A device system for concentrated brine recovery treatment

Abstract

The utility model belongs to the field of milk processing technology relates to a kind of device systems of concentrated brine recovery processing, including liquid storage unit, filtration unit, power unit and control unit connected by pipeline;Wherein, the liquid storage unit includes sequentially connected waste brine tank, buffer tank and treatment water tank;The filtration unit includes sequentially connected filter, primary reverse osmosis device and secondary reverse osmosis device;The power unit includes at least 2 power pumps;The control unit includes on-line conductivity meter, PLC controller and at least 3 butterfly valves.The device system provided by the utility model realizes the efficient recovery of concentrated brine and the recycling of water resources through the coordinated cooperation between each processing unit, while taking into account pollution control and cost optimization, in line with environmental protection and sustainable development requirements.

Description

Technical Field

[0001] This utility model belongs to the field of dairy processing technology and relates to a device system for the recovery and treatment of concentrated brine. Background Technology

[0002] In the field of dairy deep processing, the production of lactoferrin, lactoperoxidase, and demineralized whey powder requires sequential core processes such as elution, nanofiltration, and electrodialysis. These processes generate large amounts of high-concentration waste brine. Currently, the industry's conventional method for treating this waste brine is to transport it to a wastewater treatment plant, treat it to meet standards, and then discharge it.

[0003] However, this conventional model has significant technical shortcomings, resulting in three core technical problems that urgently need to be addressed: First, environmental pollution and treatment burden. Direct discharge of high-concentration wastewater will cause direct environmental pollution. Even if transported to a wastewater treatment plant, its high salinity will significantly increase the treatment load, requiring additional reagents and energy to degrade the salt, and there is also the risk of incomplete treatment leading to secondary pollution. Second, water waste. The conventional model only aims at "meeting discharge standards" without recycling the water resources in the wastewater, resulting in the one-time consumption of valuable water resources in the water-intensive dairy processing industry, violating the principle of sustainable water use, especially in water-scarce areas. Third, enterprise operating costs. Transporting wastewater to a wastewater treatment plant incurs transportation and treatment service fees, which will continuously increase the company's environmental protection expenditures in the long run, and cannot generate added value through resource recycling, failing to meet the technical needs of enterprises for cost reduction and efficiency improvement.

[0004] In summary, existing treatment methods cannot effectively balance pollution control, resource recovery, and cost optimization. There is an urgent need for a system that can achieve concentrated brine recovery and water resource recycling to address the aforementioned industry pain points. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device system for the recovery and treatment of concentrated brine, so as to realize the efficient recovery of concentrated brine and the recycling of water resources, while taking into account pollution control and cost optimization, and meeting the requirements of environmental protection and sustainable development.

[0006] To achieve the objective of this utility model, the following technical solution is adopted:

[0007] This invention provides a device system for the recovery and treatment of concentrated brine, including a storage unit, a filtration unit, a power unit, and a control unit connected by pipelines.

[0008] The liquid storage unit includes a waste brine tank, a buffer tank, and a treated water tank connected in sequence; the filtration unit includes a filter, a first-stage reverse osmosis device, and a second-stage reverse osmosis device connected in sequence; the power unit includes at least two power pumps; and the control unit includes an online conductivity meter, a PLC controller, and at least three butterfly valves.

[0009] The device system provided by this utility model stores brine from different stages through a storage unit. The waste brine tank centrally collects concentrated brine generated during nanofiltration, electrodialysis, and ultrafiltration processes in the deep processing of milk. A buffer tank receives upstream effluent and provides a stable feed for downstream treatment. The treated water tank collects treated water that meets standards. The filtration unit employs a three-layer filtration design to achieve impurity removal and progressive desalination. The power unit provides power support for different filtration stages through multiple power pumps. The control unit utilizes an automated control design to achieve precise detection and intelligent switching. The coordinated operation of these processing units ultimately achieves efficient recovery of concentrated brine and recycling of water resources, while also considering pollution control and cost optimization, meeting environmental protection and sustainable development requirements.

[0010] Preferably, the number of waste brine tanks is ≥1 and the number of treated water tanks is ≥1.

[0011] Preferably, the power unit includes two power pumps, namely a first power pump and a second power pump.

[0012] Preferably, the control unit includes three butterfly valves, namely a first butterfly valve, a second butterfly valve, and a third butterfly valve.

