Device for degrading organic wastewater by using persulfate

Abstract

The utility model is applicable to the technical field of sewage treatment, and provides a device for degrading organic wastewater by persulfate, which comprises two suction pumps, an inlet of one suction pump is connected with a waste liquid storage tank through a liquid inlet connecting pipe, and an outlet of the other suction pump is connected with a treated solution storage tank through a liquid outlet connecting pipe. The two suction pumps are also connected with the reaction column through pipelines; one suction pump is used for pumping out a solution in the waste liquid storage tank, and after the solution is circularly treated by the reaction column, the other suction pump is used for pumping out the treated solution and conveying the treated solution to the treated solution storage tank through the liquid outlet connecting pipe. According to the utility model, the organic wastewater can be continuously treated in a laboratory, the treatment effect is improved, the long-term stable operation can be ensured only by replacing the diaphragm of the reaction column, and the development of small industrial wastewater treatment is well promoted.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a device for degrading organic wastewater with persulfate. Background Art

[0002] With the rapid development of industry, water pollution is becoming an increasingly prominent problem. In particular, the large amount of organic wastewater generated during industrial production, if discharged directly without effective treatment, will pose a serious threat to the environment and ecosystem. Therefore, it is particularly important to develop materials and equipment that can both conveniently and efficiently remove organic dyes from water.

[0003] Traditional organic wastewater treatment devices mostly rely on stirring technology. Especially when using magnetic materials as adsorbents, the adsorbate is prone to adhere to the surface of the stirrer, which not only affects the degradation efficiency, but also makes the stirrer difficult to clean and wastes materials.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a persulfate degradation organic wastewater device to overcome the shortcomings in current practical applications. Utility Model Content

[0005] The utility model aims to provide a persulfate degradation organic wastewater device, aiming to solve the problem that it is difficult to implement persulfate degradation wastewater testing on magnetic samples in existing laboratories.

[0006] The utility model is implemented as follows: a persulfate degradation organic wastewater device comprises two suction pumps, wherein the inlet of one suction pump is connected to a waste liquid storage tank via a liquid inlet connecting pipe, and the outlet of the other suction pump is connected to a treated solution storage tank via a liquid outlet connecting pipe, and the two suction pumps are also connected to a reaction column via a pipeline; one suction pump extracts the solution in the waste liquid storage tank, and after the solution is circulated through the reaction column for treatment, the other suction pump extracts the treated solution and delivers it to the treated solution storage tank via the liquid outlet connecting pipe.

[0007] According to a further technical solution, the suction pump can control flow rate and time.

[0008] A further technical solution is that the reaction column includes an upper reaction column and a lower reaction column, the top of the upper reaction column is provided with an upper solution inlet, and an outlet of the suction pump connected to the liquid inlet connecting pipe is connected to the upper solution inlet through pipeline one; the side of the lower reaction column is provided with a lower solution outlet, and an inlet of the suction pump connected to the liquid outlet connecting pipe is connected to the lower solution outlet through pipeline two; a plurality of small holes in the middle of the reaction column are also provided on the inner sides of the upper reaction column and the lower reaction column; a microporous membrane is also provided between the upper reaction column and the lower reaction column.

[0009] According to a further technical solution, a plurality of connection ports are provided on the outer sides of the upper reaction column and the lower reaction column, and the connection ports of the upper reaction column and the lower reaction column are fixed by screws; a rubber membrane is also provided between the upper reaction column and the lower reaction column.

[0010] The utility model provides a persulfate degradation device for organic wastewater, which has the following beneficial effects:

[0011] The reaction column can provide the effect of placing and storing organic waste liquid with the diaphragm. The organic waste water contacts the diaphragm material and undergoes a chemical reaction, thereby achieving effective degradation of pollutants and circulating the organic waste liquid to be tested. By increasing the capacity of the reaction column and adjusting the pumping rate, the ability to efficiently, quickly and cyclically treat the waste water is achieved.

