Microbial carrier for sewage treatment

Abstract

The invention discloses a microbial carrier for sewage treatment, and relates to the technical field of sewage treatment.The microbial carrier comprises a carrier reaction mechanism and a one-way valve installed at the top of the carrier reaction mechanism, a sewage filtering mechanism is arranged at the top of the carrier reaction mechanism, and a protective support is arranged on the outer side of the sewage filtering mechanism; the carrier reaction mechanism comprises a carrier reaction box, a precipitation tank is formed in the bottom of the carrier reaction box, a plurality of mounting holes are formed in the top of the carrier reaction box, one side of the carrier reaction box is in threaded connection with a sealing threaded block, and a mounting plate is fixedly mounted on the outer side of the sealing threaded block; the vertical carrier grid plates and the arc-shaped carrier grid plates are utilized to facilitate fixation of microbial carriers, the vertical carrier grid plates are uniformly arranged around the aeration rotating roller, and meanwhile, the arc-shaped carrier grid plates are arranged on the two sides of the vertical carrier grid plates in a staggered manner, so that the fixed number of the microbial carriers can be increased, and sufficient purification of sewage is facilitated.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a microbial carrier for wastewater treatment. Background Technology

[0002] In the treatment of urban and industrial wastewater, the most commonly used biological treatment methods are activated sludge and biofilm processes. Activated sludge is the earliest and most mature process in the field of biological wastewater treatment. However, the activated sludge process has many problems in use, such as large footprint, large amount of residual sludge, poor denitrification effect, high management cost, and easy occurrence of sludge bulking and sludge loss. On the other hand, the biofilm process has a higher organic load, shorter contact retention time, reduces footprint, and saves investment. In addition, there are no problems of sludge bulking and sludge return when operating and managing the biofilm process. The microbial carrier, as the material that provides the attachment and fixed surface for the biofilm, is the key to the biofilm treatment process.

[0003] Publication No. CN107651748A discloses a microbial carrier for wastewater treatment. The carrier is designed with three layers: an outer ring, a middle ring, and an inner ring. Each layer adsorbs a microbial film, increasing the carrier's specific surface area, porosity, and filling rate. By providing raised strips on the inner and outer surfaces of the outer, middle, and inner rings, it achieves a balance between high efficiency and the ability to expand treatment capacity in the long term without increasing the wastewater tank capacity. It also easily increases the microbial concentration within the system. However, this patent still has the following problems in practical use: Although the microbial carrier for wastewater treatment is designed with three layers—outer, middle, and inner—to adsorb microbial films layer by layer, thereby increasing the specific surface area, porosity, and carrier filling rate, it cannot guarantee sufficient reaction between wastewater and microorganisms when using microorganisms to purify wastewater. This results in incomplete wastewater purification. Furthermore, the core principle of microbial carrier wastewater treatment is to utilize the metabolic activities of microorganisms to decompose organic pollutants in wastewater, converting them into harmless substances such as carbon dioxide, water, or methane. However, as the microorganisms purify the wastewater, their activity decreases, leading to incomplete purification and affecting the overall effectiveness of wastewater treatment.

[0004] Therefore, a microbial carrier for wastewater treatment is proposed to address the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a microbial carrier for wastewater treatment, in order to solve the problem mentioned in the background art where, when using microorganisms to purify wastewater, it is impossible to guarantee sufficient reaction between the wastewater and the microorganisms, resulting in incomplete wastewater purification. Furthermore, the core principle of microbial carrier wastewater treatment is to utilize the metabolic activities of microorganisms to decompose organic pollutants in wastewater, converting them into harmless substances such as carbon dioxide, water, or methane. However, as the microorganisms purify the wastewater, their activity decreases, leading to incomplete purification and affecting the wastewater purification effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a microbial carrier for wastewater treatment, comprising a carrier reaction mechanism and a one-way valve installed on the top of the carrier reaction mechanism; The top of the carrier reaction mechanism is equipped with a sewage filtration mechanism, and a protective support is provided on the outside of the sewage filtration mechanism. Also includes: The carrier reaction mechanism includes a carrier reaction chamber, the bottom of which is provided with a sedimentation tank, and the top of which is provided with several mounting holes. The carrier reaction chamber is threaded with a sealing threaded block on one side, and an installation plate is fixedly installed on the outside of the sealing threaded block. An aeration device is fixedly installed at the center of the outer side of the mounting plate, and an aeration connection pipe is fixedly connected to the output end of the aeration device.

