Self-adjusting municipal engineering wastewater treatment device

Abstract

This invention relates to the field of wastewater treatment technology, specifically a self-regulating municipal engineering wastewater treatment device, comprising a cultivation mechanism and a screening mechanism. The cultivation mechanism includes a box body, a box cover, a lighting lamp, a transparent plate, and an aeration section. Support legs are provided at the bottom of the box body; a box cover is provided at the top of the box body; a groove is formed at the bottom of the box cover; the lighting lamp is located within the groove; the transparent plate is located at the opening of the groove; the aeration section is located at the bottom inner side of the box body. The screening mechanism includes a screening box, a traction unit, a scraper, and an inclined plate; the screening box is located within the box body; the inclined plate is connected to the screening box and the inner wall of the box body; screening mesh is provided on all four side walls of the screening box; openings are formed on the four side walls of the box body near the bottom of the inclined plate; the traction unit is located on the box cover and connected to the scraper; the scraper slides inside the screening box. This invention significantly improves the hydraulic shear resistance of aerobic sludge particles while simultaneously achieving automatic screening by forming symbiotic bacteria-algae particles.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a self-regulating municipal engineering wastewater treatment device. Background Technology

[0002] The activated sludge process is the most widely used and mature core biological treatment technology for treating municipal engineering wastewater. Its basic principle is that, under artificial oxygenation conditions, the activated sludge (a flocculent composed of a large number of aerobic microorganisms and their adsorbed organic matter) degrades and removes dissolved and colloidal organic matter in the wastewater through adsorption and biological metabolism.

[0003] Chinese Patent No. CN119612754B discloses a wastewater treatment device for municipal engineering. When one of the nozzles is damaged, the transfer pipe adjacent to that nozzle is disconnected from the adjacent moving pipe, thereby increasing the water pressure and flow rate at the remaining nozzles, expanding the disturbance range of the water flow sprayed by the remaining nozzles, maintaining the fluidity of the mixed liquid in the reaction tank, and ensuring the normal growth and reproduction of aerobic microorganisms in the activated sludge.

[0004] However, the aforementioned existing technologies have the following drawbacks: Aerobic sludge granules are highly dependent on aeration volume when treating wastewater. When the aeration volume is too high, the strong shear force directly crushes mature aerobic sludge granules, turning them back into flocculent sludge, causing a precipitous drop in system performance. Airflow requires precise and constant control, which is difficult for ordinary, extensive aeration systems to maintain over a long period. Furthermore, after a period of use, aerobic sludge granules exhibit a "growth" phenomenon (i.e., the granules become larger). Excessively large granules experience impaired mass transfer, and the core area ages and hollows due to lack of oxygen, ultimately leading to structural disintegration. Therefore, it is necessary to periodically screen out excessively large aerobic sludge granules, a function that the aforementioned existing technologies lack. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a self-regulating municipal engineering wastewater treatment device.

[0006] The technical solution of the present invention: A self-regulating municipal engineering wastewater treatment device, comprising:

[0007] The cultivation device includes a box, a lid, a light, a transparent plate, and an aeration unit; the bottom of the box is equipped with support legs; the top of the box is equipped with a lid; the bottom of the lid has a groove; the light is located in the groove; the transparent plate is located at the opening of the groove; the aeration unit is located at the bottom of the inner side of the box; the box contains water, aerobic sludge particles, and algae.

[0008] The screening mechanism includes a screening box, a traction unit, a scraper, and an inclined plate; the screening box is located inside the box; the inclined plate is connected to the screening box and the inner wall of the box; screening screens are provided on all four sides of the screening box; openings are provided on the four sides of the box near the bottom of the inclined plate; the traction unit is located on the box cover and is connected to the scraper; the scraper is slidably located inside the screening box.

[0009] The repair mechanism includes a U-shaped box, a feeding section, telescopic components, and a pressure plate; the U-shaped box is connected to the outer side of the box body and its opening is close to the opening; multiple sets of telescopic components are provided and connected to the U-shaped box via a through plate a; the telescopic components are connected to the pressure plate; multiple sets of feeding sections are provided and are circumferentially distributed on the pressure plate.

[0010] Preferably, a water inlet pipe is connected to the side wall of the tank near the top; and a water outlet pipe is connected to the side wall of the tank near the bottom.

