Microbial denitrification device and denitrification method for landscape water body treatment

Abstract

The invention provides a microbial denitrification device for landscape water treatment and a denitrification method, and belongs to the technical field of microbial denitrification. The microbial denitrification device for landscape water body treatment comprises a nitrification tank, a denitrification tank and a chemical injection mechanism, the denitrification tank is installed on the left side of the nitrification tank, a water inlet pipe is installed on the side wall of the nitrification tank, and the chemical injection mechanism is installed on the surface of the nitrification tank and used for injecting a biological reagent into a water body and comprises a pretreatment box, a reagent box and a branch pipe. The pretreatment box is installed in an inner cavity of the nitrification tank. According to the device, the medicine injection mechanism is arranged, an abutting plate drives a first connecting rod to reciprocate, a biological reagent is injected into a branch pipe, a connecting plate drives a second connecting rod and a second piston to move synchronously, air is injected into a water pipe, the air and the biological reagent are synchronously sprayed out from a medicine injection hole after being mixed, the mixing efficiency of the biological reagent and a water body is improved, and meanwhile, the water body is prevented from being polluted. The water body is aerated, the oxygen content of the water body is increased, and the nitration reaction rate is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of microbial denitrification, and in particular to a microbial denitrification device and a denitrification method for landscape water treatment. Background Art

[0002] Nitrogen is one of the main components of eutrophication of water bodies. The main source of nitrogen comes from agricultural and urban emissions, such as fertilizers and sewage discharge. Eutrophication can lead to the massive growth of algae in water bodies, causing water quality deterioration, increased oxygen consumption, and even algal blooms, affecting the ecological balance of water bodies. The typical manifestations of eutrophication are turbidity and stench in water bodies, and can lead to the death of aquatic organisms, thus affecting the landscape effect and the stability of the water ecosystem. Therefore, by removing nitrogen from water bodies, water quality can be improved, harmful components in water bodies can be reduced, the ornamental value and ecological function of landscape water bodies can be enhanced, and the cleanliness and transparency of water bodies can be maintained.

[0003] Water bodies can be denitrified through biological fermentation, which mainly utilizes the metabolism of microorganisms to remove nitrogen compounds in the water, especially ammonia nitrogen and nitrate nitrogen. In this process, biological reagents need to be mixed into the water. However, most existing biological reagents are injected into the water by sprinkling, which has poor uniformity and cannot synchronously aerate the water body, resulting in slow nitrification reaction. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a microbial denitrification device and a denitrification method for landscape water treatment that overcome the above technical problems or at least partially solve the above problems.

[0005] The present invention is achieved in that: The present invention provides a microbial denitrification device for landscape water treatment, comprising a nitrification tank, a denitrification tank and a drug injection mechanism, wherein the denitrification tank is installed on the left side of the nitrification tank, a water inlet pipe is installed on the side wall of the nitrification tank, and the drug injection mechanism is installed on the surface of the nitrification tank for injecting biological reagents into the water body, and the drug injection mechanism comprises: A pretreatment box, the pretreatment box is installed in the inner cavity of the nitrification tank, and the water inlet pipe is connected to the pretreatment box; A reagent box, which is installed on the surface of the nitrification tank and is used to store biological reagents. A drug injection cartridge is installed at the bottom of the reagent box, a first piston is slidably installed in the inner cavity of the drug injection cartridge, and a first one-way valve is installed on the side wall of the drug injection cartridge; A branch pipe is installed at the bottom of the pretreatment box, a plurality of injection holes are opened between the branch pipe and the pretreatment box, and a water pipe is connected between the branch pipe and the injection cylinder.

[0006] In a preferred embodiment, the bottom of the pretreatment box is connected with a water pipe for guiding water to the lower part of the nitrification tank. A first rotating shaft is rotatably installed in the inner cavity of the nitrification tank. The water pipe is sleeved on the surface of the first rotating shaft. A plurality of first stirring rods are fixedly installed on the surface of the first rotating shaft for premixing the biological reagent with the water. A motor is fixedly installed on the surface of the nitrification tank, and the output end of the motor is fixedly connected to one end of the first rotating shaft.

[0007] In a preferred embodiment, a first spring is installed in the inner cavity of the injection barrel, one end of the first spring is fixedly connected to the first piston, and is used to drive the first piston to move left, a first connecting rod is fixedly installed on the side wall of the first piston, an abutment plate is fixed at one end of the first connecting rod, a protrusion is fixedly installed on the surface of the first rotating shaft, and the protrusion is in contact with the surface of the abutment plate, and is used to drive the first piston to move right.

[0008] In a preferred embodiment, an injection cavity is provided in the inner cavity of the nitrification tank, a second piston is slidably installed in the injection cavity, a second connecting rod is fixedly installed on the side wall of the second piston, a connecting plate is fixedly installed on one end of the second connecting rod, the connecting plate is fixedly connected to the first connecting rod, a second one-way valve and a third one-way valve are installed on the side wall of the injection cavity, and an air pipe is connected between the third one-way valve and the water pipe.

