Dynamic circulating purification method and device for underground water polluted by organic matters

Abstract

The invention discloses a dynamic circulating purification method and device for underground water polluted by organic matters, and relates to the technical field of organic pollutant purification, the dynamic circulating purification device comprises a sedimentation tank, a sewage inlet tank is arranged above the sedimentation tank, a sedimentation tank is arranged below the sedimentation tank, and a blow-off pipe is arranged at the bottom of the sedimentation tank; the guide plate and the sealing plate are fixedly connected at a certain angle, the guide plate and the sealing plate uniformly rotate on the inner wall of the settling pond, the guide plate is used for guiding sewage, and the sewage in the settling pond can be layered in the settling pond by rotating the sealing plate, so that organic matters settled at the bottom of the settling pond can be more effectively extracted; according to the scheme, the density difference of different components of sewage is utilized, high-concentration pollutants are settled to the bottom under the action of gravity, and relatively clear upper-layer water is positioned at the top, so that the two parts can be quickly and effectively separated, sludge at the bottom is prevented from being remixed with the upper-layer water, and the stability of the treatment effect is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of purification of organic pollutants, and particularly to a dynamic circulation purification method and device for groundwater polluted by organic substances. Background Art

[0002] Sewage refers to wastewater contaminated to a certain extent and coming from life and production. Since this water contains various organic substances, inorganic substances, microorganisms and harmful substances, if directly discharged without effective treatment, it will cause serious impacts on the environment, such as polluting water sources, destroying the ecological balance, and endangering human health.

[0003] Some existing organic pollutants are partially soluble in water and tend to deposit at the bottom of the aquifer. When oxidizing and decomposing these pollutants, since the pollutants are mainly concentrated at the bottom of the water layer, when attempting to pump out the sewage in this area, disturbances will inevitably occur, causing the sewage and the pollutants in it to be redispersed in the water body. This dispersion phenomenon increases the difficulty of performing in-depth redox treatment on the sewage.

[0004] In addition, in the existing sewage treatment process, the addition of chemical agents or biological agents is usually completed by means of pipeline transportation. However, this addition method is prone to cause local accumulation of the drugs in the sewage, which not only increases the load of mechanical stirring, but also makes it difficult to ensure the full mixing and reaction of the drugs with the sewage, thereby affecting the treatment effect.

[0005] Therefore, a dynamic circulation purification method and device for groundwater polluted by organic substances are proposed to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to provide a dynamic circulation purification method and device for groundwater polluted by organic substances to solve the problems in the background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A dynamic circulation purification method for groundwater polluted by organic substances, including

[0008] S1. First, introduce the sewage into the upper area of the sedimentation tank, and through the preliminary filtration of the filter screen here, effectively remove the suspended substances and insoluble impurities on the surface of the sewage;

[0009] S2. The sewage filtered by S1 flows into the bottom of the sedimentation tank through the guiding action of the guiding plate for sedimentation, so that the organic substances dissolved in the sewage are deposited at the bottom of the aquifer;

[0010] S3. Stratify the organic matter deposited at the bottom of the sedimentation tank. Start to stratify the water in the sedimentation tank through the diversion and stratification isolation mechanism, so that the water at the bottom of the sedimentation tank can pump the highly concentrated organic sewage stratified at the bottom of the sedimentation tank into the purification tank through the sewage discharge pipe for in-depth treatment by a pressure pump.

[0011] S4. According to the specific proportion of the sewage, add an appropriate amount of chemical agent or biological agent to the purification tank of the in-depth treatment device. Through the rotation of the turbine of the stirring device, drive the sewage to be fully stirred and mixed in the purification tank of the in-depth treatment device. At the same time, the rotation of the turbine of the stirring device will also drive the medicine spraying nozzle to vibrate, which can prevent the biofilm from adhering to the medicine spraying nozzle and causing blockage.

[0012] Preferably, when the sewage is stratified in the sedimentation tank, the sediment deposited at this time will gradually settle to the bottom of the sedimentation tank. The sediment accumulation amount can be detected in real time through the sensor installed at the bottom of the sedimentation tank. When the sediment accumulation exceeds the threshold, the sediment removal mechanism is started at this time to discharge the sediment through the sewage outlet.