[0011] Preferably, the scraper is in the shape of a "U" and its four sides are all provided with inclined surfaces, which face the screening screen.

[0012] Preferably, the box cover has holes; the traction unit includes a motor a, a vertical plate, a take-up roller and a traction rope; two sets of vertical plates are provided and connected to the box cover; the take-up roller is rotatably mounted on the vertical plate; the motor a is mounted on the vertical plate and is connected to the take-up roller for transmission; the traction rope is wound around the take-up roller, and one end of the traction rope passes through the holes and is connected to the scraper plate.

[0013] Preferably, the aeration section includes a blower, a hollow plate, aeration valve a, aeration valve b, aeration valve c, and a piping section; the hollow plate is located at the bottom of the inner side of the box; multiple sets of aeration valve a are arranged circumferentially on the hollow plate, and aeration valve a is inclined in a clockwise direction; multiple sets of aeration valve b are arranged and inclined towards the screening box; multiple sets of aeration valve c are arranged and connected to the bottom of the U-shaped box; the blower is located below the box and is connected to the hollow plate and aeration valve c through the piping section.

[0014] Preferably, the piping section includes pipe a, pipe b, and pipe c; the air outlet of the blower is connected to pipe b through pipe a; the hollow plate is connected to pipe c through pipe b; and pipe c is connected to aeration valve c.

[0015] Preferably, the pressure plate has a feeding port; the feeding part includes a feeding box, a metering roller and a motor b; the feeding box is connected to the pressure plate and communicates with the feeding port, and contains a mixture of activated carbon particles and organic particles; the metering roller is rotatably located in the feeding box, and the surface of the metering roller has a metering groove; the motor b is located on the feeding box and is connected to the metering roller for transmission.

[0016] Preferably, the box is equipped with a guide block; the guide block is in contact with the surface of the metering roller.

[0017] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects:

[0018] By incorporating a cultivation mechanism, aerobic sludge granules and algae are co-cultivated to form symbiotic bacteria-algae granules. The algal filaments penetrate the pores, growing and intertwining laterally, significantly enhancing the aerobic sludge granules' resistance to hydraulic shear. The algae's photosynthesis consumes the respiration produced by the bacteria. Bacteria degrade pollutants, releasing carbon sources and nutrients to supply algae. Algae can produce oxygen through photosynthesis, thereby reducing aeration and energy consumption. During their growth, microalgae absorb nutrients such as nitrogen and phosphorus from wastewater, complementing the biodegradation process of bacteria and jointly improving the removal efficiency of nitrogen and phosphorus.

[0019] By incorporating a screening mechanism, the airflow ejected by aeration valve A causes the wastewater to rotate and flow, generating centrifugal force that throws the algae-bacterial symbiotic particles onto the screening screen. After each wastewater treatment, the algae-bacterial symbiotic particles can be automatically screened, eliminating the need for regular screening by staff. This ensures timely replacement of the algae-bacterial symbiotic particles while improving screening efficiency.

[0020] By incorporating a remediation mechanism, excessively large algal-microbe symbiotic particles are broken down. The resulting fine sludge fragments and microbial aggregates remain active, allowing them to re-aggregate, adhere, and grow around activated carbon particles, forming new, more stable particles. This achieves the reorganization and remediation function of excessively large algal-microbe symbiotic particles. Attached Figure Description

[0021] Figure 1 This is a perspective view of one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the assembly structure of the repair mechanism in one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the box in a cross-sectional state according to one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the box cover and the traction unit in one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the cross-sectional state of the box and the structure of the screening box in one embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection structure between the hollow plate and aeration valves a and b in one embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the connection structure between the fan and the hollow plate through the pipeline section in one embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the feed box and the metering roller in a cross-sectional state in one embodiment of the present invention.

[0029] Reference numerals: 1. Box body; 101. Inlet pipe; 102. Outlet pipe; 103. Opening; 2. Box cover; 3. Rewinding roller; 4. Traction rope; 5. Motor a; 6. U-shaped box; 7. Pressure plate; 8. Plate a; 9. Telescopic component; 10. Feed box; 1001. Guide block; 11. Motor b; 12. Aeration valve c; 13. Pipe c; 14. Inclined plate; 15. Screening box; 16. Screening screen; 17. Hollow plate; 18. Aeration valve a; 19. Lighting lamp; 20. Transparent plate; 21. Scraper; 22. Metering roller; 2201. Metering trough; 23. Aeration valve b; 24. Blower; 25. Pipe a; 26. Pipe b. Detailed Implementation

[0030] Example 1, as Figures 1-7 As shown, the present invention proposes a self-regulating municipal engineering wastewater treatment device, which includes a cultivation mechanism, a screening mechanism, and a repair mechanism.

