Lake water carbon and nitrogen metabolism repair reactor based on low oxygen condition

Abstract

This invention discloses a reactor for the remediation of carbon and nitrogen metabolism in lake water under low-oxygen conditions. When the riser pipe is filled with water, the water tank, riser pipe, and drain pipe can form a siphon effect. Through the sludge suction port, sludge from the bottom of the reaction chamber is first pumped into the water tank, then raised to the top of the riser pipe, and finally discharged out of the water tank through the drain pipe. The siphon effect can enhance the suction force of the sludge suction port. When the siphon is started, the air-sealing ring first descends to close the air inlet, and then the piston rises. At this time, the one-way diaphragm closes. As the piston rises, the water in the water tank is pushed into the riser pipe by the piston, thereby expelling the air in the riser pipe from the drain pipe, thus starting the siphon. When the piston descends, the one-way diaphragm opens upward to prevent the piston's descent from interfering with the siphon process. When the siphon is stopped, the air-sealing ring rises to allow air to enter the riser pipe, thereby breaking the siphon. Through the cooperation of the air-sealing ring and the piston, the siphon effect can be automatically started and stopped, facilitating the control of the cleaning work.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a reactor for the remediation of carbon and nitrogen metabolism in lake water under low-oxygen conditions. Background Technology

[0002] Carbon and nitrogen metabolism remediation in lakes under hypoxic conditions is an important part of lake ecological restoration. In existing technologies, lake water remediation often adopts the scheme of setting up biofilms in remediation reactors to purify water. The biofilm can serve as an attachment carrier for microorganisms, and the remediation of water is completed through the metabolic action of the microbial community enriched on its surface.

[0003] However, in the actual use of biofilms, microbial metabolism continuously produces sludge that gradually deposits inside the reactor, easily clogging the bottom of the biofilm, hindering effective contact between the water and the biofilm, and leading to a decrease in reaction efficiency. Furthermore, as the sludge concentration inside the reactor increases, the reaction efficiency also decreases. Therefore, it is necessary to design a reactor with the function of cleaning internal sludge. Summary of the Invention

[0004] The purpose of this invention is to provide a reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a reactor for the remediation of carbon and nitrogen metabolism in lake water under low oxygen conditions, comprising a water tank fixed on a floating box, a reaction chamber inside the water tank and a biofilm assembly fixed therein, a water pump fixed on the water tank for pumping lake water into the reaction chamber, and an overflow pipe fixed on the water tank for discharging lake water from the reaction chamber.

[0006] A drain pipe is fixed inside the water tank. The drain pipe inlet is located at the top of the reaction chamber, and the outlet is located at the bottom of the water tank. A turntable is mounted on the water tank and a water storage tank with a sludge suction port is mounted at the bottom of the reaction chamber. A lift pipe is fitted onto the drain pipe and is fixed between the turntable and the water storage tank. The water storage tank, lift pipe, and drain pipe are interconnected. An air inlet is opened at the top of the lift pipe. An air-sealing ring that controls the opening and closing of the air inlet is mounted on the turntable. A piston that moves up and down inside the water storage tank is mounted. The piston is equipped with an upward-opening one-way diaphragm. The movement of the piston is driven by the movement of the lower rail. An upper rail is mounted below the turntable. A transmission rod is mounted sliding between the upper and lower rails. The lift pipe and the transmission rod pass through the biofilm components.

[0007] Preferably, a driven bevel gear is fixed on the turntable, and a driving bevel gear is meshed with the driven bevel gear, which is fixed on the output shaft of the drive motor.

[0008] Preferably, the piston has a water passage hole, and the one-way diaphragm is a plastic sheet. One end of the one-way diaphragm is fixed to the upper surface of the piston, and the one-way diaphragm can cover the water passage hole.

[0009] Preferably, the lower end of the piston rod is fixed to the upper surface of the piston, the piston rod is slidably mounted on the water tank, and a lower track is fixed to the upper end of the piston rod.