[0013] A dynamic circulation purification device for groundwater polluted by organic matter, including a sedimentation tank. A sewage inlet tank is provided above the sedimentation tank, a sedimentation tank is provided below the sedimentation tank, a sewage discharge pipe is installed at the bottom of the sedimentation tank, and a purification tank is provided at one end of the sewage discharge pipe away from the sedimentation tank. A dynamic circulation purification device for groundwater polluted by organic matter also includes a diversion and stratification isolation mechanism and a sediment removal mechanism.

[0014] The diversion and stratification isolation mechanism is arranged in the middle of the sedimentation tank, and the diversion and stratification isolation mechanism is used for the diversion and stratification of sewage.

[0015] The sediment removal mechanism is arranged in the sedimentation tank, and the sediment removal mechanism is used for the collection and cleaning of sewage impurities precipitation.

[0016] The dynamic purification and mixing mechanism is arranged in the purification tank, and the dynamic purification and mixing mechanism is used for the uniform purification of sewage.

[0017] Preferably, the diversion and stratification isolation mechanism includes a filter screen. The filter screen is installed on the inner wall of the sedimentation tank near the lower part of the sewage inlet tank. Guide plates are evenly rotatably connected below the filter screen of the sedimentation tank. A sealing plate is fixedly connected to the guide plates. One end of the connection between the guide plate and the sealing plate is fixedly connected with a push plate.

[0018] Preferably, a triangular plate is slidably connected to the outer surface of the sedimentation tank. A guide groove is opened on the triangular plate. One end of the push plate away from the guide plate is slidably connected in the guide groove. One side of the triangular plate away from the sedimentation tank is fixedly connected with an electric telescopic rod, and the electric telescopic rod is installed on the sedimentation tank.

[0019] Preferably, the precipitation and impurity removal mechanism includes a turbine flow-pushing shaft rotatably connected in a precipitation tank. An electric motor is installed outside the precipitation tank, and the driving shaft of the electric motor is fixedly connected to one end of the turbine flow-pushing shaft. A sliding disk is arranged at the end of the turbine flow-pushing shaft away from the driving shaft of the electric motor, and the sliding disk is slidably connected to the inner wall of the precipitation tank.

[0020] Preferably, a compression spring is fixedly connected to the side of the sliding disk away from the turbine flow-pushing shaft. One end of the compression spring away from the sliding disk is fixedly connected in the precipitation tank. A sewage discharge port is opened at the bottom of the precipitation tank. A sewage separation plate is slidably connected above the sewage discharge port on the inner wall of the precipitation tank, and the sewage separation plate is fixedly connected to the sliding disk.

[0021] Preferably, the dynamic purification and mixing mechanism includes a turbine installed on the inner wall of a purification tank. A stirring shaft is fixedly connected to the lower surface of the middle of the turbine. Flow guide holes are evenly arranged on the stirring shaft for accelerating the stirring and flowing of sewage. A linkage plate is fixedly connected to the outer surface of the axis of the stirring shaft. Inclined extrusion blocks are arranged at both ends of the linkage plate. Multiple nozzle guide plates are evenly slidably connected to the inner wall of the purification tank, and liquid spraying valves are evenly installed in the multiple nozzle guide plates.

[0022] Preferably, a conduit is fixedly communicated with the liquid spraying valve. An angled block is fixedly connected to the upper end of the multiple nozzle guide plates. Reset springs are symmetrically fixedly connected to the lower end of the multiple nozzle guide plates. One end of the reset spring away from the multiple nozzle guide plates is fixedly connected to a limit plate, and the limit plate is fixedly connected to the inner wall of the purification tank. The conduit is fixedly communicated with a medicine feeding pipe.

[0023] Compared with the prior art, the present invention provides a dynamic circulation purification method and device for groundwater polluted by organic matter, having the following beneficial effects:

[0024] 1. The flow guide plate and the sealing plate are fixedly connected at a certain angle, and the flow guide plate and the sealing plate rotate evenly on the inner wall of the sedimentation tank. The flow guide plate is used for guiding sewage. By rotating the sealing plate, the sewage in the sedimentation tank can be stratified in the sedimentation tank, so that the organic matter deposited at the bottom of the sedimentation tank can be more effectively extracted. This scheme utilizes the density difference of different components of sewage. Through the action of gravity, the high-concentration pollutants settle to the bottom, while the relatively clear upper water is located at the top. The two parts can be quickly and effectively separated to prevent the bottom sludge from remixing with the upper clear water and maintain the stability of the treatment effect.