[0007] Preferably, a rotating motor is fixedly installed on the side of the carrier reaction tank away from the aeration equipment. An aeration rotating roller is fixedly connected to the output end of the rotating motor. The aeration rotating roller is rotatably connected to the aeration connecting pipe. Several mounting blocks are fixedly installed at both ends of the aeration rotating roller. The mounting blocks are internally threaded with mounting bolts.

[0008] Preferably, a vertical carrier grid plate is snapped into the inside of the mounting block, and the vertical carrier grid plate is fixedly installed with mounting bolts. Arc-shaped carrier grid plates are fixedly installed on both sides of the vertical carrier grid plate, and the arc-shaped carrier grid plates are arranged alternately. A sewage discharge bracket is fixedly installed at the bottom of the carrier reaction tank near the sedimentation tank.

[0009] Preferably, a sewage discharge motor is fixedly installed at one end of the sewage discharge bracket, a sewage discharge rotating rod is fixedly connected to the output end of the sewage discharge motor, a sewage discharge auger is fixedly installed on the outside of the sewage discharge rotating rod, a sewage discharge pipe is fixedly installed on one side of the bottom of the sewage discharge bracket, and a sewage discharge valve is provided inside the sewage discharge pipe.

[0010] Preferably, the one-way valve is fixedly installed inside the mounting hole, a valve bracket is fixedly installed on the top inner side of the one-way valve, a valve telescopic rod is fixedly installed on the bottom of the valve bracket, a valve spring is fixedly installed on the outer side of the valve bracket near the valve telescopic rod, and a valve piston is fixedly installed on the bottom of the valve telescopic rod and the valve spring.

[0011] Preferably, the wastewater filtration mechanism includes a wastewater filtration box, with fixed supports fixedly installed on both sides of the bottom of the wastewater filtration box, and support legs symmetrically installed on the bottom of the two fixed supports. A connecting groove is fixedly installed on the bottom of the wastewater filtration box, and the connecting groove is fixedly installed on the top of the carrier reaction box.

[0012] Preferably, a feed hopper is fixedly installed on the top of the wastewater filter box, and impurity collection boxes are fixedly installed on the top of the wastewater filter box near the fixed support. The protective support is fixedly installed on the outside of the wastewater filter box, and a filter motor is fixedly installed at one end of the protective support. A filter rotating rod is fixedly connected to the output end of the filter motor.

[0013] Preferably, bevel gear transmission assemblies are symmetrically installed on the outer side of the filter rotating rod, and a rotating connecting shaft is fixedly installed on one side of each of the two bevel gear transmission assemblies. A filter rotating roller is fixedly installed on the side of each of the two rotating connecting shafts away from the bevel gear transmission assemblies, and a screen mounting groove is opened around the inside of the filter rotating roller.

[0014] Preferably, a filter screen is fixedly installed inside the filter rotating roller near the screen mounting groove, and cleaning grooves are symmetrically opened on the outer side of the filter rotating roller. Gravity sliders are slidably connected inside the two cleaning grooves, and cleaning brushes are fixedly installed on the outer side of the two gravity sliders. The cleaning brushes are in contact with the surface of the filter screen.

