Nitrogen and phosphorus removal equipment for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses sewage treatment nitrogen and phosphorus removal equipment which comprises a treatment barrel, a purification mechanism is arranged at the top of the treatment barrel, and a stirring mechanism is arranged in the treatment barrel; the purification mechanism comprises an exhaust pipe, a filter is arranged at the top of the exhaust pipe, a protective net is fixedly connected to the top of the filter, and an HEPA filter net, an activated carbon adsorption layer and a zeolite layer are sequentially arranged in the filter from bottom to top; the stirring mechanism comprises a stirring rod, and the top end of the stirring rod is fixedly connected with a motor; the top of the treatment barrel is fixedly connected with a water inlet pipe, and one side of the treatment barrel is fixedly connected with a conveying pipe. According to the nitrogen and phosphorus removal equipment for sewage treatment, a multi-layer filtering design is adopted, efficient filtering materials such as the HEPA filtering net, the activated carbon adsorption layer and the zeolite layer are included, pollutants such as harmful gas, peculiar smell and suspended solids in sewage can be effectively removed, and the purification effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to sewage treatment denitrification and dephosphorization equipment. Background Art

[0002] Large-scale discharge of nitrogen and phosphorus elements will cause eutrophication of water bodies. Therefore, my country uses ammonia nitrogen and total phosphorus as important assessment indicators for evaluating the treatment effect of sewage treatment plants. At present, sewage treatment is mainly based on biological denitrification. The denitrification principle is to convert nitrogen elements in sewage into harmless nitrogen gas through aerobic nitrification and anoxic denitrification. The basic principle of denitrification and phosphorus removal sewage treatment process is to utilize the nitrification and denitrification of microorganisms and the phosphorus accumulation effect of phosphorus removal bacteria to convert nutrients such as nitrogen and phosphorus in sewage into harmless substances, thereby achieving the purpose of purifying water quality. During this period, sewage treatment denitrification and phosphorus removal equipment is required to fully integrate nitrification liquid, denitrification liquid, phosphorus removal bacteria and sewage. A small amount of residue will be produced during nitrification, and the optimal temperature for nitrification is around 30°.

[0003] According to Chinese patent announcement No. CN 221440516 U3, a sewage treatment denitrification and phosphorus removal device is disclosed, including an outer shell, a heating layer is fixedly connected to the inside of the outer shell, an inner shell is fixedly connected to the inside of the heating layer, a main shaft is rotatably connected to the inner side of the inner shell, a rotating shaft is passed through one side of the main shaft and is rotatably connected, one end of the rotating shaft is fixedly connected to a stirring plate, a limiting block is fixedly connected to the outside of the rotating shaft relative to the internal position of the main shaft, and a partition is fixedly connected to the position of the bottom end of the heating layer in the inner shell. In the utility model, stirring in different directions up, down, left and right is achieved by setting components such as the main shaft, rotating shaft, limiting block and stirring plate, so that the nitrification liquid, denitrification liquid and phosphorus removal bacteria are fully stirred and fused with the sewage, thereby solving the problem of traditional sewage treatment denitrification and phosphorus removal equipment, in which the sewage is often not sufficiently stirred with the nitrification liquid, denitrification liquid and phosphorus removal bacteria, resulting in a prolonged purification cycle and a waste of a lot of time.

[0004] However, the above equipment does not treat the waste gas generated during the sewage treatment process. These waste gases often contain harmful substances such as ammonia, sulfides, and volatile organic compounds. If they are directly discharged into the atmosphere without effective treatment, they will seriously pollute the air environment and cause long-term impacts on human health and the ecosystem. Utility Model Content

[0005] The purpose of the utility model is to provide a sewage treatment denitrification and dephosphorization device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a sewage treatment denitrification and dephosphorization device, comprising a treatment barrel, a purification mechanism is provided on the top of the treatment barrel, and a stirring mechanism is provided inside the treatment barrel;

[0007] The purification mechanism includes an exhaust pipe, a filter is connected to the top of the exhaust pipe, a protective net is fixed to the top of the filter with screws, and a HEPA filter, an activated carbon adsorption layer and a zeolite layer are arranged in sequence from bottom to top inside the filter;

[0008] The stirring mechanism comprises a stirring rod, and a motor is fixedly connected to the top end of the stirring rod.

