CN104928172A - Ventilation and temperature control system for algae culture and algae culture system - Google Patents
Ventilation and temperature control system for algae culture and algae culture system Download PDFInfo
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- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
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Abstract
The invention relates to the technical field of biology, in particular to a ventilation and temperature control system for algae culture and an algae culture system. The ventilation and temperature control system comprises a heat-preserving water pond, a hot water generation unit, a cold water supply unit, a controller and a temperature sensor, wherein the temperature sensor is placed in the heat-preserving water pond and can monitor the temperature of water in the heat-preserving water pond in real time, a gas-liquid heat exchanger is immersed in the heat-preserving water pond, one end of the gas-liquid heat exchanger is communicated with ventilation equipment, the other end is connected with a bioreactor, the temperature of the heat-preserving water pond is kept to be proper to realize heat exchange with the gas-liquid heat exchanger to transmit heat to gas of the gas-liquid heat exchanger, the gas-liquid heat exchanger is communicated with a photobioreactor, air or carbon dioxide fed into the photobioreactor can have temperature facilitating microalgae growth, and after the air or carbon dioxide is fed into the photobioreactor, a suitable environment can be provided for microalgae growth.
Description
Technical field
The present invention relates to biological technical field, particularly relate to a kind of ventilation temperature control system for algal culture and algal culture system.
Background technology
Micro-algae is the plant plankton that of a great variety in water body, the widely distributed and individuality of a class growth is generally less than 2mm, the production organism factory that their cell drives just as sunlight, by its efficient photosynthesis, utilizes luminous energy, absorption CO
2and H
2they are converted into the chemical energy such as carbohydrate, protein, fat, and discharge O by O
2.
" the efficient large-scale cultivation technology of micro-algae " is one of core of Microalgae biotechnology at present.Usually, algae liquid level, in bioreactor, passes into air or carbonic acid gas by aeration equipment to bioreactor, has breather line between bioreactor and aeration equipment.Existing bioreactor comprises closed photo bioreactor, i.e. closed culture systems, is the bio-reactor built with transparent material.This bio-reactor is except gathering except luminous energy, and Miscellaneous and traditional fermentable bio-reactor have many similarities.Closed photo bioreactor can realize micro-algae single, purebred cultivation, and culture condition is easy to control, and culture density is high, easily gather in the crops, so efficiency is higher, but builds and also improves with running cost thereupon.
Such as Chinese patent ZL02134235.0 discloses a kind of automatic continuous production tubular type bioreactor, its reaction vessel is the cylinder shape communicating pipe of transparent light transmissive material, there are inlet end and exit end, and access mixing tank, reactor is by intersecting superposition and the three-dimensional pipeline that formed multilayer " U " type communicating pipe, and light source is positioned at and intersects the " # " font solid space of superposition and formation communicating pipe.Although this both culturing microalgae mode and equipment overcome the extensive shortcoming in open pond, complex structure, large-scale device is difficult to realize, and laid down cost is high, and is difficult to make full use of natural sunlight, is unsuitable for micro-algae low cost, large-scale cultivation.
Chinese patent ZL03128138.9 discloses a kind of closed tubular type bioreactor, by solid double flat spin formula pipeline and unique U-shaped connecting bend, and double tower, zero shearing force infusion pump, carbonic acid gas gas injection device, the formations such as cool-heat-exchanger.Deoxygenation reaction tower in double tower is provided with negative pressure squirt pump, effectively can get rid of the accumulation oxygen in nutrient solution, regulation and control tower can reconcile hydraulic pressure and with negative pressure to reacting pipe automatic transport nutrient solution.It is large that this reactor overcomes conventional reactor floor space, and inefficient shortcoming, can accomplish scale production, but complex structure, and manufacturing cost is high.And reactor erects placement, nutrient solution and algae liquid need very large energy consumption to be transported to top from bottom, greatly increase, also increase both culturing microalgae cost to the shearing force of algal filament.