[0009] In a preferred embodiment, a rotating frame is fixedly mounted on the bottom of the first rotating shaft, stirring blades are symmetrically fixedly mounted on the side wall of the rotating frame, and the stirring blades are inclined. A second rotating shaft is symmetrically and rotationally mounted on the side wall of the first rotating shaft, and a second stirring rod is fixedly mounted on the side wall of the second rotating shaft for re-mixing the biological reagent and the water body. A first gear is fixedly mounted on one end of the second rotating shaft, and a gear ring is fixedly mounted on the inner cavity of the nitrification tank, and the gear ring is meshed with the first gear.

[0010] In a preferred solution, a defoaming mechanism is installed between the nitrification tank and the denitrification tank for eliminating bubbles in the water. The defoaming mechanism includes a liquid guiding frame and a vibration block. The liquid guiding frame is installed between the nitrification tank and the denitrification tank. A vibration block is slidably installed in the inner cavity of the nitrification tank for vibrating and defoaming the water flowing through the liquid guiding frame. Second springs are fixedly installed on both sides of the vibration block, one end of the second spring is fixedly connected to the liquid guiding frame for driving the vibration block to move downward, a first driving block is fixedly installed on the bottom of the vibration block, and the bottom of the first driving block is wedge-shaped. A driving ring is fixedly installed on the surface of the rotating frame, and a second driving block is fixedly installed on the surface of the driving ring. The surface of the second driving block is wedge-shaped for driving the first driving block to move upward.

[0011] In a preferred embodiment, a lifting plate is slidably installed in the inner cavity of the liquid guiding frame, a needle is fixedly installed at the bottom of the lifting plate for puncturing bubbles, a first tooth plate is fixedly installed on the side wall of the lifting plate, a second tooth plate is fixedly installed on the side wall of the vibration block, and a second gear is rotatably installed on the side wall of the liquid guiding frame, and the first tooth plate and the second tooth plate are both engaged with the second gear.

[0012] In a preferred embodiment, a carbon adding mechanism is installed on the surface of the denitrification tank for adding a carbon source, and the carbon adding mechanism includes a third rotating shaft, a filling frame and a third piston. The third rotating shaft is rotatably installed in the inner cavity of the denitrification tank, a third stirring rod is fixedly installed on the surface of the third rotating shaft, a first pulley is fixedly installed on the surface of the third rotating shaft, a second pulley is fixedly installed on the surface of the first rotating shaft, a belt is connected between the first pulley and the second pulley, a filling frame is installed on the side wall of the denitrification tank, a third piston is slidably installed in the inner cavity of the filling frame, a third spring is symmetrically fixedly installed in the inner cavity of the filling frame, one end of the third spring is fixedly connected to the third piston, and is used to drive the third piston to move toward the inner cavity of the denitrification tank.

[0013] In a preferred solution, a first wedge is fixedly mounted on the side wall of the third piston, a floating ring is slidably mounted on the inner cavity of the denitrification tank, a second wedge is fixedly mounted on the side wall of the floating ring for driving the first wedge to move, a carbon source box is fixedly mounted on the surface of the filling frame for storing the carbon source, a fourth one-way valve is mounted on the side wall of the carbon source box, a water pipe is connected between the fourth one-way valve and the filling frame, a fifth one-way valve is mounted on the lower part of the filling frame, a filling chamber is opened in the inner cavity of the denitrification tank, and a water pipe is connected between the filling chamber and the fifth one-way valve.

[0014] A method for denitrification of landscape water bodies by microorganisms, applicable to the above-mentioned device for denitrification of landscape water bodies by microorganisms, comprises the following steps: S1: nitrification reaction; inject the landscape water into the pretreatment tank through the water inlet pipe, drive the first rotating shaft to rotate through the motor, drive the convex block to rotate synchronously, inject the biological reagent into the branch pipe through the first piston, and inject it into the pretreatment tank from the injection hole, and preliminarily mix it with the water through the first stirring rod, and inject air into the water pipe through the second piston, so that the air and the biological reagent are mixed and then sprayed out synchronously from the injection hole, and then the water is injected into the lower part of the nitrification tank through the water pipe, and the water and the biological reagent are mixed again through the second stirring rod, and the ammonia nitrogen in the water is converted into nitrate through nitrifying bacteria; S2: Debubbling: The driving ring drives the rotating frame to rotate synchronously, drives the vibration block to move upward, and impacts the liquid guide frame to remove bubbles, so that the bubbles in the water float upward. When the vibration block moves upward, it drives the second tooth plate to move upward synchronously, and drives the first tooth plate and the lifting plate to move downward through the second gear, and punctures the floating bubbles through acupuncture to complete the debubbling work, reduce the oxygen content in the water, and provide an anaerobic environment for the denitrification reaction; S3: denitrification reaction; the water body after defoaming enters the denitrification tank through the liquid guide frame for denitrification reaction, and as the water level rises, the float floats upward, and the first wedge is driven by the second wedge to drive the third piston to move backward, the fifth one-way valve is turned on, and the carbon source in the filling frame is injected into the filling chamber and mixed into the water body through the third stirring rod to ensure the growth of denitrifying bacteria and denitrification reaction, and reduce nitrate to nitrogen gas, thereby removing nitrogen in the water.

