Industrial wastewater recycling treatment system

Abstract

The utility model discloses an industrial wastewater recycling treatment system which comprises a raw water tank, a regulating tank, integrated reaction flocculation equipment, negative-pressure low-temperature evaporation equipment, a first monitoring device, integrated membrane equipment, vacuum dehydration equipment, a recycling water tank, a mixed water tank and a condensate water tank, the first monitoring device is used for monitoring whether effluent of the negative-pressure low-temperature evaporation equipment is qualified or not. According to the utility model, the integrated reaction flocculation equipment is used for reaction, a large amount of impurities in wastewater are removed, the impurities are further removed through the negative-pressure low-temperature evaporation equipment, high-quality reuse water is obtained through precise treatment of the integrated membrane equipment, and the purification treatment effect is good; high-concentration waste liquid and sludge waste liquid generated in the wastewater treatment process enter vacuum dewatering equipment, and are further dewatered and reduced, so that near-zero emission is realized; the first monitoring device is used for monitoring the outlet water of the negative-pressure low-temperature evaporation equipment, so that the service life of the integrated membrane equipment is greatly prolonged, and the outlet water quality is greatly improved.

Description

Technical Field

[0001] The utility model specifically relates to an industrial wastewater reuse treatment system. Background Art

[0002] With the rapid development of electroplating and electronics industries, the amount of chemical nickel wastewater treatment has increased year by year. Chemical nickel wastewater mainly consists of metal nickel and its reducing agents (formaldehyde, hypophosphite, etc.), complexing agents (potassium sodium tartrate, EDTA-2Na, etc.), other additives and pH regulators (sodium hydroxide, sulfuric acid, etc.). Therefore, chemical nickel wastewater has complex components and contains a large amount of nickel ions and organic matter. Among them, EDTA will form a stable complex with nickel ions, so it is very difficult to remove chemical nickel. In addition, EDTA is difficult to be oxidized, which makes it difficult to remove organic matter, and conventional recycling and treatment technologies are difficult.

[0003] Traditional treatment methods mainly rely on network breaking and flocculation. The flocculation effluent is mixed with other wastewater for treatment. The treatment effect is poor and it is easy to cause the paralysis of the entire wastewater system, which brings greater environmental risks and environmental treatment costs to the enterprise. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes an industrial wastewater reuse treatment system.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] The utility model discloses an industrial wastewater reuse treatment system, comprising: a raw water tank, a regulating tank, an integrated reaction flocculation device, a negative pressure low temperature evaporation device, a first monitoring device, an integrated membrane device, a vacuum dehydration device, a reuse water tank, a mixing water tank and a condensation water tank;

[0007] The raw water tank is used to store raw industrial wastewater;

[0008] The regulating tank is used to mix various liquids;

[0009] Integrated reaction flocculation equipment is used to remove impurities from wastewater using reaction flocculation agents;

[0010] Negative pressure low temperature evaporation equipment is used to separate and purify wastewater under low temperature conditions;

[0011] The first monitoring device is used to monitor whether the water output of the negative pressure low temperature evaporation equipment is qualified;

[0012] Integrated membrane equipment is used to further purify wastewater;

[0013] The recycled water tank is used to store the water purified by the integrated membrane equipment;

[0014] The mixing water tank is used to collect the waste liquid of the integrated reaction flocculation equipment, the concentrated liquid of the negative pressure low temperature evaporation equipment and the concentrated liquid of the integrated membrane equipment;

[0015] The vacuum dehydration equipment is used to dehydrate the liquid in the mixing water tank;

[0016] The condensate tank is used to collect the condensate from the vacuum dehydration equipment and transmit it back to the regulating tank through pipelines;

[0017] The mixing water tank, vacuum dehydration equipment, condensed water tank, and regulating tank are connected in sequence through pipelines;

[0018] The raw water tank, regulating tank, integrated reaction flocculation equipment, and negative pressure low-temperature evaporation equipment are connected in sequence through pipelines;