[0009] Preferably, a water inlet pipe is fixedly connected to the top of the treatment barrel, a delivery pipe is fixedly connected to one side of the treatment barrel, one end of the delivery pipe is fixedly connected to a feed frame, a discharge pipe is fixedly connected to the bottom of the treatment barrel, and a switch valve is installed in the discharge pipe.

[0010] Furthermore, the water inlet pipe is fixedly connected to the top of the treatment barrel for injecting the sewage to be treated into the treatment barrel. One end of the delivery pipe is fixedly connected to the side wall of the treatment barrel, and the other end is connected to the feed frame for adding the chemical agents or other treatment materials required for denitrification and phosphorus removal into the treatment barrel. The discharge pipe is fixedly connected to the bottom of the treatment barrel for discharging treated sewage or sediment. The switch valve is installed in the discharge pipe for controlling the discharge process.

[0011] Preferably, a connecting ring is fixedly connected to the outer side of the bottom of the processing barrel, a supporting leg is fixedly connected to the bottom of the connecting ring, and an anti-skid plate is fixedly connected to the bottom of the supporting leg.

[0012] Furthermore, the connecting ring is fixedly connected to the outside of the bottom of the processing barrel, serving as the basis of the supporting structure. The supporting legs are fixedly connected to the connecting ring to support the entire processing equipment, ensuring its stability. The anti-skid plate is fixedly connected to the bottom of the supporting legs to increase friction with the ground and prevent the equipment from sliding during use.

[0013] Preferably, four supporting legs and four anti-slip plates are provided, and the four supporting legs are located at the bottom of the connecting ring and distributed in a circular array.

[0014] Furthermore, there are four support legs and four anti-skid plates, and the four support legs are located at the bottom of the connecting ring and distributed in a circular array, ensuring that the equipment is subjected to balanced force in all directions and further enhancing the stability of the equipment.

[0015] Preferably, the exhaust pipe is fixedly connected to the top of the processing barrel.

[0016] Furthermore, the exhaust pipe is fixedly connected to the top of the treatment barrel so that gases such as waste gas generated during the treatment process can be discharged smoothly, avoiding accumulation in the treatment barrel, affecting the treatment effect or causing safety hazards.

[0017] Preferably, the stirring rod is rotatably connected to the inside of the processing barrel.

[0018] Furthermore, the stirring rod is connected to the treatment barrel by rotation, and can stir the sewage under the drive of the motor, promote the full mixing of the sewage and the chemical agents, and improve the efficiency of denitrification and phosphorus removal.

[0019] Preferably, the motor is fixedly connected to the top of the processing barrel.

[0020] Furthermore, the motor serves as the power source of the stirring mechanism and is fixedly connected to the top of the processing barrel, which is convenient for installation and maintenance and can ensure the stable operation of the stirring rod.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0022] First, the utility model first introduces the sewage to be treated into the treatment barrel through the water inlet pipe fixed on the top of the treatment barrel. When introducing sewage, attention should be paid to controlling the water inlet volume to avoid overloading the treatment barrel. Necessary denitrification and dephosphorization treatment agents or other chemical agents are added to the treatment barrel through the delivery pipe and the feed frame. When adding the treatment agent, the required treatment dosage should be accurately calculated according to the nature and pollution degree of the sewage, and added evenly to ensure the treatment effect. The motor is started, and the motor drives the stirring rod to rotate inside the treatment barrel. During the treatment process, the generated gases such as ammonia are discharged through the exhaust pipe. These gases are purified by passing through the multi-layer filter material HEPA filter, activated carbon adsorption layer and zeolite layer in the filter. The exhaust gas first passes through the HEPA filter to remove particulate matter, and then passes through the activated carbon adsorption layer. The carbon adsorption layer adsorbs organic gases and odors, and finally passes through the zeolite layer for final purification treatment to remove harmful gases and odors. The use of the filter should be checked regularly, the filter should be removed from the top of the exhaust pipe, and the screws of the protective net on the top of the filter should be removed with tools. The multi-layer filter materials in the filter should be cleaned or replaced, and damaged or expired filter materials should be replaced in time to ensure the purification effect. After the treatment is completed, open the switch valve in the discharge pipe to discharge the treated sewage. It can be tested before discharge to ensure that the treated water quality meets the discharge standards. The multi-layer filtration design, including HEPA filter, activated carbon adsorption layer and zeolite layer and other high-efficiency filter materials, can effectively remove harmful gases, odors, suspended matter and other pollutants in sewage, thereby improving the purification effect.