[0015] The present invention provides a microbial denitrification device and denitrification method for landscape water treatment, and its beneficial effects include: 1. By setting up a drug injection mechanism, the motor drives the first rotating shaft to rotate, drives the convex block to rotate synchronously, drives the abutment plate to drive the first connecting rod to move back and forth, injects the biological reagent into the branch pipe, and injects it into the pretreatment box from the injection hole, and preliminarily mixes it with the water body through the first stirring rod, and drives the second connecting rod and the second piston to move synchronously through the connecting plate, injects air into the water pipe, and after the air and the biological reagent are mixed, they are synchronously sprayed out from the injection hole, thereby improving the mixing efficiency of the biological reagent and the water body. At the same time, the water body is aerated to increase the oxygen content of the water body and accelerate the nitrification reaction rate.

[0016] 2. By setting up a debubbling mechanism, the driving ring drives the rotating frame to rotate synchronously. When the second driving block contacts the first driving block, the vibration block is driven to move upward to impact the liquid guide frame to remove bubbles, so that the bubbles in the water float upward. Then the second spring is reset to drive the vibration block downward. When the vibration block moves upward, it drives the second tooth plate to move upward synchronously, and drives the first tooth plate and the lifting plate to move downward through the second gear. The floating bubbles are punctured by acupuncture to complete the debubbling work, reduce the oxygen content in the water, and provide an anaerobic environment for the denitrification reaction.

[0017] 3. By setting up a carbon adding mechanism, the water body after defoaming enters the denitrification tank through the liquid guide frame for denitrification reaction, and as the water level rises, the float ring floats upward, and the first wedge is driven by the second wedge to drive the third piston to move backward, and the fifth one-way valve is turned on, and the carbon source in the filling frame is injected into the filling chamber and mixed into the water body through the third stirring rod to ensure the growth of denitrifying bacteria and denitrification reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those skilled in the art, other relevant drawings can be obtained based on these drawings without creative work. Figure 1 is a front perspective view provided by an embodiment of the present invention; Figure 2 A side perspective view of an embodiment of the present invention is provided; Figure 3 A front view of an embodiment of the present invention is provided; Figure 4 A front cross-sectional view provided for an embodiment of the present invention; Figure 5 The embodiments of the present invention provide Figure 4 Enlarged view of point A in the middle; Figure 6 A side cross-sectional view of a nitration tank provided in an embodiment of the present invention; Figure 7 The embodiments of the present invention provide Figure 6 Enlarged view of point B in the middle; Figure 8 A side cross-sectional perspective view of a nitration tank provided in an embodiment of the present invention; Fig. 9 A rear cross-sectional view provided for an embodiment of the present invention; Fig.10 A three-dimensional diagram of a defoaming mechanism provided in an embodiment of the present invention; Fig.11 A cross-sectional view of a denitrification tank provided in an embodiment of the present invention.

[0019] In the figure: 1, nitrification tank; 2, denitrification tank; 3, water inlet pipe; 4, drug injection mechanism; 401, pretreatment tank; 402, water guide pipe; 403, first rotating shaft; 404, first stirring rod; 405, motor; 406, reagent box; 407, drug injection cartridge; 408, first piston; 409, first spring; 410, first connecting rod; 411, abutment plate; 412, bump; 413, first one-way valve; 414, branch pipe; 415, drug injection hole; 416, gas injection cavity; 417, second piston; 418, second connecting rod; 419, connecting plate; 420, second one-way valve; 421, third one-way valve; 422, rotating frame; 423, stirring blade; 424, second rotating shaft; 425, second stirring rod; 426, The first gear; 427, gear ring; 5, debubble mechanism; 501, liquid guide frame; 502, vibration block; 503, second spring; 504, first drive block; 505, drive ring; 506, second drive block; 507, lifting plate; 508, acupuncture; 509, first tooth plate; 510, second tooth plate; 511, second gear; 6, carbon adding mechanism; 601, third rotating shaft; 602, third stirring rod; 603, first pulley; 604, second pulley; 605, filling frame; 606, third piston; 607, third spring; 608, first wedge block; 609, float; 610, second wedge block; 611, carbon source box; 612, fourth one-way valve; 613, fifth one-way valve; 614, filling chamber. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Reference Figure 1-Figure 11As shown, the present invention provides a technical solution: a microbial denitrification device for landscape water treatment, comprising a nitrification tank 1, a denitrification tank 2 and a drug injection mechanism 4, the denitrification tank 2 is installed on the left side of the nitrification tank 1, a water inlet pipe 3 is installed on the side wall of the nitrification tank 1, and the drug injection mechanism 4 is installed on the surface of the nitrification tank 1 for injecting biological reagents into the water body, and the drug injection mechanism 4 comprises a pretreatment box 401, a reagent box 406 and a branch pipe 414, the pretreatment box 401 is installed in the inner cavity of the nitrification tank 1, and the water inlet pipe 3 is connected to the pretreatment box 401. The treatment box 401 is connected, and the bottom of the pretreatment box 401 is connected with a water pipe 402 for guiding water to the lower part of the nitrification tank 1. The inner cavity of the nitrification tank 1 is rotatably installed with a first rotating shaft 403, and the water pipe 402 is sleeved on the surface of the first rotating shaft 403. A plurality of first stirring rods 404 are fixedly installed on the surface of the first rotating shaft 403 for premixing the biological reagent with the water body. A motor 405 is fixedly installed on the surface of the nitrification tank 1, and the output end of the motor 405 is fixedly connected to one end of the first rotating shaft 403.