[0019] The water outlet of the negative pressure low temperature evaporation device is connected to the water inlet of the integrated membrane device through a pipeline, and the water outlet of the integrated membrane device is connected to the water inlet of the recycled water tank through a pipeline;

[0020] The water outlet of the negative pressure low temperature evaporation device is also connected to the water inlet of the integrated reaction flocculation device through the first reflux pipeline;

[0021] When the first monitoring device monitors that the outlet water of the negative pressure low-temperature evaporation device is qualified, the outlet water flows to the integrated membrane device through the pipeline; when the outlet water is unqualified, the outlet water flows back to the integrated reaction flocculation device through the first reflux pipeline.

[0022] Based on the above technical solution, the following improvements can be made:

[0023] As a preferred solution, the integrated reaction flocculation equipment includes: a dosing device and a plurality of reaction tanks and sedimentation tanks connected in sequence, the reaction tank is used to react under the action of the agent, and the sedimentation tank is used to perform solid-liquid separation on the wastewater after the reaction in the plurality of reaction tanks.

[0024] As a preferred solution, the industrial wastewater reuse treatment system also includes: a residue storage tank, which is connected to the vacuum dehydration equipment and is used to store the residue dehydrated by the vacuum dehydration equipment.

[0025] As a preferred solution, negative pressure low temperature evaporation equipment is used to separate and purify wastewater at 37°C-42°C.

[0026] As a preferred solution, a control valve is installed on the pipeline connecting the condensate tank and the regulating tank.

[0027] As a preferred solution, a liquid level meter is installed in the condensate water tank.

[0028] As a preferred solution, a liquid level meter is installed in the recycled water tank.

[0029] As a preferred solution, a second monitoring device is also installed at the water outlet of the integrated membrane device. The second monitoring device is used to monitor whether the outlet water of the integrated membrane device meets the requirements. If so, the outlet water flows to the recycling water tank through the pipeline; if not, the outlet water flows back to the integrated reaction flocculation device through the second return pipeline.

[0030] The utility model discloses an industrial wastewater recycling treatment system having the following beneficial effects:

[0031] First, the utility model utilizes integrated reaction flocculation equipment to react and remove a large amount of impurities in the wastewater, further removes impurities through negative pressure low-temperature evaporation equipment, obtains high-quality recycled water through precise processing through integrated membrane equipment, and has a good purification treatment effect.

[0032] Secondly, the high-concentration waste liquid and sludge waste liquid generated in the wastewater treatment process of the utility model enter the vacuum dehydration equipment for further dehydration and reduction treatment to achieve "near zero emission".

[0033] Thirdly, the utility model adopts the first monitoring device to monitor the water outlet of the negative pressure low temperature evaporation equipment, which greatly improves the service life and water outlet quality of the integrated membrane equipment; compared with the existing single treatment, the water outlet index is more reliable.

[0034] Fourth, the utility model is suitable for the reuse and treatment of various types of industrial wastewater, has a wide range of applicable scenarios, and has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 This is one of the structural schematic diagrams of the industrial wastewater reuse treatment system provided in the embodiment of the utility model.

[0037] Figure 2 The second structural schematic diagram of the industrial wastewater reuse treatment system provided in the embodiment of the utility model.

[0038] Among them: 1-raw water tank, 2-adjusting tank, 31-first reaction tank, 32-second reaction tank, 33-sedimentation tank, 4-negative pressure low temperature evaporation equipment, 51-first monitoring device, 52-second monitoring device, 6-integrated membrane equipment, 7-vacuum dehydration equipment, 8-recycled water tank, 9-mixing water tank, 10-condensed water tank, 11-residue storage tank. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Meanwhile, expressions such as “first” and “second” are only used to distinguish multiple configurations, rather than to limit the order between configurations or other features.

