Sunlight steering and gathering three-dimensional bacteria-algae cooperation sewage low-carbon purification device

Abstract

The utility model discloses a sunlight steering and gathering three-dimensional bacteria-algae cooperation sewage low-carbon purification device which comprises a sewage pool, a fixed bracket erected in the sewage pool, and a plurality of biofilm carriers arranged on the fixed bracket at equal intervals along the vertical direction, the top end of the fixed support is provided with a sunlight steering and gathering system which is rotatably connected through a rotatable support, the focal length position of the sunlight steering and gathering system is connected with a large-core plastic optical fiber, and the fixed support between every two adjacent biofilm carriers is provided with a light guide plate used for distributing light to the biofilm carriers; a collimator used for being in butt joint with one optical fiber branch line in the large-core plastic optical fiber is arranged on the light inlet side of each light guide plate. According to the utility model, multiple groups of bacteria-algae biological membranes are vertically arranged, so that the space utilization rate is improved; and the illumination effect is improved through a sunlight gathering and enhancing system, the photosynthesis efficiency is enhanced, and the purification effect of bacteria-algae cooperation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage purification equipment, in particular to a sunlight-deflecting and gathering three-dimensional bacteria-algae cooperative sewage low-carbon purification device. Background Art

[0002] The mainstream process of sewage treatment in my country relies on microorganisms to consume dissolved oxygen to oxidize and decompose pollutants in water to produce CO2 and residual sludge. This process requires aeration and oxygen supply, which consumes a lot of energy, accounting for about 50% of the energy consumption of sewage treatment, and emits a large amount of greenhouse gases such as CO2, which cannot meet the requirements of synergistic efficiency of sewage treatment pollution reduction and carbon reduction. At present, the use of algae and bacteria to purify sewage is an effective way to achieve synergistic efficiency of pollution reduction and carbon reduction. Algae provide oxygen to microorganisms (bacteria, etc.) through photosynthesis, reducing the demand for external oxygen supply. At the same time, the CO2 produced by microorganisms oxidizing and decomposing pollutants is provided to algae as a carbon source for growth. Algae can also absorb and degrade pollutants. In this way, in the process of purifying pollutants, the interactive supply of O2 and CO2 is realized, and bacteria and algae strengthen the removal of nitrogen and phosphorus nutrients to achieve sustainable development of sewage treatment.

[0003] However, there are two application difficulties when using the bacteria-algae process for sewage treatment: first, the algae growth cycle is slow and requires a long residence time. Sufficient algae are needed to treat a large amount of sewage, so a large area is needed to maintain the biomass of bacteria and algae, which is difficult to implement under the premise of tight urban land use. Second, the algae are suspended in the sewage and have weak light transmittance. The algae in the lower sewage have insufficient light absorption intensity, resulting in low photosynthesis efficiency of the algae and low water purification efficiency, which has become the main bottleneck restricting the application of the bacteria-algae process. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a three-dimensional bacteria-algae cooperative sewage low-carbon purification device that can redirect and gather sunlight.

[0005] The technical solution of the utility model is: a three-dimensional sunlight redirection and concentration bacteria-algae cooperative sewage low-carbon purification device, including a sewage pool, a fixed bracket erected in the sewage pool, and a plurality of biofilm carriers arranged on the fixed bracket at equal vertical intervals; a sunlight redirection and concentration system rotatably connected via a rotatable bracket is arranged on the top of the fixed bracket, and a large-core plastic optical fiber is connected at the focal length of the sunlight redirection and concentration system, a light guide plate for distributing light to the biofilm carriers is arranged on the fixed bracket between each two adjacent biofilm carriers, and a collimator for docking with an optical fiber branch in the large-core plastic optical fiber is arranged on the light incident side of each light guide plate.

[0006] Furthermore, the sunlight steering and concentrating system includes a TIR lens and a sunlight tracker, wherein the sunlight tracker is disposed on the TIR lens, and the TIR lens is connected to the rotatable bracket.

[0007] Description: TIT lens has the advantages of high luminous flux and uniform brightness, which can make the light distribution more uniform and avoid the problem of poor focusing effect. The sunlight tracker can calculate the sun's position in real time, and the motor drives the rotation angle of the rotatable bracket to achieve the TIR lens driven by the sunlight tracker to change consistently with the sunlight angle, ensuring that sunlight is always incident on the TIR lens in a vertical direction, ensuring the maximum light intensity every day, thereby ensuring the light guiding effect of large-core plastic optical fiber and light guide plate.