[0013] Preferably, the outlet of the waste brine tank is connected to the filter via a first butterfly valve, and the outlet of the filter is connected to the first-stage reverse osmosis unit via a first power pump.

[0014] Preferably, the outlet of the first-stage reverse osmosis unit is connected to the buffer tank, and the outlet of the buffer tank is connected to the second-stage reverse osmosis unit via a second power pump.

[0015] Preferably, the outlet of the secondary reverse osmosis unit is connected to the online conductivity meter, and the outlet of the online conductivity meter is connected to the treated water tank through a second butterfly valve.

[0016] Preferably, the series pipeline containing the second power pump, the secondary reverse osmosis unit, and the online conductivity meter is connected in parallel with the third butterfly valve.

[0017] Preferably, the online conductivity meter is electrically connected to the PLC controller, and the PLC controller is electrically connected to the second butterfly valve and the third butterfly valve respectively.

[0018] Preferably, the volume of the waste brine tank, the buffer tank, and the treated water tank is 5-50L each.

[0019] Preferably, the power pump includes any one of a centrifugal pump, an axial flow pump, a mixed flow pump, a vortex pump, or a jet pump.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The device system provided by this utility model stores brine from different stages through a storage unit. The waste brine tank centrally collects concentrated brine generated during nanofiltration, electrodialysis, and ultrafiltration processes in the deep processing of milk. A buffer tank receives upstream effluent and provides a stable feed for downstream treatment. The treated water tank collects treated water that meets standards. The filtration unit employs a three-layer filtration design to achieve impurity removal and progressive desalination. The power unit provides power support for different filtration stages through multiple power pumps. The control unit utilizes an automated control design to achieve precise detection and intelligent switching. The coordinated operation of these processing units ultimately achieves efficient recovery of concentrated brine and recycling of water resources, while also considering pollution control and cost optimization, meeting environmental protection and sustainable development requirements. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the concentrated brine recovery and treatment device system provided in Example 1.

[0023] Wherein: 11-Waste brine tank; 12-Buffer tank; 13-Treatment water tank; 21-Filter; 22-First-stage reverse osmosis unit; 23-Second-stage reverse osmosis unit; 31-First power pump; 32-Second power pump; 41-Online conductivity meter; 42-PLC controller; 43-First butterfly valve; 44-Second butterfly valve; 45-Third butterfly valve. Detailed Implementation

[0024] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] One embodiment of this utility model provides a device system for concentrated brine recovery and treatment, including a storage unit, a filtration unit, a power unit, and a control unit connected by pipelines.

[0027] The liquid storage unit includes a waste brine tank, a buffer tank, and a treated water tank connected in sequence; the filtration unit includes a filter, a first-stage reverse osmosis device, and a second-stage reverse osmosis device connected in sequence; the power unit includes at least two power pumps; and the control unit includes an online conductivity meter, a PLC controller, and at least three butterfly valves.

[0028] The device system provided by this utility model stores brine from different stages through a storage unit. The waste brine tank centrally collects concentrated brine generated during nanofiltration, electrodialysis, and ultrafiltration processes in the deep processing of milk. A buffer tank receives upstream effluent and provides a stable feed for downstream treatment. The treated water tank collects treated water that meets standards. The filtration unit employs a three-layer filtration design to achieve impurity removal and progressive desalination. The power unit provides power support for different filtration stages through multiple power pumps. The control unit utilizes an automated control design to achieve precise detection and intelligent switching. The coordinated operation of these processing units ultimately achieves efficient recovery of concentrated brine and recycling of water resources, while also considering pollution control and cost optimization, meeting environmental protection and sustainable development requirements.

[0029] In some embodiments, the number of waste brine tanks is ≥1, for example, 1, 2, 3, 4 or 5, and the number of treatment water tanks is ≥1, for example, 1, 2, 3, 4 or 5, but is not limited to the listed values, and other unlisted values ​​within this range are also applicable.

[0030] In some embodiments, the power unit includes two power pumps, namely a first power pump and a second power pump.

[0031] In some embodiments, the control unit includes three butterfly valves, namely a first butterfly valve, a second butterfly valve, and a third butterfly valve.