[0042] In addition, the expression of “comprising” an element is an “open” expression, which simply means that a corresponding component exists, and should not be interpreted as excluding additional components.

[0043] In order to achieve the purpose of the utility model, in some embodiments of the industrial wastewater reuse treatment system, the industrial wastewater reuse treatment system is used to treat chemical nickel wastewater.

[0044] like Figure 1 As shown, the industrial wastewater reuse treatment system includes: a raw water tank 1, a regulating tank 2, an integrated reaction flocculation device, a negative pressure low-temperature evaporation device 4, a first monitoring device 51, an integrated membrane device 6, a vacuum dehydration device 7, a reuse water tank 8, a mixing water tank 9, a condensed water tank 10 and a residue storage tank 11.

[0045] The raw water tank 1 is mainly used to store the raw solution of chemical nickel wastewater, which is convenient for accurate measurement and automatic start and stop of the device.

[0046] The regulating tank 2 is used to mix various liquids (raw water, condensed water from the vacuum dehydration equipment 7, etc.) to ensure that the water quality of the system is relatively stable.

[0047] The integrated reaction flocculation equipment is used to remove impurities in wastewater by using reaction flocculation agents. In this embodiment, the integrated reaction flocculation equipment includes: a dosing device and a first reaction tank 31, a second reaction tank 32 and a sedimentation tank 33 connected in sequence.

[0048] For chemical nickel wastewater with low organic content, the first reaction tank 31 and the second reaction tank 32 mainly use traditional reaction flocculation agents to remove impurities in the wastewater. For chemical nickel wastewater with high organic content, the first reaction tank 31 uses a special organic remover to react, and the second reaction tank 32 uses flocculation reaction to remove macromolecular organic matter and various impurities; the sedimentation tank 33 realizes solid-liquid separation after the reaction of the second reaction tank 32 is completed.

[0049] The negative pressure low temperature evaporation equipment 4 is used to separate and purify waste water under low temperature conditions (eg, 37° C.-42° C.).

[0050] The first monitoring device 51 is used to monitor whether the output water of the negative pressure low temperature evaporation equipment 4 is qualified.

[0051] The integrated membrane device 6 is used to further purify the wastewater.

[0052] The recycled water tank 8 is used to recycle the water purified by the water storage integrated membrane device 6 .

[0053] The mixing water tank 9 is used to collect the waste liquid of the integrated reaction flocculation device, the concentrated liquid of the negative pressure low temperature evaporation device 4 and the concentrated liquid of the integrated membrane device 6 .

[0054] The vacuum dehydration equipment 7 is used to dehydrate the liquid in the mixing water tank 9, thus truly achieving "near zero discharge" of chemical nickel wastewater.

[0055] The residue storage tank 11 is connected to the vacuum dehydration device 7 and is used to store the residue dehydrated by the vacuum dehydration device 7. The dehydrated residue enters the residue storage tank 11 and can be subsequently outsourced for processing.

[0056] The condensed water tank 10 is used to collect the condensed water from the vacuum dehydration equipment 7 and transmit it back to the regulating tank 2 through a pipeline.

[0057] The mixing water tank 9, the vacuum dehydration equipment 7, the condensed water tank 10, and the regulating tank 2 are connected in sequence through pipelines;

[0058] The raw water tank 1, the regulating tank 2, the integrated reaction flocculation equipment, and the negative pressure low temperature evaporation equipment 4 are connected in sequence through pipelines;

[0059] The water outlet of the negative pressure low temperature evaporation device 4 is connected to the water inlet of the integrated membrane device 6 through a pipeline, and the water outlet of the integrated membrane device 6 is connected to the water inlet of the recycled water tank 8 through a pipeline;

[0060] The water outlet of the negative pressure low temperature evaporation device 4 is also connected to the water inlet of the integrated reaction flocculation device through the first reflux pipeline;

[0061] When the first monitoring device 51 monitors that the outlet water of the negative pressure low-temperature evaporation device 4 is qualified, the outlet water flows to the integrated membrane device 6 through the pipeline; when the outlet water is unqualified, the outlet water flows back to the first reaction tank 31 through the first reflux pipeline to continue the reaction, thereby ensuring the stability of the water inlet of the integrated membrane device 6, and further ensuring that the integrated membrane device 6 processes high-quality recycled water.