[0008] Furthermore, the sewage pool has a cylindrical cone-bottom structure, a water inlet pipe is provided on one side of the cylindrical side wall of the sewage pool, a water outlet pipe is provided on the other side, and a bacteria and algae discharge outlet is provided at the cone bottom of the sewage pool.

[0009] Description: The cylindrical cone bottom structure design of the sewage pool can facilitate the aggregation of bacteria and algae, so that the bacteria and algae can be discharged more quickly from the bacteria and algae outlet, which is convenient for the concentration and collection of bacteria and algae and the subsequent resource and energy utilization.

[0010] Furthermore, the biofilm carrier is composed of a driving shaft, a passive shaft and a power transmission belt sleeved on the driving shaft and the passive shaft. The driving shaft is parallel to the passive shaft and is respectively arranged at the top and bottom ends of the fixed bracket. The top of the fixed bracket is provided with a speed regulating motor for driving the driving shaft to rotate.

[0011] Description: Through the rotation and circulation setting of the biofilm carrier, the sewage can be evenly and fully contacted with the biofilm mounted on the power transmission belt, thereby improving the sewage treatment effect, and the speed of the speed regulating motor can be adjusted according to the actual treatment efficiency to control the movement speed of the biofilm.

[0012] Furthermore, a cam is provided at one end of the driving shaft, and an extrusion airbag cooperating with the cam is provided on the fixed bracket, an airbag column is provided on one side of the light guide plate, and one end of the airbag column is connected with the extrusion airbag through an air pipe, and a scraper for scraping the light guide plate is provided at the other end of the airbag column, the scraper is slidably connected to the light guide plate up and down, and a pin for venting the air from the airbag column outlet is provided on the fixed bracket.

[0013] Description: Through the setting of the cam, the extrusion airbag and the airbag column, the rotation of the driving shaft can be used to pump air to the airbag column, so that the scraper can clean the surface of the light guide plate to prevent stains from affecting the lighting effect of the light guide plate, and in this drive system, there is no need to set up an additional drive motor to achieve the above functions.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The utility model's three-dimensional sunlight-redirecting and focusing bacteria-algae collaborative sewage low-carbon purification device improves space utilization by vertically placing multiple groups of bacteria-algae biofilms, thereby reducing horizontal floor space and increasing biomass; and improves lighting effects and photosynthesis efficiency through a sunlight-focusing enhancement system, thereby improving the purification effect of bacteria-algae collaboration.

[0016] (2) The utility model's three-dimensional bacteria-algae cooperative sewage low-carbon purification device redirects and concentrates sunlight, significantly improving the utilization rate of sunlight by redirecting and concentrating the light path, solving the problem of uneven illumination caused by changes in sunlight angle and device position, and improving the illumination rate.

[0017] (3) The utility model's three-dimensional sunlight-directed and concentrated bacteria-algae cooperative sewage low-carbon purification device uses a rotating circulation arrangement of the biofilm carrier to allow the sewage to be evenly and fully contacted with the biofilm, thereby improving the sewage treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the device of the utility model;

[0019] Figure 2 It is a side view of the device of the utility model;

[0020] Figure 3 This is a schematic diagram of the positional relationship among the TIR lens, large core plastic optical fiber, collimator and light guide plate of the utility model;

[0021] Figure 4 This is a schematic diagram of the biofilm carrier structure of the device of Example 2 of the utility model;

[0022] Among them, 1- sewage pool, 11- water inlet pipe, 12- water outlet pipe, 13- bacteria and algae outlet, 2- fixed bracket, 3- biofilm carrier, 31- driving shaft, 32- passive shaft, 33- power transmission belt, 34- cam, 35- extrusion airbag, 4- rotatable bracket, 5- sun light steering and focusing system, 51- TIR lens, 52- sun light tracker, 6- large core plastic optical fiber, 7- light guide plate, 8- collimator, 9- airbag column, 91- scraper, 92- ejector pin. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with specific implementation methods to better reflect the advantages of the present invention.

