Fermentation equipment for cultivating wastewater to cultivate photosynthetic bacteria

Abstract

This utility model discloses a fermentation device for cultivating photosynthetic bacteria in aquaculture wastewater, relating to the field of environmental protection technology. It includes a tank body, an upper tank cover, and a lower tank cover. The upper tank cover is installed on top of the tank body. An inlet is located in the middle of the upper tank cover, and a connecting hole is formed inside the upper tank cover on the outer side of the inlet. Multiple sets of transparent rings are installed at the bottom of the upper tank cover, and the bottom ends of these transparent rings are all installed at the top of the lower tank cover. A light source module is installed inside each transparent ring. A cleaning component is installed on the upper tank cover. Grilles are fixed to the bottom of both the transparent rings and the bottom of the tank body. A storage cavity is formed inside the lower tank cover. In this fermentation device for cultivating photosynthetic bacteria in aquaculture wastewater, the rotation of the scraper can clean the outer surface of the transparent rings, preventing impurities from remaining on the transparent rings and affecting light penetration. The rotation of the scraper can move all impurities to the discharge port, facilitating the removal of all impurities.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection technology, specifically to a fermentation device for cultivating photosynthetic bacteria in aquaculture wastewater. Background Technology

[0002] Photosynthetic bacteria can use organic matter as a hydrogen donor for photosynthesis and can be applied to the purification of fermentation and aquaculture wastewater. This solves the problems of high energy consumption, large amount of residual sludge, and inability to be directly converted into high value-added products in traditional aquaculture wastewater treatment processes (such as activated sludge process).

[0003] For example, Chinese invention patent CN120117750B discloses a device for fermenting aquaculture wastewater using photosynthetic bacteria. The device includes a tank, an upper cover, and a lower cover. Multiple partition plates are disposed between the upper and lower covers, dividing the tank into multiple cavities. The partition plates have connecting holes that connect adjacent cavities, and these connecting holes are staggered vertically. The tank has an outlet, the height of which is higher than the height of the connecting holes. The upper cover has multiple plugs extending into the cavities. These plugs include closed plugs whose bottom surface is lower than the outlet height and open plugs whose bottom surface is higher than the outlet height. The open plugs have a communication mechanism connecting the corresponding cavity to the outside. A light source module is installed inside the tank, and the partition plates are made of transparent material. This increases the pathway for aquaculture wastewater within the tank, while some cavities are completely filled, creating an anoxic environment, while others are connected to the outside, creating an aerobic environment, giving the photosynthetic bacteria a competitive advantage.

[0004] Based on existing solutions and actual production and processing applications, the existing fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater is inconvenient for cleaning the outer surface of the transparent ring and for thoroughly removing impurities from the storage chamber. Therefore, we propose a fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a fermentation device for cultivating photosynthetic bacteria in aquaculture wastewater, in order to solve the problems mentioned in the background art of existing fermentation devices for cultivating photosynthetic bacteria in aquaculture wastewater, which make it inconvenient to clean the outer side of the transparent ring and to thoroughly remove impurities from the storage chamber.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fermentation device for cultivating photosynthetic bacteria in aquaculture wastewater, comprising a tank body, an upper tank cover, and a lower tank cover:

[0007] An upper tank cover is installed on the top of the tank body. A water inlet is provided in the middle of the upper tank cover. A connecting hole is provided on the outside of the water inlet and inside the upper tank cover. A water outlet is provided at the right end of the tank body.

[0008] The bottom of the upper can lid is equipped with multiple sets of transparent rings, and the bottom of the multiple sets of transparent rings is installed on the top of the lower can lid. A light source module is installed inside the transparent ring. A cleaning component is installed on the upper can lid. A grid is fixed at the bottom of the transparent ring and the bottom of the can body. A storage cavity is opened inside the lower can lid. Flanges are fixed on the outer sides of the lower can lid, the can body and the upper can lid. A processing cover is provided at the bottom of the storage cavity.

[0009] Preferably, the connecting hole is formed at an equal angle inside the upper can lid.

[0010] Preferably, the flanges on both the upper and lower tank covers are fixedly connected to the flanges on the tank body by screws.

[0011] Preferably, the cleaning assembly includes a motor, a toothed disc, a toothed ring, and a scraper. The motor is fixed to the upper surface of the upper can lid, the output end of the motor is fixed to the toothed disc, the outer end of the toothed disc is meshed with the toothed ring, the toothed ring is rotatably mounted on the bottom end of the upper can lid, and the lower surface of the toothed ring is fixed to the scraper.

[0012] Preferably, the outer side of the scraper is in contact with the outer side of the transparent ring.

[0013] Preferably, the bottom longitudinal section of the scraper has an "L" shaped structure, and the spacing between the grids is greater than the thickness of the scraper.

[0014] Preferably, the connection between the processing cover and the lower can cover is a threaded connection.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater can clean the outer side of the transparent ring by rotating the scraper, so as to prevent impurities from remaining on the transparent ring and affecting the light. The rotation of the scraper can move all the impurities to the discharge port, so as to facilitate the removal of all the impurities.

