Pharmaceutical wastewater treatment device

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a pharmaceutical wastewater treatment device which comprises a treatment barrel, a liquid outlet pipe and an upper cover, a partition plate is arranged at the bottom of the treatment barrel, a conveying pipe is arranged on the upper portion of the partition plate, the upper portion of the outer side of the conveying pipe is sleeved with a sleeve, and a filter membrane is fixed to the upper end of the outer side of the sleeve; the outer ring position of the filter membrane is fixed on the connecting piece; when the filter membrane is completely opened, the edge of the filter membrane is attached to the inner wall of the treatment barrel. The filter membrane is arranged on the inner side of the treatment barrel in advance, and when grease is separated out on the surface of wastewater generated in the pharmaceutical process and is in an emulsified state, the filter membrane is opened, so that the outer ring of the filter membrane is tightly attached to the inner wall of the treatment barrel, and the emulsified liquid is separated from wastewater liquid below; and directly adding a compound required by the reaction into the wastewater solution at the lower part, and treating organic matters in the wastewater.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly relates to a wastewater treatment device for pharmaceutical use. Background Art

[0002] Wastewater is generated during the pharmaceutical process. Generally, fermentation-based pharmaceuticals, traditional Chinese medicine-based pharmaceuticals, extraction-based pharmaceuticals, chemical synthesis-based pharmaceuticals, and bioengineering-based pharmaceuticals all generate wastewater. And due to excessive organic matter contained in the pharmaceutical process, after the wastewater stands for a period of time, a high-concentration emulsion will form on the surface.

[0003] There is a prior art with a publication number of CN107915277A and a name of an efficient oil separator, which includes a box body and an oil pollution bin arranged on the box body. The top of the oil pollution bin is provided with an oil discharge pipe. The box body includes a bottom plate, a cover plate, and side enclosing plates arranged between the bottom plate and the cover plate. The two ends of the bottom plate are upturned, and the two ends of the cover plate are downwardly inclined; the oil pollution bin is of a conical structure, and the oil pollution bin and the box body are butt-jointed through a flange, and a hoop is sleeved outside the flange. This efficient oil separator has a reasonable structural design. The oil pollution bin is arranged at the middle position of the cover plate. The two ends of the cover plate are downwardly inclined, and the oil pollution bin is of a conical structure. The separated oil automatically gathers at the top of the oil pollution bin through the cover plate and the conical structure, which is convenient for the discharged separated oil and has efficient separation.

[0004] The above-mentioned prior art is convenient for separating oil, but in the wastewater generated in pharmaceutical production, there are a large amount of polysorbate, antifoaming agent, lubricant, and surfactant. The existence of these substances makes the oil on the surface layer of the wastewater in an emulsified state after standing for a period of time. In such a case, adding reactants will affect the reaction process. If the oil is discharged in advance, part of the untreated wastewater will be carried out, resulting in a decline in the treatment effect. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a wastewater treatment device for pharmaceutical use.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: Design a wastewater treatment device for pharmaceutical use, including a treatment barrel, a liquid outlet pipe, and an upper cover: A partition is arranged at the bottom of the treatment barrel. A conveying pipe is arranged above the partition. A sleeve is sleeved on the upper part of the outer side of the conveying pipe. A lifting assembly is arranged between the bottom of the sleeve and the partition; A plurality of connecting plates are annularly and arrayedly distributed at the upper end of the outer side of the conveying pipe. Connecting pieces are slidably arranged at the bottoms of the connecting plates. A support rod is hinged between the connecting piece and the outer side of the sleeve. A filter membrane is fixed at the upper end of the outer side of the sleeve. The outer ring position of the filter membrane is fixed on the connecting piece; After the filter membrane is fully opened, the edge of the filter membrane fits against the inner wall of the treatment barrel.

[0007] Preferably, the connecting member includes a T-shaped track and a T-shaped slider. The T-shaped track is opened at the bottom of the connecting plate. The T-shaped slider slides within the T-shaped track. The size of the T-shaped track matches the size of the T-shaped slider, and the edge of the filter membrane is fixed between the top of the T-shaped slider and the support rod.

