter is detachably installed in the buffer water tank;

[0018] The concentrated water conductivity meter is detachably installed in the concentrated water pipeline.

[0019] Preferably, the clean wastewater concentrated water reduction device also includes: a pure water pipeline and a pure water collection pool, the pure water outlet of the reverse osmosis water purification equipment is connected to the water inlet of the pure water pipeline, and the outlet of the pure water pipeline is connected to the pure water collection pool.

[0020] Preferably, a pure water flow meter is provided in the pure water pipeline.

[0021] Preferably, a concentrated water collection flowmeter is provided in the concentrated water collection pipeline.

[0022] Preferably, a pure water flow meter is provided in the pure water pipeline, and a concentrated water collection flow meter is provided in the concentrated water collection pipeline.

[0023] In summary, the present application provides a device for reducing the amount of clean wastewater and concentrated water. The device for reducing the amount of clean wastewater and concentrated water provided by the present application includes: a clean wastewater concentrated water tank, a concentrated water pump, a buffer water tank, a mixed wastewater pipeline, a mixed wastewater pump, a reverse osmosis water purification device, a concentrated water pipeline, a concentrated water return pipeline, a concentrated water collection pipeline and a concentrated water collection pool; when the reduction device provided by the present application performs the reduction work on the clean wastewater and concentrated water, the staff first checks the conductivity value of the clean wastewater and concentrated water detected by the clean wastewater and concentrated water conductivity meter, and then determines the clean wastewater and concentrated water reduction treatment time when the concentrated water return valve in the concentrated water return pipeline is opened and the concentrated water collection valve in the concentrated water collection pipeline is closed, and the concentrated water return pipeline is closed. The clean wastewater concentrated water collection time when the concentrated water reflux valve in the pipeline is closed and the concentrated water collection valve in the concentrated water collection pipeline is opened, the clean wastewater concentrated water reduction treatment time and the clean wastewater concentrated water collection time constitute the working cycle of the reduction device provided in this application; during the clean wastewater concentrated water reduction treatment time in the reduction device working cycle, the staff opens the concentrated water reflux valve, closes the concentrated water collection valve, opens the mixed wastewater valve, and starts the concentrated water pump and the mixed wastewater pump, and uses the concentrated water pump whose water inlet and water outlet are connected to the clean wastewater concentrated water tank and the buffer water tank respectively, to transport the concentrated water stored in the clean wastewater concentrated water tank into the buffer water tank, and then uses the water inlet and water outlet to connect to the buffer water tank respectively. The mixed wastewater pump of the tank and reverse osmosis water purification equipment transports the concentrated water in the buffer water tank into the reverse osmosis water purification equipment for treatment, and produces concentrated water and pure water. The produced first-level RO concentrated water can be returned to the buffer water tank through the concentrated water return outlet of the concentrated water pipe, and the concentrated water is returned to the buffer water tank by the concentrated water return pipe and mixed with the clean wastewater concentrated water transported by the concentrated water pump in the buffer water tank. The mixed wastewater is then transported into the reverse osmosis water purification equipment for further treatment to produce secondary RO concentrated water and pure water. During the clean wastewater concentrated water reduction treatment time, the clean wastewater concentrated water can be continuously reduced to produce multi-stage RO concentrated water. The generated concentrated water cannot flow into the concentrated water collection pool through the concentrated water collection pipe; and in the clean wastewater During the brine collection time, the staff closes the brine reflux valve, opens the brine collection valve, opens the mixed wastewater valve, and starts the brine pump and the mixed wastewater pump, and directly flows the first-level RO brine produced by the reverse osmosis water purification equipment into the brine collection pool through the brine collection pipe, without producing secondary or multi-stage RO brine. Compared with the brine stored in the original clean wastewater brine tank, the amount of brine collected in the brine collection pool will be greatly reduced after being treated by the clean wastewater brine reduction device provided by this application, thereby realizing the reduction treatment of clean wastewater brine, and solving the technical problem in the prior art of lacking a brine reduction treatment device for clean wastewater brine before entering the landfill leachate treatment system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a schematic diagram of the structure of a clean wastewater concentrate reduction device provided in this application;

