Novel soil organic pollution remediation system

Abstract

The utility model relates to the technical field of soil remediation, in particular to a novel soil organic pollution remediation system which comprises a primary treatment pond, a pond cover, a first driver and a plurality of ultraviolet light catalytic reaction kettles. When the device is used, polluted soil is blended into paste, the paste is conveyed to the primary treatment tank for primary treatment in batches and then conveyed into the ultraviolet light catalytic reaction kettles for continuous deep treatment, the overall treatment capacity is large, and continuous treatment in batches can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, specifically to a novel soil organic pollution remediation system. Background Technology

[0002] Organic pollutants mainly include organic pesticides, phenols, cyanides, petroleum, synthetic detergents, and harmful microorganisms from urban sewage, sludge, and manure. When the soil contains too many harmful substances, exceeding its self-purification capacity, it will cause changes in the soil's composition, structure, and function. Microbial activity will be inhibited, and harmful substances or their decomposition products will gradually accumulate in the soil. These substances will then be indirectly absorbed by the human body through the "soil-plant-human" or "soil-water-human" pathways, reaching a level that harms human health.

[0003] Soil organic pollution generally covers a wide area and requires the treatment of a large amount of soil. Current photocatalytic reactor equipment has a limited processing capacity and takes a long time to process large areas of soil. Therefore, it is necessary to develop a soil organic pollution remediation system for application in soil organic pollution remediation. Utility Model Content

[0004] The purpose of this invention is to provide a novel soil organic pollution remediation system, which has a large overall processing capacity and can achieve continuous batch processing.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A novel soil organic pollution remediation system includes: a primary treatment tank, a tank cover, a first actuator, and multiple ultraviolet photocatalytic reactors.

[0007] The primary treatment tank is equipped with a feed pipe and multiple discharge pipes, and the multiple discharge pipes are respectively connected to multiple ultraviolet photocatalytic reactors.

[0008] The pretreatment tank is equipped with an overflow plate and a rack-type photocatalyst.

[0009] The pretreatment tank is divided by the overflow plate, forming a treatment chamber and a temporary storage chamber. The rack-type photocatalyst is located in the treatment chamber, and the feed pipe is connected to the temporary storage chamber.

[0010] The pretreatment tank is detachably connected to the tank cover. Multiple ultraviolet lamps are installed on the back of the tank cover. The rack-type photocatalyst is located between the ultraviolet lamps and the overflow plate. The discharge pipe is connected to the treatment chamber and is equipped with a valve.

[0011] The overflow plate is provided with an overflow port, and the processing chamber and the temporary storage chamber are connected only through the overflow port.

[0012] The first actuator is fixedly connected to the pool cover. A gate is provided in the pretreatment pool. The first actuator is fixedly connected to the gate. The first actuator is used to drive the gate to cover the overflow port.

[0013] Preferably, it also includes: a second driver, a stirring shaft, a plurality of first stirring blades and a plurality of second stirring blades.

[0014] The second driver is fixedly connected to the tank cover and the second driver is fixedly connected to the stirring shaft, and the stirring shaft is located inside the pretreatment tank.

[0015] The frame photocatalyst is provided with perforations, the stirring shaft passes through the perforations through the frame photocatalyst, and the stirring shaft is rotatably connected to the overflow plate.

[0016] The first stirring blade is fixedly connected to the stirring shaft, and the first stirring blade is located between the overflow plate and the frame photocatalyst.

[0017] The second stirring blade is fixedly connected to the stirring shaft, and multiple second stirring blades are located in the temporary storage chamber.

[0018] Preferably, a sampling tube is provided on the pool cover, and the sampling tube is inserted into the processing chamber.

[0019] Preferably, it also includes: a control device and a liquid level sensor.

[0020] The valve is an electrically controlled valve.

[0021] The liquid level sensor is located in the processing chamber, and the electronically controlled valve, the first actuator, the second actuator, and the liquid level sensor are all electrically connected to the control device.