[0015] Compared with the prior art, the beneficial effects of this invention are as follows: This microbial carrier for wastewater treatment utilizes vertical and arc-shaped carrier grid plates to facilitate the fixation of the microbial carrier. The vertical carrier grid plates are evenly arranged around the aeration rotating roller, while the arc-shaped carrier grid plates are staggered on both sides of the vertical carrier grid plates, thereby increasing the number of microbial carriers fixed and facilitating thorough wastewater purification. When gas is introduced, the high internal pressure of the carrier reaction chamber causes the airflow to push the valve piston inside the one-way valve. When the valve piston separates from the bottom of the one-way valve, the wastewater at the top enters the carrier reaction chamber through the one-way valve, where it can react with the microorganisms. The biological reaction proceeds fully. When the carrier reaction tank is full of wastewater, gas flow is stopped, and the one-way valve closes, allowing a fixed amount of wastewater to be introduced into the carrier reaction tank, thus achieving quantitative wastewater purification. When the filter screen plate carrying impurities rotates to a vertical position, the impurities fall to the back of the adjacent filter screen plate. Continuing to rotate the filter roller, under the influence of gravity, the gravity slider slides inside the cleaning trough, simultaneously driving the cleaning brush to move on the surface of the filter screen plate, thereby cleaning the impurities from the filter screen plate surface and collecting them in the impurity collection box. This not only achieves automatic impurity cleaning but also improves the filtration efficiency of the filter screen plate. The specific details are as follows: 1. By setting up a carrier reaction mechanism, not only can vertical and arc-shaped carrier grid plates be used to facilitate the fixation of microbial carriers, but the vertical carrier grid plates are also evenly arranged around the aeration rotating roller, while the arc-shaped carrier grid plates are staggered on both sides of the vertical carrier grid plates. This increases the number of microbial carriers fixed, facilitating thorough wastewater purification. When the aeration equipment is started, gas is introduced into the interior of the aeration rotating roller through the aeration connection pipe. Simultaneously, the rotating motor drives the aeration rotating roller to rotate, enabling a thorough reaction between the microbial carriers and the wastewater, thereby improving the wastewater purification effect. For anaerobic microorganisms, nitrogen and carbon dioxide gases can be introduced. When nitrogen is introduced into the solution, according to Henry's Law, the partial pressure of oxygen at the solution surface decreases, causing dissolved oxygen to escape. Carbon dioxide mixes with oxygen and carries the oxygen out of the device through physical means (such as gas flow), thereby reducing the oxygen concentration and providing an anaerobic environment for anaerobic microorganisms, thus increasing their activity. For aerobic microorganisms, oxygen is introduced to enhance their activity. This system improves wastewater purification efficiency. The use of bolts and threaded connections between the vertical carrier grid plate and the mounting block allows for the removal of the vertical and curved carrier grid plates from the carrier reaction chamber for replacement. During gas introduction, the high internal pressure of the carrier reaction chamber pushes the valve piston inside the one-way valve. When the valve piston separates from the bottom of the one-way valve, the wastewater at the top enters the carrier reaction chamber through the one-way valve, allowing for a thorough reaction with microorganisms. When the carrier reaction chamber is full of wastewater, gas flow is stopped, and the one-way valve closes, facilitating the introduction of a fixed amount of wastewater into the carrier reaction chamber. This achieves quantitative wastewater purification, preventing insufficient purification due to excessive wastewater. The purified wastewater is discharged through the drain pipe by opening the drain valve. When cleaning the sludge sediment inside the drain support is required, the drain motor is started to drive the drain rotating rod and drain auger, utilizing the structural features of the drain auger to discharge the sludge. 2. By setting up a sewage filtration mechanism, not only can the filter screens inside the sewage filtration box perform preliminary filtration of sewage, but also, because the filter screens are evenly installed in the screen mounting slots inside the two rotating filter rollers, and the two filter screens are arranged parallel to each other, the sewage can be filtered twice, thereby improving the filtration effect. At the same time, starting the filter motor drives the rotating filter rod and the bevel gear transmission assembly to rotate, which in turn drives the rotating connecting shaft and the rotating filter roller to rotate, enabling the switching of the filter screens, thereby improving the filtration effect of the filter screens. When the filter screen carrying impurities rotates to the vertical direction, the impurities fall to the back of the adjacent filter screen. As the rotating filter roller continues to rotate, under the action of gravity, the gravity slider slides inside the cleaning chute, while driving the cleaning brush to move on the surface of the filter screen, thereby cleaning the impurities on the surface of the filter screen and collecting them in the impurity collection box. This not only achieves automatic cleaning of impurities, but also improves the filtration effect of the filter screen. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the carrier reaction mechanism in this invention; Figure 3 This is a three-dimensional structural diagram of the carrier reaction chamber in this invention. Figure 4 This is a three-dimensional structural diagram of the vertical carrier grid plate and the arc-shaped carrier grid plate in this invention; Figure 5 This is a three-dimensional structural diagram of the rotating motor and the aeration rotating roller in this invention; Figure 6 This is a three-dimensional structural diagram of the mounting block and mounting bolts in this invention; Figure 7 This is a three-dimensional cross-sectional structural diagram of the sewage discharge support in this invention; Figure 8 This is a three-dimensional cross-sectional structural diagram of the one-way valve in this invention; Figure 9 This is a three-dimensional cross-sectional structural diagram of the wastewater filtration mechanism in this invention; Figure 10 This is a three-dimensional structural diagram of the filter rotating rod and bevel gear transmission assembly in this invention; Figure 11 This is a three-dimensional cross-sectional structural diagram of the filter screen in this invention.