[0010] Preferably, a control rod is fixed on the air-sealing ring, the control rod is raised and lowered on the turntable, a baffle is fixed on the control rod, a lever is rotated on the turntable, a rope is fixed to the output end of the lever, the rope can drive the upper track to rise, the baffle can contact the input end of the lever during the raising and lowering process, and the baffle can disengage from the lever at the upper limit position and the lower limit position.

[0011] Preferably, the lower end of the lifting rod is fixed on the upper track, the lifting rod is slidably mounted on the turntable, and a rope is fixed to the upper end of the lifting rod.

[0012] Preferably, the control lever is driven by an electric push rod, which is fixed on the turntable. The electric push rod can be shortened to lower the control lever.

[0013] Preferably, a torsion spring is provided between the lever and the turntable, and in the free state, the torsion spring keeps the lever in a horizontal position.

[0014] Preferably, an electric slip ring is installed between the turntable and the water tank, and the electric push rod is powered through the electric slip ring.

[0015] Preferably, the water pump has a fixed inlet pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: when the riser pipe is filled with water, the water tank, riser pipe and drain pipe can form a siphon effect. Through the sludge suction port, the sludge at the bottom of the reaction chamber is first pumped into the water tank, then raised to the top of the riser pipe, and finally discharged out of the water tank through the drain pipe. The siphon effect can enhance the suction force of the sludge suction port. The rotation of the turntable can drive the riser pipe to rotate, which in turn drives the water tank to rotate, which in turn drives the sludge suction port to rotate, so that the sludge suction port can fully cover the bottom of the reaction chamber, improving the cleaning range and cleaning capacity.

[0017] When the siphon is started, the air-sealing ring first descends to close the air inlet, and then the piston rises. At this time, the one-way diaphragm closes. As the piston rises, the water in the storage tank is pushed into the riser pipe by the piston, which in turn discharges the air in the riser pipe from the drain pipe, thus starting the siphon. When the piston descends, the one-way diaphragm opens upward to prevent the piston's descent from interfering with the siphon process. When the siphon stops, the air-sealing ring rises to allow air to enter the riser pipe, thereby breaking the siphon. Through the cooperation of the air-sealing ring and the piston, the siphon effect can be automatically started and stopped, which facilitates the control of the cleaning work. Attached Figure Description

[0018] Figure 1 This is an isometric view of the present invention;

[0019] Figure 2 This is the front view of the invention, with the float and water tank sidewalls removed.

[0020] Figure 3 This is a cross-sectional view of the present invention, with the floating box and biofilm assembly removed;

[0021] Figure 4 For the present invention Figure 3 A magnified view of part A;

[0022] Figure 5 This is an isometric view of the piston of the present invention;

[0023] Figure 6 For the present invention Figure 1 A magnified view of section B;

[0024] Figure 7 For the present invention Figure 3 A magnified view of a portion at point C;

[0025] Figure 8 For the present invention Figure 2 A magnified view of a portion of point D.

[0026] In the diagram: 101, water tank; 102, float box; 103, biofilm module; 104, water pump; 105, inlet pipe; 106, overflow pipe; 201, drain pipe; 202, lift pipe; 203, turntable; 204, water storage tank; 205, sludge suction port; 206, drive motor; 207, driving bevel gear; 208, driven bevel gear; 301, air inlet; 302, air-sealing ring; 303, piston; 304, one-way diaphragm; 305, upper track; 306, lower track; 307, transmission rod; 308, water passage hole; 309, piston rod; 310, control rod; 311, baffle; 312, lever; 313, rope; 314, lifting rod; 315, electric push rod; 316, electric slip ring. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention provides a technical solution: a reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions, such as... Figure 1 , 2As shown, to facilitate lake water restoration, the system includes a water tank 101, a float 102 fixed below the water tank 101, a reaction chamber inside the water tank 101, and a biofilm component 103 fixed inside the water tank 101. The biofilm component 103 is a product using existing technology. A water pump 104 is fixed on the water tank 101 to pump lake water into the reaction chamber. An overflow pipe 106 is fixed on the water tank 101 to discharge lake water from the reaction chamber. During operation, the water pump 104 first pumps lake water into the water tank 101, and then the lake water is discharged through the overflow port of the water tank 101, forming a circulating flow. During this process, the circulating lake water comes into full contact with the biofilm component 103 inside the device. By utilizing the carbon and nitrogen metabolism of the biofilm component 103, the lake water quality is restored.

