Rapid detection device for external carbon source effect of sewage treatment plant

Abstract

The utility model discloses a sewage treatment plant external carbon source effect rapid detection device which comprises a cabinet body, an inner cavity of the cabinet body is divided into an upper layer and a lower layer, a magnetic stirrer, a recorder and an air pump are installed at the bottom of the inner cavity of the upper layer, a bottle body is installed in a working area of the magnetic stirrer, and three carbon source bottles are installed on the side wall of the inner cavity of the upper layer through a support. The three carbon source bottles are all located above the bottle body, a clear water tank is installed at the bottom of the lower-layer inner cavity, a water pump is installed on the clear water tank, the water inlet end of the water pump extends into the bottom of an inner cavity of the clear water tank through a pipeline, a drawer frame is installed at the top of the lower-layer inner cavity, and a sewage tank is arranged in the drawer frame; according to the device, sewage and sludge are introduced into the bottle body, aeration is performed through the aeration pipe, so that mixed liquid in the bottle body can be filled with itching, the magnetic stirrer and the magnetic stirring rotor are arranged in the bottle body, liquid in the bottle body can be stirred, the uniformity of the mixed liquid in the bottle body is accelerated, and a carbon source medicament can be automatically added into the bottle body by arranging the carbon source bottle.

Description

Technical Field

[0001] The utility model relates to the technical field of external carbon source effect detection, in particular to a device for quickly detecting the effect of an external carbon source in a sewage treatment plant. Background Art

[0002] The sewage admitted by the sewage treatment plant usually has a low C / N ratio. This problem will lead to the inability of the carbon source to meet the demand during the denitrification process of the activated sludge treatment method, and the denitrification, denitrification and phosphorus removal processes are restricted. Therefore, the actual operation of the sewage treatment plant usually requires an external carbon source. The effect of the carbon source directly affects the effect of sewage treatment. The effect of the carbon source usually needs to be tested before the carbon source agent is used. However, there is currently no special equipment on the market to test the effect of the carbon source. The devices for testing the effect of the carbon source are mostly assembled on-site using various experimental equipment. It is troublesome to assemble the equipment during the test, which affects the test efficiency. In addition, the experimenter needs to manually clean the container after the test.

[0003] To this end, we design a rapid detection device for the effect of added carbon source in sewage treatment plants. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art and provide a device for quickly detecting the effect of an added carbon source in a sewage treatment plant, so as to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rapid detection device for the effect of an added carbon source in a sewage treatment plant, comprising a cabinet, wherein the inner cavity of the cabinet is divided into two layers, the bottom of the upper inner cavity is equipped with a magnetic stirrer, a recorder and an air pump, the working area of ​​the magnetic stirrer is equipped with a bottle body, three carbon source bottles are installed on the side wall of the upper inner cavity through a bracket, and the three carbon source bottles are all located above the bottle body, a clean water tank is installed at the bottom of the lower inner cavity, a water pump is installed on the clean water tank, and the water inlet end of the water pump extends into the bottom of the inner cavity of the clean water tank through a pipe, a drawer rack is installed on the top of the lower inner cavity, and a sewage tank is arranged in the drawer rack;

[0006] The top of the bottle body is provided with a drug inlet, a sewage inlet, a sludge inlet, an air hole and a bottle mouth; the bottom drug outlets of the three carbon source bottles are connected to the drug inlet through pipes; the sewage inlet and the sludge inlet are connected to pipes leading to the outside of the cabinet; a bottle cap is installed at the bottle mouth through a thread; an oxygen electrode is installed on the bottle cap; the oxygen electrode is connected to a recorder through a wire; a sewage outlet is opened at the bottom of the bottle body, and the sewage outlet is connected to the top of the box mouth of the sewage tank through a pipe;

[0007] An annular tube and an aeration tube are respectively installed at the top and bottom of the inner cavity of the bottle body. Several nozzles distributed in an annular array are installed at the bottom of the annular tube. The water inlet of the annular tube is arranged outside the bottle body and is connected to the water outlet of the water pump through a pipe. The air inlet of the aeration tube is also arranged outside the bottle body and is connected to the air outlet of the air pump through a pipe. A magnetic stirring rotor is placed at the bottom of the inner cavity of the bottle body.

[0008] Preferably, the bottle body is a transparent PVC bottle, a first valve is installed at the air hole of the bottle body, a second valve is installed at the sewage outlet, a third valve is installed at the sewage inlet, and a fourth valve is installed at the sludge inlet.