[0017] In the diagram: 1. Carrier reaction mechanism; 101. Carrier reaction box; 102. Sedimentation tank; 103. Mounting hole; 104. Sealing threaded block; 105. Mounting plate; 106. Aeration equipment; 107. Aeration connecting pipe; 108. Rotating motor; 109. Aeration rotating roller; 110. Mounting block; 111. Mounting bolt; 112. Vertical carrier grid plate; 113. Arc-shaped carrier grid plate; 114. Sewage discharge bracket; 115. Sewage discharge motor; 116. Sewage discharge rotating rod; 117. Sewage discharge auger; 118. Sewage discharge pipe; 119. Sewage discharge valve; 120. Check valve; 121. 1. Valve support; 122. Valve telescopic rod; 123. Valve spring; 124. Valve piston; 2. Wastewater filtration mechanism; 201. Wastewater filter box; 202. Fixed bracket; 203. Support leg; 204. Connecting groove; 205. Feed hopper; 206. Impurity collection box; 207. Protective bracket; 208. Filter motor; 209. Filter rotating rod; 210. Bevel gear transmission assembly; 211. Rotating connecting shaft; 212. Filter rotating roller; 213. Mesh plate mounting groove; 214. Filter mesh plate; 215. Cleaning chute; 216. Gravity slider; 217. Cleaning brush. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-5The present invention provides a technical solution: a microbial carrier for wastewater treatment, comprising a carrier reaction mechanism 1 and a one-way valve 120 installed on the top of the carrier reaction mechanism 1. A wastewater filtration mechanism 2 is provided on the top of the carrier reaction mechanism 1, and a protective bracket 207 is provided on the outer side of the wastewater filtration mechanism 2. The carrier reaction mechanism 1 includes a carrier reaction tank 101, a sedimentation tank 102 is provided at the bottom of the carrier reaction tank 101, and several mounting holes 103 are provided on the top of the carrier reaction tank 101. A sealing threaded block 104 is threadedly connected to one side of the carrier reaction tank 101, and an mounting plate 105 is fixedly installed on the outer side of the sealing threaded block 104. An aeration device is fixedly installed at the center of the outer side of the mounting plate 105. 106. An aeration connecting pipe 107 is fixedly connected to the output end of the aeration device 106. A rotating motor 108 is fixedly installed on the side of the carrier reaction tank 101 away from the aeration device 106. An aeration rotating roller 109 is fixedly connected to the output end of the rotating motor 108. The aeration rotating roller 109 is rotatably connected to the aeration connecting pipe 107. Several mounting blocks 110 are fixedly installed at both ends of the aeration rotating roller 109. Mounting bolts 111 are threaded inside the mounting blocks 110. A vertical carrier grid plate 112 is snapped into the inside of the mounting blocks 110. The vertical carrier grid plate 112 is connected to the mounting bolts 111. Arc-shaped carrier grid plates 113 are fixedly installed on both sides of the vertical carrier grid plate 112. The alternating arrangement of vertical carrier grid plates 112 and arc-shaped carrier grid plates 113 facilitates the fixation of microbial carriers. The vertical carrier grid plates 112 are evenly arranged around the aeration rotating roller 109, while the arc-shaped carrier grid plates 113 are staggered on both sides of the vertical carrier grid plates 112. This increases the number of microbial carriers fixed, facilitating thorough wastewater purification. When the aeration device 106 is started, gas is introduced into the aeration rotating roller 109 through the aeration connecting pipe 107. Simultaneously, the rotating motor 108 is started to drive the aeration rotating roller 109 to rotate, enabling a full reaction between the microbial carriers and the wastewater, thereby improving the wastewater purification effect. For anaerobic microorganisms, nitrogen and carbon dioxide gases can be introduced. After gas is introduced into the solution, according to Henry's Law, the partial pressure of oxygen at the solution surface decreases, causing dissolved oxygen to escape. After carbon dioxide mixes with oxygen, oxygen is carried out of the device through physical means such as gas flow, thereby reducing the oxygen concentration and providing an anaerobic environment for anaerobic microorganisms, thus improving the activity of microorganisms. For aerobic microorganisms, the activity of microorganisms is improved by introducing oxygen, which can improve the efficiency of sewage purification. Due to the threaded connection between the mounting bolt 111 and the vertical carrier grid plate 112 and the mounting block 110, the vertical carrier grid plate 112 and the arc-shaped carrier grid plate 113 can be removed from the inside of the carrier reaction tank 101 for replacement.