[0026] Figure 1 The accompanying drawings are labeled: 1. Clean wastewater concentrate tank, 2. Buffer water tank, 3. Reverse osmosis water purification equipment, 4. Concentrate collection tank, 5. Pure water collection tank, 6. Clean wastewater concentrate conductivity meter, 7. Concentrate pump, 8. Stirring device, 9. Mixed concentrate conductivity meter, 10. Mixed wastewater valve, 11. Mixed wastewater pump, 12. Concentrate conductivity meter, 13. Concentrate reflux valve, 14. Reflux flowmeter, 15. Concentrate collection valve, 16. Concentrate collection flowmeter, 17. Pure water flowmeter. DETAILED DESCRIPTION

[0027] The present application provides a device for reducing the volume of clean wastewater concentrate, which is used to solve the technical problem in the prior art of lacking a device for reducing the volume of clean wastewater concentrate before entering a landfill leachate treatment system.

[0028] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0029] Example 1

[0030] Example 1 of the present application provides a clean wastewater concentrate reduction device, the structure of the reduction device is as follows Figure 1 As shown, it includes: a clean wastewater concentrate tank, a concentrate pump, a buffer water tank, a mixed wastewater pipeline, a mixed wastewater pump, a reverse osmosis water purification equipment, a concentrate pipeline, a concentrate return pipeline, a concentrate collection pipeline and a concentrate collection pool; and a clean wastewater concentrate conductivity meter is installed in the clean wastewater concentrate tank, a mixed wastewater valve is set in the mixed wastewater pipeline, a concentrate return valve is set in the concentrate return pipeline, and a concentrate collection valve is set in the concentrate collection pipeline.

[0031] The connection relationship of each component in the reduction device is as follows: the water inlet of the concentrate pump is connected to the clean wastewater concentrate tank, and the water outlet of the concentrate pump is connected to the water inlet of the buffer water tank; the water inlet of the mixed wastewater pipeline is connected to the water outlet of the buffer water tank, and the water outlet of the mixed wastewater pipeline is connected to the water inlet of the mixed wastewater pump; the water outlet of the mixed wastewater pump is connected to the water inlet of the reverse osmosis water purification equipment; the concentrate water outlet of the reverse osmosis water purification equipment is connected to the water inlet of the concentrate pipe, the concentrate water return outlet of the concentrate pipe is connected to the water inlet of the concentrate water return pipe, the water outlet of the concentrate water return pipe is connected to the water inlet of the buffer water tank, and a concentrate water return valve is provided in the concentrate water return pipe; the concentrate water collection outlet of the concentrate pipe is connected to the water inlet of the concentrate water collection pipe, the water outlet of the concentrate water collection pipe is connected to the concentrate water collection pool, and a concentrate water collection valve is provided in the concentrate water collection pipe.

[0032] When the clean wastewater concentrate reduction device provided in Example 1 of the present application is used, the RO membrane used in the reverse osmosis water purification equipment is a seawater desalination membrane SW30 HRLE-370 / 34i, and the recovery rate is 75%, that is, the pure water volume / water intake volume is 75%; based on the current actual load production process and the average daily water intake of 1,600 tons, the amount of clean wastewater concentrate generated is 480 tons, and the clean wastewater concentrate is stored in a clean wastewater concentrate tank. The conductivity detected by the clean wastewater concentrate conductivity meter is 5,000 us / cm, so the staff determined that the working cycle of the reduction device is 4 days, the first three days are the clean wastewater concentrate reduction treatment time, and the fourth day is the clean wastewater concentrate collection time; during the first three days of clean wastewater concentrate reduction treatment time, the clean wastewater concentrate can also be continuously returned through the concentrate return pipe after reverse osmosis treatment. The clean wastewater concentrate flowing into the buffer water tank is mixed with the clean wastewater concentrate tank and then subjected to reverse osmosis treatment again to produce primary, secondary and multi-stage RO concentrates. The primary, secondary and multi-stage RO concentrates do not flow into the concentrate collection pool through the concentrate collection pipe. When it comes to the fourth day, which is the clean wastewater concentrate collection time, the primary RO concentrate produced after the clean wastewater concentrate is treated by reverse osmosis will flow directly into the concentrate collection pool through the concentrate collection pipe. The concentrate collected in the concentrate collection pool is 480 tons × 25%, which is about 120 tons. Compared with the concentrate stored in the clean wastewater concentrate tank, the amount of concentrate collected in the concentrate collection pool will be greatly reduced, thereby achieving the reduction treatment of clean wastewater concentrate.