Chinese patent CN1721523A discloses the bioreactor that a kind of microalgae mass is cultivated, and comprises the compositions such as transparent pipeline, gas resolver, auxiliary pipeline system, culture parameters impression and control device.Adopt large-scale gas resolver, transparent pipeline arranged in parallel is carried out parallel connection, solve a difficult problem for closed conduct bioreactor gaseous interchange, but there is manufacturing cost and the high problem of process cost equally.
Chinese patent ZL96216364.3 discloses the latent helical layer algae culturing device of a kind of hermetic type circulation, be connected in sequence by Spirulina, the board-like bioreactor of overflow, reservoir, recycle pump, the board-like bioreactor of overflow wherein adopting light transmissive material to make is placed and the supporting plate of the band baffle plate of the overflow port cross-distribution of levels built with multiple-layer horizontal.Although this reactor efficiency is very high, multilayer support board structure is very complicated, is unfavorable for amplifying production on a large scale.
And also there is following problem in existing runway recognition technology: 1, algae liquid temp and intensity of illumination can not control, and the efficiency of light energy utilization is low, and algal grown environment is poor, cause and yield poorly and quality shakiness; 2, open cultivation, be subject to other biological pollution, sanitary condition is poor, affects algae opaque amount; 3, the power consumption of runway recognition stirring system is large, and the stirring task of two booths born by 1500 watts of motors, and the booth of 110 meters long is insufficient owing to stirring, and causes low yield and quality shakiness; 4, traditional runway recognition key element is difficult to realize Automated condtrol, and breeding production efficiency is low.
Therefore, for above deficiency, need to provide that a kind of growing environment is with favourable conditions, energy-saving low-carbon, make full use of the natural resources, micro-algae production efficiency is high, cost is low, be applicable to the algal culture bioreactor of large scale culturing.
Summary of the invention
(1) technical problem that will solve
The object of this invention is to provide a kind of ventilation temperature control system for algal culture and algal culture system, solve on the one hand the algae liquid growth temperature that exists in existing algal culture technology and illumination can not control, the problem of growing environment difference; Solve in existing algal culture technology on the other hand and there is the problem that energy consumption is high, production efficiency is low and cost is high.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of ventilation temperature control system for algal culture, it comprises insulation pond, hot water generation unit, cold feed unit, gas-liquid heat exchanger and controller, and cold feed unit, hot water generation unit and insulation pond connect successively; Gas-liquid heat exchanger is immersed in insulation pond, and gas-liquid heat exchanger one end is communicated with aeration equipment, and the other end is connected with bioreactor; Controller is connected with cold feed unit and hot water generation unit, with the generation of the supply and hot water generation unit hot water that control cold feed unit cold water.
Wherein, described hot water generation unit is solar water heater, and the installation site of solar water heater is higher than insulation pond, and be provided with micropore gas decollator bottom described bioreactor, gas-liquid heat exchanger is connected with micropore gas decollator.
Wherein, described cold feed unit comprises cold water source and water supply pump, and described cold water source is communicated with solar water heater by water supply pump, and described water supply pump is connected with controller.
Wherein, be provided with temperature sensor in described insulation pond, temperature sensor is connected with controller.
Wherein, described insulation pond and water cooling pond are three-back-shaped, and water cooling pond is positioned at the outside in insulation pond, and the height of water cooling pond is lower than the height in insulation pond, and the top in insulation pond is provided with the overflow ducts being communicated with insulation pond and water cooling pond.
Wherein, described aeration equipment comprises the revolution speed control mechanism for revolutable and pressurized gas hold-up vessel that are connected, and pressurized gas hold-up vessel is connected with gas-liquid heat exchanger.
The present invention on the other hand provides a kind of algal culture system, and it comprises bioreactor, aeration equipment and above-mentioned breather line temperature control system, and described bioreactor and aeration equipment are incubated gas-liquid heat exchanger in pond are connected by being immersed in.
Wherein, described bioreactor comprises reactor body, separating element and aeration equipment, and described reactor body is the hyalosome of back cover tubulose; Described separating element is positioned at the inside of described reactor body, described reactor body is divided into left and right two spaces, and the passage be communicated with for left and right two spaces is all left in top and the bottom of described separating element; Described gas-liquid heat exchanger is communicated with the bottom in arbitrary space of described reactor body.