[0022] Reference Figure 1-Figure 8 As shown, in a preferred embodiment, a reagent box 406 is installed on the surface of the nitrification tank 1 for storing biological reagents, a drug injection cartridge 407 is installed at the bottom of the reagent box 406 for injecting biological reagents into the nitrification tank 1, a first piston 408 is slidably installed in the inner cavity of the drug injection cartridge 407, a first spring 409 is installed in the inner cavity of the drug injection cartridge 407, one end of the first spring 409 is fixedly connected to the first piston 408 for driving the first piston 408 to move left, a first connecting rod 410 is fixedly installed on the side wall of the first piston 408, one end of the first connecting rod 410 is fixedly installed with an abutment plate 411, a protrusion 412 is fixedly installed on the surface of the first rotating shaft 403, the protrusion 412 is in contact with the surface of the abutment plate 411, for driving the first piston 408 to move right, under the action of the first spring 409, the abutment plate 411 is tightly attached to the side wall of the protrusion 412, and when the motor 405 drives the first rotating shaft 403 to rotate, the protrusion 412 is driven to rotate synchronously, thereby driving the abutment The plate 411 drives the first connecting rod 410 to move back and forth. The side wall of the injection barrel 407 is installed with a first one-way valve 413, which is unidirectionally connected to the outer wall of the injection barrel 407 for discharging liquid. The surface of the injection barrel 407 is installed with an air valve, which is unidirectionally connected to the inner cavity of the injection barrel 407 for resetting the first piston 408. The branch pipe 414 is installed at the bottom of the pretreatment box 401, and a plurality of injection ports are opened between the branch pipe 414 and the pretreatment box 401. Hole 415, a water pipe is connected between the branch pipe 414 and the injection barrel 407. When the motor 405 drives the first rotating shaft 403 to rotate, the protrusion 412 is driven to rotate synchronously, and under the action of the first spring 409, the abutment plate 411 is driven to drive the first connecting rod 410 to move back and forth, and the biological reagent is injected into the branch pipe 414 through the first piston 408, and is injected into the pretreatment box 401 from the injection hole 415, and is preliminarily mixed with the water through the first stirring rod 404.

[0023] Reference Figure 1-Figure 8 As shown, in a preferred embodiment, the inner cavity of the nitration tank 1 is provided with an injection cavity 416, a second piston 417 is slidably installed in the injection cavity 416, a second connecting rod 418 is fixedly installed on the side wall of the second piston 417, a connecting plate 419 is fixedly installed on one end of the second connecting rod 418, the connecting plate 419 is fixedly connected to the first connecting rod 410, a second one-way valve 420 and a third one-way valve 421 are installed on the side wall of the injection cavity 416, the second one-way valve 420 is unidirectionally conducted to the inner cavity direction of the injection cavity 416 for air intake, and the third one-way valve 421 is unidirectionally conducted to the injection cavity 416 for air intake. The outer wall of 416 is unidirectionally conductive for exhausting air. An air pipe is connected between the third one-way valve 421 and the water pipe. When the first connecting rod 410 moves back and forth, the second connecting rod 418 and the second piston 417 are driven to move synchronously through the connecting plate 419, so that the second one-way valve 420 and the third one-way valve 421 are alternately conductive, and air is injected into the water pipe. After the air is mixed with the biological reagent, it is synchronously sprayed out from the injection hole 415, thereby improving the mixing efficiency of the biological reagent and the water body. At the same time, the water body is aerated to increase the oxygen content of the water body and accelerate the nitrification reaction rate.

[0024] Reference Figure 1-Figure 8 As shown, in a preferred embodiment, a rotating frame 422 is fixedly installed at the bottom of the first rotating shaft 403, and a stirring blade 423 is symmetrically fixedly installed on the side wall of the rotating frame 422, and the stirring blade 423 is inclined. A second rotating shaft 424 is symmetrically rotated and installed on the side wall of the first rotating shaft 403, and a second stirring rod 425 is fixedly installed on the side wall of the second rotating shaft 424 for re-mixing the biological reagent and the water body. A first gear 426 is fixedly installed at one end of the second rotating shaft 424, and a gear ring 427 is fixedly installed in the inner cavity of the nitrification tank 1, and the gear ring 427 is meshed with the first gear 426. When the motor 405 drives the first rotating shaft 403 to rotate, the rotating frame 422 and the second rotating shaft 424 are driven to rotate synchronously, and under the action of the gear ring 427, the second rotating shaft 424 is driven to rotate synchronously, and the water body and the biological reagent are mixed again by the second stirring rod 425 to improve the uniformity of the water body.