[0025] 2. Compared with the traditional setting, this scheme adopts the separation of water layers. By concentrating and extracting the high-concentration pollutants, it is not only convenient for subsequent in-depth treatment, reduces the treatment difficulty and cost, but also can significantly improve the water quality of the effluent by removing the bottom pollutants, so that it meets the discharge standard or the reuse requirement.

[0026] 3. In this solution, the impact of sewage synchronously drives the rotation of the stirring shaft and drives the multi-nozzle guide plate to reciprocate along the inner wall of the purification tank. Under the sliding action of the purification tank, chemical agents or biological agents can be dynamically added at different heights in the purification tank. Compared with the traditional method of adding chemical agents or biological agents, by dynamically adding chemical agents or biological agents at different heights in this solution, the chemical agents or biological agents can be more evenly dispersed in the sewage. By adding chemical agents or biological agents at different heights, it can adapt to sewage with different concentrations and properties, making the treatment process more flexible and efficient. Thus, it can accelerate the more sufficient contact and reaction between chemical agents or biological agents and pollutants, thereby improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0028] Figure 2 is a schematic auxiliary three-dimensional structure diagram of the present invention;

[0029] Figure 3 is a schematic diagram of the structural connection relationship of the diversion and layered isolation mechanism of the present invention;

[0030] Figure 4 is of the present invention Figure 3 enlarged view at A in;

[0031] Figure 5 is a schematic diagram of the structural connection relationship of the sedimentation and impurity removal mechanism of the present invention;

[0032] Figure 6 is a schematic diagram of the structural connection relationship of the dynamic purification and mixing mechanism of the present invention;

[0033] Figure 7 is of the present invention Figure 6 enlarged view at B in.

[0034] In the figure:

[0035] 1. Sedimentation tank; 11. Sewage inlet trough; 12. Sedimentation trough; 13. Drain pipe; 14. Purification tank;

[0036] 2. Diversion and layered isolation mechanism; 21. Filter screen; 22. Diversion plate; 23. Pushing plate; 24. Triangular plate; 25. Guide groove; 26. Electric telescopic rod; 27. Sealing plate;

[0037] 3. Sedimentation and impurity removal mechanism; 31. Turbine flow-pushing shaft; 32. Sliding disk; 33. Compression spring; 34. Pollutant isolation plate; 35. Drain port;

[0038] 4. Dynamic purification mixing mechanism; 41. Turbine; 42. Stirring shaft; 43. Linkage plate; 44. Bevel block; 45. Multi-nozzle guide plate; 46. Limiting plate; 47. Return spring; 48. Conduit. Detailed implementation mode

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0040] The present invention will be further described in detail below according to the drawings and embodiments.

[0041] For the first embodiment, please refer to Figures 1 to 7 as shown:

[0042] To solve the problems mentioned in the technical solution, the embodiment of the present application provides a dynamic circulation purification device for groundwater polluted by organic matter, including a sedimentation tank 1. A sewage inlet trough 11 is opened above the sedimentation tank 1, a sedimentation trough 12 is opened below the sedimentation tank 1, a sewage discharge pipe 13 is installed at the bottom of the sedimentation trough 12, and a purification tank 14 is arranged at one end of the sewage discharge pipe 13 away from the sedimentation tank 1. It also includes a diversion and stratification isolation mechanism 2 and a sedimentation and impurity removal mechanism 3;

[0043] The diversion and stratification isolation mechanism 2 is arranged in the middle of the sedimentation tank 1, and the diversion and stratification isolation mechanism 2 is used for the diversion and stratification of sewage;

[0044] The sedimentation and impurity removal mechanism 3 is arranged in the sedimentation trough 12, and the sedimentation and impurity removal mechanism 3 is used for the collection and cleaning of sewage impurities;

[0045] The dynamic purification mixing mechanism 4 is arranged in the purification tank 14, and the dynamic purification mixing mechanism 4 is used for the uniform purification of sewage;

[0046] Specifically, as Figures 3 to 5 shown, the filter screen 21 is installed on the inner wall of the sedimentation tank 1 near the lower part of the sewage inlet trough 11. The diversion plates 22 are evenly rotatably connected below the filter screen 21 of the sedimentation tank 1. A sealing plate 27 is fixedly connected to the diversion plates 22, and a push plate 23 is fixedly connected to one end of the connection between the diversion plates 22 and the sealing plate 27;