[0031] The cultivation unit includes a box body 1, a box cover 2, a lighting lamp 19, a transparent plate 20, and an aeration section; the bottom of the box body 1 is equipped with support legs; a water inlet pipe 101 is connected to the side wall of the box body 1 near the top (the water inlet pipe 101 is connected to a wastewater conveying device, which intermittently conveys wastewater to be treated into the box body 1 through the water inlet pipe 101); a water outlet pipe 102 is connected to the side wall of the box body 1 near the bottom (the water outlet pipe 102 is equipped with a control valve; the water outlet pipe 102 is connected to the next wastewater treatment process, used to transfer the wastewater into the box body). The treated wastewater in tank 1 is transported to the next treatment process); the top of tank 1 is equipped with a tank cover 2 (the tank cover 2 is detachably connected to the top of tank 1); the bottom of the tank cover 2 has a groove; a lighting lamp 19 is installed in the groove (to provide light for algae and promote their photosynthesis); a transparent plate 20 is installed at the opening of the groove; the aeration unit is located at the bottom of the inner side of tank 1; tank 1 contains water, aerobic sludge particles and algae (algae include Chlorella, Scenedesmus, filamentous blue-green algae, etc.); the aeration unit includes a blower 24 and a hollow... Hollow plate 17, aeration valve a18, aeration valve b23, aeration valve c12, and piping; hollow plate 17 is located at the bottom inner side of the tank 1; multiple sets of aeration valves a18 are arranged circumferentially on the hollow plate 17, with aeration valves a18 tilted clockwise (ensuring that the ejected gas is ejected clockwise and upward, generating a tangential thrust that drives the surrounding water to rotate and flow, solving the problem of uneven aeration, and effectively preventing aerobic sludge particles from settling in the treatment tank); aeration valve b23 Multiple sets of aeration valves c12 are provided and inclined towards the screening box 15; multiple sets of aeration valves c12 are provided and connected to the bottom of the U-shaped box 6; the blower 24 is located below the box 1 and is connected to the hollow plate 17 and the aeration valves c12 through the pipeline section (the blower 24 includes, but is not limited to, a Roots blower 24); the pipeline section includes pipe a25, pipe b26 and pipe c13; the air outlet of the blower 24 is connected to pipe b26 through pipe a25; the hollow plate 17 is connected to pipe c13 through pipe b26; pipe c13 is connected to the aeration valve c12;

[0032] It should be noted that when aerobic sludge granules and algae are placed in container 1, and lighting lamp 19 is used to provide a light source for the algae, with the light intensity controlled at 150–400 μmol / (m²·s), using a 12-hour light / 12-hour dark alternation mode, and continuous weak aeration throughout the day (DO maintained at 1.5–2.5 mg / L), the water flow in the illuminated area is slow. This can induce algae naturally present in the wastewater or inoculum to grow on the surface of the aerobic sludge granules, forming stable algal-bacterial symbiotic granules. The algal filaments will penetrate into the pores and grow, interweaving laterally, like a steel mesh wrapping and pulling the granules, significantly improving the aerobic sludge granules' resistance to hydraulic shear. The algal photosynthesis consumes the respiration produced by the bacteria. Bacteria degrade pollutants, releasing carbon sources and providing nutrients to algae. This two-way symbiosis leads to a significant increase in the content of dense TB-EPS (protein and polysaccharide) secreted by sludge bacteria. Algae photosynthesis can produce oxygen, thereby reducing aeration and energy consumption (approximately 10%-30% of traditional processes). During their growth, microalgae absorb nutrients such as nitrogen and phosphorus from wastewater, complementing the biodegradation process of bacteria and jointly improving the removal efficiency of nitrogen and phosphorus.