[0032] In some embodiments, the outlet of the waste brine tank is connected to the filter via a first butterfly valve, and the outlet of the filter is connected to the first-stage reverse osmosis unit via a first power pump.

[0033] In this invention, the filter can be a single filter with a pore size of 1-2mm, which effectively protects the impeller of the power pump and the reverse osmosis membrane, and prevents the equipment from shutting down due to clogging by impurities.

[0034] In some embodiments, the outlet of the first-stage reverse osmosis unit is connected to the buffer tank, and the outlet of the buffer tank is connected to the second-stage reverse osmosis unit via a second power pump.

[0035] In some embodiments, the outlet of the secondary reverse osmosis unit is connected to the online conductivity meter, and the outlet of the online conductivity meter is connected to the treated water tank via a second butterfly valve.

[0036] In some embodiments, the series pipeline containing the second power pump, the secondary reverse osmosis unit, and the online conductivity meter is connected in parallel with the third butterfly valve.

[0037] In some embodiments, the online conductivity meter is electrically connected to the PLC controller, and the PLC controller is electrically connected to the second butterfly valve and the third butterfly valve, respectively.

[0038] This invention uses a PLC controller to automatically control the opening and closing of the butterfly valve, eliminating the need for manual intervention in detection and valve switching, thus reducing human error.

[0039] In some embodiments, the volumes of the waste brine tank, buffer tank, and treated water tank are each independently 5-50L, for example, 5L, 10L, 15L, 20L, 25L, 30L, 35L, 40L, 45L, or 50L, but are not limited to the listed values; other unlisted values ​​within this range are also applicable.

[0040] In some embodiments, the power pump includes any one of a centrifugal pump, an axial flow pump, a mixed flow pump, a vortex pump, or a jet pump.

[0041] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] This embodiment provides a concentrated brine recovery and treatment device system, including a storage unit, a filtration unit, a power unit, and a control unit connected by pipelines. Figure 1As shown, the liquid storage unit includes a waste brine tank 11, a buffer tank 12, and a treated water tank 13 connected in sequence; the filtration unit includes a filter 21, a first-stage reverse osmosis device 22, and a second-stage reverse osmosis device 23 connected in sequence; the power unit includes a first power pump 31 and a second power pump 32; the control unit includes an online conductivity meter 41, a PLC controller 42, a first butterfly valve 43, a second butterfly valve 44, and a third butterfly valve 45.

[0044] Specifically, the outlet of the waste brine tank 11 is connected to the filter 21 via a first butterfly valve 43, and the outlet of the filter 21 is connected to the first-stage reverse osmosis unit 22 via a first power pump 31; the outlet of the first-stage reverse osmosis unit 22 is connected to the buffer tank 12, and the outlet of the buffer tank 12 is connected to the second-stage reverse osmosis unit 23 via a second power pump 32; the outlet of the second-stage reverse osmosis unit 23 is connected to the online conductivity meter 41, and the outlet of the online conductivity meter 41 is connected to the treated water tank 13 via a second butterfly valve 44; the series pipeline containing the second power pump 32, the second-stage reverse osmosis unit 23, and the online conductivity meter 41 is connected in parallel with the third butterfly valve 45; the online conductivity meter 41 is electrically connected to the PLC controller 42, and the PLC controller 42 is electrically connected to the second butterfly valve 44 and the third butterfly valve 45 (not shown in the figure).

[0045] In this embodiment, the volume of the waste brine tank 11, the buffer tank 12, and the treated water tank 13 is 30L each; the power pump is a centrifugal pump; and the filter 21 is a single filter with a pore size of 1.5mm.

[0046] Application Example 1

[0047] This application example uses the apparatus system provided in Example 1 to recover concentrated brine, including the following steps:

[0048] (1) Start-up phase: The program automatically opens the first butterfly valve 43 and the second butterfly valve 44 to ensure that the raw liquid delivery pipeline and the qualified water discharge pipeline are unobstructed; at the same time, the first power pump 31 and the second power pump 32 are started to establish the liquid circulation power in the system.

[0049] (2) Filtration and desalination stage: The raw liquid in the waste brine tank 11 enters the filter 21 through the first butterfly valve 43. After removing impurities, it is transported by the first power pump 31 to the first-stage reverse osmosis unit 22 for initial desalination. After the effluent from the first-stage reverse osmosis unit 22 enters the buffer tank 12 to stabilize the flow rate, it is transported by the second power pump 32 to the second-stage reverse osmosis unit 23 for deep desalination.

