Treatment device for scutellaria baicalensis acid precipitation waste liquid

Abstract

The utility model discloses a treatment device for scutellaria baicalensis acidification waste liquid. The treatment device comprises a pretreatment tank, a ceramic membrane filter, a first nanofiltration membrane filter, a first buffer tank and a simulated moving bed chromatographic separation system, an organic salt phase outlet of the simulated moving bed chromatographic separation system is communicated with a second buffer tank, a second nanofiltration membrane filter, a first heat concentration tank, a first spray dryer and a scutellaria baicalensis flavone storage tank; an organic phase outlet of the simulated moving bed chromatographic separation system is communicated with a first reverse osmosis membrane filter, a second heat concentration tank, a second spray dryer and a scutellaria baicalensis polysaccharide storage tank; permeate outlets of the first nanofiltration membrane filter and the second nanofiltration membrane filter are communicated with a second reverse osmosis membrane filter; the second reverse osmosis membrane filter is communicated with a third thermal concentration tank, a cooling tank, a plate and frame filter, a drying tank and a potassium chloride storage tank. According to the device, effective components in the scutellaria baicalensis acid precipitation waste liquid are effectively separated, the economic value of the scutellaria baicalensis acid precipitation waste liquid is improved, and environmental pollution caused by direct emission of the scutellaria baicalensis acid precipitation waste liquid is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chemical production device, concretely relates to a kind of for scutellaria acid analysis effluent treatment device. BACKGROUND

[0002] Traditional Chinese medicinal material scutellaria is the dry root of Scutellaria baicalensis Georgi, which contains baicalin, baicalein, wogonoside, wogonin and other flavonoids, in addition, it also contains styrene ketone, palmitic acid, oleic acid and other volatile oil components. Therefore, how to extract active ingredients such as baicalin from the dry root of scutellaria has important significance.

[0003] At present, the extraction method of baicalin is mainly to mix the extraction solvent with the crushed scutellaria, extract under certain conditions, and then precipitate the extraction liquid. The above process can effectively extract baicalin, but a large amount of acid analysis effluent is generated during the whole process, which will pollute the environment and waste resources if discharged directly without treatment. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that, in view of the deficiencies of the prior art, a treatment device for scutellaria acid analysis effluent is provided, which can effectively separate the effective components in the scutellaria acid analysis effluent, thereby improving the economic value of the scutellaria acid analysis effluent and avoiding direct discharge to pollute the environment.

[0005] To solve the above technical problems, the technical scheme of the utility model is:

[0006] A treatment device for scutellaria acid analysis effluent, comprising a pretreatment tank, a ceramic membrane filter, a first nanofiltration membrane filter, a first buffer tank, and a simulated moving bed chromatographic separation system. The organic salt phase outlet of the simulated moving bed chromatographic separation system is connected to a second buffer tank, which is sequentially connected to a second nanofiltration membrane filter, a first heat concentration tank, a first spray dryer, and a scutellaria flavone storage tank. The organic phase outlet of the simulated moving bed chromatographic separation system is sequentially connected to a first reverse osmosis membrane filter, a second heat concentration tank, a second spray dryer, and a scutellaria polysaccharide storage tank. The permeate outlets of the first and second nanofiltration membrane filters are both connected to a second reverse osmosis membrane filter, which is sequentially connected to a third heat concentration tank, a cooling tank, a plate and frame filter, a drying tank, and a potassium chloride storage tank.

[0007] Preferably, the pretreatment tank and the first buffer tank are both provided with a lye inlet. The second buffer tank is provided with an acid inlet.

[0008] Preferably, the pretreatment tank, the first heat concentration tank, the second heat concentration tank, the third heat concentration tank, the drying tank, and the cooling tank are all provided with a jacket, and the jacket is provided with a heat exchange medium inlet and a heat exchange medium outlet.

[0009] Preferably, the mobile phase inlet of the simulated moving bed chromatographic separation system is connected with a pure water storage tank.

[0010] Preferably, the permeate outlet of the first reverse osmosis membrane filter is connected with the mobile phase inlet of the simulated moving bed chromatographic separation system.

[0011] Preferably, the permeate outlet of the second reverse osmosis membrane filter is connected with a wastewater recovery tank.