[0023] Second, the utility model starts the motor, and the motor drives the stirring rod to rotate inside the treatment barrel. The rotation of the stirring rod fully mixes the sewage and the treatment agent to form a uniform mixed liquid, thereby improving the reaction rate and the denitrification and phosphorus removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the purification mechanism structure of the utility model.

[0028] Among them: 1. Treatment barrel; 101. Water inlet pipe; 102. Delivery pipe; 103. Feed frame; 104. Discharge pipe; 105. Switch valve; 106. Connecting ring; 107. Support leg; 108. Anti-skid plate; 2. Purification mechanism; 201. Exhaust pipe; 202. Filter; 203. Protective net; 204. HEPA filter; 205. Activated carbon adsorption layer; 206. Zeolite layer; 3. Stirring mechanism; 301. Stirring rod; 302. Motor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The utility model provides the following technical solutions:

[0031] Example 1

[0032] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , a sewage treatment denitrification and dephosphorization device, comprising a treatment barrel 1, a purification mechanism 2 is provided on the top of the treatment barrel 1, and a stirring mechanism 3 is provided inside the treatment barrel 1;

[0033] The purification mechanism 2 includes an exhaust pipe 201, a filter 202 is snap-connected to the top of the exhaust pipe 201, a protective net 203 is fixed to the top of the filter 202 with screws, and a HEPA filter 204, an activated carbon adsorption layer 205 and a zeolite layer 206 are arranged inside the filter 202 from bottom to top.

[0034] The stirring mechanism 3 includes a stirring rod 301 , and a motor 302 is fixedly connected to the top end of the stirring rod 301 .

[0035] Specifically, a water inlet pipe 101 is fixedly connected to the top of the processing barrel 1, a delivery pipe 102 is fixedly connected to one side of the processing barrel 1, one end of the delivery pipe 102 is fixedly connected to a feed frame 103, and a discharge pipe 104 is fixedly connected to the bottom of the processing barrel 1, and a switch valve 105 is installed in the discharge pipe 104.

[0036] Specifically, a connecting ring 106 is fixedly connected to the outer side of the bottom of the processing barrel 1 , a supporting leg 107 is fixedly connected to the bottom of the connecting ring 106 , and an anti-skid plate 108 is fixedly connected to the bottom of the supporting leg 107 .

[0037] Specifically, four support legs 107 and four anti-slide plates 108 are provided, and the four support legs 107 are located at the bottom of the connecting ring 106 and distributed in a circular array.

[0038] Specifically, the exhaust pipe 201 is fixedly connected to the top of the processing barrel 1 .