[0047] Among them, the diversion plates 22 and the sealing plate 27 are fixedly connected at a certain angle, and the diversion plates 22 and the sealing plate 27 are evenly rotated on the inner wall of the sedimentation tank 1. The diversion plates 22 are used for the diversion of sewage. By rotating the sealing plate 27, the sewage in the sedimentation tank 1 can be stratified in the sedimentation tank 1, so that the organic matter deposited at the bottom of the sedimentation tank 1 can be more effectively extracted;

[0048] Further, a triangular plate 24 is slidably connected to the outer surface of the sedimentation tank 1. A guiding groove 25 is formed in the triangular plate 24. One end of the pushing plate 23 away from the guiding plate 22 is slidably connected in the guiding groove 25. One side of the triangular plate 24 away from the sedimentation tank 1 is fixedly connected with an electric telescopic rod 26, and the electric telescopic rod 26 is installed on the sedimentation tank 1;

[0049] By extending the electric telescopic rod 26, the rotation angles of the guiding plate 22 and the sealing plate 27 can be synchronously controlled. Not only can the guiding of the sewage by the guiding plate 22 be controlled, but also the sewage can quickly flow into the bottom of the sedimentation tank 1 under the guiding of the guiding plate 22 for sedimentation, preventing the dispersion of organic matter at the bottom of the sedimentation tank 1 caused by water flow impact.

[0050] Specifically, as Figure 5 shown, the turbine flow-pushing shaft 31 is rotatably connected in the sedimentation tank 12. A motor is installed outside the sedimentation tank 12, and the driving shaft of the motor is fixedly connected to one end of the turbine flow-pushing shaft 31. A sliding disk 32 is arranged at one end of the turbine flow-pushing shaft 31 away from the driving shaft of the motor, and the sliding disk 32 is slidably connected to the inner wall of the sedimentation tank 12;

[0051] Among them, a sludge detection sensor is installed at the bottom of the sedimentation tank 12 for detecting the accumulation state of sludge at the bottom of the sedimentation tank 12. When the sensor detects that the sludge accumulation at the bottom of the sedimentation tank 12 is higher than the threshold, the motor installed at the bottom of the sedimentation tank 12 is started through the sensor, so that the sludge at the bottom of the sedimentation tank 12 is discharged through the sewage outlet 35 under the rotation of the turbine flow-pushing shaft 31.

[0052] One side of the sliding disk 32 away from the turbine flow-pushing shaft 31 is fixedly connected with a compression spring 33. One end of the compression spring 33 away from the sliding disk 32 is fixedly connected in the sedimentation tank 12. A sewage outlet 35 is formed at the bottom of the sedimentation tank 12. A sewage separation plate 34 is slidably connected above the sewage outlet 35 on the inner wall of the sedimentation tank 12, and the sewage separation plate 34 is fixedly connected to the sliding disk 32;

[0053] Among them, the sewage separation plate 34 is fixedly connected to the bottom of the sliding disk 32, and the sewage separation plate 34 is in sliding fit with the inner wall of the sedimentation tank 12, with good sealing performance.

[0054] Specifically, a turbine 41 is installed on the inner wall of the purification tank 14. A stirring shaft 42 is fixedly connected to the lower surface of the middle part of the turbine 41. Flow guiding holes are uniformly formed in the stirring shaft 42 for accelerating the stirring and flowing of the sewage. A linkage plate 43 is fixedly connected to the outer surface of the axis of the stirring shaft 42. Inclined surface extrusion blocks are arranged at both ends of the linkage plate 43. Multiple nozzle guide plates 45 are uniformly slidably connected to the inner wall of the purification tank 14, and liquid spraying valves are uniformly installed in the multiple nozzle guide plates 45;

[0055] Among them, diversion holes are evenly distributed on the surface of the sliding disk 32. When the stirring shaft 42 rotates, these diversion holes can quickly exert a squeezing effect on the sewage, prompting it to flow. This squeezing effect accelerates the local water flow velocity, thereby enhancing the dispersibility of the sewage and ensuring that the sewage can be more fully mixed with chemical agents or biological agents.