Wherein, described separating element is the transparent calandria structure that row's vertical tube is in turn connected to form, and each vertical tube upper and lower end sealing, by arranging light source in the vertical tube in mid-way; Be provided with ultrasonic cleaning rod in reactor body, ultrasonic cleaning rod is connected with controller.
Wherein, it also comprises feed liquor pipe network, fluid pipe network and multiple bioreactor, and the fluid inlet of each bioreactor is connected with feed liquor pipe network, and the liquid outlet of each bioreactor is connected with fluid pipe network.
(3) beneficial effect
Technique scheme tool of the present invention has the following advantages: under the control of the controller, cold feed unit is hot water generation unit supply water source, hot water generation unit leads to insulation pond after producing hot water, temperature sensor be placed on insulation pond in can Real-Time Monitoring insulation pond in water temperature, insulation pond keeps suitable water temperature and then carries out heat exchange with gas-liquid heat exchanger, transfer heat to the gas of gas-liquid heat exchanger, gas-liquid heat exchanger is communicated with bioreactor, the air or the carbon dioxide that pass into bioreactor can have the temperature being beneficial to micro algae growth, pass into after in bioreactor, can be micro algae growth and enabling environment is provided, insulation sump water temperature information is passed to controller by temperature sensor, and controller carries out judging and controls hot water generation unit and cold feed unit carries out work, and then ensures that the water temperature in insulation pond is in suitable state.
In addition, in the ventilation temperature control system for algal culture provided by the invention and algal culture system, described insulation pond and water cooling pond are designed to adjacent or three-back-shaped, and design is achieved many things at one stroke like this: 1. the temperature can correcting insulation pond hot water so in time; 2. unnecessary heat is given to water cooling pond in time, reduces heat loss, improve water cooling pond water temperature, make water-heater shortening heat-up time, save energy; 3. the installation site of solar water heater is higher than insulation pond, utilizes the discrepancy in elevation in this solar water heater and insulation pond and the difference of altitude of insulation pond and water cooling pond, realizes gravity flow and overflow, efficient energy-saving; 4. design is ingenious and simple and direct, easily realizes mass-producing.The pressurized air of design temperature (also can be mixed into certain density CO by the present invention
2gas) pass into bioreactor and achieve many things at one stroke, namely achieve the abundant mixing of algae liquid, realize viable cell gaseous interchange at any time and the discharge of oxygen, also achieve the control of algae liquid temp, also can be micro-algae and carbon source is provided.Here heat energy comes from sun power, and pressurized air can be come from wind energy, CO
2gas comes from the waste gas got rid of through pretreated factory, and therefore, this system makes full use of the natural resources as micro-algae provides suitable environment, and be that whole cultivating system uses clear energy sources, low-carbon (LC), green, environmental protection, easily be automated control; The design that the present invention is connected with feed liquor pipe network and fluid pipe network by each bioreactor, structure is simple and direct, and assembling flexibly, can make algal culture realization condition controlled, clean low-carbon (LC), environmental friendliness, steady matter high yield, low cost movement and large-scale production.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention algal culture system schematic.
In figure, 1: bioreactor; 2: insulation pond; 3: gas-liquid heat exchanger; 4: cold feed unit; 5: hot water generation unit; 6: temperature sensor; 7: controller; 8: aeration equipment; 101: ultrasonic rod; 102: transparent calandria structure; 401: water cooling pond; 402: water supply pump; 801: pressurized air storage tank; 802: wind power air compressor.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, the invention provides a kind of ventilation temperature control system for algal culture, it comprises insulation pond 2, hot water generation unit 5, cold feed unit 4, gas-liquid heat exchanger, controller 7 and temperature sensor 6, and cold feed unit 4, hot water generation unit 5 and insulation pond 2 connect successively; Gas-liquid heat exchanger one end is communicated with aeration equipment, the other end is connected with bioreactor, gas-liquid heat exchanger 3 between bioreactor 1 and aeration equipment 8 is immersed in insulation pond 2, gas-liquid thermal exchange is made to reach balance, temperature sensor 6 is arranged on and is incubated in pond 2 and is connected with controller 7, hot water generation unit 5 and cold feed unit 4 are electrically connected with controller 7, control work respectively by controller.