[0062] The industrial wastewater reuse treatment system of the utility model can effectively improve the existing situation of substandard chemical nickel wastewater treatment and unsatisfactory purification effect, realize a set of systems to treat different types of chemical nickel wastewater and can cope with types of chemical nickel wastewater with great changes in water quality, greatly reducing the risk of being punished for non-compliance with environmental protection treatment standards of traditional treatment processes; it has strong operability in on-site application, wide applicable scenarios and broad market prospects.

[0063] The utility model can design various treatment capacity systems according to the wastewater volume of different industries and the water quality of chemical nickel wastewater. It can be integrated and assembled and occupies a small area. The utility model has a high degree of integration and can be applied to various indoor and outdoor scenes. It has strong comprehensive applicability and a wide range of applications.

[0064] In some embodiments, the water outlet of the negative pressure low temperature evaporation device 4 is connected to the water inlet of the first monitoring device 51 through a pipeline;

[0065] The first water outlet of the first monitoring device 51 is connected to the water inlet of the integrated reaction flocculation device through a pipeline, and the second water outlet thereof is connected to the water inlet of the integrated membrane device 6 through a pipeline;

[0066] Corresponding valves are respectively disposed at the first water outlet and the second water outlet of the first monitoring device 51 .

[0067] In order to further optimize the implementation effect of the utility model, in some other embodiments, the other characteristic technologies are the same, the difference is that a control valve (not shown in the figure) is installed on the pipeline connecting the condensate tank 10 and the regulating tank 2.

[0068] The conductance of the pipeline is controlled by the control valve to adjust the content of condensed water in the regulating tank 2.

[0069] In order to further optimize the implementation effect of the utility model, in some other implementations, the other characteristic technologies are the same, the difference is that a liquid level meter is installed in the condensation water tank 10 to monitor the liquid level in the condensation water tank 10 in real time.

[0070] In order to further optimize the implementation effect of the utility model, in some other implementations, the other characteristic technologies are the same, the difference is that a liquid level meter is installed in the recycling water tank 8 to monitor the liquid level in the recycling water tank 8 in real time.

[0071] In order to further optimize the implementation effect of the utility model, in some other implementations, the remaining characteristic technologies are the same, except that, Figure 2As shown, a second monitoring device 2 is also installed at the water outlet of the integrated membrane device 6. The second monitoring device 2 is used to monitor whether the effluent of the integrated membrane device 6 meets the requirements. If so, the effluent flows through the pipeline to the reuse water tank 8; if not, the effluent flows back to the integrated reaction flocculation device through the second reflux pipeline.

[0072] The utility model discloses an industrial wastewater recycling treatment system having the following beneficial effects:

[0073] First, the utility model utilizes integrated reaction flocculation equipment to react and remove a large amount of impurities in the wastewater, further removes impurities through negative pressure low temperature evaporation equipment 4, obtains high-quality recycled water through precision treatment through integrated membrane equipment 6, and has a good purification treatment effect.

[0074] Secondly, the high-concentration waste liquid and sludge waste liquid generated in the wastewater treatment process of the utility model enter the vacuum dehydration equipment 7 for further dehydration and volume reduction treatment to achieve "near zero emission".

[0075] Thirdly, the utility model adopts the first monitoring device 51 to monitor the water outlet of the negative pressure low temperature evaporation device 4, which greatly improves the service life and water outlet quality of the integrated membrane device 6; compared with the existing single treatment, the water outlet index is more reliable.

