CN216997858U - Algae production device with adjustable growth conditions - Google Patents
Algae production device with adjustable growth conditions Download PDFInfo
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- CN216997858U CN216997858U CN202220417639.XU CN202220417639U CN216997858U CN 216997858 U CN216997858 U CN 216997858U CN 202220417639 U CN202220417639 U CN 202220417639U CN 216997858 U CN216997858 U CN 216997858U
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Abstract
The utility model discloses an algae production device with adjustable growth conditions, which comprises a device body, wherein a spraying assembly, a light source assembly and an algae growth layer are arranged in the device body from top to bottom; the algae growth layer is communicated to the spraying assembly through a spraying main pipe, a spraying pump is arranged on the spraying main pipe, the spraying main pipe is connected with a water inlet pipe, and a water inlet pump is arranged on the water inlet pipe; the device body is positioned between the algae growth layer and the light source component and is connected with an air inlet pipe for introducing carbon dioxide gas; the bottom of the algae growth layer is connected with a discharge pipe. The algae production device with adjustable growth conditions provided by the utility model can absorb carbon dioxide while enriching nitrogen and phosphorus.
Description
Technical Field
The utility model belongs to the technical field of wastewater treatment, and particularly relates to an algae production device with adjustable growth conditions.
Background
Algae photosynthesis converts inorganic carbon into organic carbon, and is a typical representative of biological carbon sequestration. In addition, the algae has high utilization efficiency on nitrogen and phosphorus, and can effectively remove pollutants such as NH4+, NO3-, PO 43-and the like in the sewage, thereby reducing the eutrophication risk of sewage discharge receiving water bodies. Removing nitrogen and phosphorus by using algae A except photosynthesis2Method for purifying micro polluted water body, CO, by adopting/O, AB, SBR, biomembrane, artificial wetland and the like2The emission of CO is 0.5-1.0 kg2Eq/ton of water.
The factors mainly considered in designing the algae culture system are gas-liquid mass transfer rate, light energy utilization efficiency, microalgae yield, amplification cost and the like.
Currently, there are two broad categories of algae cultivation systems, open (mainly racetrack) and closed (columnar, flat, tubular and spiral, etc.).
The method has the advantages of large open type required space, low illumination utilization rate, low carbon source utilization rate, long production period, low energy consumption, low investment cost, low biomass yield, high algae collection cost, economic manufacturing cost and operation cost, large culture volume, suitability for large-scale culture, small illumination specific surface area, low biomass yield and difficulty in controlling culture conditions. The general material is concrete, plastic, metal material, impermeable plastic film, etc.
The closed type culture medium has the advantages of small required space, high illumination utilization rate, relatively high carbon source utilization rate, short production period, high energy consumption, high investment cost, high biomass yield, low algae collection cost, large illumination specific surface area, good gas-liquid mass transfer effect and controllable culture parameters. High cost, small culture volume and difficult realization of large-scale application. Generally, transparent materials such as rigid plastics, plastic films, glass, organic glass and the like are adopted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an algae production device with adjustable growth conditions, which can treat nitrogen and phosphorus wastewater, reduce carbon dioxide waste gas and have the double effects of reducing pollution and carbon.
Based on the problems, the technical scheme provided by the utility model is as follows:
an algae production device with adjustable growth conditions comprises a device body, wherein a spraying assembly, a light source assembly and an algae growth layer are arranged in the device body from top to bottom;
the algae growth layer is communicated to the spraying assembly through a spraying main pipe, a spraying pump is arranged on the spraying main pipe, the spraying main pipe is connected with a water inlet pipe, and a water inlet pump is arranged on the water inlet pipe;
the device body is positioned between the algae growth layer and the light source component and is connected with an air inlet pipe for introducing carbon dioxide gas;
the bottom of the algae growth layer is connected with a discharge pipe.
In some of these embodiments, the spray assembly includes a plurality of spray manifolds connected to the spray header, and a plurality of spray headers mounted on the spray manifolds.