[0022] Preferably, the pool cover is provided with a threaded rod, which is threadedly connected to the pool cover.

[0023] The bottom end of the threaded rod is located inside the treatment chamber, and the top end of the threaded rod is located outside the primary treatment tank. The liquid level sensor is fixedly connected to the bottom end of the threaded rod.

[0024] Preferably, the frame photocatalyst is provided with a clearance opening, which is fitted with the gate plate with a gap.

[0025] Preferably, the back of the pool cover is provided with multiple reflectors.

[0026] Preferably, the back of the pool cover has a connecting frame, and the ultraviolet lamp is fixedly connected to the connecting frame.

[0027] Preferably, the rack-type photocatalyst is arranged in a grid pattern.

[0028] Preferably, the pool cover is provided with a dispensing pipe, which is connected to the treatment chamber.

[0029] As a preferred option, it also includes: a water-soil mixing tank and a pumping system.

[0030] One end of the pumping system is connected to the water-soil mixing tank, and the other end of the pumping system is connected to the feed pipe.

[0031] The beneficial effects of this invention are as follows: In actual soil treatment, the soil, prepared into a paste, undergoes initial treatment in a pretreatment tank. During this process, photocatalysis begins, enabling the soil to achieve preliminary purification. Simultaneously, the previously pretreated paste is transferred to multiple ultraviolet photocatalytic reactors for further treatment. Through this process setup, the paste undergoes two photocatalytic treatments, and this dual photocatalytic treatment mechanism significantly enhances the removal capacity of organic pollutants from the soil, thereby ensuring excellent treatment results.

[0032] Moreover, once the entire system is operational, thanks to its unique structural design and the coordinated operation of its components, it can achieve a batch-by-batch continuous processing mode. In other words, while one batch of soil undergoes initial treatment in the primary treatment tank, the previously treated batch can immediately proceed to the ultraviolet photocatalytic reactor for further processing. Different batches of soil pass through each treatment stage sequentially and orderly without interruption. As a result, the system as a whole possesses high processing efficiency, capable of processing large quantities of contaminated soil in a relatively short time, meeting the needs of actual soil remediation work. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of a novel soil organic pollution remediation system according to Embodiment 1 of this disclosure is shown.

[0035] Figure 2 A partial schematic diagram of a novel soil organic pollution remediation system according to Embodiment 1 of this disclosure is shown.

[0036] Figure 3A partial schematic diagram of a novel soil organic pollution remediation system according to Embodiment 1 of this disclosure is shown.

[0037] Figure 4 A schematic diagram of a novel soil organic pollution remediation system according to Embodiment 2 of this disclosure is shown.

[0038] In the picture:

[0039] 1. Pretreatment tank; 11. Feed pipe; 12. Discharge pipe; 13. Overflow plate; 14. Framed photocatalyst; 15. Treatment chamber; 16. Temporary storage chamber; 131. Overflow port; 2. Tank cover; 21. Ultraviolet lamp; 22. Threaded rod; 23. Reflector; 24. Connecting frame; 25. Dispensing pipe; 3. First actuator; 31. Gate; 4. Ultraviolet photocatalytic reactor; 5. Second actuator; 6. Stirring shaft; 7. First stirring blade; 8. Second stirring blade; 9. Control device; 10. Liquid level sensor; 20. Water-soil mixing tank; 30. Pumping system. Detailed Implementation

[0040] The exemplary embodiments of this disclosure can be modified in various ways. Therefore, various exemplary embodiments are shown and described in more detail in the accompanying drawings. However, it will be understood that this disclosure is not limited to the specific exemplary embodiments, but includes all modifications, equivalents, and substitutions without departing from the scope and spirit of this disclosure. Furthermore, well-known functions or constructions may not be described in detail where such detail would unnecessarily obscure this disclosure. It should be noted that, unless otherwise expressly specified and limited, the terms "installation," "configuration," "connection," and "linking" should be interpreted broadly.