[0008] Preferably, an annular plate is fixedly installed on the inner wall of the treatment barrel above the connecting plate, and the annular plate fits against the upper part of the connecting plate.

[0009] Preferably, a chamber is formed between the lower end of the partition plate and the bottom of the treatment barrel. An outer sleeve pipe and a round pipe extending to the outside of the treatment barrel are arranged in the chamber.

[0010] Preferably, the lifting assembly includes a straight plate, a piston rod, and a sleeve barrel. The sleeve barrels are symmetrically installed on the partition plate. The bottom of the piston rod slides within the sleeve barrel. The straight plate is installed at the outer bottom position of the sleeve barrel, and the top of the piston rod is fixed to the straight plate. The inside of the sleeve barrel is communicated with one end of the round pipe, and the other end of the round pipe is connected to the cylinder.

[0011] Preferably, three baffles are arranged inside the conveying pipe. The inside of the conveying pipe is divided into three independent spaces by the multiple baffles. A plurality of leakage holes are opened on the outside of the conveying pipe, and the leakage holes are respectively located on the conveying pipe between adjacent two baffles.

[0012] Preferably, in the initial position, the sleeve barrel blocks the position of the leakage holes. When the position of the sleeve barrel rises, the position of the leakage holes is exposed.

[0013] Preferably, a first communication pipe, a second communication pipe, and a third communication pipe are respectively arranged inside the outer sleeve pipe. One ends of the first communication pipe, the second communication pipe, and the third communication pipe respectively extend into three different independent spaces inside the conveying pipe.

[0014] Preferably, the reagent introduced into the first communication pipe is hydrogen peroxide with ferrous ions as a catalyst, the reagent introduced into the second communication pipe is silver nitrate solution, and the gas introduced into the third communication pipe is gas.

[0015] Preferably, a one-way valve is arranged inside the gas discharge pipe provided above the treatment barrel for discharging the gas inside the treatment barrel.

[0016] The pharmaceutical wastewater treatment device proposed by the present invention has the beneficial effect that: the pharmaceutical wastewater treatment device sets a filter membrane on the inner side of a treatment barrel in advance, and when the wastewater generated in the pharmaceutical process precipitates grease on the surface and the grease is in an emulsified state, the filter membrane is stretched open so that the outer ring of the filter membrane is tightly attached to the inner wall of the treatment barrel, thereby separating the emulsion from the wastewater liquid below. While the above process is being carried out, the compounds required for the reaction are directly added to the wastewater solution below to treat the organic matter in the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a pharmaceutical wastewater treatment device proposed by the present invention.

[0018] Figure 2 This is a schematic structural diagram from another perspective of a pharmaceutical wastewater treatment device proposed by the present invention.

[0019] Figure 3 This is a structural front view of a pharmaceutical wastewater treatment device proposed by the present invention.

[0020] Figure 4 This is a structural schematic diagram of the filter membrane position of a pharmaceutical wastewater treatment device proposed by the present invention.

[0021] Figure 5 for Figure 4 A schematic structural diagram of a proposed pharmaceutical wastewater treatment device from another perspective.

[0022] Figure 6 for Figure 5 An enlarged structural view of part A of a proposed pharmaceutical wastewater treatment device.

[0023] Figure 7 This is a schematic structural diagram of a baffle of a pharmaceutical wastewater treatment device proposed by the present invention.