[0033] At the same time, in another application of the clean wastewater concentrated water reduction device provided in Example 1 of the present application, the conductivity detected by the clean wastewater concentrated water conductivity meter is 10000us / cm, so the staff determined that the working cycle of the reduction device is 2 days, the first day is the clean wastewater concentrated water reduction treatment time, and the second day is the clean wastewater concentrated water collection time.

[0034] Example 2

[0035] Example 2 of the present application provides a device for reducing the amount of clean wastewater concentrate. The difference from Example 1 is that a reflux flow meter is provided in the concentrate return pipe, and a variable frequency water pump is selected as the concentrate pump.

[0036] Since the recovery rate of the reverse osmosis water purification equipment in the reduction device provided in this application is 75%, it is necessary to ensure that the ratio of the brine reflux volume monitored by the reflux flow meter and the clean wastewater brine volume transported by the brine pump is 1:3 in order to maintain the long-term stable operation of the reduction device. Therefore, this embodiment sets a reflux flow meter in the brine reflux pipe, and also selects a variable frequency water pump as the brine pump; so that the staff can adjust the flow parameter of the variable frequency water pump to three times the brine reflux flow rate according to the brine reflux flow rate monitored by the reflux flow meter.

[0037] Example 3

[0038] Example 3 of the present application provides a device for reducing the amount of clean wastewater concentrate, which differs from Example 1 in that a mixed concentrate conductivity meter is installed in the buffer water tank.

[0039] Since the greater the conductivity of the concentrated water treated by the reverse osmosis water purification equipment, the more salt there is in the concentrated water, and the easier it is to deposit on the reverse osmosis membrane surface in the reverse osmosis water purification equipment, the working pressure of the reverse osmosis water purification equipment needs to be increased to filter the concentrated water; therefore, in order to maintain the clean wastewater and concentrated water reduction device provided in the present application to effectively filter the concentrated water, this embodiment also installs a mixed concentrated water conductivity meter in the buffer water tank; so that the staff can adjust the working pressure parameters of the reverse osmosis water purification equipment according to the mixed concentrated water conductivity monitored by the mixed concentrated water conductivity meter, so as to ensure that the clean wastewater and concentrated water reduction device provided in the present application can effectively filter the concentrated water.

[0040] Example 4

[0041] Example 4 of the present application provides a device for reducing the volume of clean wastewater concentrate, which differs from Example 1 in that a stirring device and a stirring paddle are provided in the buffer water tank.

[0042] The staff starts the stirring device to mix the reflux concentrate and the clean wastewater concentrate in the buffer water tank evenly, making the mixed concentrate conductivity monitored by the mixed concentrate conductivity meter more accurate.

[0043] Example 5

[0044] Example 5 of the present application provides a device for reducing the amount of clean wastewater concentrate, which differs from Example 1 in that a concentrate conductivity meter is installed in the concentrate pipeline.

[0045] In this embodiment, a brine conductivity meter is also installed in the brine pipeline. Workers can adjust the operating pressure parameters of the reverse osmosis water purification equipment based on the brine conductivity monitored by the brine conductivity meter. When the conductivity is too high, greater than or equal to 50,000 μs / cm, exceeding the maximum operating pressure load of the reverse osmosis water purification equipment, it may damage the RO membrane seawater desalination membrane SW30 HRLE-370 / 34i. The clean wastewater brine reduction device must be immediately shut down to prevent damage to the reverse osmosis water purification equipment. The clean wastewater brine reduction device can then be adjusted as needed.