[0016] 1. A cleaning assembly is installed on the upper can lid. The cleaning assembly includes a motor, a toothed disc, a toothed ring, and a scraper. The motor drives the scraper to rotate through the toothed disc and toothed ring. The rotation of the scraper can clean the outer side of the transparent ring, preventing impurities from remaining on the transparent ring and affecting light transmission.

[0017] 2. The bottom longitudinal section of the scraper is an "L" shaped structure. The scraper can clean the inside of the storage chamber. After the processing cover is removed, all the impurities can be moved to the discharge port, making it easy to remove all the impurities.

[0018] 3. The flanges on both the upper and lower tank lids are fixedly connected to the flanges on the tank body with screws, which facilitates the assembly and installation of the fermentation equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first axial section structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the axonal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the second axial side section structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the third axial side section structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the scraper and the toothed ring of this utility model.

[0024] In the diagram: 1. Tank body; 2. Upper tank cover; 3. Inlet; 4. Connecting hole; 5. Outlet; 6. Transparent ring; 7. Lower tank cover; 8. Motor; 9. Gear disc; 10. Gear ring; 11. Scraper; 12. Grille; 13. Processing cover; 14. Flange; 15. Storage chamber. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 The existing fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater is inconvenient to clean the outer surface of the transparent ring 6 and to completely remove impurities from the storage chamber 15. In order to solve this technical problem, this embodiment discloses the following technical content.

[0027] It includes a tank body 1, an upper tank cover 2, a water inlet 3, a connecting hole 4, a water outlet 5, a transparent ring 6, a lower tank cover 7, a motor 8, a toothed disc 9, a toothed ring 10, a scraper 11, a grid 12, a processing cover 13, a flange 14, and a storage chamber 15;

[0028] A top cover 2 is installed on the top of the tank body 1. A water inlet 3 is provided in the middle of the top cover 2. A connecting hole 4 is provided on the outside of the water inlet 3 and is opened inside the top cover 2. The connecting hole 4 is opened at an equal angle inside the top cover 2. A water outlet 5 is provided at the right end of the tank body 1.

[0029] Multiple transparent rings 6 are installed at the bottom of the upper can lid 2, and the bottom of the multiple transparent rings 6 are all installed at the top of the lower can lid 7. A light source module is installed inside the transparent ring 6 to provide sufficient light for the photosynthetic bacteria. A cleaning component is installed on the upper can lid 2. A grid 12 is fixed at the bottom of the transparent ring 6 and the bottom of the can body 1. A storage cavity 15 is opened inside the lower can lid 7. A treatment cover 13 is provided at the bottom of the storage cavity 15. The treatment cover 13 is connected to the lower can lid 7 by a threaded connection.

[0030] Flanges 14 are fixed to the outer sides of the lower can cover 7, the tank body 1 and the upper can cover 2. The flanges 14 on the upper can cover 2 and the lower can cover 7 are fixedly connected to the flanges 14 on the tank body 1 by screws. When assembling, the upper can cover 2 is placed on the tank body 1 and the lower can cover 7 is placed at the bottom of the tank body 1 and fixedly connected by screws.

[0031] The fermentation equipment used to cultivate photosynthetic bacteria in this aquaculture wastewater utilizes the characteristic that photosynthetic bacteria are facultative aerobic bacteria, suitable for growth and reproduction under light-micro-aerobic conditions. Multiple transparent rings 6 are positioned between the upper tank cover 2 and the lower tank cover 7, dividing the tank 1 into multiple cavities. The transparent rings 6 have connecting holes that connect adjacent cavities. Figure 1 As shown, the connecting holes on two adjacent transparent rings 6 are staggered vertically, which increases the flow path of aquaculture wastewater within the tank 1.

[0032] The height of outlet 5 is higher than the height of the connection hole, such as Figure 1 and Figure 3 As shown, the upper end cover 2 is provided with multiple plugs extending into the cavity. The multiple plugs are divided into closed plugs and open plugs. The open plugs are provided with a connecting hole 4.

[0033] After solid-liquid separation, the aquaculture wastewater is adjusted to pH 6.5–7.5 and COD controlled at 2000–5000 mg / L. It flows from inlet 3 to a central chamber, where photosynthetic bacteria are added. The wastewater passes through multiple chambers and is finally discharged from outlet 5. When the inflow rate does not exceed the outflow rate, the highest liquid level in tank 1 is determined by outlet 5. The height of the bottom surface of the plug and the height of outlet 5 together determine the liquid level in each chamber. Because the bottom surface of the closed plug is lower than the height of outlet 5, the chamber corresponding to the closed plug is filled with aquaculture wastewater; while the chamber corresponding to the open plug is filled with wastewater. The height of the bottom surface of the head is higher than the height of the outlet 5. Therefore, the cavity corresponding to the open plug is not filled with liquid. That is, there is a gap between the liquid level in the cavity and the bottom surface of the open plug. This gap is connected to the outside through the connecting hole 4. The cavities corresponding to the closed plug and the open plug respectively form an anaerobic environment cavity and an aerobic environment cavity. The whole device is a micro-oxygen environment. In the anaerobic environment cavity, aerobic bacteria will be inhibited. In the aerobic environment cavity, anaerobic bacteria will be inhibited. However, photosynthetic bacteria can reproduce effectively in both aerobic and anaerobic environments without being significantly inhibited. Thus, they gain a competitive advantage in the light-micro-oxygen environment of the device and then carry out biological fermentation treatment of aquaculture wastewater.