[0050] (3) Compliance testing and switching stage: The effluent from the secondary reverse osmosis unit 23 flows through the online conductivity meter 41. If the conductivity meets the preset standard (salt content meets the standard), the PLC controller 42 controls the second butterfly valve 44 to remain open and the third butterfly valve 45 to close, and the qualified water enters the treated water tank 13; if the conductivity does not meet the standard, the PLC controller 42 controls the second butterfly valve 44 to close and the third butterfly valve 45 to open, and the unqualified water flows back to the buffer tank 12 and re-enters the secondary reverse osmosis unit 23 for repeated desalination until the indicators meet the standards.

[0051] (4) Cleaning stage: After production is completed, the system automatically connects to the CIP pipeline (not shown in the figure) and performs in-situ cleaning of each component through the preset cleaning program to remove residual salt and impurities and ensure the effect of the next operation.

[0052] Therefore, the device system provided by this utility model stores brine from different stages through a storage unit. The waste brine tank centrally collects concentrated brine generated during nanofiltration, electrodialysis, and ultrafiltration processes in the deep processing of milk. The buffer tank receives upstream effluent and provides a stable feed for downstream treatment. The treated water tank collects the treated water that meets the standards. The filtration unit adopts a three-layer filtration design to achieve impurity removal and progressive desalination. The power unit provides power support for different filtration stages through multiple power pumps. The control unit achieves precise detection and intelligent switching through automated control design. The coordinated operation of these processing units ultimately achieves efficient recovery of concentrated brine and recycling of water resources, while also considering pollution control and cost optimization, meeting the requirements of environmental protection and sustainable development.

[0053] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. A device system for concentrated brine recovery and treatment, characterized in that, It includes a liquid storage unit, a filtration unit, a power unit, and a control unit connected by pipelines; The liquid storage unit includes a waste brine tank, a buffer tank, and a treated water tank connected in sequence; the filtration unit includes a filter, a first-stage reverse osmosis device, and a second-stage reverse osmosis device connected in sequence; the power unit includes at least two power pumps; and the control unit includes an online conductivity meter, a PLC controller, and at least three butterfly valves.

2. The apparatus system for concentrated brine recovery and treatment according to claim 1, characterized in that, The number of waste brine tanks is ≥1, and the number of treated water tanks is ≥1.

3. The apparatus system for concentrated brine recovery and treatment according to claim 1 or 2, characterized in that, The power unit includes two power pumps, namely a first power pump and a second power pump.

4. The apparatus system for concentrated brine recovery and treatment according to claim 3, characterized in that, The control unit includes three butterfly valves: a first butterfly valve, a second butterfly valve, and a third butterfly valve.

5. The apparatus system for concentrated brine recovery and treatment according to claim 4, characterized in that, The outlet of the waste brine tank is connected to the filter via a first butterfly valve, and the outlet of the filter is connected to the first-stage reverse osmosis unit via a first power pump.

6. The apparatus system for concentrated brine recovery and treatment according to claim 5, characterized in that, The outlet of the first-stage reverse osmosis unit is connected to the buffer tank, and the outlet of the buffer tank is connected to the second-stage reverse osmosis unit via a second power pump.

7. The apparatus system for concentrated brine recovery and treatment according to claim 6, characterized in that, The outlet of the secondary reverse osmosis unit is connected to the online conductivity meter, and the outlet of the online conductivity meter is connected to the treated water tank through a second butterfly valve.

8. The apparatus system for concentrated brine recovery and treatment according to claim 7, characterized in that, The series pipeline containing the second power pump, the secondary reverse osmosis unit, and the online conductivity meter is connected in parallel with the third butterfly valve.

9. The apparatus system for concentrated brine recovery and treatment according to claim 8, characterized in that, The online conductivity meter is electrically connected to the PLC controller, and the PLC controller is electrically connected to the second butterfly valve and the third butterfly valve respectively.

10. The apparatus system for concentrated brine recovery and treatment according to claim 1, characterized in that, The volume of the waste brine tank, buffer tank, and treated water tank is 5-50L each; the power pump includes any one of centrifugal pump, axial flow pump, mixed flow pump, vortex pump, or jet pump.

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