[0020] Please see Figures 2-8A drain support 114 is fixedly installed at the bottom of the carrier reaction tank 101 near the sedimentation tank 102. A drain motor 115 is fixedly installed at one end of the drain support 114. A drain rotating rod 116 is fixedly connected to the output end of the drain motor 115. A drain auger 117 is fixedly installed on the outside of the drain rotating rod 116. A drain pipe 118 is fixedly installed on one side of the bottom of the drain support 114. A drain valve 119 is installed inside the drain pipe 118. A one-way valve 120 is fixedly installed inside the mounting hole 103. A valve support 121 is fixedly installed on the top inner side of the one-way valve 120. A valve telescopic rod 122 is fixedly installed at the bottom of the valve support 121. A valve spring 123 is fixedly installed on the outside of the valve support 121 near the valve telescopic rod 122. A valve piston 124 is fixedly installed at the bottom of the valve telescopic rod 122 and the valve spring 123. When gas is introduced, due to... The carrier reaction chamber 101 has a high internal pressure, which causes the airflow to push the valve piston 124 inside the one-way valve 120. When the valve piston 124 separates from the bottom of the one-way valve 120, the sewage at the top enters the carrier reaction chamber 101 through the one-way valve 120, where it can fully react with microorganisms. When the carrier reaction chamber 101 is full of sewage, the gas flow is stopped, and the one-way valve 120 closes, allowing a fixed amount of sewage to be introduced into the carrier reaction chamber 101, thereby achieving quantitative purification of sewage and avoiding insufficient purification due to excessive sewage. By opening the drain valve 119, the purified sewage is discharged through the drain pipe 118. When it is necessary to clean the sludge sediment inside the drain support 114, the drain motor 115 is started to drive the drain rotating rod 116 and the drain auger 117 to rotate. Utilizing the structural characteristics of the drain auger 117, the sludge can be discharged.