[0012] With the above technical scheme, the present application has the following advantages:

[0013] The utility model discloses a kind of processing device for baicalin waste liquid, including pretreatment tank, ceramic membrane filter, first nanofiltration membrane filter, first buffer tank, simulated moving bed chromatographic separation system;Organic salt phase outlet of simulated moving bed chromatographic separation system is connected with second buffer tank, second buffer tank is sequentially connected with second nanofiltration membrane filter, first heat concentration tank, first spray dryer, baicalin flavone storage tank;Organic phase outlet of simulated moving bed chromatographic separation system is sequentially connected with first reverse osmosis membrane filter, second heat concentration tank, second spray dryer, baicalin polysaccharide storage tank;The permeate outlet of first nanofiltration membrane filter and second nanofiltration membrane filter is all connected with second reverse osmosis membrane filter, and second reverse osmosis membrane filter is sequentially connected with third heat concentration tank, cooling tank, plate-and-frame filter, drying tank and potassium chloride storage tank.The above-mentioned device carries out processing to baicalin waste liquid, and baicalin flavone, baicalin polysaccharide and potassium chloride three kinds of products are obtained respectively, greatly improve the economic value of baicalin waste liquid, avoid the occurrence of its direct discharge pollution environment problem.

[0014] In the device, the permeate outlet of the first reverse osmosis membrane filter is connected with the mobile phase inlet of the simulated moving bed chromatographic separation system, and the permeate in the process is recycled, which not only reduces the discharge amount of wastewater, but also reduces the amount of pure water used in the simulated moving bed chromatographic separation system, thereby saving energy and reducing consumption.

[0015] In the device, the permeate outlet of the second reverse osmosis membrane filter is connected with a wastewater recovery tank, and the wastewater in the process is recovered and used in the extraction process of baicalin, thereby further saving energy and reducing consumption. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0017] Figure 1This is a schematic structural diagram of Example 1 of the present utility model;

[0018] In the figure, 1. pretreatment tank; 2. ceramic membrane filter; 3. first nanofiltration membrane filter; 4. first buffer tank; 5. simulated moving bed chromatography separation system; 6. second buffer tank; 7. second nanofiltration membrane filter; 8. first hot concentration tank; 9. first spray dryer; 10. scutellaria flavonoid storage tank; 11. first reverse osmosis membrane filter; 12. second hot concentration tank; 13. second spray dryer; 14. scutellaria polysaccharide storage tank; 15. pure water storage tank; 16. second reverse osmosis membrane filter; 17. third hot concentration tank; 18. cooling tank; 19. plate and frame filter; 20. drying tank; 21. potassium chloride storage tank; 22. alkali solution inlet; 23. acid solution inlet; 24. jacket; 25. heat exchange medium inlet; 26. heat exchange medium outlet; 27. wastewater recovery tank. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Example 1

[0021] like Figure 1 As shown, a treatment device for scutellaria acid precipitation waste liquid comprises a pretreatment tank 1 and a ceramic membrane filter 2, wherein the permeate outlet of the ceramic membrane filter 2 is connected to a first nanofiltration membrane filter 3, and the retentate outlet of the first nanofiltration membrane filter 3 is sequentially connected to a first buffer tank 4 and a simulated moving bed chromatography separation system 5; the organic salt phase outlet of the simulated moving bed chromatography separation system 5 is sequentially connected to a second buffer tank 6 and a second nanofiltration membrane filter 7, and the retentate outlet of the second nanofiltration membrane filter 7 is sequentially connected to a first hot concentration tank 8, a first spray dryer 9, and a scutellaria flavonoid storage tank 10; the simulated moving bed chromatography The organic phase outlet of the separation system 5 is connected to the first reverse osmosis membrane filter 11, and the retentate outlet of the first reverse osmosis membrane filter 11 is connected in sequence to the second hot concentration tank 12, the second spray dryer 13, and the Scutellaria polysaccharide storage tank 14; the mobile phase inlet of the simulated moving bed chromatography separation system 5 is connected to the pure water storage tank 15; the permeate outlets of the first nanofiltration membrane filter 3 and the second nanofiltration membrane filter 7 are both connected to the second reverse osmosis membrane filter 16, and the second reverse osmosis membrane filter 16 is connected in sequence to the third hot concentration tank 17, the cooling tank 18, the plate and frame filter 19, the drying tank 20 and the potassium chloride storage tank 21.

[0022] Furthermore, in this embodiment, the pretreatment tank 1 and the first buffer tank 4 are both provided with an alkaline solution inlet 22 ; and the second buffer tank 6 is provided with an acid solution inlet 23 .

[0023] Furthermore, in this embodiment, the pretreatment tank 1 , the first heat concentration tank 8 , the second heat concentration tank 12 , the third heat concentration tank 17 , the drying tank 20 , and the cooling tank 18 are all provided with a jacket 24 , and the jacket 24 is provided with a heat exchange medium inlet 25 and a heat exchange medium outlet 26 .