[0029] like Figure 2 , 3 As shown, in order to improve the cleaning effect of the bottom mud of the reaction chamber, a drain pipe 201 is fixed inside the water tank 101. The inlet of the drain pipe 201 is located at the top of the reaction chamber, and the outlet of the drain pipe 201 is located at the bottom of the water tank 101. A turntable 203 is rotatably mounted on the water tank 101, and a water storage tank 204 with a mud suction port 205 is rotatably mounted at the bottom of the reaction chamber. A lifting pipe 202 is sleeved on the drain pipe 201 and is fixed between the turntable 203 and the water storage tank 204. The water storage tank 204, the lifting pipe 202 and the drain pipe 201 are interconnected.

[0030] When the riser pipe 202 is filled with water, the water tank 204, riser pipe 202 and drain pipe 201 can form a siphon effect. Through the sludge suction port 205, the sludge at the bottom of the reaction chamber is first pumped into the water tank 204, then raised to the top of the riser pipe 202, and finally discharged from the drain pipe 201 to the outside of the water tank 101. The siphon effect can enhance the suction force of the sludge suction port 205. The rotation of the turntable 203 can drive the riser pipe 202 to rotate, which in turn drives the water tank 204 to rotate, which in turn drives the sludge suction port 205 to rotate, so that the sludge suction port 205 can fully cover the bottom of the reaction chamber, improving the cleaning range and cleaning capacity.

[0031] like Figure 3-5As shown, to facilitate control of the siphon's start and stop, an air inlet 301 is provided at the top of the riser pipe 202. An air-sealing ring 302 is installed on the turntable 203, which controls the opening and closing of the air inlet 301. A piston 303 is installed inside the water tank 204, and a one-way diaphragm 304 is installed on the piston 303. The one-way diaphragm 304 opens upwards. The lifting and lowering of the piston 303 is driven by the lifting and lowering of the lower rail 306. An upper rail 305 is installed on the turntable 203, and a transmission mechanism slides between the upper rail 305 and the lower rail 306. The rod 307, the lifting pipe 202, and the transmission rod 307 pass through the biofilm assembly 103. When the turntable 203 rotates, it can drive the upper track 305 to rotate. When the water tank 204 rotates, it can drive the lower track 306 to rotate. Since the transmission rod 307 can slide relative to the upper track 305 and the lower track 306, it avoids the rotation of the turntable 203 and the water tank 204 from driving the transmission rod 307 to rotate. This allows the transmission rod 307 to move only in the lifting direction, thereby reducing the space occupied by the transmission rod 307 and increasing the usable space of the biofilm assembly 103.

[0032] When the siphon is started, the air-sealing ring 302 first descends to close the air inlet 301, and then the piston 303 rises. At this time, the one-way diaphragm 304 closes. As the piston 303 rises, the water in the water tank 204 is pushed into the riser pipe 202 by the piston 303, thereby discharging the air in the riser pipe 202 from the drain pipe 201, thus starting the siphon. When the piston 303 descends, the one-way diaphragm 304 opens upward to prevent the descent of the piston 303 from interfering with the siphon process. When the siphon is stopped, the air-sealing ring 302 rises to allow air to enter the riser pipe 202, thereby breaking the siphon. Through the cooperation of the air-sealing ring 302 and the piston 303, the siphon effect can be automatically started and stopped, which is convenient for controlling the cleaning work.