[0025] In a preferred embodiment, when in use, the landscape water is injected into the pretreatment box 401 through the water inlet pipe 3, and the first rotating shaft 403 is driven to rotate by the motor 405, driving the protrusion 412 to rotate synchronously, and under the action of the first spring 409, the abutment plate 411 is driven to drive the first connecting rod 410 to move back and forth, and the biological reagent is injected into the branch pipe 414 through the first piston 408, and injected into the pretreatment box 401 from the injection hole 415, and preliminarily mixed with the water through the first stirring rod 404, and the second connecting rod 418 and the second piston are driven by the connecting plate 419. 417 moves synchronously, so that the second one-way valve 420 and the third one-way valve 421 are alternately turned on, and air is injected into the water pipe. After the air is mixed with the biological reagent, it is synchronously sprayed out from the injection hole 415, thereby improving the mixing efficiency of the biological reagent and the water body. At the same time, the water body is aerated to increase the oxygen content of the water body and accelerate the nitrification reaction rate; then the water body is injected into the lower part of the nitrification tank 1 through the water pipe 402, and under the action of the gear ring 427, the second rotating shaft 424 is driven to rotate synchronously, and the water body and the biological reagent are mixed again through the second stirring rod 425 to improve the uniformity of the water body.

[0026] Reference Figure 1-Figure 10 As shown, in a preferred embodiment, a defoaming mechanism 5 is installed between the nitrification tank 1 and the denitrification tank 2, which is used to eliminate bubbles in the water, reduce the oxygen content of the water body, and provide an anaerobic environment for the denitrification reaction. The defoaming mechanism 5 includes a liquid guide frame 501 and a vibration block 502. The liquid guide frame 501 is installed between the nitrification tank 1 and the denitrification tank 2. The vibration block 502 is slidably installed in the inner cavity of the nitrification tank 1, which is used to vibrate and remove bubbles in the water body flowing through the liquid guide frame 501. Second springs 503 are fixedly installed on both sides of the vibration block 502. One end of the second spring 503 is fixedly connected to the liquid guide frame 501, which is used to drive the vibration block 502 to move downward. A first driving spring 503 is fixedly installed at the bottom of the vibration block 502. Block 504, the bottom of the first driving block 504 is wedge-shaped, a driving ring 505 is fixedly installed on the surface of the rotating frame 422, and a second driving block 506 is fixedly installed on the surface of the driving ring 505. The surface of the second driving block 506 is wedge-shaped and is used to drive the first driving block 504 to move upward. When the motor 405 drives the first rotating shaft 403 to rotate, the rotating frame 422 is driven to rotate synchronously through the driving ring 505. When the second driving block 506 contacts the first driving block 504, it drives the vibration block 502 to move upward, impacts the liquid guiding frame 501 to remove bubbles, and makes the bubbles in the water float upward, then the second spring 503 is reset, and the vibration block 502 is driven to move downward, and this is repeated.

[0027] Reference Figure 1-Figure 10As shown, in a preferred embodiment, a lifting plate 507 is slidably installed in the inner cavity of the liquid guiding frame 501, and a needle 508 is fixedly installed at the bottom of the lifting plate 507 for puncturing bubbles. A first tooth plate 509 is fixedly installed on the side wall of the lifting plate 507, and a second tooth plate 510 is fixedly installed on the side wall of the vibration block 502. A second gear 511 is rotatably installed on the side wall of the liquid guiding frame 501, and the first tooth plate 509 and the second tooth plate 510 are both engaged with the second gear 511. When the vibration block 502 moves up, it drives the second tooth plate 510 to move up synchronously, and drives the first tooth plate 509 and the lifting plate 507 to move down through the second gear 511, and the floating bubbles are punctured by the needle 508 to complete the defoaming work, reduce the oxygen content in the water, and provide an anaerobic environment for the denitrification reaction.

[0028] In a preferred embodiment, when the motor 405 drives the first rotating shaft 403 to rotate, the rotating frame 422 is driven to rotate synchronously through the driving ring 505. When the second driving block 506 contacts the first driving block 504, the vibration block 502 is driven to move upward, and the liquid guide frame 501 is impacted to remove bubbles, so that the bubbles in the water float upward. Then the second spring 503 is reset and the vibration block 502 is driven to move downward. This is repeated. When the vibration block 502 moves upward, it drives the second tooth plate 510 to move upward synchronously, and drives the first tooth plate 509 and the lifting plate 507 to move downward through the second gear 511. The floating bubbles are punctured by acupuncture 508 to complete the debubbling work, reduce the oxygen content in the water, and provide an anaerobic environment for the denitrification reaction.

[0029] Reference Figure 1-Figure 11 As shown, in a preferred embodiment, a carbon adding mechanism 6 is installed on the surface of the denitrification tank 2 for adding a carbon source to support the growth of denitrifying bacteria and the denitrification reaction. The carbon adding mechanism 6 includes a third rotating shaft 601, a filling frame 605 and a third piston 606. The third rotating shaft 601 is rotatably installed in the inner cavity of the denitrification tank 2, a third stirring rod 602 is fixedly installed on the surface of the third rotating shaft 601, a first pulley 603 is fixedly installed on the surface of the third rotating shaft 601, a second pulley 604 is fixedly installed on the surface of the first rotating shaft 403, a belt is connected between the first pulley 603 and the second pulley 604, a filling frame 605 is installed on the side wall of the denitrification tank 2, a third piston 606 is slidably installed in the inner cavity of the filling frame 605, a third spring 607 is symmetrically fixedly installed in the inner cavity of the filling frame 605, one end of the third spring 607 is fixedly connected to the third piston 606, and is used to drive the third piston 606 to move toward the inner cavity of the denitrification tank 2.