[0024] In the figure: upper cover 1, processing barrel 2, annular plate 3, connecting plate 4, filter membrane 5, support rod 6, sleeve 7, straight plate 8, piston rod 9, leak hole 10, delivery pipe 11, first connecting pipe 12, liquid outlet pipe 13, second connecting pipe 14, chamber 15, round tube 16, outer sleeve 17, gas discharge pipe 18, sleeve barrel 19, connecting piece 20, T-type track 201, T-type slider 202, baffle 21, third connecting pipe 22, partition 23. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1, referenceFigures 1-6 , a pharmaceutical wastewater treatment device, including a treatment barrel 2, a liquid outlet pipe 13 and an upper cover 1. A partition plate 23 is arranged at the bottom of the treatment barrel 2. A conveying pipe 11 is arranged above the partition plate 23. A sleeve 7 is sleeved on the upper part of the outer side of the conveying pipe 11. An elevating assembly is arranged between the bottom of the sleeve 7 and the partition plate 23.

[0027] The elevating assembly includes a straight plate 8, a piston rod 9 and a sleeve barrel 19. The sleeve barrels 19 are symmetrically installed on the partition plate 23. The bottom of the piston rod 9 is slidably arranged in the sleeve barrel 19. The straight plate 8 is installed at the bottom position of the outer side of the sleeve 7. The top of the piston rod 9 is fixed on the straight plate 8. The inside of the sleeve barrel 19 is communicated with one end of a circular pipe 16. The other end of the circular pipe 16 is connected with a cylinder. A chamber 15 is formed between the lower end of the partition plate 23 and the bottom of the treatment barrel 2. An outer sleeve pipe 17 and a circular pipe 16 extending to the outside of the treatment barrel 2 are arranged in the chamber 15.

[0028] A plurality of connecting plates 4 are annularly arrayed on the upper end of the outer side of the conveying pipe 11. Connectors 20 are slidably arranged at the bottoms of the connecting plates 4. A support rod 6 is hinged between the connector 20 and the outer side of the sleeve 7. A filter membrane 5 is fixed on the upper end of the outer side of the sleeve 7. The outer ring position of the filter membrane 5 is fixed on the connector 20. The connector 20 includes a T-shaped track 201 and a T-shaped slider 202. The T-shaped track 201 is opened at the bottom of the connecting plate 4. The T-shaped slider 202 slides in the T-shaped track 201. The size of the T-shaped track 201 matches the size of the T-shaped slider 202. The edge of the filter membrane 5 is fixed between the T-shaped slider 202 and the top of the support rod 6; An annular plate 3 is fixedly installed on the inner wall of the treatment barrel 2 above the connecting plate 4. The annular plate 3 is mutually attached to the upper part of the connecting plate 4. When the filter membrane 5 is fully opened, the edge of the filter membrane 5 is mutually attached to the inner wall of the treatment barrel 2.

[0029] When treating the wastewater generated in the pharmaceutical process, the operator opens the upper cover 1 and injects the wastewater into the inside of the treatment barrel 2. The liquid level height is lower than the height where the gas discharge pipe 18 is located. After standing for a period of time, the grease on the surface of the wastewater presents an emulsified state because of the polysorbate, defoamer, lubricant and surfactant added in the pharmaceutical process.

[0030] Since the emulsified grease floats on the surface after standing, if the grease is directly separated at this time, the separation will not be complete, and some liquid that has not been treated by subsequent reactions will be discharged. Therefore, when the wastewater is injected into the treatment barrel 2, the filter membrane 5 is in a contracted state. When the upper layer of grease is in an emulsified state, the pressure change inside the circular tube 16 is used to drive the piston rod 9 to move upward. During this process, the position of the sleeve 7 rises, and the support rod 6 hinged on the outside of the sleeve 7 moves toward the far end of the connecting plate 4. During the movement, the T-shaped slider 202 will move in the T-shaped track 201 at the lower end of the connecting plate 4. At the same time, the filter membrane 5 is fixed between the support rod 6 and the bottom of the T-shaped slider 202. The filter membrane 5 adopts a composite PVDF filter membrane. The T-shaped slider 202 and the treatment After the inner walls of the treatment barrel 2 are squeezed and collided with each other, the edge of the filter membrane 5 is also pressed against the inner wall of the treatment barrel 2. At the same time, the connecting plates 4 are distributed in a ring array. After the filter membrane 5 is opened, it is circular and slightly concave in the middle, so the emulsified grease above is separated from the waste water below. At the same time, in this process, the filter membrane 5 does not contact the grease above, and the grease is more concentrated on the surface of the liquid. After the waste water below is combined with the added reactants for reaction, the liquid outlet pipe 13 is opened to slowly discharge the waste water. Most of the emulsified grease is blocked by the filter membrane 5 and remains at the upper end of the filter membrane 5 to achieve separation. In this way, when treating the waste water, not only can the waste water be fully reacted, but also the grease can be avoided from hindering the reaction process during the reaction.