[0034] like Figure 1 and Figure 4 As shown, the grilles 12 are set at equal angles, which can intercept most impurities and keep them inside the storage cavity 15.

[0035] When it is necessary to clean the impurities in the device, stop the discharge of wastewater and clean it by means of the cleaning component, which includes a motor 8, a toothed disc 9, a toothed ring 10 and a scraper 11. The motor 8 is fixed on the upper surface of the upper tank cover 2. The toothed disc 9 is fixed on the output end of the motor 8. The toothed ring 10 is meshed with the outer end of the toothed disc 9. The toothed ring 10 is rotatably installed on the bottom end of the upper tank cover 2. The scraper 11 is fixed on the lower surface of the toothed ring 10. The outer side of the scraper 11 is in contact with the outer side of the transparent ring 6. The longitudinal section of the bottom end of the scraper 11 is an "L" shaped structure. The spacing between the grids 12 is greater than the thickness of the scraper 11.

[0036] When it is necessary to clean the transparent ring 6, stop the liquid dispensing, and the motor 8 drives the toothed disc 9 to rotate, so that the toothed ring 10 and the scraper 11 rotate around the transparent ring 6. The outer surface of the transparent ring 6 is cleaned by the rotation of the scraper 11, thereby ensuring the effect of the light source module inside the transparent ring 6.

[0037] Since the length of the grid 12 is less than the width of the cavity, the scraper 11 can move. When the bottom end of the scraper 11 rotates, it can scrape the impurities in the storage cavity 15. After rotating the processing cover 13 and removing the processing cover 13 from the lower tank cover 7, all the impurities in the storage cavity 15 can be moved to the discharge port for easy full discharge.

[0038] The above completes a series of operations for the fermentation equipment used to cultivate photosynthetic bacteria in aquaculture wastewater. Any content not described in detail in this instruction belongs to the prior art known to those skilled in the art.

[0039] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0040] 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 fermentation device for cultivating photosynthetic bacteria in aquaculture wastewater, comprising a tank (1), an upper tank cover (2), and a lower tank cover (7), characterized in that: The tank body (1) is equipped with an upper tank cover (2), and the upper tank cover (2) is provided with a water inlet (3) in the middle. The water inlet (3) is provided with a connecting hole (4) inside the upper tank cover (2) on the outside. The tank body (1) is provided with a water outlet (5) on the right end. The bottom of the upper can cover (2) is equipped with multiple sets of transparent rings (6), and the bottom of the multiple sets of transparent rings (6) is installed on the top of the lower can cover (7). A light source module is installed inside the transparent ring (6). A cleaning component is installed on the upper can cover (2). A grid (12) is fixed at the bottom of the transparent ring (6) and the bottom of the can body (1). A storage cavity (15) is opened inside the lower can cover (7). A flange (14) is fixed on the outer side of the lower can cover (7), the can body (1) and the upper can cover (2). A processing cover (13) is provided at the bottom of the storage cavity (15).

2. The fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater according to claim 1, characterized in that: The connecting hole (4) is opened at an equal angle inside the upper can lid (2).

3. The fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater according to claim 1, characterized in that: The flanges (14) on the upper tank cover (2) and the lower tank cover (7) are fixedly connected to the flanges (14) on the tank body (1) by screws.

4. The fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater according to claim 1, characterized in that: The cleaning assembly includes a motor (8), a toothed disc (9), a toothed ring (10), and a scraper (11). The upper surface of the upper can cover (2) is fixed with the motor (8). The output end of the motor (8) is fixed with the toothed disc (9). The outer end of the toothed disc (9) is meshed with the toothed ring (10). The toothed ring (10) is rotatably mounted on the bottom end of the upper can cover (2). The lower surface of the toothed ring (10) is fixed with the scraper (11).

5. The fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater according to claim 4, characterized in that: The outer side of the scraper (11) is in contact with the outer side of the transparent ring (6).

6. The fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater according to claim 4, characterized in that: The bottom longitudinal section of the scraper (11) is an "L" shaped structure, and the spacing between the grids (12) is greater than the thickness of the scraper (11).

7. The fermentation equipment for cultivating photosynthetic bacteria in aquaculture wastewater according to claim 1, characterized in that: The connection between the processing cover (13) and the lower can cover (7) is a threaded connection.

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