[0041] Photocatalysis is a green technology with significant application prospects in the energy and environmental fields. In recent years, research and development in photocatalysis applications has been rapid. This new technology boasts advantages such as low energy consumption, simple operation, and mild reaction conditions. It can completely oxidize organic matter in water, air, and soil into non-toxic and harmless substances at room temperature, avoiding secondary pollution. It is particularly effective in degrading organic pollutants, efficiently degrading various organic wastewaters, including antibiotic pharmaceutical wastewater, sulfur-containing fuel wastewater, fermentation production wastewater, and fine chemical wastewater, to meet emission standards.

[0042] Example 1

[0043] Please see Figures 1 to 3 As shown, the novel soil organic pollution remediation system disclosed in this embodiment includes a primary treatment tank 1, a tank cover 2, a first actuator 3, an ultraviolet photocatalytic reactor 4, a second actuator 5, a stirring shaft 6, a first stirring blade 7, a second stirring blade 8, a control device 9, and a liquid level sensor 10.

[0044] The primary treatment tank 1 is equipped with a feed pipe 11 and multiple discharge pipes 12. Similarly, multiple ultraviolet photocatalytic reactors 4 are also provided, with each discharge pipe 12 connected to one of the multiple ultraviolet photocatalytic reactors 4. The number of discharge pipes 12 and ultraviolet photocatalytic reactors 4 is determined according to the volume of the primary treatment tank 1.

[0045] The primary treatment tank 1 is equipped with an overflow plate 13 and a rack-type photocatalyst 14. The interior of the primary treatment tank 1 is divided by the overflow plate 13, thereby forming a treatment chamber 15 and a temporary storage chamber 16. The rack-type photocatalyst 14 is located in the treatment chamber 15, and the feed pipe 11 is connected to the temporary storage chamber 16.

[0046] The primary treatment tank 1 is detachably connected to the tank cover 2. Multiple ultraviolet lamps 21 are installed on the back of the tank cover 2. A rack-mounted photocatalyst 14 is located between the ultraviolet lamps 21 and the overflow plate 13. The discharge pipe 12 is connected to the treatment chamber 15, and an electrically controlled valve (not shown) is installed on the discharge pipe 12. A one-way valve (not shown) is installed on the feed pipe 11.

[0047] An overflow port 131 is provided on the overflow plate 13, and the processing chamber 15 and the temporary storage chamber 16 are connected only through the overflow port 131.

[0048] The first actuator 3 is fixedly connected to the pool cover 2. A gate 31 is provided inside the pretreatment pool 1. The first actuator 3 is fixedly connected to the gate 31. The first actuator 3 is used to drive the gate 31 to cover the overflow port 131. Preferably, the first actuator 3 is an electric telescopic cylinder.

[0049] The liquid level sensor 10 is located in the processing chamber 15. The electric control valve, the first actuator 3, the second actuator 5 and the liquid level sensor 10 are all electrically connected to the control device 9.

[0050] In this embodiment, the second driver 5 is fixedly connected to the tank cover 2 and to the stirring shaft 6, and the stirring shaft 6 is located inside the pretreatment tank 1. Preferably, the second driver 5 is a servo motor.

[0051] The frame photocatalyst 14 is provided with perforations (not shown), and the stirring shaft 6 passes through the perforations to pass through the frame photocatalyst 14. The stirring shaft 6 and the overflow plate 13 are rotatably connected by bearings.

[0052] Multiple first stirring blades 7 and second stirring blades 8 are provided. The first stirring blade 7 is fixedly connected to the stirring shaft 6 and is located between the overflow plate 13 and the rack-type photocatalyst 14. The second stirring blade 8 is fixedly connected to the stirring shaft 6 and is located in the temporary storage chamber 16.

[0053] The working method of this novel soil organic pollution remediation system includes the following steps:

[0054] 1) Start the second driver 5 through the control device to drive the stirring shaft 6 to rotate.

[0055] 2) The paste-like soil is sent into the temporary storage chamber 16. The paste-like soil continues to accumulate, causing some of the paste-like soil to overflow into the treatment chamber 15.