[0046] Example 6

[0047] Example 6 of the present application provides a device for reducing the amount of clean wastewater and concentrated water. The difference from Example 1 is that the device for reducing the amount of clean wastewater and concentrated water is also provided with: a pure water pipeline, a pure water collection tank, the pure water outlet of the reverse osmosis water purification equipment is connected to the water inlet of the pure water pipeline, and the outlet of the pure water pipeline is connected to the pure water collection tank; at the same time, a pure water flow meter is provided in the pure water pipeline.

[0048] This embodiment also provides pure water pipes, pure water collection tanks and other components in the clean wastewater concentrate reduction device, and a pure water flow meter is provided in the pure water pipe, which is used to monitor the pure water flow rate; so that when the staff finds that the pure water flow rate divided by the sum of the pure water flow rate and the concentrate reflux flow rate is inconsistent with the recovery rate during the clean wastewater concentrate reduction treatment time, they can check the various components of the clean wastewater concentrate reduction device to avoid adverse effects on the stable operation of the clean wastewater concentrate reduction device.

[0049] Example 7

[0050] Example 7 of the present application provides a device for reducing the amount of clean wastewater concentrate, which differs from Example 1 in that a concentrate collection flowmeter is provided in the concentrate collection pipe.

[0051] This embodiment also provides a concentrate collection flow meter in the concentrate collection pipeline so that when the staff finds that the pure water flow divided by the sum of the pure water flow and the concentrate collection flow is inconsistent with the recovery rate during the clean wastewater concentrate collection time, they can check the various components of the clean wastewater concentrate reduction device.

[0052] Example 8

[0053] Example 8 of the present application provides a device for reducing the amount of clean wastewater and concentrated water. The difference from Example 1 is that the device for reducing the amount of clean wastewater and concentrated water is also provided with: a pure water pipeline and a pure water collection tank. The pure water outlet of the reverse osmosis water purification equipment is connected to the water inlet of the pure water pipeline, and the outlet of the pure water pipeline is connected to the pure water collection tank; at the same time, a pure water flow meter is provided in the pure water pipeline, and a concentrated water collection flow meter is provided in the concentrated water collection pipeline.

[0054] This embodiment also provides a method of simultaneously setting a pure water flow meter and a concentrate collection flow meter in the clean wastewater concentrate reduction device; so that when the staff finds that the pure water flow divided by the sum of the pure water flow and the concentrate reflux flow is inconsistent with the recovery rate during the clean wastewater concentrate reduction treatment time, they can directly check the concentrate collection flow meter. When the concentrate flow is found in the concentrate collection flow meter, it can be determined that the concentrate collection valve is loose and needs to be tightened, etc., thereby improving the staff's inspection efficiency of the clean wastewater concentrate reduction device; accordingly, when the staff finds that the concentrate collection flow divided by the sum of the pure water flow and the concentrate collection flow is inconsistent with the recovery rate during the clean wastewater concentrate collection time, they can check the concentrate reflux flow meter again.

[0055] Example 9

[0056] Example 9 of the present application provides a clean wastewater concentrate reduction device, which differs from Example 1 in that the clean wastewater concentrate conductivity meter is installed in the clean wastewater concentrate tank through a detachable threaded connection.

[0057] Example 10

[0058] Example 10 of the present application provides a device for reducing the volume of clean wastewater concentrate, which differs from Example 1 in that the mixed concentrate conductivity meter is installed in the buffer water tank through a detachable threaded connection.

[0059] Example 11

[0060] Example 11 of the present application provides a device for reducing the volume of clean wastewater concentrate, which differs from Example 1 in that the concentrate conductivity meter is installed in the concentrate pipeline through a detachable threaded connection.