[0009] Preferably, the clean water tank and the sewage tank are both transparent PVC water tanks, and a handle is installed in front of the sewage tank.

[0010] Preferably, an upper cabinet door and a lower cabinet door are rotatably mounted on the upper and lower cabinet openings of the cabinet body, respectively, and a glass window is provided on the upper cabinet door.

[0011] Preferably, the nozzles of all the nozzles at the bottom of the annular tube are obliquely downward toward the inner wall of the bottle body.

[0012] Preferably, a fifth valve is installed at the bottom drug outlet of the three carbon source bottles.

[0013] Compared with the existing technology, the utility model provides a rapid detection device for the effect of added carbon source in sewage treatment plants, which has the following beneficial effects:

[0014] 1. This rapid detection device for the effect of an external carbon source in a sewage treatment plant, by passing sewage and sludge into a bottle, and then aerating through an aeration pipe, can make the liquid in the bottle dissolved oxygen. By setting a magnetic stirrer and a magnetic stirring rotor in the bottle, the liquid in the bottle can be stirred to accelerate the dissolved oxygen in the liquid in the bottle. By setting a carbon source bottle, a carbon source agent can be automatically added to the bottle. By setting a recorder in conjunction with an oxygen electrode, the dissolved oxygen value of the liquid in the bottle can be detected and recorded. By comparing the dissolved oxygen values ​​before and after adding the agent, the effect of the added carbon source can be detected.

[0015] 2. The rapid detection device for the effect of the external carbon source in the sewage treatment plant, through the arrangement of a clean water tank, a water pump, a ring pipe and a nozzle, can not only play the role of adding water during the detection, but also play the role of automatically flushing the bottle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cabinet structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the cabinet of the utility model;

[0018] Figure 3 This is a schematic diagram of the bottle structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the bottle body of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the carbon source bottle of the utility model.

[0021] Figure numerals: 1. cabinet; 2. magnetic stirrer; 3. bottle body; 3-1. drug inlet; 3-2. sewage inlet; 3-3. sludge inlet; 3-4. air hole; 3-5. bottle mouth; 3-6. sewage outlet; 4. carbon source bottle; 5. clean water tank; 6. water pump; 7. drawer rack; 8. sewage tank; 9. recorder; 10. air pump; 11. annular tube; 12. aeration tube; 13. bottle cap; 14. oxygen electrode; 15. first valve; 16. second valve; 17. nozzle; 18. magnetic stirring rotor; 19. third valve; 20. fourth valve; 21. fifth valve; 22. upper cabinet door; 23. lower cabinet door. DETAILED DESCRIPTION

[0022] 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 , In this embodiment: A rapid detection device for the effect of an added carbon source in a sewage treatment plant comprises a cabinet 1, the inner cavity of the cabinet 1 is divided into two layers, a magnetic stirrer 2, a recorder 9 and an air pump 10 are installed at the bottom of the upper inner cavity, a bottle body 3 is installed in the working area of ​​the magnetic stirrer 2, three carbon source bottles 4 are installed on the side wall of the upper inner cavity through a bracket, a dosing port is opened on the top of the carbon source bottle 4, the carbon source bottle 4 is used to store the carbon source pharmaceutical solution to be tested, the three carbon source bottles 4 are all located above the bottle body 3, a clean water tank 5 is installed at the bottom of the lower inner cavity, a water pump 6 is installed on the clean water tank 5, the water inlet end of the water pump 6 extends into the bottom of the inner cavity of the clean water tank 5 through a pipe, a drawer rack 7 is installed on the top of the lower inner cavity, and a sewage tank 8 is arranged in the drawer rack 7;