[0033] like Figure 1 , 6 As shown, in order to facilitate the driving of the turntable 203, a driven bevel gear 208 is fixed on the turntable 203. The driven bevel gear 208 is meshed with a driving bevel gear 207. The driving bevel gear 207 is fixed on the output shaft of the drive motor 206. The drive motor 206 can drive the driving bevel gear 207 to rotate, which in turn drives the driven bevel gear 208 to rotate, which in turn drives the turntable 203 to rotate.

[0034] like Figure 5As shown, the specific structure of the one-way diaphragm 304 is as follows: a water passage hole 308 is opened on the piston 303, and the one-way diaphragm 304 is a plastic sheet. One end of the one-way diaphragm 304 is fixed to the upper surface of the piston 303. The one-way diaphragm 304 can cover the water passage hole 308. When the piston 303 rises, the one-way diaphragm 304 is pressed against the piston 303 by water pressure, thereby pushing the water in the water tank 204 to rise. When the piston 303 falls, the water flows through the water passage hole 308, pushing open the one-way diaphragm 304, so that the piston 303 can be reset without interfering with the siphon.

[0035] like Figure 3 , 7 As shown, the specific lifting structure of piston 303 is as follows: the lower end of piston rod 309 is fixed on the upper surface of piston 303, piston rod 309 is slidably mounted on water tank 204, and a lower rail 306 is fixed on the upper end of piston rod 309. The rise of lower rail 306 can drive piston rod 309 to rise, thereby driving piston 303 to rise.

[0036] like Figure 4 , 6 As shown in Figure 8, in order to facilitate the control of the air-sealing ring 302 and the upper track 305, a control rod 310 is fixed on the air-sealing ring 302. The control rod 310 is mounted on the turntable 203 for lifting and lowering. A baffle 311 is fixed on the control rod 310. A lever 312 is mounted on the turntable 203 for rotation. A rope 313 is fixed to the output end of the lever 312. The rope 313 can drive the upper track 305 to rise. The baffle 311 can contact the input end of the lever 312 during the lifting and lowering process. The baffle 311 can disengage from the lever 312 when it is at the upper limit position and the lower limit position.

[0037] The descent of the air-sealing ring 302 first seals the air inlet 301, while simultaneously causing the baffle 311 to descend. As the air-sealing ring 302 continues to descend, the crossbar can contact the input end of the lever 312, causing the input end of the lever 312 to descend, which in turn causes the lever 312 to swing, which in turn causes the output end of the lever 312 to rise, which in turn causes the rope 313 to tighten, which in turn causes the upper rail 305 to rise, which in turn causes the transmission rod 307 to rise, which in turn causes the lower rail 306 to rise, which in turn causes the piston rod 309 to rise, which in turn causes the piston 303 to rise, which in turn pushes the water in the water tank 204 into the lift pipe 202, expelling the air in the lift pipe 202 and initiating the siphon. After the baffle 311 descends to the lower limit position, it can separate from the input end of the lever 312, and then the lever 312 and piston 303 return to their original positions.

[0038] When the air-sealing ring 302 rises, it can drive the baffle 311 to rise. As the baffle 311 rises, it first contacts the input end of the lever 312 and drives the input end of the lever 312 to rise, which in turn drives the lever 312 to swing in the opposite direction, which in turn drives the output end of the lever 312 to fall. At this time, the rope 313 is released, the upper track 305 remains stationary, and after the baffle 311 rises to the upper limit position, the baffle 311 separates from the input end of the lever 312, and the lever 312 resets.

[0039] Through the cooperation of baffle 311 and lever 312, the air-sealing ring 302 can drive the piston 303 to rise once when it descends, thereby completing the actions of sealing the air inlet 301 and pushing the water level in the lift pipe 202 to rise, which facilitates the start of the siphon.