[0021] Please see Figure 1 , Figures 9-11The wastewater filtration mechanism 2 includes a wastewater filter box 201. Fixed supports 202 are fixedly installed on both sides of the bottom of the wastewater filter box 201. Support legs 203 are symmetrically installed on the bottom of each of the two fixed supports 202. A connecting groove 204 is fixedly installed on the bottom of the wastewater filter box 201 and is fixedly installed on the top of the carrier reaction chamber 101. A feed hopper 205 is fixedly installed on the top of the wastewater filter box 201. Impurity collection boxes 206 are fixedly installed on the top of the wastewater filter box 201 near the fixed supports 202. A protective support 207 is fixedly installed on the outside of the wastewater filter box 201, and a filter motor 20 is fixedly installed at one end of the protective support 207. 8. A filter rotating rod 209 is fixedly connected to the output end of the filter motor 208. A bevel gear transmission assembly 210 is symmetrically installed on the outer side of the filter rotating rod 209. A rotating connecting shaft 211 is fixedly installed on one side of each of the two bevel gear transmission assemblies 210. A filter rotating roller 212 is fixedly installed on the side of each of the two rotating connecting shafts 211 away from the bevel gear transmission assembly 210. A screen mounting groove 213 is formed around the inside of the filter rotating roller 212. A filter screen 214 is fixedly installed inside the filter rotating roller 212 near the screen mounting groove 213. Cleaning grooves 215 are symmetrically formed on the outer side of the filter rotating roller 212. The two cleaning grooves 215 have sliding grooves inside. The wastewater is initially filtered by the filter screen 214, which is connected to a gravity slider 216. Cleaning brushes 217 are fixedly installed on the outer sides of both gravity sliders 216. The cleaning brushes 217 are in contact with the surface of the filter screen 214. The filter screen 214 inside the wastewater filter box 201 performs initial filtration. Since the filter screen 214 is evenly installed in the screen mounting grooves 213 inside the two filter rotating rollers 212, and the two filter screens 214 are arranged parallel vertically, double filtration of the wastewater is achieved, thereby improving the filtration effect. Simultaneously, the filter motor 208 is started, driving the filter rotating rod 209 and the bevel gear transmission assembly 210 to rotate, causing the bevel gear transmission assembly 210 to rotate... The rotation of the connecting shaft 211 and the filter rotating roller 212 enables the switching of the filter screen 214, thereby improving the filtration effect of the filter screen 214. When the filter screen 214 carrying impurities rotates to the vertical direction, the impurities fall to the back of the adjacent filter screen 214. As the filter rotating roller 212 continues to rotate, under the action of gravity, the gravity slider 216 slides inside the cleaning groove 215, while driving the cleaning brush 217 to move on the surface of the filter screen 214, thereby cleaning the impurities on the surface of the filter screen 214 and collecting them in the impurity collection box 206. This not only enables automatic cleaning of impurities but also improves the filtration effect of the filter screen 214.

[0022] Working principle: Before using this type of microbial carrier for wastewater treatment, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 11As shown, firstly, the wastewater is initially filtered using the filter screen 214 installed inside the wastewater filter box 201. Since the filter screen 214 is evenly installed in the screen mounting grooves 213 inside the two filter rotating rollers 212, and the two filter screens 214 are arranged parallel vertically, the wastewater can be filtered twice, thus improving the filtration effect. Simultaneously, the filter motor 208 is started, driving the filter rotating rod 209 and the bevel gear transmission assembly 210 to rotate. This causes the bevel gear transmission assembly 210 to drive the rotating connecting shaft 211 and the filter rotating rollers 212 to rotate, enabling the filter screen 214 to rotate. The switching of filter screen 214 improves the filtration effect of filter screen 214. When the filter screen 214 carrying impurities rotates to the vertical direction, the impurities fall to the back of the adjacent filter screen 214. The filter rotating roller 212 continues to rotate. Under the action of gravity, the gravity slider 216 slides inside the cleaning groove 215, while driving the cleaning brush 217 to move on the surface of the filter screen 214, thereby cleaning the impurities on the surface of the filter screen 214 into the impurity collection box 206 for collection. This not only realizes the automatic cleaning of impurities, but also improves the filtration effect of filter screen 214.

