Rotatable algae bio-membrane reactor
By filling the rotary biofilm reactor with bacterial houses and installing LED beads, the problems of algal microbial attachment and growth, as well as activity on cloudy or rainy days, were solved, achieving rapid biofilm establishment and efficient wastewater treatment.
Patent Information
- Application Number
- CN202520806031.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-26
AI Technical Summary
Algae and microorganisms have difficulty attaching and growing in existing rotary biofilm reactors, and weak light on cloudy or rainy days affects their activity, resulting in poor wastewater treatment.
The design incorporates a rotatable algal biofilm reactor. The interior of the rotating disc is filled with bacterial houses, and LED beads are installed on the disc. The rotation is driven by a motor, enabling rapid attachment and growth of algae and microorganisms, as well as supplemental lighting on cloudy or rainy days.
It improves the establishment speed of algal biofilm, stabilizes algal activity, enhances wastewater treatment effect, reduces energy consumption, and improves the practicality of the device.
Smart Images

Figure CN223837201U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biofilm reactor technology, and more specifically, to a rotatable algal biofilm reactor. Background Technology
[0002] A biofilm reactor is a reactor based on biofilm technology, in which pollutants are degraded or transformed by microorganisms on the biofilm.
[0003] However, many rotating biofilm reactors nowadays have solid rotating discs, making it difficult for algae and microorganisms to attach and grow on the surface to form an algal biofilm. This affects the speed and effectiveness of biofilm establishment. At the same time, the activity of algae will also decrease in environments with low light, such as rainy days. This leads to problems such as affecting the wastewater treatment effect and reducing its practicality.
[0004] In view of this, we have studied and improved upon the existing problems to provide a rotatable algal biofilm reactor, aiming to solve the problems and improve its practical value through this technology. Utility Model Content
[0005] The purpose of this invention is to provide a rotatable algal biofilm reactor to solve the problems and shortcomings mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides a rotatable algal biofilm reactor, which is achieved through the following specific technical means:
[0007] A rotatable algal biofilm reactor includes: a reaction tank, a rotating shaft, a drive motor, a turntable, bacterial houses, a cover plate, a lamp holder, and LED beads. The rotating shaft is mounted on the upper middle part of the reaction tank via a bearing seat, and a drive motor connected to the rotating shaft is also mounted on one end of the upper part of the reaction tank. The turntable is mounted on the middle of the rotating shaft via a flat key, and the interior of the turntable is uniformly filled with bacterial houses. The cover plate is fixed to the front end face of the turntable with screws. The lamp holder is fixed across the upper part of the reaction tank with bolts, and LED beads are embedded in the inner wall of the lamp holder.
[0008] As a further optimization of this technical solution, the rotating disk of the rotatable algae biofilm reactor of this utility model has an open front and a mesh-like circular structure at the rear, and multiple rotating disks are evenly installed in an axial arrangement on the rotation axis.
[0009] As a further optimization of this technical solution, the cover plate of the rotatable algae biofilm reactor of this utility model has a circular mesh structure, and the gap between the cover plate and the turntable is filled with bacterial houses.
[0010] As a further optimization of this technical solution, the lamp holder of the rotatable algae biofilm reactor of this utility model has an inverted U-shaped structure, and multiple LED beads are evenly installed on the inner wall of the lamp holder in an arc-shaped arrangement.
[0011] As a further optimization of this technical solution, half of the rotating disk of the rotatable algae biofilm reactor of this utility model is located inside the rectangular reaction tank, and the other half is located above it.
[0012] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0013] 1. The rotating algal biofilm reactor of this invention, by filling the inside of the rotating disc with bacterial houses, facilitates better attachment, growth and reproduction of algal microorganisms, and makes it easier to establish an algal biofilm more quickly, thereby improving the sewage treatment effect and further enhancing the practical performance of the device.
[0014] 2. The rotatable algae biofilm reactor of this utility model adds a lamp holder above the turntable and uses LED beads on the lamp holder to supplement light in low light environments such as cloudy or rainy days, stabilizes the activity of algae, and improves the sewage treatment effect, thereby further enhancing the practical value of the device.
[0015] 3. Through structural improvements to the above-mentioned device, this utility model has the advantages of good algal microbial attachment and growth effect, supplementary lighting function, full stabilization of algal activity, and improved sewage treatment effect, making it more practical and valuable, thereby effectively solving the problems and shortcomings of existing technologies and equipment. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a side view of the structure of this utility model;
[0019] Figure 3 This is a partially exploded structural diagram of the present invention;
[0020] Figure 4 This is a schematic diagram of the LED bead position structure of this utility model.