In some embodiments, the light source assembly includes two support plates disposed in parallel up and down, and a plurality of light source tubes installed between the two support plates and spaced apart from each other, and the support plates are provided with a plurality of algae drip holes.
In some embodiments, the light source tube has a height of 10 to 15m and a diameter of 10 to 30 mm.
In some embodiments, the device body is provided with a plurality of air holes below the air inlet pipe.
In some embodiments, the plurality of ventilation holes are arranged in a staggered manner in multiple layers along the circumferential direction of the device body.
In some embodiments, the plurality of air holes are arranged in 3-5 layers.
In some embodiments, the diameter of the air hole is 200-300 mm, and the interval between two adjacent layers is 500 mm.
In some embodiments, the device body is provided with a defogging layer above the spray assembly.
In some embodiments, the device body has a height of 15-20 m and a diameter of 2-20 m.
Compared with the prior art, the utility model has the advantages that:
1. the algae absorbs nitrogen, phosphorus and carbon dioxide in tail gas in the water body to generate carbohydrate, and A except photosynthesis of the algae is reduced2Method for treating CO discharged by water body by adopting/O, AB, SBR, biomembrane, artificial wetland and the like2Carbon dioxide is fixed, so that pollutants are removed, the emission of the carbon dioxide is reduced, and the dual effects of reducing pollution and reducing carbon are achieved;
2. the light source tubes are vertically and uniformly arranged in the algae production device, the specific surface area is large, the light energy utilization rate is high, the algae production rate is high, the spraying flow is controlled by adopting a closed circulating pump, the illumination intensity is adjustable, the algae growth condition is controllable, the growth rate is stable, and the algae quality is stable;
3. the algae production device adopts a vertical structure, and is 1/5-1/10 of the land occupied by a horizontal tank body;
4. the algae production device is internally provided with a detachable light source tube, continuous illumination is carried out for 24 hours, the time is 2-3 times of the natural illumination time of the open type culture system, the algae yield is 2-3 times of the natural illumination time of the open type culture system, the diameter of the light source tube is 10-30 mm, the specific surface area is large, and the light energy utilization rate is high;
5. the bottom of the device body is provided with the air holes, the interior of the device body is micro-negative pressure, and the micro-positive pressure of the tail gas of the cogeneration unit or the boiler can be introduced into the algae production device without a pressurizing device of a closed culture system, so that the energy consumption is saved;
6. the tail gas is used for treating the water body containing nitrogen and phosphorus, and the high-temperature tail gas heats the algae liquid in the algae production device, the temperature of the algae liquid is controlled not to exceed 40 ℃, and the algae production speed is increased.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of an embodiment of an algae production apparatus with adjustable growth conditions according to the present invention;
FIG. 2 is a schematic structural diagram of a support plate according to an embodiment of the present invention;
wherein:
1. a device body;
2. a water inlet pipe;
3. a water inlet pump;
4. a main spray pipe;
5. a spray pump;
6. an air inlet pipe;
7. spraying branch pipes;
8. a shower head;
9. a support plate; 9-1, dropping algae liquid;
10. a light source tube;
11. a defogging layer;
12. air holes are formed;
13. an access hole;
14. algae liquid;
15. a discharge pipe.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Referring to fig. 1, which is a schematic structural view of an embodiment of the present invention, an algae production apparatus with adjustable growth conditions is provided, including an apparatus body 1, in which a spraying assembly, a light source assembly, and an algae growth layer are arranged from top to bottom, and the algae growth layer is filled with algae liquid 14 formed by mixing algae and wastewater.
The algae growth layer is communicated to the spraying component through a spraying main pipe 4, a spraying pump 5 is arranged on the spraying main pipe 4, the spraying main pipe 4 is connected with a water inlet pipe 2, and a water inlet pump 3 is arranged on the water inlet pipe 2. The algae liquid in the device body 1 is circulated by a variable frequency circulating pump, the flow rate is 0.05-0.1 m/s, and the algae liquid 14 stays in the device body 1 for 24-48 h. The fixed amount of carbon dioxide is 1.5 to 2.0 times of the yield of the algae. The circulating pump adopts a large-channel pulp pump to prevent the algae liquid from blocking the pump channel.