In above-described embodiment, under the control of the controller, cold feed unit is hot water generation unit supply water source, hot water generation unit leads to insulation pond after producing hot water, temperature sensor 6 be placed on insulation pond 2 in can Real-Time Monitoring insulation pond 2 in water temperature, insulation pond 2 keeps suitable water temperature and then carries out heat exchange with gas-liquid heat exchanger 3, transfer heat to the gas of gas-liquid heat exchanger 3, gas-liquid heat exchanger 3 is communicated with bioreactor, the air or the carbon dioxide that pass into bioreactor can have the temperature being beneficial to micro algae growth, pass into after in bioreactor 1, can be micro algae growth and enabling environment is provided, insulation pond 2 water temperature information is passed to controller 7 by temperature sensor 6, and controller 7 carries out judging and controls hot water generation unit 5 and cold feed unit 4 carries out work, and then ensures that the water temperature in insulation pond 2 is in suitable state.
Wherein, aeration equipment comprises the revolution speed control mechanism for revolutable and pressurized gas hold-up vessel that are connected, and pressurized gas hold-up vessel is connected with gas-liquid heat exchanger.
Particularly, hot water generation unit 5 is solar water heater, and solar water heater is communicated with insulation pond 2, to provide hot water to insulation pond 2; Micropore gas decollator is provided with bottom bioreactor, gas-liquid heat exchanger is connected with micropore gas decollator, pass into the dispersion through micropore gas decollator of air in bioreactor or carbonic acid gas, can evenly pass in algae liquid, be conducive to and fully the mixing of algae liquid, be beneficial to micro algae growth; Particularly, cold feed unit 4 comprises cold water source and water supply pump 402, and cold water source is specially water cooling pond 401, and water cooling pond 401 is communicated with solar water heater by water supply pump 402.
Described cold water source (pond) is communicated with solar water heater inlet pipe by water supply pump, the change of water temperature in controller and this water-heater of temperature sensor monitors, when reaching design temperature, water supply pump starts, the hot water of design temperature is replaced and flows to insulation pond, at this moment the cold water needing heating filled again by this water-heater, go round and begin again just constantly for insulation pond provides the hot water of design temperature like this, thus reach the object controlling water temperature, also just control compressed-air actuated temperature in described heat exchanger, and then control the temperature of bioreactor; There is provided thermal water source by solar water heater, make use of this clear energy sources of sun power, low-carbon environment-friendly.
Preferably, described insulation pond 2 is designed to adjacent or three-back-shaped with water cooling pond 401, the inside is insulation pond, surrounding is water cooling pond, usually, the height of water cooling pond is lower than the height being incubated pond, and the top in insulation pond is provided with the overflow ducts (overflow port) being communicated with insulation pond and water cooling pond, when hot water exceedes insulation pond volume, hot water flows into water cooling pond automatically by overflow port.Such design reduces heat to greatest extent and scatters and be incubated pond insulation, insulation pond temperature is controlled more convenient.
The algal culture system that the present invention provides on the other hand comprises bioreactor 1, aeration equipment 8 and above-mentioned breather line temperature control system, and bioreactor 1 and aeration equipment 8 are incubated gas-liquid heat exchanger 3 in pond 2 are connected by being immersed in.Aeration equipment 8 is preferably connected wind power air compressor 802 and pressurized air storage tank 801, pressurized air storage tank 801 is connected with gas-liquid heat exchanger 3, like this while realizing source of the gas supply, effectively can utilize wind energy by wind power air compressor 802, low-carbon environment-friendly.
Particularly, bioreactor 1 comprises reactor body, separating element and aeration equipment 8, and reactor body is the hyalosome of back cover tubulose; Separating element is positioned at the inside of reactor body, reactor body is divided into left and right two spaces, and the passage be communicated with for left and right two spaces is all left in top and the bottom of separating element; Gas-liquid heat exchanger 3 is communicated with the bottom in arbitrary space of reactor body.