[0024] The top of the bottle body 3 is provided with a drug inlet 3-1, a sewage inlet 3-2, a sludge inlet 3-3, an air hole 3-4 and a bottle mouth 3-5. The bottom drug outlets of the three carbon source bottles 4 are connected to the drug inlet 3-1 through a pipeline. The carbon source agent solution in the carbon source bottle 4 can flow into the bottle body 3 by gravity. The bottom drug outlets of the three carbon source bottles 4 are all installed with a fifth valve 21. The fifth valve 21 adopts an electric flow regulating valve. The dosing speed of the carbon source agent can be adjusted by the fifth valve 21. The sewage inlet 3-2 and the sludge inlet 3-3 are connected to a pipeline leading to the outside of the cabinet 1. Through the pipeline, the carbon source agent solution can be supplied to the bottles. Sewage and sludge are introduced into the bottle body 3, and a bottle cap 13 is installed at the bottle mouth 3-5 through a thread, and a sealing ring is provided between the bottle cap 13 and the bottle mouth 3-5. An oxygen electrode 14 is installed on the bottle cap 13. When the bottle cap 13 is covered on the bottle mouth 3-5, the oxygen electrode 14 will be inserted into the interior of the bottle body 3. The oxygen electrode 14 is used to detect the dissolved oxygen value of the solution in the bottle body 3. The oxygen electrode 14 is connected to the recorder 9 through a wire to record the measured dissolved oxygen value. A sewage outlet 3-6 is opened at the bottom of the bottle body 3, and the sewage outlet 3-6 is connected to the top of the box mouth of the sewage tank 8 through a pipe. The sewage in the bottle body 3 can flow into the sewage tank 8 by gravity;

[0025] An annular tube 11 and an aeration tube 12 are respectively installed at the top and bottom of the inner cavity of the bottle body 3. A number of nozzles 17 distributed in an annular array are installed at the bottom of the annular tube 11. The nozzles of all the nozzles 17 at the bottom of the annular tube 11 are obliquely downward toward the inner wall of the bottle body 3. The water inlet of the annular tube 11 is arranged on the outside of the bottle body 3 and is connected to the water outlet end of the water pump 6 through a pipe. The water in the clean water tank 5 can be pumped into the annular tube 11 through the water pump 6 and sprayed out from the nozzle 17. During testing, the nozzle 17 can add water to the bottle body 3 by spraying water. When cleaning the bottle body 3, the nozzle 17 can rinse the inner wall of the bottle body 3 by spraying water. The air inlet of the aeration tube 12 is also arranged on the outside of the bottle body 3 and is connected to the air outlet end of the air pump 10 through a pipe. A magnetic stirring rotor 18 is placed at the bottom of the inner cavity of the bottle body 3. The magnetic stirrer 2 can drive the magnetic stirring rotor 18 to rotate in the bottle body 3, thereby achieving the effect of stirring the liquid in the bottle body 3.

[0026] The bottle body 3 is a transparent PVC bottle, and a first valve 15 is installed at the air hole 3-4 of the bottle body 3, a second valve 16 is installed at the sewage outlet 3-6, a third valve 19 is installed at the sewage inlet 3-2, and a fourth valve 20 is installed at the sludge inlet 3-3. The first valve 15, the second valve 16, the third valve 19 and the third valve 20 are all solenoid valves. When all the valves are closed, the bottle body 3 is in a sealed state.

[0027] The clean water tank 5 and the sewage tank 8 are both transparent PVC water tanks. A water inlet is provided on the top of the cleaning tank 5, and a cover is provided at the water inlet. The clean water tank 5 is filled with clean water before detection. A handle is installed in front of the sewage tank 8. The sewage tank 8 can be pulled out from the drawer rack 7 to pour out the sewage in the sewage tank 8. When the sewage tank 8 is almost full, the sewage should be poured out in time.

[0028] An upper cabinet door 22 and a lower cabinet door 23 are rotatably mounted on the upper and lower cabinet openings of the cabinet body 1 , respectively. A glass window is provided on the upper cabinet door 22 , through which the situation inside the bottle body 3 can be observed during inspection.