[0031] Example 2, reference Figure 7 The difference between this embodiment and embodiment 1 is that three baffles 21 are arranged inside the delivery pipe 11, and the interior of the delivery pipe 11 is divided into three independent spaces by the multiple baffles 21. A plurality of leakage holes 10 are opened on the outside of the delivery pipe 11, and the leakage holes 10 are respectively located on the delivery pipe 11 between two adjacent baffles 21. In the initial position, the sleeve 7 blocks the position of the leakage hole 10. When the position of the sleeve 7 rises, the position of the leakage hole 10 is exposed. The outer sleeve 17 is respectively provided with a first connecting pipe 12, a second connecting pipe 14 and a third connecting pipe 22, and one end of the first connecting pipe 12, the second connecting pipe 14 and the third connecting pipe 22 respectively extends to three different independent spaces in the delivery pipe 11.

[0032] The first connecting pipe 12 is fed with a hydrogen peroxide reagent using ferrous ions as a catalyst. Pharmaceutical wastewater contains a large amount of organic matter that needs to be treated. When the sleeve 7 moves upward, the leak hole 10 on the delivery pipe 11 is exposed, and the first connecting pipe 12 is fed with a hydrogen peroxide reagent using ferrous ions as a catalyst. The reagent will enter the interior of the treatment barrel 2 from the leak hole 10 to react with the organic matter in the wastewater and oxidize the organic matter into carbon dioxide and water.

[0033] Example 3, reference Figure 6 The difference between this embodiment and Embodiment 1 and Embodiment 2 is that silver nitrate solution is introduced into the second connecting pipe 14, and gas is introduced into the third connecting pipe 22. A gas discharge pipe 18 is further arranged above the treatment barrel 2, and a one-way valve is arranged inside to discharge the gas inside the treatment barrel 2.

[0034] At the same time, due to the particularity of pharmaceutical wastewater, which has the characteristics of high salt content and a relatively high chloride ion concentration in the oil smoke in the wastewater, this causes chloride ions to react with the added catalyst to form complexes, reducing the catalytic effect and changing the reaction path to generate other side reactants.

[0035] Therefore, the inside of the delivery pipe 11 is divided into three independent spaces by the baffle 21. One of the spaces is connected to the second connecting pipe 14, and silver nitrate solution is transported into it through the second connecting pipe 14. The silver ions are used to neutralize the chloride ions in the wastewater and generate corresponding silver chloride precipitates, thereby reducing the chloride ion concentration and ensuring that the input catalyst can smoothly participate in the treatment of organic matter in the wastewater. In order to accelerate the reaction progress, the traditional method of using stirring cannot be used for pharmaceutical wastewater because the energy generated by stirring will disperse the emulsified grease floating on the upper layer.

[0036] Therefore, gas is introduced into another independent space inside the delivery pipe 11 by means of pressure, so that the gas can smoothly enter the wastewater. The introduced gas will generate bubbles in the wastewater. The contact of compounds in the wastewater will also be promoted during the process of bubble rupture and bubble floating. At the same time, the bubbles will be blocked by the filter membrane 5 above, improving the reaction progress and effectively preventing the separation of the grease above.

[0037] The working principle of this device is as follows: When treating the wastewater generated during the pharmaceutical process, the operator opens the upper cover 1 and injects the wastewater into the inside of the treatment barrel 2. The liquid level is lower than the height where the gas discharge pipe 18 is located. After standing for a period of time, the grease on the surface of the wastewater presents an emulsified state because of the polysorbate, defoamer, lubricant, and surfactant added during the pharmaceutical process.