[0023] Secondly, the vertical carrier grid plate 112 and the arc-shaped carrier grid plate 113 facilitate the fixation of microbial carriers. The vertical carrier grid plate 112 is evenly arranged around the aeration rotating roller 109, while the arc-shaped carrier grid plates 113 are staggered on both sides of the vertical carrier grid plate 112, thereby increasing the number of microbial carriers fixed and facilitating the thorough purification of wastewater. When the aeration device 106 is started, gas is introduced into the interior of the aeration rotating roller 109 through the aeration connecting pipe 107. Simultaneously, the rotating motor 108 is started to drive the aeration rotating roller 109 to rotate, enabling… To achieve a full reaction between the microbial carrier and the wastewater, thereby improving the wastewater purification effect, nitrogen and carbon dioxide gases can be introduced for anaerobic microorganisms. When nitrogen is introduced into the solution, according to Henry's Law, the partial pressure of oxygen at the solution surface decreases, causing dissolved oxygen to escape. After carbon dioxide mixes with oxygen, the oxygen is carried out of the device through physical means such as gas flow, thereby reducing the oxygen concentration and providing an anaerobic environment for anaerobic microorganisms, thus improving their activity. For aerobic microorganisms, introducing oxygen can enhance their activity and improve the efficiency of wastewater purification.

[0024] Finally, by utilizing the threaded connection between the mounting bolts 111 and the vertical carrier grid plate 112 and the mounting block 110, the vertical carrier grid plate 112 and the arc-shaped carrier grid plate 113 can be removed from the inside of the carrier reaction chamber 101 for replacement. When gas is introduced, the high internal pressure of the carrier reaction chamber 101 causes the airflow to push the valve piston 124 inside the one-way valve 120. When the valve piston 124 separates from the bottom of the one-way valve 120, the wastewater at the top enters the carrier reaction chamber 101 through the one-way valve 120. When the carrier reaction tank 101 is filled with sewage, the gas supply is stopped and the one-way valve 120 is closed to allow a fixed amount of sewage to be introduced into the carrier reaction tank 101, thereby achieving quantitative sewage purification and avoiding insufficient sewage purification due to excessive sewage. By opening the drain valve 119, the purified sewage is discharged through the drain pipe 118. When it is necessary to clean the sludge sediment inside the drain support 114, the drain motor 115 is started to drive the drain rotating rod 116 and the drain auger 117 to rotate. Utilizing the structural characteristics of the drain auger 117, the sludge can be discharged.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A microbial carrier for wastewater treatment, comprising a carrier reaction mechanism (1) and a one-way valve (120) installed on top of the carrier reaction mechanism (1). The top of the carrier reaction mechanism (1) is provided with a sewage filtration mechanism (2), and a protective bracket (207) is provided on the outside of the sewage filtration mechanism (2). Its features are, Also includes: The carrier reaction mechanism (1) includes a carrier reaction box (101), a sedimentation tank (102) is provided at the bottom of the carrier reaction box (101), and a plurality of mounting holes (103) are provided at the top of the carrier reaction box (101). Among them, a sealing threaded block (104) is threadedly connected to one side of the carrier reaction box (101), and an installation plate (105) is fixedly installed on the outside of the sealing threaded block (104). An aeration device (106) is fixedly installed at the center of the outer side of the mounting plate (105), and an aeration connection pipe (107) is fixedly connected to the output end of the aeration device (106).