[0076] Fourth, the utility model is suitable for the reuse and treatment of various types of industrial wastewater, has a wide range of applicable scenarios, and has broad market prospects.

[0077] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0078] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0079] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

[0080] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

Claims

1. Industrial wastewater reuse treatment system, characterized in that: include: Raw water tank, regulating tank, integrated reaction flocculation equipment, negative pressure low temperature evaporation equipment, first monitoring device, integrated membrane equipment, vacuum dehydration equipment, recycled water tank, mixed water tank and condensed water tank; The raw water tank is used to store raw industrial wastewater; The regulating tank is used to mix various liquids; The integrated reaction flocculation equipment is used to remove impurities in wastewater by using reaction flocculation agents; The negative pressure low temperature evaporation equipment is used to separate and purify wastewater under low temperature conditions; The first monitoring device is used to monitor whether the water output of the negative pressure low temperature evaporation equipment is qualified; The integrated membrane device is used to further purify the wastewater; The recycled water tank is used to recycle water after being purified by the integrated membrane storage device; The mixing water tank is used to collect waste liquid from the integrated reaction flocculation device, concentrated liquid from the negative pressure low temperature evaporation device, and concentrated liquid from the integrated membrane device; The vacuum dehydration equipment is used to dehydrate the liquid in the mixing water tank; The condensed water tank is used to collect condensed water from the vacuum dehydration equipment and transmit it back to the regulating tank through a pipeline; The mixing water tank, vacuum dehydration equipment, condensation water tank, and regulating tank are connected in sequence through pipelines; The raw water tank, regulating tank, integrated reaction flocculation equipment, and negative pressure low temperature evaporation equipment are connected in sequence through pipelines; The water outlet of the negative pressure low temperature evaporation device is connected to the water inlet of the integrated membrane device through a pipeline, and the water outlet of the integrated membrane device is connected to the water inlet of the recycled water tank through a pipeline; The water outlet of the negative pressure low temperature evaporation device is also connected to the water inlet of the integrated reaction flocculation device through a first reflux pipeline; When the first monitoring device monitors that the outlet water of the negative pressure low-temperature evaporation device is qualified, the outlet water flows to the integrated membrane device through the pipeline; when the outlet water is unqualified, the outlet water flows back to the integrated reaction flocculation device through the first reflux pipeline.

2. The industrial wastewater reuse treatment system according to claim 1 is characterized in that: The integrated reaction flocculation equipment comprises: a dosing device and a plurality of reaction tanks and sedimentation tanks connected in sequence, wherein the reaction tank is used for reacting under the action of the reagent, and the sedimentation tank is used for solid-liquid separation of wastewater after reacting in the plurality of reaction tanks.

3. The industrial wastewater reuse treatment system according to claim 1 is characterized in that: The industrial wastewater reuse treatment system also includes a residue storage tank, which is connected to the vacuum dehydration equipment and is used to store the residue dehydrated by the vacuum dehydration equipment.

4. The industrial wastewater reuse treatment system according to claim 1, characterized in that: The negative pressure low temperature evaporation equipment is used to separate and purify waste water at 37°C-42°C.

5. The industrial wastewater reuse treatment system according to claim 1, characterized in that: A control valve is installed on the pipeline connecting the condensed water tank and the regulating tank.

6. The industrial wastewater reuse treatment system according to claim 1, characterized in that: A liquid level gauge is installed in the condensation water tank.

7. The industrial wastewater reuse treatment system according to claim 1, characterized in that: A liquid level meter is installed in the recycled water tank.

8. The industrial wastewater reuse treatment system according to claim 1, characterized in that: A second monitoring device is also installed at the water outlet of the integrated membrane device, and the second monitoring device is used to monitor whether the effluent of the integrated membrane device meets the requirements. If so, the effluent flows to the recycling water tank through the pipeline; if not, the effluent flows back to the integrated reaction flocculation device through the second return pipeline.

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