[0033] The screening mechanism includes a screening box 15, a traction unit, a scraper 21, and an inclined plate 14. The screening box 15 is located inside the box body 1. The inclined plate 14 is connected to the screening box 15 and the inner wall of the box body 1. Screening screens 16 are provided on all four sides of the screening box 15 (the mesh of the screening screen 16 only allows aerobic sludge particles of the qualified particle size to pass through). Openings 103 are provided on the four sides of the box body 1 near the bottom of the inclined plate 14. The traction unit is located on the box cover 2 and connected to the scraper 21. The scraper 21 is slidably located inside the screening box 15. The scraper 21 is U-shaped and has inclined surfaces on all four sides, with the inclined surfaces facing the screening. The screen 16 is set up (when the scraper 21 carries large aerobic sludge particles to the top of the screening box 15, the aerobic sludge particles will roll along the inclined plane to the inclined plate 14, and then move along the inclined plate 14 through the opening 103 into the box 6); the box cover 2 has holes; the traction part includes a motor a5, a vertical plate, a winding roller 3 and a traction rope 4; two sets of vertical plates are provided and connected to the box cover 2; the winding roller 3 is rotatably mounted on the vertical plate; the motor a5 is mounted on the vertical plate and is connected to the winding roller 3 for transmission; the traction rope 4 is wound around the winding roller 3, and one end of the traction rope 4 passes through the hole and is connected to the scraper 21;

[0034] The repair mechanism includes a U-shaped box 6, a feeding section, a telescopic component 9, and a pressure plate 7; the U-shaped box 6 is connected to the outer side of the box body 1 and its opening is close to the opening 103 (the U-shaped box 6 is made of transparent material so that external light sources can be used as light sources for algae); multiple sets of telescopic components 9 are provided and connected to the U-shaped box 6 through a plate a8 (the telescopic component 9 includes, but is not limited to, devices such as cylinders); the telescopic component 9 is connected to the pressure plate 7; multiple sets of feeding sections are provided and are circumferentially distributed on the pressure plate 7.

[0035] In this embodiment, aerobic sludge particles and algae are placed into the screening box 15 in the housing 1. By applying light and oxygen, the aerobic sludge particles and algae form stable symbiotic particles. Then, the wastewater to be treated is transported into the housing 1 through the inlet pipe 101. Next, the blower 24 and aeration valve a18 are turned on. The blower 24 transports outside air through pipe a25 to pipe b26. Then, it is transported through pipe b26 to the hollow plate 17, and finally sprayed out through the aeration valve a18. The sprayed gas is sprayed out at an angle upward in a clockwise direction, and the sprayed gas will generate a tangential push. The force drives the surrounding water to rotate and flow, ensuring thorough mixing of the algae-bacterial symbiotic particles with the wastewater, solving the problem of uneven aeration, and effectively preventing the algae-bacterial symbiotic particles from settling in the treatment tank (at this point, since a large amount of aeration is not required, controlling the power of the blower at 24% is sufficient to create a small-amplitude rotational flow in the wastewater; the centrifugal force generated at this point is insufficient to allow the algae-bacterial symbiotic particles to pass through the 16-mesh screen); the algal filaments penetrate into the pores and grow, interweaving laterally, significantly improving the aerobic sludge particles' resistance to hydraulic shearing; the algae's photosynthesis consumes the respiration produced by the bacteria. Bacteria degrade pollutants, releasing carbon sources and providing nutrients to algae. This two-way symbiosis leads to a significant increase in the content of dense TB-EPS (protein and polysaccharide) secreted by sludge bacteria. Algae photosynthesis can produce oxygen, thereby reducing aeration and energy consumption (approximately 10%-30% of traditional processes). During their growth, microalgae absorb nutrients such as nitrogen and phosphorus from wastewater, complementing the biodegradation process of bacteria and jointly improving the removal efficiency of nitrogen and phosphorus.

