Advanced oxidation treatment equipment for antimony-containing wastewater
By designing an advanced oxidation treatment equipment containing multiple treatment tanks and filter membrane components, the problem of the total antimony content exceeding the standard after treatment of antimony-containing wastewater in the prior art is solved, and efficient antimony pollution reduction and wastewater treatment effect are achieved.
Patent Information
- Application Number
- CN202421293796.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-06
AI Technical Summary
In the existing antimony-containing wastewater treatment process, the organic content in the water after the primary pretreatment is high, resulting in serious blockage of sodium filtration and reverse osmosis membranes in the secondary deepening treatment, and the total antimony content of the effluent water exceeds the standard.
An advanced oxidation treatment equipment was designed, including wastewater regulation tank, acid regulation tank, oxidation tank, reaction tank, neutralization tank, flocculation tank, sedimentation tank, MCR tank, filter membrane assembly, clear water tank and reverse osmosis membrane, through the pipeline The mixer adds ferrous chloride and ferrous sulfate, adjusts the pH value and adds hydrogen peroxide, increases the oxidation reaction time, and is deeply filtered through flocculant and multi-layer filter membrane assembly.
It effectively reduces the pollution of rare metal antimony to the environment, realizes efficient treatment of wastewater, ensures that the total antimony content of the effluent meets the standards, and supports the sustainable development of the industry.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wastewater treatment, in particular to advanced oxidation treatment equipment for antimony-containing wastewater. Background Art
[0002] Antimony is a non-renewable nonferrous metal. Antimony and its compounds are widely used in various fields such as ceramics, enamel, rubber, pigments, semiconductor components, glass, alloys, etc. However, antimony is not an essential element for organisms and has cumulative toxicity and carcinogenicity. Antimony pollution is the pollution of the environment by antimony and its compounds. When antimony and antimony-containing metals are smelted or coal mined, as well as other processes using antimony or its compounds, waste gas, wastewater and waste residue containing antimony elements or their compounds can be produced to pollute the environment. During the combustion or smelting of minerals, antimony enters the atmosphere in the form of vapor or dust. Antimony in water comes from the dissolution of antimony-containing rocks, the discharge of antimony-containing industrial wastewater, and antimony-containing rainfall. Water seeping into the soil also pollutes it, so antimony-containing wastewater needs to be treated.
[0003] At present, the main treatment processes for antimony-containing wastewater are: 1) primary pretreatment: regulation + dosing coagulation aeration + sedimentation + MCR membrane; 2) secondary in-depth treatment: sand filtration + carbon filtration + resin softening + ultrafiltration + sodium filtration + reverse osmosis, and the total antimony in the effluent water quality meets the standard. The organic matter content in the water after primary pretreatment is high, resulting in serious blockage of the sodium filtration and reverse osmosis membranes in the in-depth treatment. After the sodium filtration and reverse osmosis membranes are damaged, the filtration effect becomes poor, and the total antimony content in the effluent exceeds the above standards. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide an advanced oxidation treatment equipment for antimony-containing wastewater, which can minimize the pollution of rare metal antimony to the environment and achieve sustainable development of the industry.
[0005] The utility model adopts the following technical solutions:
[0006] An advanced oxidation treatment device for antimony-containing wastewater comprises a device body, wherein the device body comprises a wastewater regulating tank, an acid regulating tank, an oxidation tank, a reaction tank, a neutralization tank, a flocculation tank, a first sedimentation tank, an MCR tank, a filter membrane assembly, a second sedimentation tank, a clean water tank, and a reverse osmosis membrane; the wastewater regulating tank is connected to the acid regulating tank through an inlet pipe, and the inlet pipe is provided with a pipeline mixer, and the pipeline mixer is used to add ferric chloride and ferrous sulfate; the acid regulating tank is connected to the oxidation tank, and the acid regulating tank is respectively connected to a first pH meter and a first feeding pump, and the first pH meter is connected to the first feeding pump; the oxidation tank is connected to the reaction tank, and the oxidation tank is respectively connected to an ORP meter and a second feeding pump, and the ORP meter is connected to the second feeding pump; the reaction tank, the neutralization tank, the flocculation tank, the first sedimentation tank, the MCR tank, the filter membrane assembly, the second sedimentation tank, the clean water tank, and the reverse osmosis membrane are connected in sequence.
[0007] A further improvement to the above technical solution is that the equipment body also includes a blower, and the blower is respectively connected to the acid adjustment tank, the oxidation tank, the reaction tank, the neutralization tank, the MCR tank, the second sedimentation tank, and the clear water tank.
[0008] A further improvement to the above technical solution is that the first pH meter is used to detect the pH value of the acid adjustment tank, and the first feeding pump is used to add sulfuric acid.