[0056] A conduit 48 is fixedly connected to the liquid spraying valve. An angled block 44 is fixedly connected to the upper end of the multi-nozzle guide plate 45. Symmetrically, a return spring 47 is fixedly connected to the lower end of the multi-nozzle guide plate 45. One end of the return spring 47 away from the multi-nozzle guide plate 45 is fixedly connected to a limit plate 46. The limit plate 46 is fixedly connected to the inner wall of the purification tank 14. The conduit 48 is fixedly connected to the medicine supply pipe.

[0057] Among them, the sedimentation tank 1 generates a certain negative pressure through a booster pump, so that the sewage deposited at the bottom of the sedimentation tank 1 flows through the sewage discharge pipe 13 and is guided into the upper part of the purification tank 14. And the sewage discharge pipe 13 forms a certain angle with the blade surface of the turbine 41. The sewage can drive the turbine 41 to rotate in the purification tank 14 through scouring. At the same time, the sewage with a certain flow velocity can be more evenly dispersed in the purification tank 14.

[0058] In this solution, the impact of the sewage synchronously drives the rotation of the stirring shaft 42 and at the same time drives the multi-nozzle guide plate 45 to reciprocate on the inner wall of the purification tank 14. Under the sliding action of the purification tank 14, chemical agents or biological agents can be dynamically added at different heights in the purification tank 14. Compared with the traditional method of adding chemical agents or biological agents, in this solution, by dynamically adding chemical agents or biological agents at different heights, the chemical agents or biological agents can be more evenly dispersed in the sewage. By adding chemical agents or biological agents at different heights, it can adapt to sewage with different concentrations and different properties, making the treatment process more flexible and efficient. Thus, it can accelerate the more sufficient contact and reaction between chemical agents or biological agents and pollutants, thereby improving the treatment effect.

[0059] The second embodiment, a dynamic circulation purification method for groundwater polluted by organic matter, includes:

[0060] S1. First, introduce the sewage into the upper area of the sedimentation tank 1. Here, through the preliminary filtration of the filter screen 21, the suspended matter and insoluble impurities on the surface of the sewage are effectively removed.

[0061] S2. The sewage filtered by S1 flows into the bottom of the sedimentation tank 1 through the guiding action of the guiding plate 22 for sedimentation, so that the organic matter dissolved in the sewage is deposited at the bottom of the aquifer.

[0062] S3. Stratify the organic matter precipitated at the bottom of sedimentation tank 1. Start to stratify the water in sedimentation tank 1 through the diversion and stratification isolation mechanism 2, so that the water at the bottom of sedimentation tank 1 can pump the highly concentrated organic sewage stratified at the bottom of sedimentation tank 1 into purification tank 14 through sewage discharge pipe 13 for in-depth treatment;

[0063] S4. According to the specific proportion of the sewage, add an appropriate amount of chemical agent or biological agent to purification tank 14 of the in-depth treatment device. Through the rotation of the turbine 41 of the stirring device, drive the sewage to be fully stirred and mixed in purification tank 14 of the in-depth treatment device. At the same time, the rotation of the turbine 41 of the stirring device will also drive the medicine spraying nozzle to vibrate, which can prevent the biofilm from attaching to the medicine spraying nozzle and causing blockage.

[0064] The specific implementation process is as follows:

[0065] The sewage enters the top of sedimentation tank 1 through the lift pump, and the flowmeter monitors the inlet rate, and the water flow is set at 5m 3 / h.

[0066] Intercept suspended matter ≥1mm through the filter screen 21 grille. The scum collector is manually cleaned automatically every 2 hours. After filtration, the sewage enters the diversion area through the guide plate 22, and the pH sensor monitors the water quality in real time, with the target pH of 6.5 - 7.5.

[0067] Stage 2: Sedimentation and stratification S Diversion and stratification isolation mechanism 2 S3.

[0068] The guide plate 22 guides the water flow to enter the sedimentation area in a laminar flow state, and the hydraulic retention time ≥4 hours.

[0069] When the sludge layer thickness detected by ultrasonic reaches 30cm, start the sludge scraper for mud-water separation.