[0036] After wastewater treatment, the power of the blower 24 is increased. The rotating wastewater flow causes the algae-bacterial symbiotic particles to rotate. The centrifugal force generated by this rotation throws the particles towards the screening screen 16. Particles of the correct size pass through the screen's mesh, while larger particles are blocked and adhere to the screen 16 under centrifugal force. Then, the motor a5 is turned on, driving the winding roller 3 to rotate. The winding roller 3 winds the traction rope 4, which pulls the hanging plate upwards, thus carrying the algae-bacterial symbiotic particles adhered to the screening screen 16 upwards. When the particles reach the top of the screening box 15, they roll down the inclined surface of the scraper 21 onto the inclined plate 14. The particles then roll off the inclined plate 14 and pass through the opening 103 into the U-shaped box 6, thus achieving automatic screening of the algae-bacterial symbiotic particles. This eliminates the need for regular screening by staff, ensuring timely replacement of the algae-bacterial symbiotic particles while improving screening efficiency. After the algae-bacterial symbiotic particles settle in the wastewater, the control valve on the outlet pipe 102 is opened to discharge the wastewater from the box 1. After the wastewater is discharged, the next batch of wastewater to be treated is transported to the box 1. Then, the aeration valve a18 is closed and the aeration valve b23 is opened. The airflow from the aeration valve b23, directed at the screening screen 16, blows the qualified algae-bacterial symbiotic particles from the outside of the screening box 15 into the inside of the screening box 15. The above wastewater treatment steps are then repeated.

[0037] Example 2, as Figure 8 As shown, the self-regulating municipal engineering wastewater treatment device proposed in this invention, compared with Embodiment 1, further includes a feeding section structure. A feeding port is provided on the pressure plate 7. The feeding section includes a feeding box 10, a metering roller 22, and a motor b11. The feeding box 10 is connected to the pressure plate 7 and communicates with the feeding port. The feeding box 10 contains a mixture of activated carbon particles and organic particles (organic particles include, but are not limited to, sucrose, etc.); the amount of activated carbon particles added is 4.64 g / L; the amount of organic particles added is... (340 mg / L); the metering roller 22 is rotatably disposed inside the feeding box 10, and the surface of the metering roller 22 is provided with a metering groove 2201; the motor b11 is disposed on the feeding box 10 and is connected to the metering roller 22 for transmission; the box 1 is provided with a guide block 1001; the guide block 1001 is in contact with the surface of the metering roller 22 (the guide block 1001 can ensure the rotational sealing between the metering roller 22 and the feeding box 10; at the same time, it plays a gathering and guiding role for the mixture, so that the mixture can gather at the metering groove 2201).

[0038] In this embodiment, the telescopic component 9 drives the pressure plate 7 to move downwards. The pressure plate 7 can slightly crush the excessively large algae-bacterial symbiotic particles in the U-shaped box 6, and then the pressure plate 7 moves upwards to reset. Then, the motor b11 drives the metering trough 2201 to rotate towards the inside of the feeding box 10. The mixture of activated carbon particles and organic particles will enter the metering trough 2201. When the motor b11 drives the metering roller 22 to rotate, the metering trough 2201 will face the feeding port, and the mixture in the metering trough 2201 will pass through the feeding port into the U-shaped box 6. At the same time, aeration is turned on. Valve C12 aerates the tubular box 6, providing oxygen to the aerobic bacteria. Because the large algae-bacterial symbiotic particles break down into many small sludge fragments and microbial aggregates, these fragments retain biological activity. Microorganisms and sludge fragments will re-aggregate, adhere, and grow around the activated carbon particles, forming new, more structurally stable particles. The activated carbon itself is porous and hard, significantly improving the mechanical strength and structural stability of the newly formed particles, much like the reinforcing steel in concrete. The newly formed algae-bacterial symbiotic particles will be reintroduced into the tubular box 1 for reuse.

[0039] It should be noted that in this application, each motor and other equipment is controlled to work in an orderly manner by an external controller (including but not limited to a PLC controller).