[0009] A further improvement to the above technical solution is that the ORP meter is used to detect the ORP value of the oxidation tank, and the second feeding pump is used to add hydrogen peroxide.
[0010] A further improvement to the above technical solution is that the neutralization tank is connected to a second pH meter and a third feed pump, and the second pH meter is connected to the third feed pump; the second pH meter is used to detect the pH value of the neutralization tank, and the third feed pump is used to add sodium hydroxide.
[0011] A further improvement to the above technical solution is that the flocculation tank is connected to a fourth feeding pump, and the fourth feeding pump is used for adding PAM.
[0012] A further improvement to the above technical solution is that the filter membrane assembly includes a sand-carbon filter membrane, an ultrafiltration membrane, and a nanofiltration membrane, and the sand-carbon filter membrane, the ultrafiltration membrane, and the nanofiltration membrane are connected in sequence.
[0013] A further improvement to the above technical solution is that the ultrafiltration membrane is connected to the nanofiltration membrane through a first water pump.
[0014] A further improvement to the above technical solution is that the MCR pool is connected to the sand-carbon filter membrane via a second water pump.
[0015] A further improvement to the above technical solution is that the reverse osmosis membrane is connected to a sludge thickening tank, the first sedimentation tank is connected to the sludge thickening tank, and the sludge thickening tank is connected to a tailings pond via a third pumping pump.
[0016] The beneficial effects of the utility model are:
[0017] The utility model has a reasonable overall design and adopts a high-efficiency oxidation process to effectively reduce the pollution of rare metal antimony to the environment; water enters the wastewater regulating tank, and ferric chloride and ferrous sulfate are added through a pipeline mixer to transport the wastewater to the acid regulating tank. The acid regulating tank controls the amount of sulfuric acid added by the first feeding pump through a first pH meter to adjust the pH value to 3.8-4; the oxidation tank controls the second feeding pump to add hydrogen peroxide according to the ORP value through an ORP meter; the reaction tank does not add a reagent to increase the oxidation reaction time; the neutralization tank controls the amount of sodium hydroxide added by the third feeding pump through a second pH meter to adjust the pH value to 7.8-8.0; the flocculation tank adds PAM through a fourth feeding pump; the treated wastewater passes through a sedimentation tank, an MCR tank, and a filter membrane assembly in sequence; the filter membrane assembly filters the produced water and discharges it; the filtered concentrated water enters the sedimentation tank, a clear water tank, and a reverse osmosis membrane; the reverse osmosis membrane filters the produced water and discharges it; the filtered concentrated water and the sludge precipitated in the sedimentation tank enter the sludge concentration tank respectively. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the connection relationship of the advanced oxidation treatment equipment of the utility model;
[0019] Figure 2 for Figure 1 A schematic diagram of the connection relationship of the wastewater regulating tank of the advanced oxidation treatment equipment;
[0020] Figure 3 for Figure 1 A schematic diagram of the connection relationship of the acid conditioning tank of the advanced oxidation treatment equipment;
[0021] Figure 4 for Figure 1 A schematic diagram of the connection relationship of the oxidation tanks of the advanced oxidation treatment equipment;
[0022] Figure 5 for Figure 1 A schematic diagram of the connection relationship of the neutralization tank of the advanced oxidation treatment equipment;
[0023] Figure 6 for Figure 1 Schematic diagram of the connection relationship of the flocculation tank of the advanced oxidation treatment equipment;
[0024] Figure 7 for Figure 1 A schematic diagram of the connection relationship of the first water pump of the advanced oxidation treatment equipment;
[0025] Figure 8 for Figure 1 A schematic diagram of the connection relationship of the second water pump of the advanced oxidation treatment equipment;
[0026] Fig. 9 for Figure 1 Schematic diagram of the connection relationship of the sludge thickening tank of the advanced oxidation treatment equipment.
[0027] The numbers in the figure are:
[0028] 10. Equipment body; 11. Reaction tank; 12. First sedimentation tank; 13. MCR tank; 14. Second sedimentation tank; 15. Clear water tank; 16. Reverse osmosis membrane; 17. Blower; 18. Sludge thickening tank; 19. Third pumping pump; 20. Wastewater regulating tank; 21. Water inlet pipe; 22. Pipeline mixer; 30. Acid adjustment tank; 31. First pH meter; 32. First feed pump; 40. Oxidation tank; 41. ORP meter; 42. Second feed pump; 50. Neutralization tank; 51. Second pH meter; 52. Third feed pump; 60. Flocculation tank; 61. Fourth feed pump; 70. Filter membrane assembly; 71. Sand-carbon filter membrane; 72. Ultrafiltration membrane; 73. Nanofiltration membrane; 74. First pumping pump; 75. Second pumping pump; 80. Tailings pond. DETAILED DESCRIPTION
[0029] 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 in 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.