[0029] The working principle and use process of the utility model are as follows: when the rapid detection device for the effect of the added carbon source in the sewage treatment plant is used, three carbon source agent solutions to be tested are added to the three carbon source bottles 4 respectively, the magnetic stirrer 2 is turned on, the magnetic stirring rotor 18 is controlled to rotate and stir at a low speed, sewage and sludge are added to the bottle body 3 from the sewage inlet 3-2 and the sludge inlet 3-3 through the pipeline, the water pump 6 is started to add clean water to the bottle body 3, the air pump 10 is started, and the aeration pipe 12 starts aeration, and aeration is carried out until the dissolved oxygen in the bottle body 3 is the maximum. The oxygen electrode 14 and the recorder 9 detect and record the dissolved oxygen value at this time as D1, and then the aeration is stopped. After T1 minute (5-15 minutes), the dissolved oxygen value at this time is detected and recorded as D2, and then the fifth valve 21 and The air pump 10 adds the carbon source agent solution into the bottle 3 while aerating. The amount of agent added is about 1-10 ml. Slowly aerate until the dissolved oxygen in the bottle 3 is the maximum. Detect and record the dissolved oxygen value at this time as D3, then stop aeration, continuously monitor the dissolved oxygen in the bottle, and record the current dissolved oxygen value as D4 after T2 minutes (5-15 minutes). The formula: Carbon source effect (unit: %) = 1-((D1-D2) / T1) / ((D3-D4) / T2)*100 is used to finally obtain the effect value of the added carbon source. After the test is completed, open the second valve 16 and the water pump 6, rinse the inner wall of the bottle 3, and discharge the sewage into the sewage tank 8. Then use the next carbon source bottle to repeat the above operation, respectively detect the effects of the carbon sources in the three carbon source bottles, and compare the effects.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A rapid detection device for the effect of an external carbon source in a sewage treatment plant, comprising a cabinet (1), characterized in that: The inner cavity of the cabinet (1) is divided into two layers, the upper and lower layers. A magnetic stirrer (2), a recorder (9) and an air pump (10) are installed at the bottom of the upper inner cavity. A bottle body (3) is installed in the working area of ​​the magnetic stirrer (2). Three carbon source bottles (4) are installed on the side wall of the upper inner cavity through a bracket. The three carbon source bottles (4) are all located above the bottle body (3). A clean water tank (5) is installed at the bottom of the lower inner cavity. A water pump (6) is installed on the clean water tank (5). The water inlet end of the water pump (6) extends into the bottom of the inner cavity of the clean water tank (5) through a pipe. A drawer rack (7) is installed on the top of the lower inner cavity. A sewage tank (8) is provided in the drawer rack (7). The top of the bottle body (3) is provided with a drug inlet (3-1), a sewage inlet (3-2), a sludge inlet (3-3), an air hole (3-4) and a bottle mouth (3-5); the bottom drug outlets of the three carbon source bottles (4) are connected to the drug inlet (3-1) through a pipe; the sewage inlet (3-2) and the sludge inlet (3-3) are connected to a pipe leading to the outside of the cabinet (1); a bottle cap (13) is installed at the bottle mouth (3-5) through a thread; an oxygen electrode (14) is installed on the bottle cap (13); the oxygen electrode (14) is connected to the recorder (9) through a wire; a sewage outlet (3-6) is provided at the bottom of the bottle body (3); the sewage outlet (3-6) is connected to the top of the box mouth of the sewage tank (8) through a pipe; An annular tube (11) and an aeration tube (12) are respectively installed at the top and bottom of the inner cavity of the bottle body (3); a plurality of nozzles (17) distributed in an annular array are installed at the bottom of the annular tube (11); a water inlet of the annular tube (11) is arranged outside the bottle body (3) and is connected to the water outlet of the water pump (6) through a pipeline; an air inlet of the aeration tube (12) is also arranged outside the bottle body (3) and is connected to the air outlet of the air pump (10) through a pipeline; a magnetic stirring rotor (18) is placed at the bottom of the inner cavity of the bottle body (3).

2. A rapid detection device for the effect of an added carbon source in a sewage treatment plant according to claim 1, characterized in that: The bottle body (3) is a transparent PVC bottle. A first valve (15) is installed at the air hole (3-4) of the bottle body (3), a second valve (16) is installed at the sewage outlet (3-6), a third valve (19) is installed at the sewage inlet (3-2), and a fourth valve (20) is installed at the sludge inlet (3-3).

3. A rapid detection device for the effect of an added carbon source in a sewage treatment plant according to claim 1, characterized in that: The clean water tank (5) and the sewage tank (8) are both made of transparent PVC water tanks, and a handle is installed on the front of the sewage tank (8).

4. A rapid detection device for the effect of an added carbon source in a sewage treatment plant according to claim 1, characterized in that: An upper cabinet door (22) and a lower cabinet door (23) are rotatably mounted on the upper and lower cabinet openings of the cabinet body (1), respectively, and a glass window is provided on the upper cabinet door (22).

5. A rapid detection device for the effect of an added carbon source in a sewage treatment plant according to claim 1, characterized in that: The nozzles of all the nozzles (17) at the bottom of the annular tube (11) are all obliquely downward toward the inner wall of the bottle body (3).

6. A rapid detection device for the effect of an added carbon source in a sewage treatment plant according to claim 1, characterized in that: A fifth valve (21) is installed at the bottom drug outlet of each of the three carbon source bottles (4).

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