[0061] Since the conductivity of the concentrate measured by the conductivity meter has a significant impact on the stable operation of the reverse osmosis water purification equipment, an increase in the conductivity of the concentrate requires an increase in the operating pressure of the reverse osmosis water purification equipment, which affects the operating stability of the reverse osmosis water purification equipment. Therefore, in the present embodiments 9-11, the clean wastewater concentrate conductivity meter, the mixed concentrate conductivity meter, and the concentrate conductivity meter are all configured to be detachable. This allows staff to remove the conductivity meter during maintenance of the clean wastewater concentrate reduction device, perform calibration, and then reinstall it in the clean wastewater concentrate tank, buffer water tank, or concentrate pipeline to improve the operating stability of the reverse osmosis water purification equipment.

[0062] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A clean wastewater concentrate reduction device, characterized in that: include: Clean wastewater concentrate tank, concentrate pump, buffer water tank, mixed wastewater pipeline, mixed wastewater pump, reverse osmosis water purification equipment, concentrate pipeline, concentrate return pipeline, concentrate collection pipeline and concentrate collection tank; The water inlet of the concentrated water pump is connected to the clean wastewater concentrated water tank, and the water outlet of the concentrated water pump is connected to the water inlet of the buffer water tank; a clean wastewater concentrated water conductivity meter is installed in the clean wastewater concentrated water tank; The water inlet of the mixed wastewater pipeline is connected to the water outlet of the buffer water tank, and the water outlet of the mixed wastewater pipeline is connected to the water inlet of the mixed wastewater pump, and a mixed wastewater valve is provided in the mixed wastewater pipeline; The water outlet of the mixed wastewater pump is connected to the water inlet of the reverse osmosis water purification equipment; The concentrated water outlet of the reverse osmosis water purification device is connected to the water inlet of the concentrated water pipeline, the concentrated water return outlet of the concentrated water pipeline is connected to the water inlet of the concentrated water return pipeline, the water outlet of the concentrated water return pipeline is connected to the water inlet of the buffer water tank, and a concentrated water return valve is provided in the concentrated water return pipeline; The concentrated water collection outlet of the concentrated water pipeline is connected to the water inlet of the concentrated water collection pipeline, the water outlet of the concentrated water collection pipeline is connected to the concentrated water collection pool, and a concentrated water collection valve is provided in the concentrated water collection pipeline.

2. The clean wastewater concentrate reduction device according to claim 1, characterized in that: A reflux flow meter is provided in the concentrated water reflux pipeline; The concentrated water pump is selected from a variable frequency water pump.

3. The clean wastewater concentrate reduction device according to claim 1, characterized in that: A mixed concentrated water conductivity meter is detachably installed in the buffer water tank.

4. The clean wastewater concentrate reduction device according to claim 1, characterized in that: A stirring device is provided in the buffer water tank.

5. The clean wastewater concentrate reduction device according to claim 1, characterized in that: A concentrated water conductivity meter is detachably installed in the concentrated water pipeline.

6. The clean wastewater concentrate reduction device according to claim 1, characterized in that: A clean wastewater concentrated water conductivity meter is detachably installed in the clean wastewater concentrated water tank.

7. The clean wastewater concentrate reduction device according to claim 1, characterized in that: The clean wastewater concentrated water reduction device also includes: a pure water pipeline and a pure water collection pool. The pure water outlet of the reverse osmosis water purification equipment is connected to the water inlet of the pure water pipeline, and the outlet of the pure water pipeline is connected to the pure water collection pool.

8. The clean wastewater concentrate reduction device according to claim 7, characterized in that: A pure water flow meter is provided in the pure water pipeline.

9. The clean wastewater concentrate reduction device according to claim 1, characterized in that: A concentrated water collection flowmeter is provided in the concentrated water collection pipeline.

10. The clean wastewater concentrate reduction device according to claim 7, characterized in that: A pure water flow meter is provided in the pure water pipeline, and a concentrated water collection flow meter is provided in the concentrated water collection pipeline.

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