[0030] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] like Figures 1 to 9As shown, it is an embodiment of the utility model, which relates to an advanced oxidation treatment device for antimony-containing wastewater, including a device body 10, wherein the device body 10 includes a wastewater regulating tank 20, an acid regulating tank 30, an oxidation tank 40, a reaction tank 11, a neutralization tank 50, a flocculation tank 60, a first sedimentation tank 12, an MCR tank 13, a filter membrane assembly 70, a second sedimentation tank 14, a clear water tank 15, and a reverse osmosis membrane 16; the wastewater regulating tank 20 is connected to the acid regulating tank 30 through an inlet pipe 21, and the inlet pipe 21 is provided with a pipeline mixer 22, and the pipeline mixer 22 is used to add ferric chloride and ferrous sulfate. The acid regulating tank 30 is connected to the oxidation tank 40, and the acid regulating tank 30 is respectively connected with a first pH meter 31 and a first feed pump 32, and the first pH meter 31 is connected to the first feed pump 32; the oxidation tank 40 is connected to the reaction tank 11, and the oxidation tank 40 is respectively connected with an ORP meter 41 and a second feed pump 42, and the ORP meter 41 is connected to the second feed pump 42; the reaction tank 11, the neutralization tank 50, the flocculation tank 60, the first sedimentation tank 12, the MCR tank 13, the filter membrane assembly 70, the second sedimentation tank 14, the clear water tank 15, and the reverse osmosis membrane 16 are connected in sequence.
[0033] Furthermore, if Figure 1 As shown, the equipment body 10 further includes a blower 17, and the blower 17 is respectively connected to the acid adjustment tank 30, the oxidation tank 40, the reaction tank 11, the neutralization tank 50, the MCR tank 13, the second sedimentation tank 14, and the clean water tank 15. Specifically, the blower 17 is used to aerate the acid adjustment tank 30, the oxidation tank 40, the reaction tank 11, the neutralization tank 50, the MCR tank 13, the second sedimentation tank 14, and the clean water tank 15.
[0034] Furthermore, if Figure 3 As shown, the first pH meter 31 is used to detect the pH value of the acid adjustment tank 30, and the first feed pump 32 is used to add sulfuric acid. Specifically, the acid adjustment tank 30 controls the amount of sulfuric acid added by the first feed pump 32 through the first pH meter 31 to adjust the pH value to 3.8-4, the reaction time of the acid adjustment tank 30 is 1 hour, and the stirring method of the acid adjustment tank 30 adopts the aeration method of the blower 17.
[0035] Furthermore, if Figure 4 As shown, the ORP meter 41 is used to detect the ORP value of the oxidation pond 40, and the second feed pump 42 is used to add hydrogen peroxide. Specifically, the oxidation pond 40 controls the second feed pump 42 to add hydrogen peroxide according to the ORP value through the ORP meter 41, the reaction time of the oxidation pond 40 is 1 hour, and the stirring mode of the oxidation pond 40 adopts the aeration mode of the blower 17.
[0036] Furthermore, if Figure 5As shown, the neutralization tank 50 is connected to a second pH meter 51 and a third feed pump 52, wherein the second pH meter 51 is connected to the third feed pump 52; the second pH meter 51 is used to detect the pH value of the neutralization tank 50, and the third feed pump 52 is used to add sodium hydroxide. Specifically, the neutralization tank 50 controls the amount of sodium hydroxide added by the third feed pump 52 through the second pH meter 51 to adjust the pH value to 7.8-8.0, and the stirring method adopts mechanical stirring.
[0037] Furthermore, if Figure 6 As shown, the flocculation tank 60 is connected to a fourth feed pump 61, and the fourth feed pump 61 is used to add PAM. Specifically, the flocculation tank 60 adds PAM through the fourth feed pump 61, and the stirring method adopts mechanical stirring.
[0038] Furthermore, if Figure 1 , Figure 7 and Figure 8 As shown, the filter membrane assembly 70 includes a sand carbon filter membrane 71, an ultrafiltration membrane 72, and a nanofiltration membrane 73, which are connected in sequence; the ultrafiltration membrane 72 is connected to the nanofiltration membrane 73 through a first pump 74; and the MCR pool 13 is connected to the sand carbon filter membrane 71 through a second pump 75. Specifically, the wastewater passes through the sand carbon filter membrane 71, the ultrafiltration membrane 72, and the nanofiltration membrane 73 in sequence, and can be discharged after the produced water meets the standards. After multiple filtrations, the wastewater filtration effect is improved.