Be connected with intake pipe 6 between the algae growth layer and the light source subassembly at device body 1 for let in carbon dioxide gas, if contain the cogeneration unit or the boiler tail gas of about 15% carbon dioxide, its temperature is about 120 ℃, lets in from device body 1 bottom, provides the required carbon dioxide of photosynthesis for the algae production, and the interior algae liquid temperature of heating device body 1 simultaneously to improve algae growth rate. The highest temperature of the algae liquid is controlled to be not more than 40 ℃.
The bottom of the algae growth layer is connected with a discharge pipe 15 for discharging algae liquid in the device body 1 for further concentration and resource treatment.
Specifically, the shower assembly includes a plurality of shower branches 7 connected to the shower header 4, and a plurality of shower heads 8 mounted on the shower branches 7. The spray pump 5 is started to lift the algae liquid and the inlet water in the algae growth layer to the spray branch pipes 7 through the spray main pipe 4, and then the algae liquid and the inlet water are sprayed into the device body 1 through the spray head 8.
The light source assembly comprises two support plates 9 arranged in parallel up and down, and a plurality of light source tubes 10 arranged between the two support plates 9 at intervals, wherein a plurality of algae liquid dripping holes 9-1 (as shown in fig. 2) are arranged on the support plates 9. Preferably, the light source tube 10 is detachably arranged between the two supporting plates 9, so that the light source tube is convenient to detach and clean, and the light energy utilization rate is improved. The algae liquid sprayed by the spraying assembly drops to the algae growth layer through the algae liquid dropping holes 9-1 on the supporting plate 9.
Preferably, the device body 1 adopts a carbon steel tower structure, the height is 15-20 m, and the diameter is 2-20 m. The height of light source pipe 10 is 10 ~ 15m, and the diameter is 10 ~ 30mm, adopts waterproof light source pipe such as glass or organic glass, and perpendicular, evenly arrange in device body 1, light source pipe 10 quantity is according to the needs of handling water yield and alga production volume through calculating and confirming. The light source tube 10 (the illumination intensity is 1000-10000 Lux, can be adjusted) continuously illuminates for 24 hours, which is 2-3 times of the natural illumination time of sunlight.
In order to further optimize the implementation effect of the utility model, a plurality of air holes 12 are arranged below the air inlet pipe 6 of the device body 1, the air holes 12 are more than 1.5m above the ground, the algae liquid is sprayed and dropped to form micro negative pressure in the device body 1, and the tail gas with the pressure of 300 Pa-500 Pa can enter the device with the micro negative pressure, so that a carbon dioxide pressurizing device required by a closed culture system is not needed, and the energy consumption is saved. Because high temperature, its inside temperature is higher than ambient temperature in the device body 1, and density is low, and in the tail gas of bottom and partial air mended device body 1, tail gas was finally discharged toward device body 1 top. The tail gas flow is controlled by the regulating valve, and the tail gas flow can be regulated according to the algae yield.
Specifically, a plurality of bleeder vents 12 are followed 1 circumference of device body divides the multilayer staggered arrangement, and is preferred, and a plurality of bleeder vents 12 divide 3 ~ 5 layers to arrange, and the aperture of bleeder vent is 200 ~ 300mm, and interval 500mm between adjacent two-layer.
In order to remove water mist in the tail gas after the algae treatment, a demisting layer 11 is arranged above the spraying assembly of the device body 1, and the demisting layer 11 is the prior art, which is not described in detail herein.
In order to conveniently overhaul the device, overhaul holes 13 are formed in the device body 1 at different heights, and in the embodiment, four overhaul holes 13 are formed in the device body 1 from top to bottom.
The nitrogen and phosphorus-containing water suitable for the algae growth device mainly refers to water with the total nitrogen concentration of less than 50mg/L, the total phosphorus of less than 5mg/L and the COD of less than 500 mg/L. Such as black and odorous river water, water with micro-pollution of nitrogen and phosphorus or tail water discharged by urban sewage plants.