[0070] The specific operation is as follows:

[0071] First, the ultrasonic detection sensor starts through the motor installed at the bottom of sedimentation tank 12. Through the rotation of the motor, the turbine pusher shaft 31 will be driven to rotate synchronously. Through the rotation of the turbine pusher shaft 31, the sediment at the bottom of sedimentation tank 12 will be gathered towards the sewage outlet of sedimentation tank 12. As Figure 5 shown, at this time, under the gradual extrusion of the sediment on the sliding plate 32, the sliding plate 32 will be driven to push the compression spring 33 to undergo compression deformation. At this time, the sliding of the sliding plate 32 will drive the sewage isolation plate 34 to open on the sewage outlet 35, and at this time, the sediment will be discharged through the sewage outlet 35.

[0072] At this time, after the sewage has been sedimented, after the set sedimentation time, it is controlled by the controller as Figure 4The electric telescopic rod 26 shown is stretched. At this time, when pushed upward by the electric telescopic rod 26, it will drive the triangular plate 24 to slide upward synchronously on the outer surface of the sedimentation tank 1. At this time, the extrusion of the push plate 23 by the guide groove 25 will drive the push plate 23 to rotate counterclockwise around the connection between the diversion plate 22 and the sedimentation tank 1. At this time, when the sealing plates 27 are closed with each other, the electric telescopic rod 26 is controlled by the sensor to stop running. At this time, the sewage in the sedimentation tank 1 is stratified through the sealing plates 27, so that the pollutants precipitated at the bottom of the sedimentation tank 1 can be more effectively pumped into the purification tank 14 through the sewage discharge pipe 13 for in-depth treatment.

[0073] The pressure pump starts and stops automatically according to the sludge concentration set value > 5000mg / L, and conveys the high-concentration organic sludge to the purification tank 14.

[0074] Stage 3: In-depth treatment S4.

[0075] The chemical agent or biological agent system is dosed according to the proportion of COD or the concentration of specific organic pollutants, and 0.5L of composite agent is dosed per 100mg / L.

[0076] Start the turbine 41 to rotate, and set 150rpm to synchronously trigger the high-frequency vibration frequency of the spray nozzle to be 50Hz;

[0077] The multi-parameter probes DO and ORP regulate the aeration volume in real time to maintain the dissolved oxygen > 2mg / L;

[0078] After the treatment reaches the standard, the clear water is discharged through the overflow port, and the sludge return ratio is 20%-30%;

[0079] The specific stirring process is as follows:

[0080] At this time, when started by the turbine 41, it will drive the stirring shaft 42 to start stirring the sewage in the purification tank 14 synchronously. At this time, the chemical agent or biological agent is evenly sprayed into the purification tank 14 through the nozzles in the multi-nozzle guide plate 45, as Figure 6 and Figure 7As shown, when the linkage plate 43 rotates, it will squeeze the bevel block 44. Through the extrusion of the bevel block 44, the multi-nozzle guide plate 45 will be driven to slide downward on the inner wall of the purification tank 14. And through the continuous extrusion of the linkage plate 43, the multi-nozzle guide plate 45 can be driven to reciprocate on the inner wall of the purification tank 14. Thus, it can realize stirring while dynamically adding chemical agents or biological agents to the sewage, which can not only prevent the nozzle from being blocked. In this scheme, the impact of the sewage synchronously drives the stirring shaft 42 to rotate and at the same time drives the multi-nozzle guide plate 45 to reciprocate on the inner wall of the purification tank 14. Under the sliding action of the purification tank 14, the chemical agents or biological agents can be dynamically added at different heights in the purification tank 14. Compared with the traditional way of adding chemical agents or biological agents, this scheme can make the chemical agents or biological agents more evenly dispersed in the sewage by dynamically adding chemical agents or biological agents at different heights. By adding chemical agents or biological agents at different heights, it can adapt to sewage with different concentrations and properties, making the treatment process more flexible and efficient. Thus, it can accelerate the more sufficient contact and reaction between chemical agents or biological agents and pollutants, thereby improving the treatment effect.

[0081] Among them, the spray nozzles adopt PTFE coating, and the vibration amplitude can be adjusted to 0.11 mm;

[0082] Energy recovery: The gas production rate of the biogas collection system in the sedimentation area is 0.3 m 3 / kg COD;

[0083] Intelligent control: The SCADA system integrates machine learning algorithms, and the prediction error of the dosage of chemical agents or biological agents can be <5%.