[0056] 3) Once the height of the paste-like soil reaches the set value of the liquid level sensor 10, the liquid level sensor 10 will feed back the information to the control device. Then the control device will start the first driver 3, so that the gate 31 covers the overflow port 131, and the processing chamber 15 and the temporary storage chamber 16 will be completely separated.

[0057] 4) The control device starts the ultraviolet lamp 21 to perform preliminary photocatalytic treatment on the paste-like soil in the treatment chamber 15.

[0058] 5) Once the set photocatalytic treatment time is reached, the control device opens the electronically controlled valve, allowing the pre-treated paste-like soil to flow into the ultraviolet photocatalytic reactor 4 for further deep treatment.

[0059] Repeating steps 2)-5) during the treatment process can continuously treat the paste-like soil. The paste-like soil can undergo two photocatalytic treatments, resulting in a better treatment effect.

[0060] While the pre-treatment of the mushy soil is underway, the previous batch of pre-treated mushy soil is processed separately in multiple ultraviolet photocatalytic reactors. The entire system has high processing efficiency and can achieve continuous batch processing.

[0061] In this embodiment, a sampling tube (not shown) is provided on the pool cover 2, and the sampling tube is inserted into the treatment chamber 15. By providing the sampling tube, staff can use it to sample the paste-like soil in the treatment chamber 15.

[0062] In this embodiment, a threaded rod 22 is provided on the pool cover 2, and the threaded rod 22 is threadedly connected to the pool cover 2. The bottom end of the threaded rod 22 is located inside the treatment chamber 15, and the top end of the threaded rod 22 is located outside the primary treatment pool 1. The liquid level sensor 10 is fixedly connected to the bottom end of the threaded rod 22.

[0063] When in use, the position of the liquid level sensor 10 can be adjusted by turning the threaded rod 22, which makes the adjustment convenient.

[0064] In this embodiment, the shelf-type photocatalyst 14 is provided with a clearance opening (not shown), which is fitted with the gate 31 with a clearance. By providing the clearance opening, the gate 31 can be effectively prevented from colliding with the shelf-type photocatalyst 14.

[0065] In this embodiment, a plurality of reflectors 23 are provided on the back of the pool cover 2. By providing reflectors 23 on the back of the pool cover 2, a portion of the ultraviolet light can be reflected toward the shelf photocatalyst 14, thereby improving the utilization rate of ultraviolet light.

[0066] In this embodiment, the back of the pool cover 2 has a connecting frame 24, and the ultraviolet lamp 21 is fixedly connected to the connecting frame 24.

[0067] In this embodiment, the rack-type photocatalyst 14 is arranged in a mesh pattern. Preferably, the rack-type photocatalyst 14 is a titanium dioxide photocatalytic mesh.

[0068] In this embodiment, a delivery pipe 25 is provided on the pool cover 2. The delivery pipe 25 is connected to the treatment chamber 15. Both the sampling pipe and the delivery pipe 25 are provided with sealing plugs (not shown).

[0069] The installation of a dispensing pipe makes it convenient for staff to dispense medications and supply gas, offering excellent convenience.

[0070] Example 2

[0071] Please see Figure 4 As shown, the novel soil organic pollution remediation system disclosed in this embodiment differs from that in Embodiment 1 in that it further includes a soil-water mixing tank 20 and a pumping system 30.

[0072] One end of the pumping system 30 is connected to the soil-water mixing tank 20, and the other end is connected to the feed pipe 11. A mixer (not shown) is installed inside the soil-water mixing tank 20. The pumping system 30 is used to transport the paste-like soil in the soil-water mixing tank 20 to the primary treatment tank 1.

[0073] Both the pumping system 30 and the mixer are electrically connected to the control device, which can control the pumping system 30 and the mixer through programming.