Reactor body is divided into two spaces by above-mentioned separating element, a space bottom is connected with aeration equipment 8 up-draught, because the gas passed into causes the algae liquor ratio in this space heavily to strengthen, the algae liquid in two spaces is made to form the difference of proportion, the algae liquid of ventilation space runs to the passage left by two top of space at top, non-ventilation space is entered along with downward liquid flows to lower operation, and then run to the passage left by two space bottom bottom, along with liquid flows to into ventilation space, the algae liquid four-dimension circulation mixing of the front and back up and down of such formation is different to be mixed with traditional air lift type, add mixing efficiency, add ventilatory function, decrease the consumption of tolerance.
Further, separating element is the transparent calandria structure 102 that row's vertical tube is in turn connected to form, and each vertical tube upper and lower end sealing, by arranging light source in the vertical tube in mid-way, the illumination condition that can improve bioreactor 1 inside is set by light source, and then is conducive to the growth of micro-algae; Be provided with ultrasonic cleaning rod in reactor body, ultrasonic cleaning rod is connected with controller 7, and control ultrasonic cleaning rod by controller 7, reactor fills clear water and puts into ultrasonic excellent 101, realizes ultrasonic automatic washing.
Further; algal culture system comprises feed liquor pipe network, fluid pipe network and multiple bioreactor 1; the fluid inlet of each bioreactor 1 is connected with feed liquor pipe network; the liquid outlet of each bioreactor 1 is connected with fluid pipe network; like this, by feed liquor pipe network, fluid pipe network and multiple bioreactor 1, the large-scale cultivation that can improve micro-algae is set.
In the above embodiment of the present invention, sun power and wind energy are fused to algal culture system, achieve energy utilization clear energy sources in microalga cultivation process (energy of 95-99% can be provided), realize green low-carbon cultivation; In algal culture system, the cultivating condition such as temperature controls by controller 7 (being generally computer), thus reaches the object of stable high yield; Also control to reach the object that microalgae cell accumulates the accumulation of certain or some biologically active substance by cultivating condition.
In sum, in ventilation temperature control system for algal culture provided by the invention and algal culture system, utilize and determine that the pressurized air of temperature or carbon dioxide pass into bioreactor 1 and not only make frustule realize mixing in advance, and possess the effect of regulation and control algae liquid temp; The central authorities of bioreactor 1 establish transparent calandria structure 102, by arranging light source in the vertical tube in mid-way, can make algae liquid obtain smoothly circulate (four-dimensional circulating mixing), again can in pipe light filling, working flare and algae liquid are isolated, good illumination condition is provided; Utilize solar water heater and wind power air compressor 802, luminous energy and wind energy are introduced photo-bioreactor system and algal culture system, make both culturing microalgae power consumption drop to minimum, green low-carbon environment-friendly; By the setting of feed liquor pipe network, fluid pipe network and multiple bioreactor 1, the industrial scale expansion of the present invention of algal culture system, production efficiency raising and and production cost reduction can be made.
Below be only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (10)
1. for a ventilation temperature control system for algal culture, it is characterized in that: it comprises insulation pond, hot water generation unit, cold feed unit, gas-liquid heat exchanger and controller, cold feed unit, hot water generation unit and insulation pond connect successively; Gas-liquid heat exchanger is immersed in insulation pond, and gas-liquid heat exchanger one end is communicated with aeration equipment, and the other end is connected with bioreactor; Controller is connected with cold feed unit and hot water generation unit, with the generation of the supply and hot water generation unit hot water that control cold feed unit cold water.
2. the ventilation temperature control system for algal culture according to claim 1, it is characterized in that: described hot water generation unit is solar water heater, the installation site of solar water heater is higher than insulation pond, be provided with micropore gas decollator bottom described bioreactor, gas-liquid heat exchanger is connected with micropore gas decollator.
3. the ventilation temperature control system for algal culture according to claim 2, is characterized in that: described cold feed unit comprises cold water source and water supply pump, and described cold water source is communicated with solar water heater by water supply pump, and described water supply pump is connected with controller.
4. the ventilation temperature control system for algal culture according to claim 3, is characterized in that: be provided with temperature sensor in described insulation pond, temperature sensor is connected with controller.