[0039] According to the above technical solution, first, the sewage to be treated is introduced into the treatment barrel 1 through the water inlet pipe 101 fixed on the top of the treatment barrel 1. When introducing the sewage, attention should be paid to controlling the water inlet volume to avoid overloading the treatment barrel 1. The necessary denitrification and dephosphorization treatment agents or other chemical agents are added to the treatment barrel 1 through the delivery pipe 102 and the feed frame 103. When adding the treatment agent, the required treatment dosage should be accurately calculated according to the nature and pollution degree of the sewage, and the dosage should be uniformly added to ensure the treatment effect. The motor 302 is started, and the motor 302 drives the stirring rod 301 to rotate inside the treatment barrel 1. During the treatment process, the generated gases such as ammonia are discharged through the exhaust pipe 201. These gases are purified by passing through the multi-layer filter material HEPA filter 204, the activated carbon adsorption layer 205 and the zeolite layer 206 in the filter 202. The exhaust gas first passes through the HEPA filter 204 to remove particulate matter, and then passes through the activated carbon adsorption layer 205. The carbon adsorption layer 205 adsorbs organic gases and odors, and finally passes through the zeolite layer 206 for final purification treatment to remove harmful gases and odors. The use of the filter 202 should be checked regularly, and the filter 202 should be removed from the top of the exhaust pipe 201. Use tools to remove the screws of the protective net 203 on the top of the filter 202 and remove the protective net 203. Clean or replace the multi-layer filter materials in the filter 202, and replace damaged or expired filter materials in time to ensure the purification effect. After the treatment is completed, open the switch valve 105 in the discharge pipe 104 to discharge the treated sewage. It can be tested before discharge to ensure that the treated water quality meets the discharge standards. The multi-layer filtration design, including HEPA filter 204, activated carbon adsorption layer 205 and zeolite layer 206 and other high-efficiency filter materials, can effectively remove harmful gases, odors, suspended matter and other pollutants in the sewage, thereby improving the purification effect.

[0040] Example 2

[0041] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , and on the basis of Example 1, it is further obtained that: the stirring rod 301 is rotatably connected to the inside of the processing barrel 1.

[0042] Specifically, the motor 302 is fixedly connected to the top of the processing barrel 1 .

[0043] Through the above technical solution, the motor 302 is started. The internal circuit connection of the motor 302 is the existing technology and will not be described in detail here. The motor 302 drives the stirring rod 301 to rotate inside the treatment barrel 1. The rotation of the stirring rod 301 allows the sewage and the treatment agent to be fully mixed to form a uniform mixed liquid, thereby improving the reaction rate and the denitrification and phosphorus removal effect. The sewage and the treatment agent are fully mixed to form a uniform mixed liquid, thereby improving the reaction rate and the denitrification and phosphorus removal effect.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit thereof, and the scope is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment denitrification and dephosphorization device, comprising a treatment barrel (1), characterized in that: A purification mechanism (2) is provided on the top of the processing barrel (1), and a stirring mechanism (3) is provided inside the processing barrel (1); The purification mechanism (2) comprises an exhaust pipe (201), a filter (202) is snap-connected to the top of the exhaust pipe (201), a protective net (203) is fixedly connected to the top of the filter (202) by screws, and a HEPA filter (204), an activated carbon adsorption layer (205) and a zeolite layer (206) are sequentially arranged inside the filter (202) from bottom to top; The stirring mechanism (3) comprises a stirring rod (301), and a motor (302) is fixedly connected to the top end of the stirring rod (301).

2. The sewage treatment denitrification and phosphorus removal equipment according to claim 1, characterized in that: The top of the treatment barrel (1) is fixedly connected to a water inlet pipe (101), one side of the treatment barrel (1) is fixedly connected to a delivery pipe (102), one end of the delivery pipe (102) is fixedly connected to a feed frame (103), and the bottom of the treatment barrel (1) is fixedly connected to a discharge pipe (104), and a switch valve (105) is installed in the discharge pipe (104).

3. The sewage treatment denitrification and phosphorus removal equipment according to claim 1, characterized in that: The outer side of the bottom of the treatment barrel (1) is fixedly connected to a connecting ring (106), the bottom of the connecting ring (106) is fixedly connected to a supporting leg (107), and the bottom of the supporting leg (107) is fixedly connected to an anti-slide plate (108).

4. The sewage treatment denitrification and phosphorus removal equipment according to claim 3, characterized in that: Four supporting legs (107) and four anti-slide plates (108) are provided, and the four supporting legs (107) are located at the bottom of the connecting ring (106) and distributed in a circular array.

5. The sewage treatment denitrification and phosphorus removal equipment according to claim 1, characterized in that: The exhaust pipe (201) is fixedly connected to the top of the processing barrel (1).

6. The sewage treatment denitrification and phosphorus removal equipment according to claim 1, characterized in that: The stirring rod (301) is rotatably connected to the inside of the processing barrel (1).

7. The sewage treatment denitrification and phosphorus removal equipment according to claim 1, characterized in that: The motor (302) is fixedly connected to the top of the processing barrel (1).

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