[0030] Reference Figure 1-Figure 11As shown, in a preferred embodiment, a first wedge 608 is fixedly installed on the side wall of the third piston 606, a float 609 is slidably installed in the inner cavity of the denitrification tank 2, a second wedge 610 is fixedly installed on the side wall of the float 609, which is used to drive the first wedge 608 to move, a carbon source box 611 is fixedly installed on the surface of the filling frame 605, which is used to store the carbon source, and the carbon source can be alcohol, sugar solution, etc., a fourth one-way valve 612 is installed on the side wall of the carbon source box 611, the fourth one-way valve 612 is unidirectionally connected to the outer wall direction of the carbon source box 611, a water pipe is connected between the fourth one-way valve 612 and the filling frame 605, a fifth one-way valve 613 is installed at the lower part of the filling frame 605, the fifth one-way valve 613 is unidirectionally connected to the outer wall direction of the filling frame 605, a filling chamber 614 is opened in the inner cavity of the denitrification tank 2, and a water pipe is connected between the filling chamber 614 and the fifth one-way valve 613.

[0031] In a preferred embodiment, the defoamed water enters the denitrification tank 2 through the liquid guide frame 501 for denitrification reaction, and as the water level rises, the float 609 floats upward, and the first wedge block 608 is driven by the second wedge block 610 to drive the third piston 606 to move backward, the fifth one-way valve 613 is turned on, and the carbon source in the filling frame 605 is injected into the filling chamber 614 and mixed into the water through the third stirring rod 602 to ensure the growth of denitrifying bacteria and denitrification reaction.

[0032] A method for denitrification of landscape water bodies by microorganisms, applicable to the above-mentioned device for denitrification of landscape water bodies by microorganisms, comprises the following steps: S1: nitrification reaction; inject the landscape water into the pretreatment tank 401 through the water inlet pipe 3, drive the first rotating shaft 403 to rotate through the motor 405, drive the protrusion 412 to rotate synchronously, inject the biological reagent into the branch pipe 414 through the first piston 408, and inject it into the pretreatment tank 401 from the injection hole 415, and preliminarily mix it with the water through the first stirring rod 404, and inject air into the water pipe through the second piston 417, so that the air and the biological reagent are mixed and then ejected synchronously from the injection hole 415, and then the water is injected into the lower part of the nitrification tank 1 through the water pipe 402, and the water and the biological reagent are mixed again through the second stirring rod 425, and the ammonia nitrogen in the water is converted into nitrate through nitrifying bacteria; S2: debubbling; the driving ring 505 drives the rotating frame 422 to rotate synchronously, drives the vibration block 502 to move upward, and impacts the liquid guide frame 501 to remove bubbles, so that the bubbles in the water float upward, and when the vibration block 502 moves upward, it drives the second tooth plate 510 to move upward synchronously, and drives the first tooth plate 509 and the lifting plate 507 to move downward through the second gear 511, and punctures the floating bubbles through the acupuncture 508, completing the debubbling work, reducing the oxygen content in the water, and providing an anaerobic environment for the denitrification reaction; S3: denitrification reaction; the water body after defoaming enters the denitrification tank 2 through the liquid guide frame 501 for denitrification reaction, and as the water level rises, the float 609 floats upward, and drives the first wedge block 608 through the second wedge block 610 to drive the third piston 606 to move backward, and the fifth one-way valve 613 is turned on, and the carbon source in the filling frame 605 is injected into the filling chamber 614 and mixed into the water body through the third stirring rod 602, so as to ensure the growth of denitrifying bacteria and denitrification reaction, reduce nitrate to nitrogen gas, and thus remove nitrogen in the water.

[0033] Specifically, the working principle of the microbial denitrification device for landscape water treatment is as follows: when in use, the landscape water is injected into the pretreatment box 401 through the water inlet pipe 3, and the first rotating shaft 403 is driven to rotate by the motor 405, driving the protrusion 412 to rotate synchronously, and under the action of the first spring 409, the abutment plate 411 is driven to drive the first connecting rod 410 to move back and forth, and the biological reagent is injected into the branch pipe 414 through the first piston 408, and injected into the pretreatment box 401 from the injection hole 415, and preliminarily mixed with the water through the first stirring rod 404, and the second connecting rod is driven by the connecting plate 419. 418 and the second piston 417 move synchronously, so that the second one-way valve 420 and the third one-way valve 421 are alternately connected, and air is injected into the water pipe. After the air is mixed with the biological reagent, it is synchronously ejected from the injection hole 415, thereby improving the mixing efficiency of the biological reagent and the water body. At the same time, the water body is aerated to increase the oxygen content of the water body and accelerate the nitrification reaction rate; then the water body is injected into the lower part of the nitrification tank 1 through the water pipe 402, and under the action of the gear ring 427, the second rotating shaft 424 is driven to rotate synchronously, and the water body and the biological reagent are mixed again through the second stirring rod 425 to improve the uniformity of the water body.