[0038] Since the emulsified grease floats on the surface after standing, if the grease is directly separated at this time, the separation will not be complete, and some liquid that has not been treated by subsequent reactions will be discharged. Therefore, when the wastewater is injected into the treatment barrel 2, the filter membrane 5 is in a contracted state. When the upper layer of grease is in an emulsified state, the pressure change inside the circular tube 16 is used to drive the piston rod 9 to move upward. During this process, the position of the sleeve 7 rises, and the support rod 6 hinged on the outside of the sleeve 7 moves toward the far end of the connecting plate 4. During the movement, the T-shaped slider 202 will move in the T-shaped track 201 at the lower end of the connecting plate 4. At the same time, the filter membrane 5 is fixed between the support rod 6 and the bottom of the T-shaped slider 202. The filter membrane 5 adopts a composite PVDF filter membrane. The T-shaped slider 202 and the treatment After the inner walls of the treatment barrel 2 are squeezed and collided with each other, the edge of the filter membrane 5 is also pressed against the inner wall of the treatment barrel 2. At the same time, the connecting plates 4 are distributed in a ring array. After the filter membrane 5 is opened, it is circular and slightly concave in the middle, so the emulsified grease above is separated from the waste water below. At the same time, in this process, the filter membrane 5 does not contact the grease above, and the grease is more concentrated on the surface of the liquid. After the waste water below is combined with the added reactants for reaction, the liquid outlet pipe 13 is opened to slowly discharge the waste water. Most of the emulsified grease is blocked by the filter membrane 5 and remains at the upper end of the filter membrane 5 to achieve separation. In this way, when treating the waste water, not only can the waste water be fully reacted, but also the grease can be avoided from hindering the reaction process during the reaction.

[0039] Pharmaceutical wastewater contains a large amount of organic matter, which needs to be treated. When the sleeve 7 moves upward, the leak hole 10 on the delivery pipe 11 will be exposed, and the first connecting pipe 12 will be introduced with hydrogen peroxide reagent using ferrous ions as a catalyst. The reagent will enter the interior of the treatment barrel 2 from the leak hole 10 to react with the organic matter in the wastewater and oxidize the organic matter into carbon dioxide and water.

[0040] At the same time, due to the particularity of pharmaceutical wastewater, which has the characteristics of high salt content, the chloride ion concentration of tobacco oil in the wastewater is relatively high, which causes the chloride ions to harden with the added catalyst to form complexes, reducing the catalytic effect, while changing the reaction path and generating other side reactants.

[0041] Therefore, the interior of the delivery pipe 11 is divided into three independent spaces by the baffle 21, one of which is connected to the second connecting pipe 14, and the silver nitrate solution is transported into the interior through the second connecting pipe 14, and the silver ions are used to neutralize the chloride ions in the wastewater and generate corresponding silver chloride precipitation, thereby reducing the concentration of chloride ions and ensuring that the catalyst can smoothly participate in the treatment of organic matter in the wastewater. In order to accelerate the progress of the reaction, the traditional method of using stirring cannot be applied to pharmaceutical wastewater, because the energy generated by stirring will disperse the emulsified grease floating above, and most of it will adhere to the inner wall of the treatment tank 2.