[0024] Furthermore, in this embodiment, the permeate outlet of the first reverse osmosis membrane filter 11 is connected to the mobile phase inlet of the simulated moving bed chromatography separation system 5 .

[0025] Furthermore, in this embodiment, the permeate outlet of the second reverse osmosis membrane filter 16 is connected to the wastewater recovery tank 27, and the recovered wastewater can be reused in the process of extracting baicalin.

[0026] The process of using the above device to treat the waste liquid of Scutellaria acid precipitation is as follows:

[0027] The baicalin acid precipitated waste liquid is added to the pretreatment tank 1, alkali liquor is added through the alkali liquor inlet 22 to adjust the pH of the baicalin acid precipitated waste liquid, and a heat exchange medium is introduced for cooling. After cooling, the feed liquid is pumped into the ceramic membrane filter 2 for preliminary impurity removal, and the permeate enters the first nanofiltration membrane filter 3 for further impurity removal. The obtained retentate 2 enters the first buffer tank 4, and alkali liquor is added to the first buffer tank 4 through the alkali liquor inlet 22 to adjust the pH. After that, the feed liquid in the first buffer tank 4 enters the simulated moving bed chromatography separation system 5, and pure water is added as a mobile phase to the simulated moving bed chromatography separation system 5 through the pure water storage tank 15. The separated organic salt phase enters the second buffer tank 6, and acid is added to the second buffer tank 6 through the acid liquor inlet 23 to adjust the pH, and then enters the second nanofiltration membrane filter 7 for treatment. The obtained retentate three is sequentially processed by the first hot concentration tank 8 and the first spray dryer 9, and the product enters the scutellaria flavonoids storage tank 10; the organic phase separated by the simulated moving bed chromatography separation system 5 is processed by the first reverse osmosis membrane filter 11, and the obtained retentate four is sequentially processed by the second hot concentration tank 12 and the second spray dryer 13, and the obtained product enters the scutellaria polysaccharide storage tank 14; the permeate during the treatment of the first nanofiltration membrane filter 3 and the second nanofiltration membrane filter 7 enters the second reverse osmosis membrane filter 16 for concentration, and the obtained retentate five is sequentially processed by the third hot concentration tank 17, the cooling tank 18, the plate and frame filter 19, and the drying tank 20, and the obtained product enters the potassium chloride storage tank 21; the permeate five during the treatment of the second reverse osmosis membrane filter 16 enters the wastewater recovery tank 27.

[0028] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for treating waste liquid from the acidification of scutellaria baicalensis, characterized by: It includes a pretreatment tank, a ceramic membrane filter, a first nanofiltration membrane filter, a first buffer tank, and a simulated moving bed chromatographic separation system; the organic salt phase outlet of the simulated moving bed chromatographic separation system is connected to the second buffer tank, and the second buffer tank is sequentially connected to the second nanofiltration membrane filter, the first hot concentration tank, the first spray dryer, and the scutellaria flavonoid storage tank; the organic phase outlet of the simulated moving bed chromatographic separation system is sequentially connected to the first reverse osmosis membrane filter, the second hot concentration tank, the second spray dryer, and the scutellaria flavonoid storage tank; the permeate outlets of the first nanofiltration membrane filter and the second nanofiltration membrane filter are both connected to the second reverse osmosis membrane filter, and the second reverse osmosis membrane filter is sequentially connected to the third hot concentration tank, the cooling tank, the plate and frame filter, the drying tank, and the potassium chloride storage tank.

2. A treatment device for the waste liquid from the acidification of Scutellaria baicalensis according to claim 1, characterized in that: The pretreatment tank and the first buffer tank are both provided with an alkali solution inlet; the second buffer tank is provided with an acid solution inlet.

3. The device for treating waste liquid from the acidification of Scutellaria baicalensis according to claim 1, wherein: The pretreatment tank, the first heat concentration tank, the second heat concentration tank, the third heat concentration tank, the drying tank and the cooling tank are all provided with jackets, and the jackets are provided with a heat exchange medium inlet and a heat exchange medium outlet.

4. The device for treating waste liquid from the acidification of Scutellaria baicalensis according to claim 1, wherein: The mobile phase inlet of the simulated moving bed chromatographic separation system is connected to a pure water storage tank.

5. The device for treating waste liquid from the acidification of Scutellaria baicalensis according to claim 1, wherein: The permeate outlet of the first reverse osmosis membrane filter is connected to the mobile phase inlet of the simulated moving bed chromatography separation system.

6. The device for treating waste liquid from the acidification of Scutellaria baicalensis according to claim 1, characterized in that: The permeate outlet of the second reverse osmosis membrane filter is connected to a wastewater recovery tank.

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