[0040] In summary, aerobic sludge particles and algae are placed into the screening box 15 in the tank 1. By applying light and oxygen, the aerobic sludge particles and algae form stable symbiotic particles. Then, the wastewater to be treated is transported into the tank 1 through the inlet pipe 101. Next, the blower 24 and aeration valve a18 are turned on. The blower 24 transports outside air through pipe a25 to pipe b26. Then, it is transported from pipe b26 to the hollow plate 17, and finally sprayed out through the aeration valve a18. The sprayed gas is sprayed out at an angle upward clockwise, and the sprayed gas will generate a tangential thrust, thereby driving... The surrounding water swirls and flows, ensuring thorough mixing of the algae-bacterial symbiotic particles with the wastewater, resolving uneven aeration and effectively preventing the particles from settling in the treatment tank (at this point, because the algae produce oxygen, a large amount of aeration is not needed; by controlling the blower's power to create a small-amplitude swirling flow in the wastewater, the resulting centrifugal force is insufficient to force the algae-bacterial symbiotic particles through the 16-mesh screen). The algal filaments penetrate the pores, growing and interweaving laterally, significantly enhancing the aerobic sludge particles' resistance to hydraulic shear. Algal photosynthesis consumes the oxygen produced by bacterial respiration. Bacteria degrade pollutants, releasing carbon sources and providing nutrients to algae. This two-way symbiosis leads to a significant increase in the content of dense TB-EPS (protein and polysaccharide) secreted by sludge bacteria. Algae photosynthesis can produce oxygen, thereby reducing aeration and energy consumption (approximately 10%-30% of traditional processes). During their growth, microalgae absorb nutrients such as nitrogen and phosphorus from wastewater, complementing the biodegradation process of bacteria and jointly improving the removal efficiency of nitrogen and phosphorus.

[0041] After wastewater treatment, by increasing the power of the blower 24, the rotating flow of wastewater causes the algae-bacterial symbiotic particles to rotate. The centrifugal force generated by the rotation causes the algae-bacterial symbiotic particles to be thrown towards the screening screen 16. Algae-bacterial symbiotic particles of the correct size will pass through the mesh of the screen; oversized algae-bacterial symbiotic particles will be blocked and adhere to the screening screen 16 under the action of centrifugal force. Then, the motor a5 is turned on; the motor a5 drives the winding roller 3 to rotate, and the winding roller 3 winds the traction rope 4; the traction rope 4 pulls the hanging plate upward, thereby causing the algae-bacterial symbiotic particles adhered to the screening screen 16 to move upward. When the algae-bacterial symbiotic particles are carried upward to the top of the screening box 15, the algae-bacterial symbiotic particles roll down the inclined surface of the scraper 21 onto the inclined plate 14 (which then causes the scraper 21 to roll down the inclined plate 14). 1. The particles are moved down and reset, then roll off the inclined plate 14 and fall through the opening 103 into the U-shaped box 6; this realizes the automatic screening function of the algae-bacterial symbiotic particles, eliminating the need for regular screening by staff, ensuring timely replacement of the algae-bacterial symbiotic particles while improving screening efficiency; after the algae-bacterial symbiotic particles settle in the wastewater, the control valve on the outlet pipe 102 is opened; the wastewater in the box 1 is discharged; after the wastewater is discharged, the next batch of wastewater to be treated is transported to the box 1; then, the aeration valve a18 is closed and the aeration valve b23 is opened; the qualified algae-bacterial symbiotic particles on the outside of the screening box 15 are blown into the inside of the screening box 15 by the airflow obliquely directed towards the screening screen 16 by the aeration valve b23; then the above wastewater treatment steps are repeated.

[0042] After excessively large algae-bacterial symbiotic particles enter the recycling bin, the telescopic component 9 drives the pressure plate 7 to move downwards, slightly crushing the excessively large algae-bacterial symbiotic particles; then the pressure plate 7 moves upwards to reset; subsequently, the motor b11 drives the metering trough 2201 to rotate towards the inside of the feeding box 10, and the mixture of activated carbon particles and organic particles enters the metering trough 2201. When the motor b11 drives the metering roller 22 to rotate, the metering trough 2201 faces the feeding port, and the mixture in the metering trough 2201 passes through the feeding port into the U-shaped box 6; at the same time, the aeration valve c is opened. 12; Aeration is introduced into the U-shaped box 6 to provide oxygen for aerobic bacteria; Since the large-particle algae symbiotic particles break down into many small sludge fragments and microbial aggregates, these fragments themselves still have biological activity; Microorganisms and sludge fragments will re-aggregate, adhere, and grow around the activated carbon particles, forming new, more structurally stable particles; Activated carbon itself is porous and hard, and can significantly improve the mechanical strength and structural stability of the new particles, just like the steel bars in concrete; The newly formed algae symbiotic particles will be put back into the box 1 for reuse.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A self-adjusting type municipal engineering wastewater treatment device, characterized by, Comprising: A culture mechanism, comprising a tank body (1), a tank cover (2), a lighting lamp (19), a transparent plate (20) and an aeration part; the bottom end of the tank body (1) is provided with support legs; the top end of the tank body (1) is provided with the tank cover (2); the bottom end of the tank cover (2) is provided with a groove; the lighting lamp (19) is arranged in the groove; the transparent plate (20) is arranged at the notch of the groove; the aeration part is arranged at the inner bottom end of the tank body (1); water, aerobic sludge particles and algae are stored in the tank body (1); A screening mechanism, comprising a screening box (15), a traction part, a scraping plate (21) and an inclined plate (14); the screening box (15) is arranged in the tank body (1); the inclined plate (14) is connected with the screening box (15) and the inner wall of the tank body (1); all side walls around the screening box (15) are provided with screening meshes (16); an opening (103) is provided on the side walls around the tank body (1) near the bottom end of the inclined plate (14); the traction part is arranged on the tank cover (2) and connected with the scraping plate (21); the scraping plate (21) is slidably arranged inside the screening box (15); A remediation mechanism, comprising a clip-shaped box (6), a blanking part, a telescopic component (9) and a pressing plate (7); the clip-shaped box (6) is connected to the outer side surface of the tank body (1) and the box opening thereof is close to the opening (103); the telescopic component (9) is provided with multiple groups and connected with the clip-shaped box (6) through a plate a (8); the telescopic component (9) is connected with the pressing plate (7); the blanking part is provided with multiple groups and circumferentially distributed on the pressing plate (7).