[0040] like Figure 4 As shown, the specific structure of the upper track 305 controlled by the rope 313 is as follows: the lower end of the lifting rod 314 is fixed on the upper track 305, the lifting rod 314 is slidably mounted on the turntable 203, and the upper end of the lifting rod 314 is fixed with the rope 313. When the output end of the lever 312 rises, it can drive the rope 313 to tighten, thereby driving the lifting rod 314 to rise, and thus driving the upper track 305 to rise.

[0041] like Figure 6 As shown, the control lever 310 is driven by an electric push rod 315, which is fixed on the turntable 203. When the electric push rod 315 is shortened, it can drive the control lever 310 to descend.

[0042] To facilitate the holding position of lever 312, a torsion spring is provided between lever 312 and turntable 203. In the free state, the torsion spring holds lever 312 in a horizontal position.

[0043] like Figure 6 As shown, in order to facilitate the power supply of the electric push rod 315, an electric slip ring 316 is installed between the turntable 203 and the water tank 101. The electric slip ring 316 is a connection device that can realize power supply between the rotating part and the fixed part. In this embodiment, the rotating part is the turntable 203, the fixed part is the water tank 101, and the electric push rod 315 is powered through the electric slip ring 316.

[0044] like Figure 1 As shown, the specific structure of the water pump 104 for water intake is that the inlet of the water pump 104 is fixed with an inlet pipe 105.

[0045] Working process: During operation, the lake water restoration device floats on the lake surface. When running, pump 104 first draws lake water into the device's water tank 101, and then the lake water is discharged through the overflow pipe 106 of tank 101, forming a circulating flow. During this process, the circulating lake water comes into full contact with the biofilm inside the device, and the carbon and nitrogen metabolism of the biofilm helps to restore the lake water quality.

[0046] When cleaning the bottom mud of the reaction chamber, the drive motor 206 drives the active bevel gear 207 to rotate, which in turn drives the driven bevel gear 208 to rotate, which in turn drives the turntable 203 to rotate, which in turn drives the lift pipe 202 to rotate, which in turn drives the water storage tank 204 to rotate, which in turn drives the mud suction port 205 to rotate, so that the mud suction port 205 sweeps across the bottom of the reaction chamber.

[0047] When turntable 203 rotates, electric push rod 315 shortens, which in turn drives control rod 310 to descend, which in turn drives air-sealing ring 302 to descend, first sealing the air inlet 301 of lift pipe 202. The descent of control rod 310 can drive baffle 311 to descend, which in turn contacts the input end of lever 312, which in turn drives the input end of lever 312 to descend, which in turn drives lever 312 to swing, which in turn drives the output end of lever 312 to rise, which in turn drives rope 313 to tighten, which in turn drives lifting rod 314 to rise, which in turn drives upper track 305 to rise, which in turn drives transmission rod 307 to rise, which in turn drives lower track 306 to rise, which in turn drives piston rod 309 to rise, which in turn drives piston 303 to rise, which in turn squeezes water in water tank 204 into lift pipe 202, causing the water level in lift pipe 202 to rise, and squeezing air in lift pipe 202 out of drain pipe 201, thus starting siphon.

[0048] After the siphon is started, the sludge suction port 205 sucks the mud and water at the bottom of the reaction chamber into the water storage tank 204, pushes open the one-way diaphragm 304 on the piston 303 and enters the riser pipe 202, and then discharges from the drain pipe 201. When the baffle 311 descends to the lower limit position, the baffle 311 separates from the input end of the lever 312, and the lever 312 and piston 303 reset.