[0024] Example 1: A three-dimensional bacterial-algae-cooperative low-carbon sewage purification device for sunlight redirection and concentration, such as Figure 1 and Figure 2As shown, it includes a sewage pool 1, a fixed support 2 erected in the sewage pool 1, and a plurality of biofilm carriers 3 arranged on the fixed support 2 at equal intervals along the vertical direction; a sunlight steering and concentrating system 5 is arranged on the top of the fixed support 2 and is rotatably connected through a rotatable support 4, and a large-core plastic optical fiber 6 is connected at the focal length of the sunlight steering and concentrating system 5, and a light guide plate 7 for distributing light to the biofilm carrier 3 is arranged on the fixed support 2 between each two adjacent biofilm carriers 3, as shown in FIG. Figure 3 As shown, the light incident side of each light guide plate 7 is provided with a collimator 8 for docking with an optical fiber branch line in the large-core plastic optical fiber 6;

[0025] Among them, Figure 2 As shown, the sunlight redirection and concentration system 5 includes a TIR lens 51 and a sunlight tracker 52. The sunlight tracker 52 is arranged on the TIP lens 51. The TIP lens 51 is connected to the rotatable bracket 4. It can be understood that the rotatable bracket 4 is connected to the rotatable bracket 4 by Figure 1 The bracket shown is composed of a commercially available rotating motor arranged on the fixed bracket 2, and the commercially available rotating motor is connected to the solar tracker 52 through a single-chip microcomputer and a connecting line. The solar tracker 52 and the single-chip microcomputer are both purchased from the market.

[0026] like Figure 1 As shown, the sewage pool 1 is a cylindrical cone-bottom structure, a water inlet pipe 11 is provided on one side of the cylindrical side wall of the sewage pool 1, a water outlet pipe 12 is provided on the other side, and a bacteria and algae discharge port 13 is provided on the cone bottom of the sewage pool 1;

[0027] like Figure 2 As shown, the biofilm carrier 3 is composed of a driving shaft 31, a passive shaft 32 and a power transmission belt 33 sleeved on the driving shaft 31 and the passive shaft 32. The driving shaft 31 is parallel to the passive shaft 32 and is respectively arranged at the top and bottom ends of the fixed bracket 2. The top of the fixed bracket 2 is provided with a speed regulating motor for driving the driving shaft 31 to rotate.

[0028] The working method of the above-mentioned sunlight redirection and concentration three-dimensional bacteria-algae cooperative sewage low-carbon purification device is:

[0029] First, the bacteria and algae are attached to the power transmission belt 33 (elastic silicone film carrier) to form a biofilm, and the power transmission belt 33 is sleeved on the active shaft 31 and the passive shaft 32, perpendicular to the sewage pool 1, and the passive shaft 9 is immersed in the sewage pool, and the active shaft 7 is perpendicular to the passive shaft 32 and exposed to the atmosphere.

[0030] At the same time, the device is arranged in the east-west direction, and the sunlight is tracked by the sunlight tracker 52, so that the sunlight is always incident on the TIR lens 51 in a vertical direction to ensure the maximum light intensity every day. Then the sunlight is guided to each optical fiber branch through the large-core plastic optical fiber 6, and the light is evenly distributed on the light guide plate 7 through the action of the collimator 8;

[0031] During operation, sewage flows into the sewage pool 1 from one side of the cylindrical bottom and flows out from the top of the cylinder on the other side of the diagonal line. The fallen algae biofilm is concentrated by the cone bottom and then discharged from the algae outlet 13 for collection and utilization.

[0032] At the same time, the rotation speed of the driving shaft 31 can be controlled by the speed regulating motor, thereby controlling the moving speed of the power transmission belt 33 in the illumination area of ​​the light guide plate 7, so that the bacteria and algae biofilm carrier can be in uniform, stable and repeated contact with the sewage and the atmosphere, rotate into the sewage to absorb pollutants, and rotate into the atmosphere, and the bacteria and algae cooperate to decompose the pollutants;

[0033] In addition, a plurality of groups of bacteria and algae biofilm carriers (each group has a width of 6 cm) can be arranged on a group of active shafts 31 and passive shafts 32, such as Figure 1 As shown, three groups are set, and a 1 cm gap is left between each group to facilitate the shedding of the biofilm. The number of groups of the biofilm carriers 3 is flexibly set according to the area of ​​the sewage pool 1 and the sewage treatment effect.

[0034] Embodiment 2: This embodiment differs from Embodiment 1 in that Figure 4 As shown, a cam 34 is provided at one end of the driving shaft 31, and an extrusion airbag 35 cooperating with the cam 34 is provided on the fixed bracket 2, an airbag column 9 is provided on one side of the light guide plate 7, and one end of the airbag column 9 is connected with the extrusion airbag 35 through an air pipe, and a scraper 91 for scraping the light guide plate 7 is provided at the other end of the airbag column 9, and the scraper 91 is connected to the light guide plate 7 in an up-and-down sliding manner, and a ejector pin 92 for exhausting the air from the airbag column 9 is provided on the fixed bracket 2, as shown in FIG. Figure 4 As shown, the air vent passes through the scraper 91 to facilitate triggering with the ejector pin 92.