[0012] The device is easy to operate, low-cost, mature in technology, and simple in structure. It can continuously treat organic wastewater in the laboratory, improving the treatment effect and expanding its scope of application. It only requires replacing the reaction column diaphragm to ensure long-term stable operation, which plays a good role in promoting the development of small-scale industrial wastewater treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a persulfate degradation device for organic wastewater provided in an embodiment of the present utility model;

[0014] Figure 2 A schematic diagram of the structure of a suction pump in a persulfate degradation organic wastewater device provided in an embodiment of the present utility model;

[0015] Figure 3 A schematic structural diagram of a reaction column in a persulfate degradation device for organic wastewater provided by an embodiment of the present invention;

[0016] Figure 4 for Figure 3 Schematic diagram of the main structure;

[0017] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0018] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure along the BB direction.

[0019] In the figure: 1-suction pump, 2-upper reaction column, 3-lower reaction column, 4-connecting port, 5-small hole in the middle of the reaction column, 6-upper solution inlet, 7-lower solution outlet, 8-waste liquid storage tank, 9-treated solution storage tank, 10-liquid inlet connecting pipe, 11-liquid outlet connecting pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0022] like Figure 1-2 As shown, a persulfate degradation organic wastewater device provided by an embodiment of the utility model includes two suction pumps 1, the inlet of one suction pump 1 is connected to the waste liquid storage tank 8 through a liquid inlet connecting pipe 10, and the outlet of the other suction pump 1 is connected to the treated solution storage tank 9 through a liquid outlet connecting pipe 11. The two suction pumps 1 are also connected to the reaction column through pipelines; one suction pump 1 extracts the solution in the waste liquid storage tank 8, and after the solution is circulated through the reaction column, the other suction pump 1 extracts the treated solution and delivers it to the treated solution storage tank 9 through the liquid outlet connecting pipe 11.

[0023] In the persulfate degradation organic wastewater device of this embodiment, the suction pump 1 can control the flow rate and time. The two suction pumps 1 cooperate with each other to make the wastewater to be tested work continuously, thereby realizing the batch circulation treatment capability.

[0024] The persulfate degradation organic wastewater device of this embodiment is used, such as Figure 3-6 As shown, the reaction column includes an upper reaction column 2 and a lower reaction column 3. The top of the upper reaction column 2 is provided with an upper solution inlet 6. The outlet of the suction pump 1 connected to the liquid inlet connecting pipe 10 is connected to the upper solution inlet 6 through a pipeline 1; the side of the lower reaction column 3 is provided with a lower solution outflow outlet 7 to allow the treated solution to flow out, achieving a circulating treatment effect. The inlet of the suction pump 1 connected to the liquid outlet connecting pipe 11 is connected to the lower solution outflow outlet 7 through a pipeline 2. The inner sides of the upper reaction column 2 and the lower reaction column 3 are also provided with a plurality of small holes 5 in the middle of the reaction column to allow the solution to pass through; a microporous membrane is also provided between the upper reaction column 2 and the lower reaction column 3, and the catalytic degradation effect of microporous membranes of different materials can be tested.

[0025] Among them, a plurality of connection ports 4 are opened on the outer sides of the upper reaction column 2 and the lower reaction column 3. The connection ports 4 of the upper reaction column 2 and the lower reaction column 3 are fixed by screws. A rubber membrane (not shown) can be placed between the upper reaction column 2 and the lower reaction column 3 to improve the reliability of the connection.

[0026] Preferably, a liquid receiving column can be arranged at the bottom end of the lower reaction column 3. In this case, the lower solution outflow port 7 is arranged on the side of the liquid receiving column, and the degraded organic dye flows into it and is discharged when a certain amount is reached.