[0074] The subject matter disclosed above is to be considered illustrative rather than restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments falling within the true spirit and scope of the inventive concept. Therefore, to the maximum extent permitted by law, the scope will be determined by the widest permissible interpretation of the appended claims and their equivalents, and should not be constrained or limited by the foregoing detailed description.

Claims

1. A novel soil organic pollution remediation system, characterized in that, include: Pretreatment tank, tank cover, first actuator, and multiple ultraviolet photocatalytic reactors; The primary treatment tank is equipped with a feed pipe and multiple discharge pipes, and the multiple discharge pipes are respectively connected to the multiple ultraviolet photocatalytic reactors. The primary treatment tank is equipped with an overflow plate and a rack-type photocatalyst. The interior of the primary treatment tank is divided by the overflow plate, forming a treatment chamber and a temporary storage chamber; The rack-type photocatalyst is located in the processing chamber, and the feed pipe is connected to the temporary storage chamber; The pretreatment tank is detachably connected to the tank cover. Multiple ultraviolet lamps are installed on the back of the tank cover. The rack-type photocatalyst is located between the ultraviolet lamps and the overflow plate. The discharge pipe is connected to the treatment chamber and is equipped with a valve. The overflow plate is provided with an overflow port, and the processing chamber and the temporary storage chamber are connected only through the overflow port; The first actuator is fixedly connected to the pool cover. A gate is provided in the pretreatment pool. The first actuator is fixedly connected to the gate. The first actuator is used to drive the gate to cover the overflow port.

2. The novel soil organic pollution remediation system according to claim 1, characterized in that, Also includes: A second driver, a stirring shaft, multiple first stirring blades, and multiple second stirring blades; The second driver is fixedly connected to the tank cover, and the second driver is fixedly connected to the stirring shaft, and the stirring shaft is located inside the pretreatment tank; The frame photocatalyst is provided with perforations, the stirring shaft passes through the perforations through the frame photocatalyst, and the stirring shaft is rotatably connected to the overflow plate; The first stirring blade is fixedly connected to the stirring shaft, and the first stirring blade is located between the overflow plate and the frame photocatalyst; The second stirring blade is fixedly connected to the stirring shaft, and multiple second stirring blades are located in the temporary storage chamber.

3. A novel soil organic pollution remediation system according to claim 1, characterized in that, A sampling tube is installed on the pool cover, and the sampling tube is inserted into the processing chamber.

4. A novel soil organic pollution remediation system according to claim 2, characterized in that, Also includes: Control devices and level sensors; The valve is an electrically controlled valve; The liquid level sensor is located in the processing chamber, and the electronically controlled valve, the first actuator, the second actuator, and the liquid level sensor are all electrically connected to the control device.

5. A novel soil organic pollution remediation system according to claim 4, characterized in that, The pool cover is provided with a threaded rod, and the threaded rod is threadedly connected to the pool cover. The bottom end of the threaded rod is located inside the treatment chamber, and the top end of the threaded rod is located outside the primary treatment tank. The liquid level sensor is fixedly connected to the bottom end of the threaded rod.

6. A novel soil organic pollution remediation system according to claim 1, characterized in that, The frame photocatalyst is provided with an clearance opening, which is fitted with the gate plate with a gap.

7. A novel soil organic pollution remediation system according to claim 1, characterized in that, Multiple reflectors are provided on the back of the pool cover.

8. A novel soil organic pollution remediation system according to claim 1, characterized in that, The back of the pool cover has a connecting frame, and the ultraviolet lamp is fixedly connected to the connecting frame.

9. A novel soil organic pollution remediation system according to claim 1, characterized in that, The frame photocatalyst is arranged in a grid pattern.

10. A novel soil organic pollution remediation system according to claim 1, characterized in that, The pool cover is equipped with a dispensing pipe, which is connected to the processing chamber.

11. A novel soil organic pollution remediation system according to claim 1 or 4, characterized in that, Also includes: Water-soil mixing tank and pumping system; One end of the pumping system is connected to the water-soil mixing tank, and the other end of the pumping system is connected to the feed pipe.

Images