Nitrogen phosphorus waste water gets into spray header 4 via inlet tube 2, promote again to spray assembly department and evenly spray in device body 1, the carbon dioxide tail gas that discharges by intake pipe 6 promotes at algae liquid contrary contact with spray pump 5, provide the required carbon dioxide of photosynthesis for the alga, algae liquid is when enriching nitrogen phosphorus in the waste water, absorb the carbon dioxide in the tail gas, reduce the emission of carbon dioxide again when getting rid of the pollutant, have the dual effect of reducing pollution and lowering carbon, the tail gas after algae absorption processing is discharged behind defogging layer 11, algae liquid is discharged after the period of dwell in device body 1, further concentrate, resourceful treatment.
The retention time of the algae liquid in the device body 1 is 24-48 h, and 183tCO can be fixed every 100t of microalgae biomass produced2. The COD of the inlet water of the algae production device is less than 500mg/L, the total nitrogen is less than 50mg/L, the total phosphorus is less than 5mg/L, the removal rate of the COD and the total phosphorus is more than 80 percent, and the removal rate of the total phosphorus is more than 60 percent.
The above examples are only for illustrating the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. An algae production apparatus with adjustable growth conditions, characterized in that; the device comprises a device body, wherein a spraying assembly, a light source assembly and an algae growth layer are arranged in the device body from top to bottom;
the algae growth layer is communicated to the spraying assembly through a spraying main pipe, a spraying pump is arranged on the spraying main pipe, the spraying main pipe is connected with a water inlet pipe, and a water inlet pump is arranged on the water inlet pipe;
the device body is positioned between the algae growth layer and the light source component and is connected with an air inlet pipe for introducing carbon dioxide gas;
the bottom of the algae growth layer is connected with a discharge pipe.
2. Algae production plant with adjustable growth conditions according to claim 1, characterized in that: the spray assembly comprises a plurality of spray branch pipes communicated to the spray header pipe and a plurality of spray heads arranged on the spray branch pipes.
3. The algae production apparatus with adjustable growth conditions of claim 1, wherein: the light source assembly comprises two supporting plates arranged in parallel from top to bottom and a plurality of light source tubes arranged between the two supporting plates at intervals, and a plurality of algae liquid dripping holes are formed in the supporting plates.
4. Algae production plant with adjustable growth conditions according to claim 3, characterized in that: the height of the light source tube is 10-15 m, and the diameter of the light source tube is 10-30 mm.
5. Algae production plant with adjustable growth conditions according to claim 1, characterized in that: the device body is positioned below the air inlet pipe and is provided with a plurality of air holes.
6. Algae production plant with adjustable growth conditions according to claim 5, characterized in that: the plurality of air holes are distributed in a multilayer staggered manner along the circumferential direction of the device body.
7. Algae production plant with adjustable growth conditions according to claim 6, characterized in that: the plurality of air holes are distributed in 3-5 layers.
8. The algae production apparatus with adjustable growth conditions of claim 7, wherein: the aperture of the air holes is 200-300 mm, and the interval between every two adjacent layers is 500 mm.
9. The algae production apparatus with adjustable growth conditions of claim 1, wherein: the device body is positioned above the spraying assembly and is provided with a defogging layer.
10. Algae production plant with adjustable growth conditions according to claim 1, characterized in that: the height of the device body is 15-20 m, and the diameter is 2-20 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220417639.XU CN216997858U (en) | 2022-02-28 | 2022-02-28 | Algae production device with adjustable growth conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220417639.XU CN216997858U (en) | 2022-02-28 | 2022-02-28 | Algae production device with adjustable growth conditions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216997858U true CN216997858U (en) | 2022-07-19 |
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ID=82394299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220417639.XU Active CN216997858U (en) | 2022-02-28 | 2022-02-28 | Algae production device with adjustable growth conditions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216997858U (en) |
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2022
- 2022-02-28 CN CN202220417639.XU patent/CN216997858U/en active Active
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