[0084] In this scheme, when the stratified and relatively concentrated area at the bottom of the sedimentation tank 1 is diverted through the sewage discharge pipe 13 to the purification tank 14 for the catalytic reaction of the agent, the treated and qualified sewage is discharged through the bottom pipe of the purification tank 14. At the same time, this scheme can treat the slightly polluted water above the stratification of the sedimentation tank 1 in two ways:

[0085] The first treatment scheme is as follows:

[0086] This scheme can symmetrically add purification tanks 14 on both sides of the sedimentation tank 1. One purification tank 14 on one side of the sedimentation tank 1 can be used for the agent reaction treatment of the heavily polluted sewage at the bottom of the sedimentation tank 1, and the purification tank 14 on the other side of the sedimentation tank 1 can be used for treating the slightly polluted sewage in the sedimentation tank 1;

[0087] The second treatment scheme is as follows:

[0088] This scheme can also be as Figure 1As shown, a purification tank 14 is arranged on one side of the sedimentation tank 1 for step-by-step purification. First, the sewage in the sedimentation tank 1 is stratified, and the sewage in the thicker area at the bottom of the sedimentation tank 1 is drawn and discharged into the purification tank 14 through the sewage discharge pipe 13 for the reaction of sewage and medicine. After the reaction is completed, the qualified sewage can be discharged. Then, the remaining sewage with less pollution in the sedimentation tank 1 is drawn into the purification tank 14 again for the medicine mixing reaction.

[0089] This solution realizes the modular and automated operation of the sewage treatment process through the organic combination of mechanical physical treatment and biochemical treatment, and is particularly suitable for the treatment scenarios of medium and high-concentration organic wastewater such as food processing and slaughter wastewater. The system can quickly adjust the operation parameters through the HMI interface according to the actual water quality to ensure the balance of treatment efficiency and economic benefits.

[0090] Please refer to the above working process Figures 1 to 7

[0091] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the said element.

[0092] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for the dynamic circulation purification of groundwater contaminated by organic matter, characterized in that: include S1, firstly, the sewage is introduced into the upper area of ​​the sedimentation tank (1), where the suspended matter and insoluble impurities on the sewage surface are effectively removed through the preliminary filtering effect of the filter screen (21); S2, the sewage filtered by S1 flows into the bottom of the sedimentation tank (1) through the diversion effect of the guide plate (22) for sedimentation, so that the organic matter dissolved in water in the sewage is deposited at the bottom of the aquifer; S3, stratifying the organic matter deposited at the bottom of the sedimentation tank (1), starting the diversion stratification isolation mechanism (2) to stratify the water in the sedimentation tank (1), so that the water at the bottom of the sedimentation tank (1) can be pumped out by a pressure pump through a sewage pipe (13) to a purification tank (14) for deep treatment. S4, according to the specific proportion of the sewage, add an appropriate amount of chemical agents or biological agents to the deep treatment device purification tank (14), and drive the sewage to be fully stirred and mixed in the deep treatment device purification tank (14) through the rotation of the stirring device turbine (41). At the same time, the rotation of the stirring device turbine (41) will also drive the spray nozzle to vibrate, which can prevent the biofilm from adhering to the spray nozzle and causing blockage.

2. The method for dynamic circulation purification of groundwater contaminated by organic matter according to claim 1, characterized in that: When sewage is stratified in the sedimentation tank (1), the sediment deposited will gradually settle to the bottom of the sedimentation tank (12). The amount of sediment accumulation can be detected in real time by a sensor installed at the bottom of the sedimentation tank (12). When the sediment accumulation exceeds a threshold, the sedimentation and impurity removal mechanism (3) is activated to discharge the sediment through the sewage outlet (35).