[0021] In the diagram: 1. Reaction tank; 2. Rotating shaft; 3. Drive motor; 4. Turntable; 5. Bacterial house; 6. Cover plate; 7. Lamp holder; 8. LED beads. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Please see Figures 1 to 4 This utility model provides a specific technical implementation scheme for a rotatable algal biofilm reactor:
[0024] A rotatable algal biofilm reactor includes: a reaction tank 1, a rotating shaft 2, a drive motor 3, a turntable 4, a bacterial house 5, a cover plate 6, a lamp holder 7, and LED beads 8. The rotating shaft 2 is mounted on the upper middle part of the reaction tank 1 via a bearing seat, and the drive motor 3 connected to the rotating shaft 2 is also mounted on one end of the upper part of the reaction tank 1. The turntable 4 is mounted on the middle of the rotating shaft 2 via a flat key, and the interior of the turntable 4 is uniformly filled with bacterial houses 5. The cover plate 6 is fixedly mounted on the front end face of the turntable 4 with screws. The lamp holder 7 is fixed across the upper part of the reaction tank 1 with bolts, and LED beads 8 are embedded in the inner wall of the lamp holder 7.
[0025] Specifically, the turntable 4 has an open front and a mesh-like circular structure at the back. Multiple turntables 4 are evenly installed axially on the rotating shaft 2. The turntable 4 is driven by the drive motor 3 to rotate slowly in the reaction tank 1, thereby alternately exposing itself to sewage and air to enhance photosynthesis and pollutant adsorption.
[0026] Specifically, the cover plate 6 has a circular mesh structure, and the gap between the cover plate 6 and the turntable 4 is filled with bacterial houses 5. The mesh structure of the cover plate 6 facilitates the attachment and growth of algae and microorganisms, and facilitates the formation of a basic scaffold of cell membrane composed of phospholipid bilayer on the surface.
[0027] Specifically, the lamp holder 7 has an inverted U-shaped structure, and multiple LED beads 8 are evenly installed in an arc-shaped arrangement on the inner wall of the lamp holder 7, combined with... Figure 1 and Figure 2 As shown, multiple lamp holders 7 are evenly spaced at the top of the reaction tank 1 and located above the turntable 4, so that the LED beads 8 on the inner wall can provide supplemental lighting for the algae on the turntable 4 and stabilize their activity.
[0028] Specifically, half of the turntable 4 is located inside the rectangular reaction tank 1, and the other half is located above it.
[0029] Specific implementation steps
[0030] In use, the drive motor 3 first drives the turntable 4 to rotate slowly in the reaction tank 1, so that the turntable 4 is alternately exposed to sewage and air in order to enhance photosynthesis and pollutant adsorption. In addition, in the case of cloudy or rainy days with weak light, LED beads 8 can be used to supplement light to stabilize algae activity. Thus, the device is suitable for secondary treatment in urban sewage treatment plants, and can simultaneously remove nitrogen and phosphorus. The energy consumption is reduced by 30% compared with traditional aeration processes.
[0031] In summary, this rotatable algal biofilm reactor, by filling the inside of the rotating disc with bacterial houses, facilitates better attachment, growth, and reproduction of algae and microorganisms, enabling the faster establishment of an algal biofilm and thus improving wastewater treatment efficiency and overall practicality. Furthermore, the addition of a light stand above the rotating disc, utilizing LED beads on the stand, provides supplemental lighting in low-light conditions, such as cloudy or rainy days, stabilizing algal activity and further enhancing wastewater treatment effectiveness. This further improves the practical value of the device and solves the problems existing in current technologies.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rotatable algal biofilm reactor, comprising: The reaction tank (1), rotating shaft (2), drive motor (3), turntable (4), bacterial house (5), cover plate (6), lamp holder (7), and LED beads (8) are characterized in that: the rotating shaft (2) is installed in the middle of the upper part of the reaction tank (1) through a bearing seat, and the drive motor (3) connected to the rotating shaft (2) is also installed at one end of the upper part of the reaction tank (1); the turntable (4) is installed in the middle of the rotating shaft (2) through a flat key, and the interior of the turntable (4) is uniformly filled with bacterial houses (5); the cover plate (6) is fixedly installed on the front end face of the turntable (4) by screws; the lamp holder (7) is fixed across the upper part of the reaction tank (1) by bolts, and LED beads (8) are embedded in the inner wall of the lamp holder (7).
2. The rotatable algal biofilm reactor according to claim 1, characterized in that: The turntable (4) has an open front and a mesh-like circular structure at the back, and multiple turntables (4) are evenly installed on the rotating shaft (2) in an axial arrangement.
3. The rotatable algal biofilm reactor according to claim 1, characterized in that: The cover plate (6) has a circular mesh structure, and the gap between the cover plate (6) and the turntable (4) is filled with bacterial houses (5).
4. The rotatable algal biofilm reactor according to claim 1, characterized in that: The lamp holder (7) has an inverted U-shaped structure, and multiple LED beads (8) are evenly installed on the inner wall of the lamp holder (7) in an arc-shaped arrangement.
5. The rotatable algal biofilm reactor according to claim 1 or 2, characterized in that: Half of the turntable (4) is located inside the rectangular reaction tank (1), and the other half is located above it.