[0039] Furthermore, if Figure 1 and Fig. 9 As shown, the reverse osmosis membrane 16 is connected to a sludge thickening tank 18, the first sedimentation tank 12 is connected to the sludge thickening tank 18, and the sludge thickening tank 18 is connected to a tailings pond 80 via a third pump 19. Specifically, the reverse osmosis membrane 16 filters out produced water and discharges it, and the filtered concentrated water and sludge precipitated in the sedimentation tank enter the sludge thickening tank 18 respectively.
[0040] The utility model has a reasonable overall design and adopts an efficient oxidation process to effectively reduce the pollution of rare metal antimony to the environment; the wastewater regulating tank 20 is fed with water, ferric chloride and ferrous sulfate are added through a pipeline mixer 22, and the wastewater is transported to an acid regulating tank 30, and the acid regulating tank 30 controls the amount of sulfuric acid added by a first feed pump 32 through a first pH meter 31 to adjust the pH value to 3.8-4, and the oxidation tank 40 controls the second feed pump 42 to add hydrogen peroxide according to the ORP value through an ORP meter 41, and the reaction tank 11 does not add a reagent to increase the oxidation reaction time. In the meantime, the neutralization tank 50 controls the amount of sodium hydroxide added by the third feed pump 52 through the second pH meter 51 to adjust the pH value to 7.8-8.0, and the flocculation tank 60 adds PAM through the fourth feed pump 61. The treated wastewater passes through the sedimentation tank, the MCR tank 13, and the filter membrane assembly 70 in sequence. The filter membrane assembly 70 filters the produced water and discharges it. The filtered concentrated water enters the sedimentation tank, the clear water tank 15, and the reverse osmosis membrane 16. The reverse osmosis membrane 16 filters the produced water and discharges it. The filtered concentrated water and the sludge precipitated in the sedimentation tank enter the sludge thickening tank 18 respectively.
[0041] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.
Claims
1. An advanced oxidation treatment device for antimony-containing wastewater, characterized in that: The device comprises a device body, which comprises a wastewater regulating tank, an acid regulating tank, an oxidation tank, a reaction tank, a neutralization tank, a flocculation tank, a first sedimentation tank, an MCR tank, a filter membrane assembly, a second sedimentation tank, a clear water tank, and a reverse osmosis membrane; the wastewater regulating tank is connected to the acid regulating tank through an inlet pipe, and the inlet pipe is provided with a pipeline mixer, and the pipeline mixer is used to add ferric chloride and ferrous sulfate; the acid regulating tank is connected to the oxidation tank, and the acid regulating tank is respectively connected to a first pH meter and a first feeding pump, and the first pH meter is connected to the first feeding pump; The oxidation tank is connected to the reaction tank, which is respectively connected to an ORP meter and a second feed pump, and the ORP meter is connected to the second feed pump; the reaction tank, neutralization tank, flocculation tank, first sedimentation tank, MCR tank, filter membrane assembly, second sedimentation tank, clear water tank, and reverse osmosis membrane are connected in sequence.
2. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 1, characterized in that: The neutralization tank is connected to a second pH meter and a third feed pump, and the second pH meter is connected to the third feed pump; the second pH meter is used to detect the pH value of the neutralization tank, and the third feed pump is used to add sodium hydroxide.
3. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 1, characterized in that: The first pH meter is used to detect the pH value of the acid adjustment tank, and the first feed pump is used to add sulfuric acid.
4. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 1, characterized in that: The ORP meter is used to detect the ORP value of the oxidation tank, and the second feeding pump is used to add hydrogen peroxide.
5. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 1, characterized in that: The equipment body also includes a blower, which is respectively connected to the acid adjustment tank, the oxidation tank, the reaction tank, the neutralization tank, the MCR tank, the second sedimentation tank, and the clean water tank.
6. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 1, characterized in that: The flocculation tank is connected to a fourth feeding pump, and the fourth feeding pump is used for adding PAM.
7. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 1, characterized in that: The filter membrane assembly comprises a sand-carbon filter membrane, an ultrafiltration membrane and a nanofiltration membrane, and the sand-carbon filter membrane, the ultrafiltration membrane and the nanofiltration membrane are connected in sequence.
8. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 7, characterized in that: The ultrafiltration membrane is connected to the nanofiltration membrane through a first water pump.
9. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 1, characterized in that: The MCR tank is connected to the sand-carbon filter membrane through a second water pump.
10. The advanced oxidation treatment equipment for antimony-containing wastewater according to claim 1, characterized in that: The reverse osmosis membrane is connected to a sludge thickening tank, the first sedimentation tank is connected to the sludge thickening tank, and the sludge thickening tank is connected to a tailings pond via a third pumping pump.