2. The microbial carrier for wastewater treatment according to claim 1, characterized in that: A rotating motor (108) is fixedly installed on the side of the carrier reaction tank (101) away from the aeration device (106). An aeration rotating roller (109) is fixedly connected to the output end of the rotating motor (108). The aeration rotating roller (109) is rotatably connected to the aeration connecting pipe (107). Several mounting blocks (110) are fixedly installed at both ends of the aeration rotating roller (109). The mounting blocks (110) are internally threaded with mounting bolts (111).

3. A microbial carrier for wastewater treatment according to claim 2, characterized in that: The mounting block (110) is internally fitted with a vertical carrier grid plate (112), which is connected to the mounting bolt (111). Both sides of the vertical carrier grid plate (112) are fixedly installed with arc-shaped carrier grid plates (113), which are arranged in an alternating manner. The carrier reaction tank (101) is fixedly installed with a sewage discharge bracket (114) near the bottom of the sedimentation tank (102).

4. A microbial carrier for wastewater treatment according to claim 3, characterized in that: A sewage discharge motor (115) is fixedly installed at one end of the sewage discharge bracket (114). A sewage discharge rotating rod (116) is fixedly connected to the output end of the sewage discharge motor (115). A sewage discharge auger (117) is fixedly installed on the outside of the sewage discharge rotating rod (116). A sewage discharge pipe (118) is fixedly installed on one side of the bottom of the sewage discharge bracket (114). A sewage discharge valve (119) is provided inside the sewage discharge pipe (118).

5. A microbial carrier for wastewater treatment according to claim 4, characterized in that: The one-way valve (120) is fixedly installed inside the mounting hole (103). A valve bracket (121) is fixedly installed on the inner top of the one-way valve (120). A valve telescopic rod (122) is fixedly installed on the bottom of the valve bracket (121). A valve spring (123) is fixedly installed on the outer side of the valve bracket (121) near the valve telescopic rod (122). A valve piston (124) is fixedly installed at the bottom of the valve telescopic rod (122) and the valve spring (123).

6. A microbial carrier for wastewater treatment according to claim 1, characterized in that: The wastewater filtration mechanism (2) includes a wastewater filtration box (201). Fixed brackets (202) are fixedly installed on both sides of the bottom of the wastewater filtration box (201). Support legs (203) are symmetrically installed on the bottom of the two fixed brackets (202). A connecting groove (204) is fixedly installed on the bottom of the wastewater filtration box (201). The connecting groove (204) is fixedly installed on the top of the carrier reaction box (101).

7. A microbial carrier for wastewater treatment according to claim 6, characterized in that: The top of the wastewater filter box (201) is fixedly installed with a feed hopper (205). The top of the wastewater filter box (201) near the fixed bracket (202) is fixedly installed with an impurity collection box (206). The protective bracket (207) is fixedly installed on the outside of the wastewater filter box (201). One end of the protective bracket (207) is fixedly installed with a filter motor (208). The output end of the filter motor (208) is fixedly connected with a filter rotating rod (209).

8. A microbial carrier for wastewater treatment according to claim 7, characterized in that: A bevel gear transmission assembly (210) is symmetrically installed on the outer side of the filter rotating rod (209). A rotating connecting shaft (211) is fixedly installed on one side of each of the two bevel gear transmission assemblies (210). A filter rotating roller (212) is fixedly installed on the side of each of the two rotating connecting shafts (211) away from the bevel gear transmission assembly (210). A screen mounting groove (213) is opened around the inside of the filter rotating roller (212).

9. A microbial carrier for wastewater treatment according to claim 8, characterized in that: The filter rotating roller (212) has a filter screen (214) fixedly installed inside the screen mounting groove (213). The filter rotating roller (212) has cleaning grooves (215) symmetrically opened on the outside. Gravity sliders (216) are slidably connected inside the two cleaning grooves (215). Cleaning brushes (217) are fixedly installed on the outside of the two gravity sliders (216). The cleaning brushes (217) are in contact with the surface of the filter screen (214).

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