[0035] The working method of the above-mentioned sunlight redirection and concentration three-dimensional bacteria-algae cooperative sewage low-carbon purification device is:

[0036] On the basis of Example 1, when the driving shaft 31 rotates, the cam 34 periodically presses down the extruded airbag 35, so that the extruded airbag 35 continues to inject air into the airbag column 9, so that the airbag column 9 continues to extend, thereby driving the scraper 91 to scrape the light guide plate 7. When the scraper 91 moves to the position of the ejector pin 92, the ejector pin 92 presses down the air vent on the scraper 91 to open the air vent and release the gas in the airbag column 9. Under the action of the gravity of the scraper 91, the airbag column 9 is pressed down and collapsed, thereby realizing the fall and reset of the scraper 91.

[0037] Example 3: The difference between this example and Example 2 is that an air discharge valve is provided on the airbag column 9, and a pressure sensor is also provided on the scraper 91 located at the air discharge valve. The pressure detection of the pressure sensor is utilized to control the opening of the air discharge valve through the single-chip microcomputer. It can be understood that the pressure sensor, the single-chip microcomputer and the air discharge valve are all selected from commercially available products.

[0038] The working method of the above-mentioned sunlight redirection and concentration three-dimensional bacteria-algae cooperative sewage low-carbon purification device is:

[0039] The difference from Example 2 is that this embodiment does not have a pin 92, but instead uses the detection of a pressure sensor to control the opening of the air release valve through the single-chip microcomputer to relieve the pressure of the airbag column 9, and then the airbag column 9 is pressed down and collapsed under the action of the gravity of the scraper 91, so that the scraper 91 falls back and resets.

Claims

1. A sunlight-redirecting and concentrating three-dimensional bacteria-algae cooperative sewage low-carbon purification device, comprising a sewage pool (1), a fixed support (2) erected in the sewage pool (1), and a plurality of biofilm carriers (3) arranged on the fixed support (2) at equal intervals in the vertical direction; characterized in that: The top of the fixed support (2) is provided with a sunlight redirection and concentration system (5) which is rotatably connected via a rotatable support (4), and a large-core plastic optical fiber (6) is connected at the focal point of the sunlight redirection and concentration system (5). A light guide plate (7) for distributing light to the biofilm carrier (3) is provided on the fixed support (2) between each two adjacent biofilm carriers (3), and a collimator (8) for docking with an optical fiber branch in the large-core plastic optical fiber (6) is provided on the light incident side of each light guide plate (7).

2. A three-dimensional sunlight-directed and concentrated bacteria-algae-cooperative low-carbon sewage purification device as claimed in claim 1, characterized in that: The sunlight redirection and concentration system (5) comprises a TIR lens (51) and a sunlight tracker (52), wherein the sunlight tracker (52) is arranged on the TIR lens (51), and the TIR lens (51) is connected to the rotatable bracket (4).

3. A three-dimensional sunlight-redirecting and -gathering bacteria-algae-cooperative low-carbon sewage purification device as claimed in claim 1, characterized in that: The sewage pool (1) is of a cylindrical conical bottom structure, a water inlet pipe (11) is provided on one side of the cylindrical side wall of the sewage pool (1), a water outlet pipe (12) is provided on the other side, and a bacteria and algae discharge port (13) is provided on the conical bottom of the sewage pool (1).

4. A three-dimensional sunlight-redirecting and -collecting bacteria-algae-cooperative low-carbon sewage purification device as claimed in claim 1, characterized in that: The biofilm carrier (3) is composed of a driving shaft (31), a passive shaft (32), and a power transmission belt (33) sleeved on the driving shaft (31) and the passive shaft (32); the driving shaft (31) and the passive shaft (32) are parallel and respectively arranged at the top and bottom ends of a fixed bracket (2); and a speed regulating motor for driving the driving shaft (31) to rotate is provided at the top end of the fixed bracket (2).

5. A three-dimensional bacteria-algae cooperative sewage low-carbon purification device for sunlight redirection and concentration as claimed in claim 4, characterized in that: A cam (34) is provided at one end of the driving shaft (31), and an extrusion airbag (35) cooperating with the cam (34) is provided on the fixed bracket (2). An airbag column (9) is provided on one side of the light guide plate (7), and one end of the airbag column (9) is connected to the extrusion airbag (35) through an air pipe, and a scraper (91) for scraping the light guide plate (7) is provided at the other end of the airbag column (9), and the scraper (91) is connected to the light guide plate (7) in an up-and-down sliding manner, and a ejector pin (92) for exhausting air from the air outlet of the airbag column (9) is provided on the fixed bracket (2).

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