2. The self-regulating municipal engineering wastewater treatment device according to claim 1, characterized in that, A water inlet pipe (101) is connected to the side wall of the tank body (1) near the top end; a water outlet pipe (102) is connected to the side wall of the tank body (1) near the bottom end.

3. The self-regulating municipal engineering wastewater treatment device according to claim 1, characterized in that, The scraping plate (21) is in the shape of a clip, and the surrounding side walls thereof are all provided with inclined surfaces, and the inclined surfaces are arranged facing the screening mesh (16).

4. The self-regulating municipal engineering wastewater treatment device according to claim 1, characterized in that, A hole is opened on the tank cover (2); the traction part comprises a motor a (5), a vertical plate, a winding roller (3) and a traction rope (4); two groups of vertical plates are provided and connected to the tank cover (2); the winding roller (3) is rotatably arranged on the vertical plate; the motor a (5) is arranged on the vertical plate and in transmission connection with the winding roller (3); the traction rope (4) is wound on the winding roller (3), and one end of the traction rope (4) passes through the hole and is connected with the scraping plate (21).

5. The self-regulating municipal engineering wastewater treatment device according to claim 1, characterized in that, The aeration part comprises a fan (24), a hollow plate (17), an aeration valve a (18), an aeration valve b (23), an aeration valve c (12) and a pipeline part; the hollow plate (17) is arranged at the inner bottom end of the tank body (1); multiple groups of aeration valves a (18) are circumferentially distributed on the hollow plate (17), and the aeration valves a (18) are inclined in a clockwise direction; multiple groups of aeration valves b (23) are inclined towards the direction of the screening box (15); multiple groups of aeration valves c (12) are connected to the bottom end of the clip-shaped box (6); the fan (24) is arranged below the tank body (1) and connected with the hollow plate (17) and the aeration valve c (12) through the pipeline part.

6. A self-regulating municipal engineering wastewater treatment device according to claim 5, characterized in that, The pipeline part comprises a pipe a (25), a pipe b (26) and a pipe c (13); the air outlet end of the fan (24) is communicated with the pipe b (26) through the pipe a (25); the hollow plate (17) is communicated with the pipe c (13) through the pipe b (26); the pipe c (13) is communicated with the aeration valve c (12).

7. The self-regulating municipal engineering wastewater treatment device according to claim 1, characterized in that, The pressure plate (7) has a feeding port; the feeding part includes a feeding box (10), a metering roller (22) and a motor b (11); the feeding box (10) is connected to the pressure plate (7) and communicates with the feeding port, and the feeding box (10) contains a mixture of activated carbon particles and organic particles; the metering roller (22) is rotatably located in the feeding box (10), and the surface of the metering roller (22) has a metering groove (2201); the motor b (11) is located on the feeding box (10) and is connected to the metering roller (22) for transmission.

8. A self-regulating municipal engineering wastewater treatment device according to claim 7, characterized in that, The box (1) is equipped with a guide block (1001); the guide block (1001) is in contact with the surface of the metering roller (22).

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