[0042] Therefore, gas is introduced under pressure into another independent space inside the delivery pipe 11, so that the gas can smoothly enter the wastewater. The gas introduced will generate bubbles in the wastewater. During the process of bubble rupture and bubble floating, it will also promote the contact of compounds in the wastewater. At the same time, the bubbles will be blocked by the filter membrane 5 above, which can improve the progress of the reaction and effectively prevent the separation of grease above.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A wastewater treatment device for pharmaceutical use, comprising a treatment barrel (2), a liquid outlet pipe (13) and an upper cover (1), characterized in that: A partition plate (23) is arranged at the bottom of the treatment barrel (2). An upper part of the partition plate (23) is provided with a delivery pipe (11). An upper outer part of the delivery pipe (11) is sleeved with a sleeve (7). A lifting assembly is arranged between a bottom of the sleeve (7) and the partition plate (23); A plurality of connecting plates (4) are distributed in a circular-array manner at an upper end of an outer side of the delivery pipe (11). A bottom of each connecting plate (4) is slidably provided with a connecting piece (20). A support rod (6) is hinged between the connecting piece (20) and an outer side of the sleeve (7). A filter membrane (5) is fixed at an upper end of the outer side of the sleeve (7). An outer-ring position of the filter membrane (5) is fixed on the connecting piece (20); When the filter membrane (5) is fully opened, an edge of the filter membrane (5) is in mutual contact with an inner wall of the treatment barrel (2).

2. The pharmaceutical wastewater treatment device according to claim 1, characterized in that, The connecting piece (20) comprises a T-shaped track (201) and a T-shaped slider (202). The T-shaped track (201) is opened at a bottom of the connecting plate (4). The T-shaped slider (202) slides in the T-shaped track (201). Sizes of the T-shaped track (201) and the T-shaped slider (202) are mutually matched. An edge of the filter membrane (5) is fixed between the T-shaped slider (202) and a top of the support rod (6).

3. The pharmaceutical wastewater treatment device according to claim 2, characterized in that, An annular plate (3) is fixedly installed on an inner wall of the treatment barrel (2) above the connecting plate (4), and the annular plate (3) is in mutual contact with an upper part of the connecting plate (4).

4. The pharmaceutical wastewater treatment device according to claim 2, characterized in that, A chamber (15) is formed between a lower end of the partition plate (23) and a bottom of the treatment barrel (2). An outer sleeve pipe (17) and a circular pipe (16) extending to an outside of the treatment barrel (2) are arranged in the chamber (15).

5. The pharmaceutical wastewater treatment device according to claim 4, characterized in that, The lifting assembly comprises a straight plate (8), a piston rod (9) and a sleeve barrel (19). The sleeve barrels (19) are symmetrically installed on the partition plate (23). A bottom of the piston rod (9) is slidably arranged in the sleeve barrel (19). The straight plate (8) is installed at an outer bottom position of the sleeve (7), and a top of the piston rod (9) is fixed on the straight plate (8). An inside of the sleeve barrel (19) is communicated with one end of the circular pipe (16), and the other end of the circular pipe (16) is connected with a cylinder.

6. The pharmaceutical wastewater treatment device according to claim 5, characterized in that, Three baffle plates (21) are arranged inside the delivery pipe (11). The inside of the delivery pipe (11) is divided into three independent spaces by the plurality of baffle plates (21). A plurality of leakage holes (10) are opened on an outer side of the delivery pipe (11), and the leakage holes (10) are respectively located on the delivery pipe (11) between two adjacent baffle plates (21).

7. The pharmaceutical wastewater treatment device according to claim 6, wherein In an initial position, the sleeve (7) blocks positions of the leakage holes (10). When a position of the sleeve (7) rises, the positions of the leakage holes (10) are exposed.

8. The pharmaceutical wastewater treatment device according to claim 5, characterized in that, A first communication pipe (12), a second communication pipe (14), and a third communication pipe (22) are respectively arranged inside the outer sleeve pipe (17), and one ends of the first communication pipe (12), the second communication pipe (14), and the third communication pipe (22) respectively extend into three different independent spaces inside the conveying pipe (11).

9. The pharmaceutical wastewater treatment device according to claim 8, characterized in that, A hydrogen peroxide reagent with ferrous ions as a catalyst is introduced into the first communication pipe (12), a silver nitrate solution is introduced into the second communication pipe (14), and a gas is introduced into the third communication pipe (22).

10. The pharmaceutical wastewater treatment device according to claim 1, characterized in that, A gas discharge pipe (18) with a one-way valve arranged inside is further arranged above the treatment barrel (2) to discharge the gas inside the treatment barrel (2).

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