5. the ventilation temperature control system for algal culture according to claim 4, it is characterized in that: described cold water source is water cooling pond, described insulation pond and water cooling pond are three-back-shaped, water cooling pond is positioned at the outside in insulation pond, and the height of water cooling pond is lower than the height in insulation pond, the top in insulation pond is provided with the overflow ducts being communicated with insulation pond and water cooling pond.
6. the ventilation temperature control system for algal culture according to claim 1, is characterized in that: described aeration equipment comprises the revolution speed control mechanism for revolutable and pressurized gas hold-up vessel that are connected, and pressurized gas hold-up vessel is connected with gas-liquid heat exchanger.
7. an algal culture system, it is characterized in that: it comprises bioreactor, aeration equipment and the breather line temperature control system described in any one of claim 1-6, described bioreactor and aeration equipment are incubated gas-liquid heat exchanger in pond are connected by being immersed in.
8. algal culture system according to claim 7, is characterized in that: described bioreactor comprises reactor body, separating element and aeration equipment, described reactor body is the hyalosome of back cover tubulose; Described separating element is positioned at the inside of described reactor body, described reactor body is divided into left and right two spaces, and the passage be communicated with for left and right two spaces is all left in top and the bottom of described separating element; Described gas-liquid heat exchanger is communicated with the bottom in arbitrary space of described reactor body.
9. algal culture system according to claim 7, is characterized in that: described separating element is the transparent calandria structure that row's vertical tube is in turn connected to form, and each vertical tube upper and lower end sealing, by arranging light source in the vertical tube in mid-way; Be provided with ultrasonic cleaning rod in reactor body, ultrasonic cleaning rod is connected with controller.
10. algal culture system according to claim 7, it is characterized in that: it also comprises feed liquor pipe network, fluid pipe network and multiple bioreactor, the fluid inlet of each bioreactor is connected with feed liquor pipe network, and the liquid outlet of each bioreactor is connected with fluid pipe network.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510257777.0A CN104928172B (en) | 2015-05-19 | 2015-05-19 | Ventilation temperature control system and algal culture system for algal culture |
| JP2018512471A JP6570736B2 (en) | 2015-05-19 | 2016-05-18 | Algal aquaculture photobioreactor and algae culture system |
| KR1020177036632A KR102043623B1 (en) | 2015-05-19 | 2016-05-18 | Photobioreactors for algal farming and algal farming systems |
| PCT/CN2016/082541 WO2016184394A2 (en) | 2015-05-19 | 2016-05-18 | Photobioreactor used for algae cultivation, and algae cultivation system |
| US15/575,282 US11319522B2 (en) | 2015-05-19 | 2016-05-18 | Photobioreactor used for algae cultivation, and algae cultivation system |
| ZA2017/08668A ZA201708668B (en) | 2015-05-19 | 2017-12-19 | Photobioreactor used for algae cultivation, and algae cultivation system |
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| CN201510257777.0A CN104928172B (en) | 2015-05-19 | 2015-05-19 | Ventilation temperature control system and algal culture system for algal culture |
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| CN104928172A true CN104928172A (en) | 2015-09-23 |
| CN104928172B CN104928172B (en) | 2018-02-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184394A2 (en) * | 2015-05-19 | 2016-11-24 | 何忠志 | Photobioreactor used for algae cultivation, and algae cultivation system |
| CN109554277A (en) * | 2018-12-26 | 2019-04-02 | 博生微藻(北京)科技有限公司 | Bioreactor both culturing microalgae system and pipe network system |
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| WO2016184394A3 (en) * | 2015-05-19 | 2017-02-09 | 何忠志 | Photobioreactor used for algae cultivation, and algae cultivation system |
| US11319522B2 (en) | 2015-05-19 | 2022-05-03 | Zhongzhi He | Photobioreactor used for algae cultivation, and algae cultivation system |
| CN109554277A (en) * | 2018-12-26 | 2019-04-02 | 博生微藻(北京)科技有限公司 | Bioreactor both culturing microalgae system and pipe network system |
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| CN104928172B (en) | 2018-02-13 |
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