[0034] When the motor 405 drives the first rotating shaft 403 to rotate, the rotating frame 422 is driven to rotate synchronously through the driving ring 505. When the second driving block 506 contacts the first driving block 504, the vibration block 502 is driven to move upward, and the liquid guide frame 501 is impacted to remove bubbles, so that the bubbles in the water float upward. Then the second spring 503 is reset, and the vibration block 502 is driven to move downward. This is repeated. When the vibration block 502 moves upward, it drives the second tooth plate 510 to move upward synchronously, and drives the first tooth plate 509 and the lifting plate 507 to move downward through the second gear 511. The floating bubbles are punctured by the acupuncture 508 to complete the defoaming work, reduce the oxygen content in the water, and provide an anaerobic environment for the denitrification reaction.

[0035] The defoamed water enters the denitrification tank 2 through the liquid guide frame 501 for denitrification reaction, and as the water level rises, the float 609 floats upward, and drives the first wedge 608 through the second wedge 610 to drive the third piston 606 to move backward, and the fifth one-way valve 613 is turned on, and the carbon source in the filling frame 605 is injected into the filling chamber 614 and mixed into the water through the third stirring rod 602 to ensure the growth of denitrifying bacteria and denitrification reaction.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A microbial denitrification device for landscape water treatment, characterized in that: The invention comprises a nitrification tank (1), a denitrification tank (2) and a drug injection mechanism (4), wherein the denitrification tank (2) is installed on the left side of the nitrification tank (1), a water inlet pipe (3) is installed on the side wall of the nitrification tank (1), and the drug injection mechanism (4) is installed on the surface of the nitrification tank (1) and is used to inject a biological reagent into a water body. The drug injection mechanism (4) comprises: A pretreatment box (401), the pretreatment box (401) is installed in the inner cavity of the nitrification tank (1), and the water inlet pipe (3) is connected to the pretreatment box (401); A reagent box (406), the reagent box (406) being mounted on the surface of the nitrification tank (1) and being used to store biological reagents, a drug injection barrel (407) being mounted at the bottom of the reagent box (406), a first piston (408) being slidably mounted in the inner cavity of the drug injection barrel (407), and a first one-way valve (413) being mounted on the side wall of the drug injection barrel (407); A branch pipe (414) is installed at the bottom of the pretreatment box (401), a plurality of injection holes (415) are provided between the branch pipe (414) and the pretreatment box (401), and a water pipe is connected between the branch pipe (414) and the injection barrel (407).

2. A microbial denitrification device for landscape water treatment according to claim 1, characterized in that: The bottom of the pretreatment box (401) is connected to a water pipe (402) for guiding water to the lower part of the nitrification tank (1). A first rotating shaft (403) is rotatably mounted in the inner cavity of the nitrification tank (1). The water pipe (402) is sleeved on the surface of the first rotating shaft (403). A plurality of first stirring rods (404) are fixedly mounted on the surface of the first rotating shaft (403) for premixing the biological reagent and the water. A motor (405) is fixedly mounted on the surface of the nitrification tank (1). The output end of the motor (405) is fixedly connected to one end of the first rotating shaft (403).

3. A microbial denitrification device for landscape water treatment according to claim 2, characterized in that: A first spring (409) is installed in the inner cavity of the injection barrel (407), one end of the first spring (409) is fixedly connected to the first piston (408) for driving the first piston (408) to move leftward, a first connecting rod (410) is fixedly installed on the side wall of the first piston (408), one end of the first connecting rod (410) is fixedly installed with an abutment plate (411), and a protrusion (412) is fixedly installed on the surface of the first rotating shaft (403), and the protrusion (412) is in contact with the surface of the abutment plate (411) for driving the first piston (408) to move rightward.

4. A microbial denitrification device for landscape water treatment according to claim 3, characterized in that: The inner cavity of the nitrification tank (1) is provided with an injection cavity (416), a second piston (417) is slidably mounted in the injection cavity (416), a second connecting rod (418) is fixedly mounted on the side wall of the second piston (417), a connecting plate (419) is fixedly mounted on one end of the second connecting rod (418), the connecting plate (419) is fixedly connected to the first connecting rod (410), a second one-way valve (420) and a third one-way valve (421) are mounted on the side wall of the injection cavity (416), and an air pipe is connected between the third one-way valve (421) and the water pipe.

5. A microbial denitrification device for landscape water treatment according to claim 4, characterized in that: A rotating frame (422) is fixedly mounted on the bottom of the first rotating shaft (403), and a stirring blade (423) is symmetrically fixedly mounted on the side wall of the rotating frame (422), and the stirring blade (423) is arranged in an inclined manner. A second rotating shaft (424) is symmetrically mounted on the side wall of the first rotating shaft (403), and a second stirring rod (425) is fixedly mounted on the side wall of the second rotating shaft (424) for re-mixing the biological reagent and the water body. A first gear (426) is fixedly mounted on one end of the second rotating shaft (424), and a gear ring (427) is fixedly mounted in the inner cavity of the nitrification tank (1), and the gear ring (427) is meshed with the first gear (426).