3. A dynamic circulation purification device for groundwater contaminated by organic matter, applicable to the dynamic circulation purification method for groundwater contaminated by organic matter as described in any one of claims 1-2, characterized in that: The invention comprises a sedimentation tank (1), wherein a sewage inlet trough (11) is provided above the sedimentation tank (1), a sedimentation tank (12) is provided below the sedimentation tank (1), a sewage discharge pipe (13) is installed at the bottom of the sedimentation tank (12), and a purification tank (14) is provided at one end of the sewage discharge pipe (13) away from the sedimentation tank (1). The dynamic circulation purification device for groundwater polluted by organic matter also comprises a diversion stratification isolation mechanism (2), a sedimentation and impurity removal mechanism (3) and a dynamic purification mixing mechanism (4); The diversion and stratification isolation mechanism (2) is arranged in the middle of the sedimentation tank (1), and the diversion and stratification isolation mechanism (2) is used for diverting and stratifying sewage; The sedimentation and impurity removal mechanism (3) is arranged in the sedimentation tank (12), and the sedimentation and impurity removal mechanism (3) is used to collect and clean the impurity precipitation in the sewage; The dynamic purification mixing mechanism (4) is arranged in a purification tank (14), and the dynamic purification mixing mechanism (4) is used for uniform purification of sewage.

4. The dynamic circulation purification device for groundwater contaminated by organic matter according to claim 3 is characterized by: The diversion layered isolation mechanism (2) comprises a filter screen (21), the filter screen (21) is installed on the inner wall of the sedimentation tank (1) below the sewage inlet trough (11), the sedimentation tank (1) is evenly rotatably connected to a guide plate (22) below the filter screen (21), the guide plate (22) is fixedly connected to a sealing plate (27), and one end of the connection between the guide plate (22) and the sealing plate (27) is fixedly connected to a push plate (23).

5. The dynamic circulation purification device for groundwater contaminated by organic matter according to claim 4 is characterized by: The outer surface of the sedimentation tank (1) is slidably connected to a triangular plate (24), a guide groove (25) is provided on the triangular plate (24), one end of the push plate (23) away from the guide plate (22) is slidably connected in the guide groove (25), and the side of the triangular plate (24) away from the sedimentation tank (1) is fixedly connected to an electric telescopic rod (26), and the electric telescopic rod (26) is installed on the sedimentation tank (1).

6. The dynamic circulation purification device for groundwater contaminated by organic matter according to claim 3 is characterized by: The sedimentation and impurity removal mechanism (3) comprises a turbine flow-propelling shaft (31), the turbine flow-propelling shaft (31) is rotatably connected in the sedimentation tank (12), a motor is installed outside the sedimentation tank (12), and the motor drive shaft is fixedly connected to one end of the turbine flow-propelling shaft (31), and a sliding plate (32) is arranged at one end of the turbine flow-propelling shaft (31) away from the motor drive shaft, and the sliding plate (32) is slidably connected to the inner wall of the sedimentation tank (12).

7. The dynamic circulation purification device for groundwater contaminated by organic matter according to claim 6 is characterized by: The sliding plate (32) is fixedly connected to a compression spring (33) on one side away from the turbine thrust shaft (31); the compression spring (33) is fixedly connected to a sedimentation tank (12) on one end away from the sliding plate (32); a sewage outlet (35) is provided at the bottom of the sedimentation tank (12); a sewage isolation plate (34) is slidably connected to the inner wall of the sedimentation tank (12) near the sewage outlet (35); and the sewage isolation plate (34) is fixedly connected to the sliding plate (32).

8. The dynamic circulation purification device for groundwater contaminated by organic matter according to claim 3 is characterized by: The dynamic purification mixing mechanism (4) comprises a turbine (41), the turbine (41) being mounted on the inner wall of the purification tank (14), a stirring shaft (42) being fixedly connected to the lower surface of the middle part of the turbine (41), the stirring shaft (42) being evenly provided with flow guide holes for accelerating the stirring flow of sewage, a linkage plate (43) being fixedly connected to the outer surface of the axis of the stirring shaft (42), inclined extrusion blocks being arranged at both ends of the linkage plate (43), a multi-nozzle guide plate (45) being evenly slidably connected to the inner wall of the purification tank (14), and liquid spray valves being evenly installed in the multi-nozzle guide plate (45).

9. The dynamic circulation purification device for groundwater contaminated by organic matter according to claim 8, characterized in that: A conduit (48) is fixedly connected to the liquid injection valve, an angled block (44) is fixedly connected to the upper end of the multi-nozzle guide plate (45), a return spring (47) is symmetrically fixedly connected to the lower end of the multi-nozzle guide plate (45), one end of the return spring (47) away from the multi-nozzle guide plate (45) is fixedly connected to a limit plate (46), the limit plate (46) is fixedly connected to the inner wall of the purification tank (14), and the conduit (48) is fixedly connected to the drug delivery tube.

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