[0027] Based on the above-mentioned persulfate degradation device for organic wastewater, the specific experimental method for degrading wastewater includes the following steps:

[0028] Step 1: First, select a suitable fixed height reaction column;

[0029] Step 2: Place the microporous membrane for placing the material between the upper reaction column 2 and the lower reaction column 3, and then fix the two reaction columns with screws;

[0030] Step 3: Use rubber tubes (i.e., tube 1 and tube 2) to connect the upper solution inlet 6 and the lower solution outlet 7 at the upper and lower ends respectively;

[0031] Step 4: Place the liquid inlet connecting pipe 10 and the liquid outlet connecting pipe 11 in the waste liquid storage tank 8 and the treated solution storage tank 9 respectively;

[0032] Step 5: Pour the waste liquid into the waste liquid storage tank 8, adjust the speed and time of the suction pump 1, and control the speed of the two pumps;

[0033] Step 6: Work continuously within a certain time range, take samples multiple times, and record experimental data;

[0034] Step 7: Repeat the above experiment using microporous membranes of different materials to compare the catalytic degradation effects of microporous membranes of different materials.

[0035] Example: Take an appropriate amount of catalytic material, add an appropriate amount of adhesive and deionized water, mix well, place in an ultrasonic machine for sonication, and then filter onto a microporous filter membrane; after the above operation is completed, the microporous filter membrane with the material is placed between the small holes 5 in the middle of the reaction columns of the two reaction columns and fixed with screws; the liquid inlet and outlet speeds are controlled by adjusting the peristaltic speed of the suction pump 1, and the absorbance of the degraded solution is measured at uniform time intervals. The experimental data of each time period is recorded, and the degradation effect is calculated and compared.

[0036] The above-mentioned embodiment of the present invention provides a persulfate degradation device for organic wastewater. The reaction column can provide the effect of placing a diaphragm and storing organic waste liquid. The organic wastewater contacts the diaphragm material and undergoes a chemical reaction, thereby achieving effective degradation of pollutants and circulating the organic waste liquid to be tested. By increasing the capacity of the reaction column and adjusting the pumping rate, the ability to efficiently, quickly and cyclically treat the wastewater is achieved.

[0037] The device is easy to operate, low-cost, mature in technology, and simple in structure. It can continuously treat organic wastewater in the laboratory, improving the treatment effect and expanding its scope of application. It only requires replacing the reaction column diaphragm to ensure long-term stable operation, which plays a good role in promoting the development of small-scale industrial wastewater treatment.

[0038] There are no specific restrictions on the control, model, and circuit connection of each component, and they can be flexibly configured in actual applications. The circuits, electronic components, and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0039] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A persulfate degradation organic wastewater device, characterized in that: It comprises two suction pumps (1), the inlet of one suction pump (1) is connected to the waste liquid storage tank (8) through a liquid inlet connecting pipe (10), and the outlet of the other suction pump (1) is connected to the treated solution storage tank (9) through a liquid outlet connecting pipe (11); The two suction pumps (1) are also connected to the reaction column via pipelines; One of the suction pumps (1) extracts the solution in the waste liquid storage tank (8), and after the solution is circulated through the reaction column, another suction pump (1) extracts the treated solution and delivers it to the treated solution storage tank (9) through the liquid outlet connecting pipe (11).

2. The persulfate degradation organic wastewater device according to claim 1, characterized in that: The suction pump (1) is capable of controlling flow rate and time.

3. The persulfate degradation organic wastewater device according to claim 1 or 2, characterized in that: The reaction column comprises an upper reaction column (2) and a lower reaction column (3); An upper solution inlet (6) is provided at the top of the upper reaction column (2), and an outlet of the suction pump (1) connected to the liquid inlet connecting pipe (10) is connected to the upper solution inlet (6) via a pipeline 1; A lower solution outlet (7) is provided on the side of the lower reaction column (3), and an inlet of the suction pump (1) connected to the liquid outlet connecting pipe (11) is connected to the lower solution outlet (7) through a second pipeline; A plurality of small holes (5) are also provided on the inner sides of the upper reaction column (2) and the lower reaction column (3); A microporous membrane is also provided between the upper reaction column (2) and the lower reaction column (3).

4. The persulfate degradation organic wastewater device according to claim 3, characterized in that: The outer sides of the upper reaction column (2) and the lower reaction column (3) are both provided with a plurality of connection ports (4), and the connection ports (4) of the upper reaction column (2) and the lower reaction column (3) are fixed by screws; A rubber membrane is also provided between the upper reaction column (2) and the lower reaction column (3).

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