6. A microbial denitrification device for landscape water treatment according to claim 5, characterized in that: A defoaming mechanism (5) is installed between the nitrification tank (1) and the denitrification tank (2) for removing bubbles in the water. The defoaming mechanism (5) comprises a liquid guide frame (501) and a vibration block (502). The liquid guide frame (501) is installed between the nitrification tank (1) and the denitrification tank (2). The vibration block (502) is slidably installed in the inner cavity of the nitrification tank (1) for vibrating and removing bubbles from the water flowing through the liquid guide frame (501). Second springs (503) are fixedly installed on both sides of the vibration block (502). The second springs One end of (503) is fixedly connected to the liquid guide frame (501) and is used to drive the vibration block (502) to move downward. A first driving block (504) is fixedly installed on the bottom of the vibration block (502), and the bottom of the first driving block (504) is wedge-shaped. A driving ring (505) is fixedly installed on the surface of the rotating frame (422), and a second driving block (506) is fixedly installed on the surface of the driving ring (505). The surface of the second driving block (506) is wedge-shaped and is used to drive the first driving block (504) to move upward.

7. A microbial denitrification device for landscape water treatment according to claim 6, characterized in that: A lifting plate (507) is slidably mounted in the inner cavity of the liquid guiding frame (501); a needle (508) is fixedly mounted on the bottom of the lifting plate (507) for puncturing bubbles; a first tooth plate (509) is fixedly mounted on the side wall of the lifting plate (507); a second tooth plate (510) is fixedly mounted on the side wall of the vibration block (502); a second gear (511) is rotatably mounted on the side wall of the liquid guiding frame (501); and the first tooth plate (509) and the second tooth plate (510) are both meshed with the second gear (511).

8. A microbial denitrification device for landscape water treatment according to claim 7, characterized in that: The surface of the denitrification tank (2) is provided with a carbon adding mechanism (6) for adding a carbon source. The carbon adding mechanism (6) comprises a third rotating shaft (601), a filling frame (605) and a third piston (606). The third rotating shaft (601) is rotatably mounted in the inner cavity of the denitrification tank (2). A third stirring rod (602) is fixedly mounted on the surface of the third rotating shaft (601). A first pulley (603) is fixedly mounted on the surface of the third rotating shaft (601). A second pulley (606) is fixedly mounted on the surface of the first rotating shaft (403). A pulley (604), a belt is connected between the first pulley (603) and the second pulley (604), a filling frame (605) is installed on the side wall of the denitrification tank (2), a third piston (606) is slidably installed in the inner cavity of the filling frame (605), a third spring (607) is symmetrically fixedly installed in the inner cavity of the filling frame (605), one end of the third spring (607) is fixedly connected to the third piston (606) and is used to drive the third piston (606) to move toward the inner cavity of the denitrification tank (2).

9. A microbial denitrification device for landscape water treatment according to claim 8, characterized in that: A first wedge block (608) is fixedly mounted on the side wall of the third piston (606); a floating ring (609) is slidably mounted on the inner cavity of the denitrification tank (2); a second wedge block (610) is fixedly mounted on the side wall of the floating ring (609) for driving the first wedge block (608) to move; a carbon source box (611) is fixedly mounted on the surface of the filling frame (605) for storing carbon sources; a fourth one-way valve (612) is mounted on the side wall of the carbon source box (611); a water pipe is connected between the fourth one-way valve (612) and the filling frame (605); a fifth one-way valve (613) is mounted at the lower part of the filling frame (605); a filling chamber (614) is opened in the inner cavity of the denitrification tank (2); a water pipe is connected between the filling chamber (614) and the fifth one-way valve (613).

10. A method for denitrification of landscape water bodies by microorganisms, applicable to the device for denitrification of landscape water bodies by microorganisms as claimed in claim 9, characterized in that: The steps include: S1: nitrification reaction; landscape water is injected into the pretreatment tank (401) through the water inlet pipe (3), the first rotating shaft (403) is driven to rotate by the motor (405), driving the protrusion (412) to rotate synchronously, the biological reagent is injected into the branch pipe (414) through the first piston (408), and injected into the pretreatment tank (401) from the injection hole (415), and preliminarily mixed with the water through the first stirring rod (404), and air is injected into the water pipe through the second piston (417), so that the air and the biological reagent are mixed and then ejected synchronously from the injection hole (415), and then the water is injected into the lower part of the nitrification tank (1) through the water guide pipe (402), and the water and the biological reagent are mixed again through the second stirring rod (425), and the ammonia nitrogen in the water is converted into nitrate through nitrifying bacteria; S2: debubbling; the driving ring (505) drives the rotating frame (422) to rotate synchronously, drives the vibration block (502) to move upward, and impacts the liquid guide frame (501) to debubble, so that bubbles in the water float upward, and when the vibration block (502) moves upward, it drives the second tooth plate (510) to move upward synchronously, and drives the first tooth plate (509) and the lifting plate (507) to move downward through the second gear (511), and punctures the floating bubbles through the needle (508), thereby completing the debubbling work, reducing the oxygen content in the water, and providing an anaerobic environment for the denitrification reaction; S3: denitrification reaction; the water body after defoaming enters the denitrification tank (2) through the liquid guide frame (501) for denitrification reaction, and as the water level rises, the float (609) floats upward, and drives the first wedge (608) through the second wedge (610) to drive the third piston (606) to move backward, and the fifth one-way valve (613) is turned on, and the carbon source in the filling frame (605) is injected into the filling chamber (614) and mixed into the water body through the third stirring rod (602), thereby ensuring the growth of denitrifying bacteria and denitrification reaction, reducing nitrate to nitrogen gas, and thus removing nitrogen from the water.

Images