[0049] When cleaning work stops, the drive motor 206 is de-energized, causing the turntable 203 to stop rotating. The electric push rod 315 extends, which in turn raises the control rod 310, which in turn raises the air-sealing pipe, allowing air to enter the lifting pipe 202, disrupting the siphon effect and stopping water intake. The rise of the control rod 310 then raises the baffle 311, which contacts the input end of the lever 312, causing the lever 312 to swing in the opposite direction, raising the output end of the lever 312, and loosening the rope 313. When the baffle 311 rises to its upper limit position, the baffle 311 separates from the input end of the lever 312, and the lever 312 returns to its original position under the action of the torsion spring. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions: characterized in that: Includes a water tank (101) fixed on a float (102), the water tank (101) is a reaction chamber and a biofilm assembly (103) is fixed inside, a water pump (104) for pumping lake water into the reaction chamber is fixed on the water tank (101), and an overflow pipe (106) for draining lake water from the reaction chamber is fixed on the water tank (101). A drain pipe (201) is fixed inside the water tank (101). The inlet of the drain pipe (201) is located at the top of the reaction chamber, and the outlet is located at the bottom of the water tank (101). A turntable (203) is rotatably mounted on the water tank (101). A water storage tank (204) with a sludge suction port (205) is rotatably mounted at the bottom of the reaction chamber. A lifting pipe (202) is sleeved on the drain pipe (201). The lifting pipe (202) is fixed between the turntable (203) and the water storage tank (204). The water storage tank (204), the lifting pipe (202), and the drain pipe (201) are interconnected. An air inlet (301) is provided at the top of the lift pipe (202). An air-sealing ring (302) that can control the opening and closing of the air inlet (301) is provided on the turntable (203). A piston (303) is provided in the water tank (204). A one-way membrane (304) that opens upward is provided on the piston (303). The lifting of the piston (303) is driven by the lifting of the lower rail (306). An upper rail (305) is provided on the turntable (203). A transmission rod (307) is provided between the upper rail (305) and the lower rail (306). The lift pipe (202) and the transmission rod (307) pass through the biofilm assembly (103). A control lever (310) is fixed on the air-sealing ring (302). The control lever (310) is mounted on the turntable (203) for lifting and lowering. A baffle (311) is fixed on the control lever (310). A lever (312) is mounted on the turntable (203) for rotating. A rope (313) is fixed to the output end of the lever (312). The rope (313) can drive the upper track (305) to rise. The baffle (311) can contact the input end of the lever (312) during the lifting and lowering process. The baffle (311) can disengage from the lever (312) when it is at the upper limit position and the lower limit position.

2. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions according to claim 1: characterized in that: A driven bevel gear (208) is fixed on the turntable (203), and the driven bevel gear (208) is meshed with the driving bevel gear (207). The driving bevel gear (207) is fixed on the output shaft of the drive motor (206).

3. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions according to claim 1: characterized in that: A water passage hole (308) is provided on the piston (303). The one-way diaphragm (304) is a plastic sheet. One end of the one-way diaphragm (304) is fixed on the upper surface of the piston (303). The one-way diaphragm (304) can cover the water passage hole (308).

4. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions according to claim 1: characterized in that: The piston (303) has a piston rod (309) fixed to its upper surface. The piston rod (309) is slidably mounted on the water tank (204). The piston rod (309) has a lower track (306) fixed to its upper end.

5. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions according to claim 1: characterized in that: The lower end of the lifting rod (314) is fixed on the upper track (305), the lifting rod (314) is slidably set on the turntable (203), and the upper end of the lifting rod (314) is fixed with a rope (313).

6. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions according to claim 1: characterized in that: The control lever (310) is driven by an electric push rod (315), which is fixed on the turntable (203). When the electric push rod (315) is shortened, it can drive the control lever (310) to descend.

7. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions according to claim 1: characterized in that: A torsion spring is provided between the lever (312) and the turntable (203). In the free state, the torsion spring keeps the lever (312) in a horizontal position.

8. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions according to claim 1: characterized in that: An electric slip ring (316) is installed between the turntable (203) and the water tank (101), and the electric push rod (315) is powered through the electric slip ring (316).

9. A reactor for the remediation of carbon and nitrogen metabolism in lake water under hypoxic conditions according to claim 1: characterized in that: The water pump (104) has an inlet pipe (105) fixed at its inlet.

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